May 2016 - LKP - Ml01.01.Org

Re: [LKP] [rcu] kernel BUG at include/linux/pagemap.h:149!

by Frederic Weisbecker

On Fri, Sep 11, 2015 at 10:19:47AM +0800, Boqun Feng wrote: > Subject: [PATCH 01/27] rcu: Don't disable preemption for Tiny and Tree RCU > readers > > Because preempt_disable() maps to barrier() for non-debug builds, > it forces the compiler to spill and reload registers. Because Tree > RCU and Tiny RCU now only appear in CONFIG_PREEMPT=n builds, these > barrier() instances generate needless extra code for each instance of > rcu_read_lock() and rcu_read_unlock(). This extra code slows down Tree > RCU and bloats Tiny RCU. > > This commit therefore removes the preempt_disable() and preempt_enable() > from the non-preemptible implementations of __rcu_read_lock() and > __rcu_read_unlock(), respectively. > > For debug purposes, preempt_disable() and preempt_enable() are still > kept if CONFIG_PREEMPT_COUNT=y, which makes the detection of sleeping > inside atomic sections still work in non-preemptible kernels. > > Signed-off-by: Boqun Feng <boqun.feng(a)gmail.com> > Signed-off-by: Paul E. McKenney <paulmck(a)linux.vnet.ibm.com> > --- > include/linux/rcupdate.h | 6 ++++-- > include/linux/rcutiny.h | 1 + > kernel/rcu/tree.c | 9 +++++++++ > 3 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h > index d63bb77..6c3cece 100644 > --- a/include/linux/rcupdate.h > +++ b/include/linux/rcupdate.h > @@ -297,12 +297,14 @@ void synchronize_rcu(void); > > static inline void __rcu_read_lock(void) > { > - preempt_disable(); > + if (IS_ENABLED(CONFIG_PREEMPT_COUNT)) > + preempt_disable(); preempt_disable() is a no-op when !CONFIG_PREEMPT_COUNT, right? Or rather it's a barrier(), which is anyway implied by rcu_read_lock(). So perhaps we can get rid of the IS_ENABLED() check?

3 years, 2 months

4
4
0 / 0

Extending the 0-day system with syzkaller?

by David Drysdale

Hi Fengguang / LKP-folk, Quick question -- how easy is it to add extra builds/tests/checks to your marvellous 0-day kbuild system? The reason I ask is that I've recently been exploring syzkaller [1], which is a system call fuzzer written by some of my colleagues here at Google (cc'ed). Although it's fairly new, it has uncovered a bunch of kernel bugs already [2] so I wondered if it might be a good candidate for inclusion in the 0-day checks at some point. (As an aside, I'm in the process of writing an article about syzkaller for LWN, which might also expose it to more folk.) What do you think? Thanks, David [1] https://github.com/google/syzkaller [2] https://github.com/google/syzkaller/wiki/Found-Bugs

6 years, 2 months

7
14
0 / 0

[lkp] [dcache_{readdir, dir_lseek}() users] 4e82901cd6: reaim.jobs_per_min -49.1% regression

by kernel test robot

FYI, we noticed reaim.jobs_per_min -49.1% regression due to commit: commit 4e82901cd6d1af21ae232ae835c36d8230c809e8 ("dcache_{readdir,dir_lseek}() users: switch to ->iterate_shared") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master in testcase: reaim on test machine: lkp-hsx04: 144 threads Brickland Haswell-EX with 512G memory with following parameters: cpufreq_governor=performance/iterations=4/nr_task=1600%/test=fserver Details are as below: --------------------------------------------------------------------------------------------------> ========================================================================================= compiler/cpufreq_governor/iterations/kconfig/nr_task/rootfs/tbox_group/test/testcase: gcc-4.9/performance/4/x86_64-rhel/1600%/debian-x86_64-2015-02-07.cgz/lkp-hsx04/fserver/reaim commit: 3125d2650cae97d8f313ab696cd0ed66916e767a 4e82901cd6d1af21ae232ae835c36d8230c809e8 3125d2650cae97d8 4e82901cd6d1af21ae232ae835 ---------------- -------------------------- %stddev %change %stddev \ | \ 189504 ± 5% -49.1% 96506 ± 1% reaim.jobs_per_min 82.25 ± 5% -49.1% 41.89 ± 1% reaim.jobs_per_min_child 486.97 ± 6% +2540.6% 12859 ± 1% reaim.child_systime 377.56 ± 0% +14.0% 430.41 ± 0% reaim.child_utime 66.25 ± 0% +32.4% 87.69 ± 1% reaim.jti 191210 ± 5% -48.4% 98588 ± 2% reaim.max_jobs_per_min 73.90 ± 5% +95.9% 144.75 ± 1% reaim.parent_time 33.26 ± 1% -64.8% 11.71 ± 10% reaim.std_dev_percent 18.74 ± 4% -17.6% 15.44 ± 10% reaim.std_dev_time 304.45 ± 5% +93.1% 587.85 ± 1% reaim.time.elapsed_time 304.45 ± 5% +93.1% 587.85 ± 1% reaim.time.elapsed_time.max 1049052 ± 0% +44.3% 1513524 ± 1% reaim.time.involuntary_context_switches 1.766e+08 ± 0% +1.1% 1.784e+08 ± 0% reaim.time.minor_page_faults 1137 ± 1% +695.0% 9043 ± 1% reaim.time.percent_of_cpu_this_job_got 1950 ± 6% +2537.6% 51439 ± 1% reaim.time.system_time 1510 ± 0% +14.0% 1721 ± 0% reaim.time.user_time 7816334 ± 2% -26.5% 5744712 ± 3% reaim.time.voluntary_context_switches 358.57 ± 4% +78.9% 641.41 ± 1% uptime.boot 47094 ± 4% -55.0% 21202 ± 5% uptime.idle 632750 ± 7% +583.2% 4323189 ± 6% softirqs.RCU 573650 ± 0% +79.8% 1031264 ± 0% softirqs.SCHED 3249858 ± 1% +813.2% 29677185 ± 1% softirqs.TIMER 941405 ± 0% +33.9% 1260181 ± 1% vmstat.memory.cache 1.50 ± 33% +25466.7% 383.50 ± 12% vmstat.procs.b 11.75 ± 9% +1551.1% 194.00 ± 3% vmstat.procs.r 66096 ± 6% -59.7% 26611 ± 2% vmstat.system.cs 13790 ± 2% +679.2% 107457 ± 2% vmstat.system.in 304.45 ± 5% +93.1% 587.85 ± 1% time.elapsed_time 304.45 ± 5% +93.1% 587.85 ± 1% time.elapsed_time.max 1049052 ± 0% +44.3% 1513524 ± 1% time.involuntary_context_switches 1137 ± 1% +695.0% 9043 ± 1% time.percent_of_cpu_this_job_got 1950 ± 6% +2537.6% 51439 ± 1% time.system_time 1510 ± 0% +14.0% 1721 ± 0% time.user_time 7816334 ± 2% -26.5% 5744712 ± 3% time.voluntary_context_switches 5.521e+08 ± 2% +128.2% 1.26e+09 ± 9% cpuidle.C1-HSW.time 1119526 ± 12% +39.4% 1560698 ± 8% cpuidle.C1-HSW.usage 1.473e+09 ± 3% -26.0% 1.09e+09 ± 13% cpuidle.C1E-HSW.time 3341952 ± 0% -81.1% 631688 ± 8% cpuidle.C1E-HSW.usage 3.215e+08 ± 9% +626.5% 2.336e+09 ± 9% cpuidle.C3-HSW.time 400710 ± 3% +123.0% 893484 ± 5% cpuidle.C3-HSW.usage 3.797e+10 ± 5% -38.3% 2.342e+10 ± 3% cpuidle.C6-HSW.time 4992473 ± 0% -38.2% 3086799 ± 4% cpuidle.C6-HSW.usage 86345226 ± 17% +246.7% 2.993e+08 ± 9% cpuidle.POLL.time 680.00 ± 6% +441.2% 3680 ± 11% cpuidle.POLL.usage 8.28 ± 1% +707.7% 66.86 ± 1% turbostat.%Busy 241.50 ± 1% +700.9% 1934 ± 1% turbostat.Avg_MHz 19.38 ± 2% +25.8% 24.39 ± 1% turbostat.CPU%c1 0.90 ± 8% +86.7% 1.68 ± 7% turbostat.CPU%c3 71.44 ± 0% -90.1% 7.07 ± 4% turbostat.CPU%c6 40.50 ± 2% +30.2% 52.75 ± 3% turbostat.CoreTmp 6.20 ± 3% -87.9% 0.75 ± 13% turbostat.Pkg%pc2 44.75 ± 1% +25.7% 56.25 ± 1% turbostat.PkgTmp 264.66 ± 0% +83.6% 485.92 ± 0% turbostat.PkgWatt 235.00 ± 0% +2.3% 240.47 ± 0% turbostat.RAMWatt 679219 ± 0% +30.0% 883283 ± 1% meminfo.Active 576849 ± 0% +35.3% 780525 ± 2% meminfo.Active(anon) 562337 ± 0% +17.2% 659238 ± 1% meminfo.AnonPages 510249 ± 0% +19.7% 610864 ± 1% meminfo.Cached 2279043 ± 0% +22.0% 2780860 ± 3% meminfo.Committed_AS 10600 ± 0% +16.4% 12336 ± 3% meminfo.Inactive(anon) 57088 ± 0% +256.1% 203274 ± 5% meminfo.KernelStack 18972 ± 0% +9.3% 20734 ± 4% meminfo.Mapped 109131 ± 5% +30.5% 142400 ± 3% meminfo.PageTables 84481 ± 0% +25.7% 106227 ± 1% meminfo.SReclaimable 346606 ± 0% +57.4% 545507 ± 3% meminfo.SUnreclaim 25419 ± 1% +395.4% 125929 ± 9% meminfo.Shmem 431088 ± 0% +51.2% 651735 ± 2% meminfo.Slab 25.10 ± 4% -88.1% 2.98 ± 13% perf-profile.cycles-pp.call_cpuidle 26.12 ± 4% -88.4% 3.02 ± 13% perf-profile.cycles-pp.cpu_startup_entry 25.10 ± 4% -88.1% 2.98 ± 13% perf-profile.cycles-pp.cpuidle_enter 23.90 ± 4% -87.7% 2.95 ± 13% perf-profile.cycles-pp.cpuidle_enter_state 23.59 ± 3% -87.8% 2.87 ± 13% perf-profile.cycles-pp.intel_idle 1.10 ± 2% -100.0% 0.00 ± -1% perf-profile.cycles-pp.reschedule_interrupt 1.38 ± 6% -87.1% 0.18 ± 49% perf-profile.cycles-pp.rest_init 1.10 ± 2% -100.0% 0.00 ± -1% perf-profile.cycles-pp.scheduler_ipi 1.10 ± 2% -100.0% 0.00 ± -1% perf-profile.cycles-pp.smp_reschedule_interrupt 1.38 ± 6% -87.1% 0.18 ± 49% perf-profile.cycles-pp.start_kernel 24.80 ± 4% -88.5% 2.84 ± 11% perf-profile.cycles-pp.start_secondary 1.38 ± 6% -87.1% 0.18 ± 49% perf-profile.cycles-pp.x86_64_start_kernel 1.38 ± 6% -87.1% 0.18 ± 49% perf-profile.cycles-pp.x86_64_start_reservations 144401 ± 0% +35.4% 195475 ± 1% proc-vmstat.nr_active_anon 140772 ± 0% +17.3% 165063 ± 1% proc-vmstat.nr_anon_pages 127559 ± 0% +19.8% 152794 ± 1% proc-vmstat.nr_file_pages 2649 ± 0% +16.2% 3079 ± 3% proc-vmstat.nr_inactive_anon 0.00 ± 0% +Inf% 427.25 ± 5% proc-vmstat.nr_isolated_anon 3574 ± 0% +254.6% 12675 ± 4% proc-vmstat.nr_kernel_stack 27385 ± 6% +30.0% 35613 ± 3% proc-vmstat.nr_page_table_pages 6352 ± 1% +396.9% 31560 ± 9% proc-vmstat.nr_shmem 21119 ± 0% +25.8% 26563 ± 1% proc-vmstat.nr_slab_reclaimable 86645 ± 0% +57.2% 136181 ± 3% proc-vmstat.nr_slab_unreclaimable 18704 ± 91% +6342.3% 1204981 ± 1% proc-vmstat.numa_hint_faults 7213 ±107% +7548.2% 551723 ± 2% proc-vmstat.numa_hint_faults_local 41554 ± 1% +13.0% 46949 ± 3% proc-vmstat.numa_other 34.75 ± 25% +9.5e+05% 330841 ± 4% proc-vmstat.numa_pages_migrated 75.00 ± 0% +2.4e+06% 1806450 ± 1% proc-vmstat.numa_pte_updates 6980 ± 3% +286.5% 26983 ± 14% proc-vmstat.pgactivate 9.75 ± 46% +29151.3% 2852 ± 6% proc-vmstat.pgmigrate_fail 34.75 ± 25% +9.5e+05% 330841 ± 4% proc-vmstat.pgmigrate_success 30962 ± 2% +49.7% 46340 ± 22% numa-vmstat.node0.nr_file_pages 1336 ± 26% +176.5% 3696 ± 17% numa-vmstat.node0.nr_kernel_stack 655.25 ±138% +2346.8% 16032 ± 64% numa-vmstat.node0.nr_shmem 4444 ± 4% +60.6% 7138 ± 4% numa-vmstat.node0.nr_slab_reclaimable 24105 ± 13% +52.7% 36818 ± 14% numa-vmstat.node0.nr_slab_unreclaimable 37828 ± 8% +20.4% 45545 ± 10% numa-vmstat.node1.nr_active_anon 0.00 ± 0% +Inf% 104.75 ± 4% numa-vmstat.node1.nr_isolated_anon 777.00 ± 1% +263.0% 2820 ± 7% numa-vmstat.node1.nr_kernel_stack 21035 ± 3% +49.4% 31432 ± 3% numa-vmstat.node1.nr_slab_unreclaimable 19261584 ± 3% -8.3% 17664368 ± 6% numa-vmstat.node1.numa_local 6445 ± 5% -6.9% 6000 ± 2% numa-vmstat.node2.nr_active_file 731.75 ± 54% +274.9% 2743 ± 11% numa-vmstat.node2.nr_kernel_stack 5668 ± 9% +21.7% 6898 ± 6% numa-vmstat.node2.nr_slab_reclaimable 20284 ± 17% +52.0% 30833 ± 11% numa-vmstat.node2.nr_slab_unreclaimable 32582 ± 11% +30.8% 42629 ± 7% numa-vmstat.node3.nr_active_anon 32573 ± 11% +28.2% 41746 ± 7% numa-vmstat.node3.nr_anon_pages 0.00 ± 0% +Inf% 107.25 ± 10% numa-vmstat.node3.nr_isolated_anon 722.75 ± 31% +373.0% 3418 ± 18% numa-vmstat.node3.nr_kernel_stack 802.50 ± 3% +56.5% 1255 ± 51% numa-vmstat.node3.nr_mapped 269.25 ± 31% +265.0% 982.75 ± 84% numa-vmstat.node3.nr_shmem 4816 ± 17% +34.6% 6484 ± 8% numa-vmstat.node3.nr_slab_reclaimable 21220 ± 11% +75.8% 37314 ± 12% numa-vmstat.node3.nr_slab_unreclaimable 123852 ± 2% +49.7% 185420 ± 22% numa-meminfo.node0.FilePages 21489 ± 26% +174.9% 59065 ± 17% numa-meminfo.node0.KernelStack 861898 ± 3% +30.0% 1120062 ± 9% numa-meminfo.node0.MemUsed 17776 ± 4% +60.6% 28540 ± 4% numa-meminfo.node0.SReclaimable 96387 ± 13% +52.6% 147124 ± 14% numa-meminfo.node0.SUnreclaim 2622 ±138% +2347.4% 64189 ± 64% numa-meminfo.node0.Shmem 114164 ± 11% +53.9% 175665 ± 12% numa-meminfo.node0.Slab 175655 ± 6% +19.3% 209563 ± 9% numa-meminfo.node1.Active 151199 ± 8% +20.9% 182816 ± 10% numa-meminfo.node1.Active(anon) 12414 ± 2% +263.7% 45153 ± 6% numa-meminfo.node1.KernelStack 84163 ± 3% +49.4% 125761 ± 3% numa-meminfo.node1.SUnreclaim 108941 ± 6% +37.7% 149995 ± 3% numa-meminfo.node1.Slab 25784 ± 5% -6.9% 24004 ± 2% numa-meminfo.node2.Active(file) 11770 ± 54% +272.3% 43819 ± 10% numa-meminfo.node2.KernelStack 22674 ± 9% +21.7% 27592 ± 6% numa-meminfo.node2.SReclaimable 81132 ± 17% +51.8% 123123 ± 11% numa-meminfo.node2.SUnreclaim 103806 ± 14% +45.2% 150716 ± 9% numa-meminfo.node2.Slab 155823 ± 9% +26.8% 197624 ± 6% numa-meminfo.node3.Active 130231 ± 11% +31.2% 170866 ± 7% numa-meminfo.node3.Active(anon) 130132 ± 11% +28.6% 167346 ± 7% numa-meminfo.node3.AnonPages 11486 ± 32% +376.1% 54692 ± 18% numa-meminfo.node3.KernelStack 3220 ± 3% +56.7% 5046 ± 51% numa-meminfo.node3.Mapped 731454 ± 4% +23.8% 905502 ± 8% numa-meminfo.node3.MemUsed 19265 ± 17% +34.6% 25932 ± 8% numa-meminfo.node3.SReclaimable 84857 ± 11% +75.8% 149168 ± 11% numa-meminfo.node3.SUnreclaim 1072 ± 31% +267.3% 3939 ± 84% numa-meminfo.node3.Shmem 104123 ± 11% +68.2% 175101 ± 10% numa-meminfo.node3.Slab 2655 ± 0% +12.3% 2980 ± 1% slabinfo.anon_vma_chain.active_slabs 169938 ± 0% +12.3% 190786 ± 1% slabinfo.anon_vma_chain.num_objs 2655 ± 0% +12.3% 2980 ± 1% slabinfo.anon_vma_chain.num_slabs 57371 ± 2% +51.4% 86867 ± 2% slabinfo.cred_jar.active_objs 1375 ± 2% +59.0% 2187 ± 3% slabinfo.cred_jar.active_slabs 57785 ± 2% +59.0% 91883 ± 3% slabinfo.cred_jar.num_objs 1375 ± 2% +59.0% 2187 ± 3% slabinfo.cred_jar.num_slabs 105760 ± 0% +70.2% 180007 ± 2% slabinfo.dentry.active_objs 2611 ± 0% +65.9% 4334 ± 2% slabinfo.dentry.active_slabs 109710 ± 0% +65.9% 182048 ± 2% slabinfo.dentry.num_objs 2611 ± 0% +65.9% 4334 ± 2% slabinfo.dentry.num_slabs 12542 ± 0% +19.8% 15025 ± 2% slabinfo.files_cache.active_objs 12542 ± 0% +19.8% 15025 ± 2% slabinfo.files_cache.num_objs 12325 ± 0% +13.1% 13944 ± 3% slabinfo.kmalloc-128.active_objs 12368 ± 0% +12.8% 13949 ± 3% slabinfo.kmalloc-128.num_objs 48607 ± 1% +599.8% 340166 ± 7% slabinfo.kmalloc-256.active_objs 1406 ± 0% +296.1% 5569 ± 7% slabinfo.kmalloc-256.active_slabs 90025 ± 0% +295.9% 356448 ± 7% slabinfo.kmalloc-256.num_objs 1406 ± 0% +296.1% 5569 ± 7% slabinfo.kmalloc-256.num_slabs 19374 ± 4% +32.1% 25598 ± 11% slabinfo.kmalloc-512.active_objs 303.50 ± 4% +31.9% 400.25 ± 11% slabinfo.kmalloc-512.active_slabs 19466 ± 4% +31.7% 25645 ± 11% slabinfo.kmalloc-512.num_objs 303.50 ± 4% +31.9% 400.25 ± 11% slabinfo.kmalloc-512.num_slabs 54555 ± 0% +11.0% 60529 ± 1% slabinfo.kmalloc-64.active_objs 852.00 ± 0% +10.9% 945.25 ± 1% slabinfo.kmalloc-64.active_slabs 54569 ± 0% +10.9% 60543 ± 1% slabinfo.kmalloc-64.num_objs 852.00 ± 0% +10.9% 945.25 ± 1% slabinfo.kmalloc-64.num_slabs 8353 ± 2% +16.1% 9697 ± 1% slabinfo.mm_struct.active_objs 8767 ± 2% +12.5% 9867 ± 0% slabinfo.mm_struct.num_objs 18102 ± 1% +321.6% 76312 ± 2% slabinfo.pid.active_objs 282.25 ± 1% +324.1% 1197 ± 2% slabinfo.pid.active_slabs 18102 ± 1% +323.3% 76624 ± 2% slabinfo.pid.num_objs 282.25 ± 1% +324.1% 1197 ± 2% slabinfo.pid.num_slabs 15888 ± 0% +88.2% 29907 ± 5% slabinfo.radix_tree_node.active_objs 283.00 ± 0% +88.5% 533.50 ± 5% slabinfo.radix_tree_node.active_slabs 15888 ± 0% +88.3% 29912 ± 5% slabinfo.radix_tree_node.num_objs 283.00 ± 0% +88.5% 533.50 ± 5% slabinfo.radix_tree_node.num_slabs 37875 ± 1% +18.7% 44946 ± 2% slabinfo.shmem_inode_cache.active_objs 782.75 ± 1% +19.0% 931.25 ± 2% slabinfo.shmem_inode_cache.active_slabs 38374 ± 1% +19.0% 45658 ± 2% slabinfo.shmem_inode_cache.num_objs 782.75 ± 1% +19.0% 931.25 ± 2% slabinfo.shmem_inode_cache.num_slabs 9093 ± 2% +19.5% 10863 ± 0% slabinfo.sighand_cache.active_objs 9517 ± 1% +15.7% 11011 ± 0% slabinfo.sighand_cache.num_objs 15657 ± 4% +22.7% 19216 ± 2% slabinfo.signal_cache.active_objs 532.75 ± 3% +24.5% 663.25 ± 2% slabinfo.signal_cache.active_slabs 15994 ± 3% +24.4% 19903 ± 2% slabinfo.signal_cache.num_objs 532.75 ± 3% +24.5% 663.25 ± 2% slabinfo.signal_cache.num_slabs 4059 ± 0% +220.4% 13004 ± 4% slabinfo.task_struct.active_objs 1416 ± 0% +210.5% 4397 ± 4% slabinfo.task_struct.active_slabs 4249 ± 0% +210.5% 13193 ± 4% slabinfo.task_struct.num_objs 1416 ± 0% +210.5% 4397 ± 4% slabinfo.task_struct.num_slabs 9689 ± 1% -14.4% 8298 ± 0% slabinfo.tw_sock_TCP.active_objs 9689 ± 1% -14.4% 8298 ± 0% slabinfo.tw_sock_TCP.num_objs 118717 ± 0% +8.7% 129087 ± 2% slabinfo.vm_area_struct.active_objs 2834 ± 0% +11.0% 3147 ± 1% slabinfo.vm_area_struct.active_slabs 124715 ± 0% +11.0% 138490 ± 1% slabinfo.vm_area_struct.num_objs 2834 ± 0% +11.0% 3147 ± 1% slabinfo.vm_area_struct.num_slabs 826.91 ±172% +6.4e+05% 5282284 ± 23% sched_debug.cfs_rq:/.MIN_vruntime.avg 119075 ±172% +29123.4% 34797824 ± 5% sched_debug.cfs_rq:/.MIN_vruntime.max 9888 ±172% +1.1e+05% 10423763 ± 12% sched_debug.cfs_rq:/.MIN_vruntime.stddev 3.46 ± 9% +6452.2% 226.68 ± 4% sched_debug.cfs_rq:/.load.avg 76.63 ± 15% +13122.9% 10133 ± 58% sched_debug.cfs_rq:/.load.max 13.44 ± 12% +7589.8% 1033 ± 43% sched_debug.cfs_rq:/.load.stddev 10.02 ± 19% +2131.5% 223.68 ± 4% sched_debug.cfs_rq:/.load_avg.avg 192.42 ± 15% +4769.4% 9369 ± 59% sched_debug.cfs_rq:/.load_avg.max 31.87 ± 17% +2895.1% 954.48 ± 42% sched_debug.cfs_rq:/.load_avg.stddev 826.91 ±172% +6.4e+05% 5282285 ± 23% sched_debug.cfs_rq:/.max_vruntime.avg 119075 ±172% +29123.4% 34797824 ± 5% sched_debug.cfs_rq:/.max_vruntime.max 9888 ±172% +1.1e+05% 10423763 ± 12% sched_debug.cfs_rq:/.max_vruntime.stddev 867397 ± 4% +3259.7% 29141996 ± 5% sched_debug.cfs_rq:/.min_vruntime.avg 1522256 ± 3% +2296.5% 36481296 ± 5% sched_debug.cfs_rq:/.min_vruntime.max 317110 ± 9% +6979.6% 22450187 ± 3% sched_debug.cfs_rq:/.min_vruntime.min 466641 ± 2% +598.1% 3257731 ± 10% sched_debug.cfs_rq:/.min_vruntime.stddev 0.07 ± 12% +926.9% 0.72 ± 4% sched_debug.cfs_rq:/.nr_running.avg 1.00 ± 0% +120.5% 2.20 ± 16% sched_debug.cfs_rq:/.nr_running.max 0.24 ± 5% +148.7% 0.60 ± 8% sched_debug.cfs_rq:/.nr_running.stddev 1.57 ± 4% +12191.7% 193.17 ± 11% sched_debug.cfs_rq:/.runnable_load_avg.avg 44.80 ± 18% +17097.4% 7704 ± 50% sched_debug.cfs_rq:/.runnable_load_avg.max 6.83 ± 10% +11845.7% 816.26 ± 34% sched_debug.cfs_rq:/.runnable_load_avg.stddev -561803 ±-17% +909.6% -5671743 ±-17% sched_debug.cfs_rq:/.spread0.avg 93073 ± 48% +1693.9% 1669627 ± 33% sched_debug.cfs_rq:/.spread0.max -1112123 ± -9% +1011.8% -12365037 ±-14% sched_debug.cfs_rq:/.spread0.min 466665 ± 2% +598.4% 3259347 ± 10% sched_debug.cfs_rq:/.spread0.stddev 72.03 ± 8% +681.0% 562.57 ± 4% sched_debug.cfs_rq:/.util_avg.avg 845.49 ± 7% +19.8% 1012 ± 1% sched_debug.cfs_rq:/.util_avg.max 162.56 ± 7% +141.2% 392.17 ± 2% sched_debug.cfs_rq:/.util_avg.stddev 1041175 ± 4% +74.3% 1814551 ± 41% sched_debug.cpu.avg_idle.max 190602 ± 7% +74.9% 333448 ± 4% sched_debug.cpu.clock.avg 190622 ± 7% +74.9% 333489 ± 4% sched_debug.cpu.clock.max 190578 ± 7% +74.9% 333385 ± 4% sched_debug.cpu.clock.min 12.27 ± 11% +123.7% 27.45 ± 17% sched_debug.cpu.clock.stddev 190602 ± 7% +74.9% 333448 ± 4% sched_debug.cpu.clock_task.avg 190622 ± 7% +74.9% 333489 ± 4% sched_debug.cpu.clock_task.max 190578 ± 7% +74.9% 333385 ± 4% sched_debug.cpu.clock_task.min 12.27 ± 11% +123.7% 27.45 ± 17% sched_debug.cpu.clock_task.stddev 2.48 ± 30% +7940.8% 199.54 ± 8% sched_debug.cpu.cpu_load[0].avg 151.10 ± 73% +5500.9% 8462 ± 53% sched_debug.cpu.cpu_load[0].max 16.01 ± 55% +5396.2% 879.71 ± 37% sched_debug.cpu.cpu_load[0].stddev 2.30 ± 25% +8559.3% 198.83 ± 8% sched_debug.cpu.cpu_load[1].avg 103.62 ± 61% +7965.2% 8357 ± 53% sched_debug.cpu.cpu_load[1].max 12.13 ± 42% +7072.1% 869.95 ± 37% sched_debug.cpu.cpu_load[1].stddev 2.17 ± 20% +8999.8% 197.88 ± 9% sched_debug.cpu.cpu_load[2].avg 79.29 ± 49% +10256.5% 8211 ± 52% sched_debug.cpu.cpu_load[2].max 10.29 ± 32% +8233.9% 857.48 ± 36% sched_debug.cpu.cpu_load[2].stddev 2.09 ± 16% +9348.3% 197.64 ± 9% sched_debug.cpu.cpu_load[3].avg 69.15 ± 34% +11736.4% 8184 ± 52% sched_debug.cpu.cpu_load[3].max 9.19 ± 22% +9151.1% 850.06 ± 36% sched_debug.cpu.cpu_load[3].stddev 2.05 ± 14% +9635.5% 199.62 ± 8% sched_debug.cpu.cpu_load[4].avg 57.27 ± 25% +14613.6% 8427 ± 54% sched_debug.cpu.cpu_load[4].max 8.27 ± 17% +10402.4% 868.48 ± 38% sched_debug.cpu.cpu_load[4].stddev 3419 ± 20% +1048.9% 39291 ± 7% sched_debug.cpu.curr->pid.avg 13248 ± 10% +120.8% 29253 ± 3% sched_debug.cpu.curr->pid.stddev 4.14 ± 23% +5375.2% 226.50 ± 4% sched_debug.cpu.load.avg 166.82 ± 60% +5974.4% 10133 ± 58% sched_debug.cpu.load.max 20.66 ± 42% +4903.2% 1033 ± 43% sched_debug.cpu.load.stddev 519931 ± 4% +88.8% 981576 ± 44% sched_debug.cpu.max_idle_balance_cost.max 1655 ±112% +3127.4% 53420 ± 62% sched_debug.cpu.max_idle_balance_cost.stddev 0.00 ± 6% +257.7% 0.00 ± 14% sched_debug.cpu.next_balance.stddev 57551 ± 8% +292.1% 225655 ± 4% sched_debug.cpu.nr_load_updates.avg 74049 ± 6% +245.3% 255674 ± 4% sched_debug.cpu.nr_load_updates.max 42700 ± 6% +360.8% 196777 ± 2% sched_debug.cpu.nr_load_updates.min 10498 ± 5% +45.5% 15274 ± 7% sched_debug.cpu.nr_load_updates.stddev 0.07 ± 16% +1759.2% 1.37 ± 27% sched_debug.cpu.nr_running.avg 1.28 ± 25% +927.9% 13.19 ± 25% sched_debug.cpu.nr_running.max 0.26 ± 10% +629.1% 1.88 ± 24% sched_debug.cpu.nr_running.stddev 61209 ± 4% -22.7% 47333 ± 4% sched_debug.cpu.nr_switches.avg 33110 ± 3% -55.3% 14805 ± 6% sched_debug.cpu.nr_switches.stddev 9.09 ± 6% +36.1% 12.36 ± 4% sched_debug.cpu.nr_uninterruptible.avg 534.05 ± 7% +189.9% 1548 ± 8% sched_debug.cpu.nr_uninterruptible.max -503.79 ± -4% +246.5% -1745 ± -5% sched_debug.cpu.nr_uninterruptible.min 392.51 ± 9% +124.5% 881.29 ± 4% sched_debug.cpu.nr_uninterruptible.stddev 190581 ± 7% +74.9% 333386 ± 4% sched_debug.cpu_clk 188297 ± 7% +75.8% 331102 ± 4% sched_debug.ktime 0.12 ± 7% -34.3% 0.08 ± 7% sched_debug.rt_rq:/.rt_time.avg 9.29 ± 7% -45.7% 5.04 ± 21% sched_debug.rt_rq:/.rt_time.max 0.93 ± 7% -41.8% 0.54 ± 16% sched_debug.rt_rq:/.rt_time.stddev 190581 ± 7% +74.9% 333386 ± 4% sched_debug.sched_clk reaim.child_systime 14000 ++------------------------------------------------------------------+ | O O O OO O O 12000 ++ | | O | 10000 O+O O O O O | | OO O O OO O O OO O O O OO O O O OO O O O | 8000 ++ | | | 6000 ++ | | | 4000 ++ | | | 2000 ++ | *.*.**.*.*.*.**.*.*.**.*.*.*.**.*.*.*.**.*.*.*.**.*.*.**. .*. .* | 0 ++-----------------------O-------------------------------*-O-*--*---+ reaim.child_utime 1000 O+--OO---O-O---------------------------------------------------------+ 900 ++O O | | | 800 ++ | 700 ++ | | | 600 ++ | 500 ++ | 400 ++ O OO O O O O O O O O OO O O O OO O O O OO O O O OO O O *.*.**.*.*.*.*.**.*.*.*.**.*.*.*.*.**.*.*.*.**.*.*.*.**.*.*.*.*.** | 300 ++ | 200 ++ | | | 100 ++ | 0 ++-----------------------O----------------------------------O--------+ reaim.std_dev_percent 40 ++*---*--*---*-*---*--*-*-*---*---*----*---*---------------------------+ * * * * * * * * ** * *. .*.*. | 35 ++ *.**.* *.*.*.**.* | 30 ++ | | | 25 ++ | | | 20 ++ | | | 15 ++ O | 10 ++ O O O O O O O OO O O O O OO O O O O O O O O O O O O O O OO O O O O | 5 ++O | | | 0 ++------------------------O-----------------------------------O--------+ reaim.jti 100 ++--------------------------------------------------------------------+ 90 O+O O OO O O OO O O OO O O O O O O O O OO O O | | O O O O O O O O OO O O 80 ++ | 70 ++ | *.*.*. *.*.*. .* .*. .*.**.*. .*.*.*.* .*.*.*.*.**.*.*.*.*.**.* | 60 ++ * *.* * *.* * * | 50 ++ | 40 ++ | | | 30 ++ | 20 ++ | | | 10 ++ | 0 ++------------------------O----------------------------------O--------+ reaim.time.user_time 4000 O+--OO---O-O---------------------------------------------------------+ | O O | 3500 ++ | 3000 ++ | | | 2500 ++ | | | 2000 ++ | | O OO O O O O O O O O OO O O O OO O O O OO O O O OO O O 1500 *+*.**.*.*.*.*.**.*.*.*.**.*.*.*.*.**.*.*.*.**.*.*.*.**.*.*.*.*.** | 1000 ++ | | | 500 ++ | | | 0 ++-----------------------O----------------------------------O--------+ reaim.time.system_time 60000 ++------------------------------------------------------------------+ | | 50000 ++ O O O OO O O | | O O O | 40000 ++O O O O O O O O O O | | O O O O O OO O O O O O O O O O O | 30000 ++ | | | 20000 ++ | | | | | 10000 ++ | *.*.**.*.*.*.**.*.*.**.*.*.*.**.*.*.*.**.*.*.*.**.*.*.* | 0 ++-----------------------O-----------------------------*-*-O-*-**---+ reaim.time.percent_of_cpu_this_job_got 10000 ++--O----O-O--------------------------------------------------------+ 9000 O+O O O O O O O O O | O | 8000 ++ O O O | 7000 ++ O O O OO O O OO O O OO O O OO O O O | | | 6000 ++ | 5000 ++ | 4000 ++ | | | 3000 ++ | 2000 ++ | *.*.**.*.*.*.**.*.*.**.*.*.*.**.*.*.*.**.*.*. .*.**.*.*.*.** | 1000 ++ *.**.* | 0 ++-----------------------O---------------------------------O--------+ reaim.time.involuntary_context_switches 1.6e+06 ++----------------------------------------------------------------+ | O O O O OO O 1.4e+06 O+OO O O O OO O O O OO O O O O OO O O OO O | | OO O O O O | 1.2e+06 ++ .*. .**.*.*. *. .*.**. *. .*. *.*.*.* | 1e+06 *+** * * * *.*.* *.**.* * *.*.*.**.*.*.* | | | 800000 ++ | | | 600000 ++ | 400000 ++ | | | 200000 ++ | | | 0 ++----------------------O--------------------------------O--------+ [*] bisect-good sample [O] bisect-bad sample To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Xiaolong

6 years, 2 months

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[lkp] [sched/fair] 53d3bc773e: hackbench.throughput -32.9% regression

by kernel test robot

FYI, we noticed hackbench.throughput -32.9% regression due to commit: commit 53d3bc773eaa7ab1cf63585e76af7ee869d5e709 ("Revert "sched/fair: Fix fairness issue on migration"") https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master in testcase: hackbench on test machine: ivb42: 48 threads Ivytown Ivy Bridge-EP with 64G memory with following parameters: cpufreq_governor=performance/ipc=socket/mode=threads/nr_threads=50% In addition to that, the commit also has significant impact on the following tests: unixbench: unixbench.score 25.9% improvement on test machine - ivb42: 48 threads Ivytown Ivy Bridge-EP with 64G memory with test parameters: cpufreq_governor=performance/nr_task=100%/test=context1 hackbench: hackbench.throughput -15.6% regression on test machine - lkp-hsw-ep4: 72 threads Haswell-EP with 128G memory with test parameters: cpufreq_governor=performance/ipc=pipe/iterations=12/mode=process/nr_threads=50% Details are as below: --------------------------------------------------------------------------------------------------> ========================================================================================= compiler/cpufreq_governor/ipc/kconfig/mode/nr_threads/rootfs/tbox_group/testcase: gcc-4.9/performance/socket/x86_64-rhel/threads/50%/debian-x86_64-2015-02-07.cgz/ivb42/hackbench commit: c5114626f33b62fa7595e57d87f33d9d1f8298a2 53d3bc773eaa7ab1cf63585e76af7ee869d5e709 c5114626f33b62fa 53d3bc773eaa7ab1cf63585e76 ---------------- -------------------------- %stddev %change %stddev \ | \ 196590 ± 0% -32.9% 131963 ± 2% hackbench.throughput 602.66 ± 0% +2.8% 619.27 ± 2% hackbench.time.elapsed_time 602.66 ± 0% +2.8% 619.27 ± 2% hackbench.time.elapsed_time.max 1.76e+08 ± 3% +236.0% 5.914e+08 ± 2% hackbench.time.involuntary_context_switches 208664 ± 2% +26.0% 262929 ± 3% hackbench.time.minor_page_faults 4401 ± 0% +5.7% 4650 ± 0% hackbench.time.percent_of_cpu_this_job_got 25256 ± 0% +10.2% 27842 ± 2% hackbench.time.system_time 1272 ± 0% -24.5% 961.37 ± 2% hackbench.time.user_time 7.64e+08 ± 1% +131.8% 1.771e+09 ± 2% hackbench.time.voluntary_context_switches 143370 ± 0% -12.0% 126124 ± 1% meminfo.SUnreclaim 2462880 ± 0% -35.6% 1585869 ± 5% softirqs.SCHED 4051 ± 0% -39.9% 2434 ± 3% uptime.idle 1766752 ± 1% +122.6% 3932589 ± 1% vmstat.system.cs 249718 ± 2% +307.4% 1017398 ± 3% vmstat.system.in 1.76e+08 ± 3% +236.0% 5.914e+08 ± 2% time.involuntary_context_switches 208664 ± 2% +26.0% 262929 ± 3% time.minor_page_faults 1272 ± 0% -24.5% 961.37 ± 2% time.user_time 7.64e+08 ± 1% +131.8% 1.771e+09 ± 2% time.voluntary_context_switches 2228 ± 92% +137.1% 5285 ± 15% numa-meminfo.node0.AnonHugePages 73589 ± 4% -12.5% 64393 ± 2% numa-meminfo.node0.SUnreclaim 27438 ± 83% +102.6% 55585 ± 6% numa-meminfo.node0.Shmem 101051 ± 3% -10.9% 90044 ± 2% numa-meminfo.node0.Slab 69844 ± 4% -11.8% 61579 ± 3% numa-meminfo.node1.SUnreclaim 1136461 ± 3% +16.6% 1324662 ± 5% numa-numastat.node0.local_node 1140216 ± 3% +16.2% 1324689 ± 5% numa-numastat.node0.numa_hit 3755 ± 68% -99.3% 27.25 ± 94% numa-numastat.node0.other_node 1098889 ± 4% +20.1% 1320211 ± 6% numa-numastat.node1.local_node 1101996 ± 4% +20.5% 1327590 ± 6% numa-numastat.node1.numa_hit 7.18 ± 0% -50.2% 3.57 ± 43% perf-profile.cycles-pp.call_cpuidle 8.09 ± 0% -44.7% 4.47 ± 38% perf-profile.cycles-pp.cpu_startup_entry 7.17 ± 0% -50.3% 3.56 ± 43% perf-profile.cycles-pp.cpuidle_enter 7.14 ± 0% -50.3% 3.55 ± 43% perf-profile.cycles-pp.cpuidle_enter_state 7.11 ± 0% -50.6% 3.52 ± 43% perf-profile.cycles-pp.intel_idle 8.00 ± 0% -44.5% 4.44 ± 38% perf-profile.cycles-pp.start_secondary 92.32 ± 0% +5.4% 97.32 ± 0% turbostat.%Busy 2763 ± 0% +5.4% 2912 ± 0% turbostat.Avg_MHz 7.48 ± 0% -66.5% 2.50 ± 7% turbostat.CPU%c1 0.20 ± 2% -6.4% 0.18 ± 2% turbostat.CPU%c6 180.03 ± 0% -1.3% 177.62 ± 0% turbostat.CorWatt 5.83 ± 0% +38.9% 8.10 ± 3% turbostat.RAMWatt 6857 ± 83% +102.8% 13905 ± 6% numa-vmstat.node0.nr_shmem 18395 ± 4% -12.4% 16121 ± 2% numa-vmstat.node0.nr_slab_unreclaimable 675569 ± 3% +12.7% 761135 ± 4% numa-vmstat.node0.numa_local 71537 ± 5% -7.9% 65920 ± 2% numa-vmstat.node0.numa_other 17456 ± 4% -11.7% 15405 ± 3% numa-vmstat.node1.nr_slab_unreclaimable 695848 ± 3% +14.9% 799683 ± 5% numa-vmstat.node1.numa_hit 677405 ± 4% +14.5% 775903 ± 6% numa-vmstat.node1.numa_local 18442 ± 19% +28.9% 23779 ± 5% numa-vmstat.node1.numa_other 1.658e+09 ± 0% -59.1% 6.784e+08 ± 7% cpuidle.C1-IVT.time 1.066e+08 ± 0% -40.3% 63661563 ± 6% cpuidle.C1-IVT.usage 26348635 ± 0% -86.8% 3471048 ± 15% cpuidle.C1E-IVT.time 291620 ± 0% -85.1% 43352 ± 15% cpuidle.C1E-IVT.usage 54158643 ± 1% -88.5% 6254009 ± 14% cpuidle.C3-IVT.time 482437 ± 1% -87.0% 62620 ± 16% cpuidle.C3-IVT.usage 5.028e+08 ± 0% -75.8% 1.219e+08 ± 8% cpuidle.C6-IVT.time 3805026 ± 0% -85.5% 552326 ± 16% cpuidle.C6-IVT.usage 2766 ± 4% -51.4% 1344 ± 6% cpuidle.POLL.usage 35841 ± 0% -12.0% 31543 ± 0% proc-vmstat.nr_slab_unreclaimable 154090 ± 2% +43.1% 220509 ± 3% proc-vmstat.numa_hint_faults 129240 ± 2% +47.4% 190543 ± 3% proc-vmstat.numa_hint_faults_local 2238386 ± 1% +18.4% 2649737 ± 2% proc-vmstat.numa_hit 2232163 ± 1% +18.4% 2643105 ± 2% proc-vmstat.numa_local 22315 ± 1% -21.0% 17625 ± 5% proc-vmstat.numa_pages_migrated 154533 ± 2% +45.6% 225071 ± 3% proc-vmstat.numa_pte_updates 382980 ± 2% +33.2% 510157 ± 4% proc-vmstat.pgalloc_dma32 7311738 ± 2% +37.2% 10029060 ± 2% proc-vmstat.pgalloc_normal 7672040 ± 2% +37.1% 10519738 ± 2% proc-vmstat.pgfree 22315 ± 1% -21.0% 17625 ± 5% proc-vmstat.pgmigrate_success 5487 ± 6% -12.6% 4797 ± 4% slabinfo.UNIX.active_objs 5609 ± 5% -12.2% 4926 ± 4% slabinfo.UNIX.num_objs 4362 ± 4% +14.6% 4998 ± 2% slabinfo.cred_jar.active_objs 4362 ± 4% +14.6% 4998 ± 2% slabinfo.cred_jar.num_objs 42525 ± 0% -41.6% 24824 ± 3% slabinfo.kmalloc-256.active_objs 845.50 ± 0% -42.9% 482.50 ± 3% slabinfo.kmalloc-256.active_slabs 54124 ± 0% -42.9% 30920 ± 3% slabinfo.kmalloc-256.num_objs 845.50 ± 0% -42.9% 482.50 ± 3% slabinfo.kmalloc-256.num_slabs 47204 ± 0% -37.9% 29335 ± 2% slabinfo.kmalloc-512.active_objs 915.25 ± 0% -39.8% 551.00 ± 3% slabinfo.kmalloc-512.active_slabs 58599 ± 0% -39.8% 35300 ± 3% slabinfo.kmalloc-512.num_objs 915.25 ± 0% -39.8% 551.00 ± 3% slabinfo.kmalloc-512.num_slabs 12443 ± 2% -20.1% 9944 ± 3% slabinfo.pid.active_objs 12443 ± 2% -20.1% 9944 ± 3% slabinfo.pid.num_objs 440.00 ± 5% -32.8% 295.75 ± 4% slabinfo.taskstats.active_objs 440.00 ± 5% -32.8% 295.75 ± 4% slabinfo.taskstats.num_objs 312.45 ±157% -94.8% 16.29 ± 33% sched_debug.cfs_rq:/.load.stddev 0.27 ± 5% -56.3% 0.12 ± 30% sched_debug.cfs_rq:/.nr_running.stddev 16.51 ± 1% +9.5% 18.08 ± 3% sched_debug.cfs_rq:/.runnable_load_avg.avg 0.05 ±100% +7950.0% 3.66 ± 48% sched_debug.cfs_rq:/.runnable_load_avg.min -740916 ±-28% -158.5% 433310 ±120% sched_debug.cfs_rq:/.spread0.avg 1009940 ± 19% +75.8% 1775442 ± 30% sched_debug.cfs_rq:/.spread0.max -2384171 ± -7% -65.7% -818684 ±-76% sched_debug.cfs_rq:/.spread0.min 749.14 ± 1% +13.0% 846.34 ± 1% sched_debug.cfs_rq:/.util_avg.min 51.66 ± 4% -36.3% 32.92 ± 5% sched_debug.cfs_rq:/.util_avg.stddev 161202 ± 7% -41.7% 93997 ± 4% sched_debug.cpu.avg_idle.avg 595158 ± 6% -51.2% 290491 ± 22% sched_debug.cpu.avg_idle.max 132760 ± 8% -58.8% 54718 ± 19% sched_debug.cpu.avg_idle.stddev 11.40 ± 11% +111.0% 24.05 ± 16% sched_debug.cpu.clock.stddev 11.40 ± 11% +111.0% 24.05 ± 16% sched_debug.cpu.clock_task.stddev 32.34 ± 2% +23.9% 40.07 ± 19% sched_debug.cpu.cpu_load[0].max 0.34 ±103% +520.0% 2.11 ± 67% sched_debug.cpu.cpu_load[0].min 32.18 ± 2% +22.7% 39.50 ± 17% sched_debug.cpu.cpu_load[1].max 3.32 ± 8% +84.9% 6.14 ± 12% sched_debug.cpu.cpu_load[1].min 5.39 ± 7% +36.3% 7.34 ± 4% sched_debug.cpu.cpu_load[2].min 33.18 ± 3% +14.0% 37.82 ± 5% sched_debug.cpu.cpu_load[4].max 5.56 ± 6% +16.2% 6.45 ± 6% sched_debug.cpu.cpu_load[4].stddev 16741 ± 0% -15.4% 14166 ± 2% sched_debug.cpu.curr->pid.avg 19196 ± 0% -18.3% 15690 ± 1% sched_debug.cpu.curr->pid.max 5174 ± 5% -55.4% 2305 ± 14% sched_debug.cpu.curr->pid.stddev 1410 ± 1% -14.2% 1210 ± 6% sched_debug.cpu.nr_load_updates.stddev 9.95 ± 3% -14.5% 8.51 ± 5% sched_debug.cpu.nr_running.avg 29.07 ± 2% -15.0% 24.70 ± 4% sched_debug.cpu.nr_running.max 0.05 ±100% +850.0% 0.43 ± 37% sched_debug.cpu.nr_running.min 7.64 ± 3% -23.0% 5.88 ± 2% sched_debug.cpu.nr_running.stddev 10979930 ± 1% +123.3% 24518490 ± 2% sched_debug.cpu.nr_switches.avg 12350130 ± 1% +117.5% 26856375 ± 2% sched_debug.cpu.nr_switches.max 9594835 ± 2% +132.6% 22314436 ± 2% sched_debug.cpu.nr_switches.min 769296 ± 1% +56.8% 1206190 ± 3% sched_debug.cpu.nr_switches.stddev 8.30 ± 18% +32.9% 11.02 ± 15% sched_debug.cpu.nr_uninterruptible.max turbostat.Avg_MHz 3000 O+---O-O-O--O-O-O-O--O-O-O--O-O-O--O-O-O-O--O------------------------+ *.O..*.*.* *.*.*..*.*.*..*.*.*..*.*.*.*..*.*.*..*.*.*..*.*.*.*..*.* 2500 ++ : : | | : : | | : : | 2000 ++ : : | | : : | 1500 ++ : : | | : : | 1000 ++ : : | | : : | | :: | 500 ++ : | | : | 0 ++----------*--------------------------------------------------------+ turbostat._Busy 100 O+O--O-O-O--O-O-O--O-O-O--O-O-O--O-O-O--O-O-O-------------------------+ 90 *+*..*.*.* *.*..*.*.*..*.*.*..*.*.*..*.*.*..*.*.*..*.*.*..*.*.*..*.* | : : | 80 ++ : : | 70 ++ : : | | : : | 60 ++ : : | 50 ++ : : | 40 ++ : : | | : : | 30 ++ : : | 20 ++ :: | | : | 10 ++ : | 0 ++----------*---------------------------------------------------------+ turbostat.CPU_c1 8 ++---------------*------------------------------------------------------+ *.*..*.*..* *. *..*.*.*..*.*..*.*.*..*.*..*.*.*..*.*..*.*.*..*.*..*.* 7 ++ : : | 6 ++ : : | | : : | 5 ++ : : | | : : | 4 ++ : : | | O : : | 3 O+ O O: : O O | 2 ++ O :O:O O O O O O O O O O O | | : O | 1 ++ : | | : | 0 ++----------*-----------------------------------------------------------+ turbostat.PkgWatt 250 ++--------------------------------------------------------------------+ | | O.O..O.O.O O O.O..O.O.O..O.O.O..O.O.O..O.O.O..*.*.*..*.*.*..*.*.*..*.* 200 ++ : : | | : : | | : : | 150 ++ : : | | : : | 100 ++ : : | | : : | | : : | 50 ++ : : | | : | | : | 0 ++----------*---------------------------------------------------------+ turbostat.CorWatt 200 ++--------------------------------------------------------------------+ 180 *+*..*.*.* *.*..*.*.*..*.*.*..*.*.*..*.*.*..*.*.*..*.*.*..*.*.*..*.* O O O O O O O O O O O O O O O O O O O O | 160 ++ : : | 140 ++ : : | | : : | 120 ++ : : | 100 ++ : : | 80 ++ : : | | : : | 60 ++ : : | 40 ++ :: | | : | 20 ++ : | 0 ++----------*---------------------------------------------------------+ turbostat.RAMWatt 9 ++---------------O------------------------------------------------------+ | O O O O O O O O O O O | 8 ++O O O O O O O | 7 O+ | | | 6 *+*..*.*..* *..*.*..*.*.*..*.*..*.*.*..*.*..*.*.*..*.*..*.*.*..*.*..*.* 5 ++ : : | | : : | 4 ++ : : | 3 ++ : : | | : : | 2 ++ : : | 1 ++ : | | : | 0 ++----------*-----------------------------------------------------------+ hackbench.throughput 200000 *+*-*--*-*---*--*-*-*-*--*-*-*-*--*-*-*-*-*--*-*-*-*--*-*-*-*--*-*-* 180000 ++ : : | | : : | 160000 ++ : : | 140000 O+O : : O O | | O O O:O:O O O O O O O O O O O O | 120000 ++ : : | 100000 ++ : : | 80000 ++ : : | | : : | 60000 ++ : : | 40000 ++ : | | : | 20000 ++ : | 0 ++---------*-------------------------------------------------------+ time.user_time 1400 ++------------*------------------------------------------------------+ *.*..*.*.* : *.*..*.*.*..*.*.*..*.*.*.*..*.*.*..*.*.*..*.*.*.*..*.* 1200 ++ : : | | : : | 1000 O+O O: O:O O O O O O O O O O | | O O : : O O O O | 800 ++ : : | | : : | 600 ++ : : | | : : | 400 ++ : : | | :: | 200 ++ : | | : | 0 ++----------*--------------------------------------------------------+ time.minor_page_faults 300000 ++-----------------------------------------------------------------+ | O O O O O O O O O | 250000 O+O O O O O O O O O O | | | *.*.*..*.* *..*.*.*.*..*.*.*.*..*.*.*.*.*..*. .*.*..*.*. .*..*.*.* 200000 ++ : : * * | | : : | 150000 ++ : : | | : : | 100000 ++ : : | | : : | | : : | 50000 ++ : | | : | 0 ++---------*-------------------------------------------------------+ time.voluntary_context_switches 2e+09 ++----------------------------------------------------------------+ 1.8e+09 ++ O O O O O O | | O O O O O O O O O O O O | 1.6e+09 O+O | 1.4e+09 ++ | | | 1.2e+09 ++ | 1e+09 ++ | 8e+08 ++ .* *.*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.* | 6e+08 ++ : : | 4e+08 ++ : : | | : : | 2e+08 ++ : | 0 ++---------*------------------------------------------------------+ time.involuntary_context_switches 7e+08 ++------------------------------------------------------------------+ | O O O | 6e+08 ++ O O O O O O O O O O O | O O O O O O | 5e+08 ++ | | | 4e+08 ++ | | | 3e+08 ++ | | | 2e+08 ++ .*.. .*.*. .*.*.*. .* *.*..*.*.* *.*.* *.*.*.*..*.*.*..*.*.*.*. *.*. *..* | 1e+08 ++ : + | | : + | 0 ++---------*--------------------------------------------------------+ hackbench.time.user_time 1400 ++------------*------------------------------------------------------+ *.*..*.*.* : *.*..*.*.*..*.*.*..*.*.*.*..*.*.*..*.*.*..*.*.*.*..*.* 1200 ++ : : | | : : | 1000 O+O O: O:O O O O O O O O O O | | O O : : O O O O | 800 ++ : : | | : : | 600 ++ : : | | : : | 400 ++ : : | | :: | 200 ++ : | | : | 0 ++----------*--------------------------------------------------------+ hackbench.time.percent_of_cpu_this_job_got 5000 ++-------------------------------------------------------------------+ 4500 O+O O O O O O O O O O O O O O O O O O O | *.*..*.*.* *.*.*..*.*.*..*.*.*..*.*.*.*..*.*.*..*.*.*..*.*.*.*..*.* 4000 ++ : : | 3500 ++ : : | | : : | 3000 ++ : : | 2500 ++ : : | 2000 ++ : : | | : : | 1500 ++ : : | 1000 ++ : : | | : | 500 ++ : | 0 ++----------*--------------------------------------------------------+ hackbench.time.minor_page_faults 300000 ++-----------------------------------------------------------------+ | O O O O O O O O O | 250000 O+O O O O O O O O O O | | | *.*.*..*.* *..*.*.*.*..*.*.*.*..*.*.*.*.*..*. .*.*..*.*. .*..*.*.* 200000 ++ : : * * | | : : | 150000 ++ : : | | : : | 100000 ++ : : | | : : | | : : | 50000 ++ : | | : | 0 ++---------*-------------------------------------------------------+ hackbench.time.voluntary_context_switches 2e+09 ++----------------------------------------------------------------+ 1.8e+09 ++ O O O O O O | | O O O O O O O O O O O O | 1.6e+09 O+O | 1.4e+09 ++ | | | 1.2e+09 ++ | 1e+09 ++ | 8e+08 ++ .* *.*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.* | 6e+08 ++ : : | 4e+08 ++ : : | | : : | 2e+08 ++ : | 0 ++---------*------------------------------------------------------+ hackbench.time.involuntary_context_switches 7e+08 ++------------------------------------------------------------------+ | O O O | 6e+08 ++ O O O O O O O O O O O | O O O O O O | 5e+08 ++ | | | 4e+08 ++ | | | 3e+08 ++ | | | 2e+08 ++ .*.. .*.*. .*.*.*. .* *.*..*.*.* *.*.* *.*.*.*..*.*.*..*.*.*.*. *.*. *..* | 1e+08 ++ : + | | : + | 0 ++---------*--------------------------------------------------------+ softirqs.SCHED 3e+06 ++----------------------------------------------------------------+ | | 2.5e+06 *+*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*.. .*. .*. | | : : *.* *.*. *.* | : : | 2e+06 ++ : : | O O O: : O O O O | 1.5e+06 ++ O O :O:O O O O O O O O O O | | : : | 1e+06 ++ : : | | : : | | :: | 500000 ++ : | | : | 0 ++---------*------------------------------------------------------+ uptime.idle 4500 ++-------------------------------------------------------------------+ *.*..*.*.* .*.*..*.*.*..*.*.*..*.*.*.*..*.*.*..*. .*. .*.*..*.* 4000 ++ : * *.*. * | 3500 ++ : : | | : : | 3000 ++ : : | 2500 O+O O: O: O O O O O O O | | O : :O O O O O O O | 2000 ++ O : : | 1500 ++ : : | | : : | 1000 ++ : : | 500 ++ : | | : | 0 ++----------*--------------------------------------------------------+ cpuidle.POLL.usage 3500 ++-------------------------------------------------------------------+ | | 3000 ++ .*. *. .*.. .*. .*.. .*. .*.. .* *.*..* * : * * *..*.* *.*.*.*. * *.*.*..*.*.*.*..* | 2500 ++ : : | | : : | 2000 ++ : : | O O : : | 1500 ++ O: : O O | | O :O:O O O O O O O O O O | 1000 ++ O : : O O | | : : | 500 ++ :: | | : | 0 ++----------*--------------------------------------------------------+ cpuidle.C1-IVT.time 1.8e+09 *+*-*--*-*---*-*--*---*-*-*--*-*-*-*-*--*-*-*---*-----------------+ | : : * * *.*.*.*.*..*.*.* 1.6e+09 ++ : : | 1.4e+09 ++ : : | | : : | 1.2e+09 ++ : : | 1e+09 ++ : : | | : : | 8e+08 O+O O: : O O O O | 6e+08 ++ O O :O:O O O O O O O O | | : : O O | 4e+08 ++ : | 2e+08 ++ : | | : | 0 ++---------*------------------------------------------------------+ cpuidle.C1-IVT.usage 1.2e+08 ++----------------------------------------------------------------+ *.*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*.. .*. | 1e+08 ++ : : *.* *.*..*.*.* | : : | | : : | 8e+07 O+O : : | | O: : O O O O | 6e+07 ++ O O :O:O O O O O O O O | | : : O O | 4e+07 ++ : : | | : : | | : | 2e+07 ++ : | | : | 0 ++---------*------------------------------------------------------+ cpuidle.C1E-IVT.time 3e+07 ++----------------------------------------------------------------+ *.*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*.. .*.*.*. | 2.5e+07 ++ : : * *..*.*.* | : : | | : : | 2e+07 ++ : : | | : : | 1.5e+07 ++ : : | | : : | 1e+07 ++ : : | | : : | O : | 5e+06 ++O O O O O O O O O | | O : O O O O O O O O O | 0 ++---------*------------------------------------------------------+ cpuidle.C1E-IVT.usage 350000 ++-----------------------------------------------------------------+ | .*.*. | 300000 *+*.*..*.* *. *.*..*.*.*.*..*.*.*.*.*..*.*.*.*..*.*.*.*..*.*.* | : : | 250000 ++ : : | | : : | 200000 ++ : : | | : : | 150000 ++ : : | | : : | 100000 ++ : : | | O :: | 50000 O+ O O O O O O O O O O | | O : O O O O O O O | 0 ++---------*-------------------------------------------------------+ cpuidle.C3-IVT.time 6e+07 *+*--*-*-*------*--------*-*-*--*-*-*--*-*-*-*----*-----------------+ | : * *.*..* * *.*..*.*.*.*..*.| 5e+07 ++ : : * | : : | | : : | 4e+07 ++ : : | | : : | 3e+07 ++ : : | | : : | 2e+07 ++ : : | | : : | | :: | 1e+07 O+O O O : O O O O | | O O O O O O O O O O O O | 0 ++---------*--------------------------------------------------------+ cpuidle.C3-IVT.usage 600000 ++-----------------------------------------------------------------+ | | 500000 *+*.*..*.* *..*.*.*.*..*.*.*.*..*.*.*.*.*..*.*.*. .*. | | : : *..* *.*..*.*.* | : : | 400000 ++ : : | | : : | 300000 ++ : : | | : : | 200000 ++ : : | | : : | | :: | 100000 O+O O O : O O O O O | | O O O O O O O O O O O | 0 ++---------*-------------------------------------------------------+ cpuidle.C6-IVT.time 6e+08 ++------------------------------------------------------------------+ |.*..*.*.* .*.*..*.*. .*.*.*.*.. | 5e+08 *+ : *.*.*.*..*.* *. *.*.*.*..*.*.*.*..*.* | : : | | : : | 4e+08 ++ : : | | : : | 3e+08 ++ : : | | : : | 2e+08 ++ : : | | O : : | O O O O O: O O O O O O O O O O O | 1e+08 ++ :: O O O | | : | 0 ++---------*--------------------------------------------------------+ cpuidle.C6-IVT.usage 4.5e+06 ++----------------------------------------------------------------+ *.*.*..*.* .*..*. .*.*.*..*.*.*.*.*..*.*.*.*. .*. | 4e+06 ++ : * * *..*.* *.*..*.*.* 3.5e+06 ++ : : | | : : | 3e+06 ++ : : | 2.5e+06 ++ : : | | : : | 2e+06 ++ : : | 1.5e+06 ++ : : | | : : | 1e+06 ++O :: | 500000 O+ O O O O O O O O O | | O : O O O O O O O O | 0 ++---------*------------------------------------------------------+ meminfo.Slab 200000 *+*-*--*-*---*--*-*-*-*--*-*-*-*--*-*-*-*-*--*-*-*-*--*-*-*-*--*-*-* 180000 ++O O : O O | O O O : O O O O O O O O O O O O O | 160000 ++ : : | 140000 ++ : : | | : : | 120000 ++ : : | 100000 ++ : : | 80000 ++ : : | | : : | 60000 ++ : : | 40000 ++ : | | : | 20000 ++ : | 0 ++---------*-------------------------------------------------------+ meminfo.SUnreclaim 160000 ++-----------------------------------------------------------------+ *. .*..*.* *..*.*. .*. .*.*..*.*. .*.*..*. .*. .*.*.*.*..*. .* 140000 ++* : : *.*. * * * *. * | 120000 O+O O O O O O O O O O O O O O O O O O O | | : : | 100000 ++ : : | | : : | 80000 ++ : : | | : : | 60000 ++ : : | 40000 ++ : : | | : | 20000 ++ : | | : | 0 ++---------*-------------------------------------------------------+ vmstat.system.in 1.2e+06 ++----------------------------------------------------------------+ | O O O | 1e+06 ++ O O O O O O O O O O O O | | O O O | O O | 800000 ++ | | | 600000 ++ | | | 400000 ++ | | | *.*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.*.* 200000 ++ : : | | : : | 0 ++---------*------------------------------------------------------+ vmstat.system.cs 4.5e+06 ++----------------------------------------------------------------+ | O O O O | 4e+06 O+ O O O O O O O O O O O O O O | 3.5e+06 ++O | | | 3e+06 ++ | 2.5e+06 ++ | | | 2e+06 ++ .*. .* 1.5e+06 *+*.*..*.* *.*..*.*.*.*.*..*.*.*.*.*..*.*.*.*.*..*.*.* *..*.* | | : : | 1e+06 ++ : : | 500000 ++ : : | | : | 0 ++---------*------------------------------------------------------+ [*] bisect-good sample [O] bisect-bad sample To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml *************************************************************************************************** ivb42: 48 threads Ivytown Ivy Bridge-EP with 64G memory ========================================================================================= compiler/cpufreq_governor/kconfig/nr_task/rootfs/tbox_group/test/testcase: gcc-4.9/performance/x86_64-rhel/100%/debian-x86_64-2015-02-07.cgz/ivb42/context1/unixbench commit: c5114626f33b62fa7595e57d87f33d9d1f8298a2 53d3bc773eaa7ab1cf63585e76af7ee869d5e709 c5114626f33b62fa 53d3bc773eaa7ab1cf63585e76 ---------------- -------------------------- %stddev %change %stddev \ | \ 18006 ± 1% +25.9% 22672 ± 0% unixbench.score 39774 ± 33% +5.4e+05% 2.138e+08 ± 4% unixbench.time.involuntary_context_switches 1717 ± 0% +1.9% 1749 ± 0% unixbench.time.percent_of_cpu_this_job_got 152.51 ± 0% +33.9% 204.18 ± 1% unixbench.time.user_time 7.052e+08 ± 1% -3.9% 6.78e+08 ± 1% unixbench.time.voluntary_context_switches 4.243e+08 ± 3% -9.4% 3.845e+08 ± 7% cpuidle.C1-IVT.time 1.544e+08 ± 6% -37.5% 96475672 ± 5% cpuidle.C1-IVT.usage 409626 ± 4% +28.6% 526843 ± 15% softirqs.RCU 274815 ± 4% -27.5% 199184 ± 9% softirqs.SCHED 39774 ± 33% +5.4e+05% 2.138e+08 ± 4% time.involuntary_context_switches 152.51 ± 0% +33.9% 204.18 ± 1% time.user_time 45.25 ± 0% +12.7% 51.00 ± 0% vmstat.procs.r 11774346 ± 0% +20.2% 14152328 ± 0% vmstat.system.cs 1848728 ± 0% +22.7% 2269123 ± 0% sched_debug.cfs_rq:/.min_vruntime.avg 2029277 ± 0% +18.7% 2409509 ± 0% sched_debug.cfs_rq:/.min_vruntime.max 1561074 ± 5% +29.9% 2027122 ± 3% sched_debug.cfs_rq:/.min_vruntime.min 103209 ± 9% -17.8% 84792 ± 10% sched_debug.cfs_rq:/.min_vruntime.stddev 11.68 ± 6% -35.9% 7.49 ± 6% sched_debug.cfs_rq:/.runnable_load_avg.avg 103208 ± 9% -17.8% 84795 ± 10% sched_debug.cfs_rq:/.spread0.stddev 946393 ± 5% -24.5% 714499 ± 10% sched_debug.cpu.avg_idle.max 234059 ± 6% -36.5% 148728 ± 37% sched_debug.cpu.avg_idle.stddev 11.57 ± 6% -31.2% 7.96 ± 20% sched_debug.cpu.cpu_load[1].avg 11.61 ± 7% -34.4% 7.61 ± 12% sched_debug.cpu.cpu_load[2].avg 11.70 ± 7% -35.4% 7.56 ± 8% sched_debug.cpu.cpu_load[3].avg 11.86 ± 7% -36.1% 7.58 ± 6% sched_debug.cpu.cpu_load[4].avg 0.48 ± 6% +13.9% 0.54 ± 3% sched_debug.cpu.nr_running.avg 0.37 ± 5% +10.5% 0.41 ± 4% sched_debug.cpu.nr_running.stddev 14556348 ± 0% +20.1% 17474921 ± 0% sched_debug.cpu.nr_switches.avg 14764042 ± 0% +24.5% 18380752 ± 0% sched_debug.cpu.nr_switches.max 14296508 ± 0% +14.9% 16430231 ± 0% sched_debug.cpu.nr_switches.min 121577 ± 25% +268.4% 447878 ± 8% sched_debug.cpu.nr_switches.stddev -9.42 ± -3% +20.4% -11.33 ±-12% sched_debug.cpu.nr_uninterruptible.min *************************************************************************************************** lkp-hsw-ep4: 72 threads Haswell-EP with 128G memory ========================================================================================= compiler/cpufreq_governor/ipc/iterations/kconfig/mode/nr_threads/rootfs/tbox_group/testcase: gcc-4.9/performance/pipe/12/x86_64-rhel/process/50%/debian-x86_64-2015-02-07.cgz/lkp-hsw-ep4/hackbench commit: c5114626f33b62fa7595e57d87f33d9d1f8298a2 53d3bc773eaa7ab1cf63585e76af7ee869d5e709 c5114626f33b62fa 53d3bc773eaa7ab1cf63585e76 ---------------- -------------------------- %stddev %change %stddev \ | \ 207412 ± 0% -15.6% 175076 ± 1% hackbench.throughput 489.41 ± 0% +18.4% 579.66 ± 1% hackbench.time.elapsed_time 489.41 ± 0% +18.4% 579.66 ± 1% hackbench.time.elapsed_time.max 1.005e+09 ± 0% +113.2% 2.142e+09 ± 4% hackbench.time.involuntary_context_switches 6966 ± 0% +2.2% 7118 ± 0% hackbench.time.percent_of_cpu_this_job_got 32394 ± 0% +19.3% 38635 ± 1% hackbench.time.system_time 1700 ± 0% +54.6% 2627 ± 3% hackbench.time.user_time 3.164e+09 ± 0% +64.2% 5.195e+09 ± 3% hackbench.time.voluntary_context_switches 536.44 ± 0% +17.1% 627.97 ± 1% uptime.boot 4496 ± 1% -16.4% 3757 ± 4% uptime.idle 720.75 ± 0% +14.7% 826.75 ± 0% vmstat.procs.r 8795090 ± 0% +44.3% 12689850 ± 2% vmstat.system.cs 2115904 ± 1% -7.1% 1965559 ± 3% vmstat.system.in 49651750 ± 0% -34.1% 32710138 ± 3% numa-numastat.node0.local_node 49657590 ± 0% -34.1% 32719401 ± 3% numa-numastat.node0.numa_hit 51230886 ± 1% -37.1% 32238968 ± 4% numa-numastat.node1.local_node 51235497 ± 1% -37.1% 32241201 ± 4% numa-numastat.node1.numa_hit 16114 ± 3% +15.3% 18577 ± 2% softirqs.NET_RX 3907664 ± 1% +44.4% 5643157 ± 1% softirqs.RCU 2029740 ± 1% -67.7% 655775 ± 16% softirqs.SCHED 17332687 ± 0% +21.1% 20995794 ± 1% softirqs.TIMER 97.19 ± 0% +1.5% 98.70 ± 0% turbostat.%Busy 2694 ± 0% +1.2% 2726 ± 0% turbostat.Avg_MHz 2.58 ± 2% -56.9% 1.11 ± 7% turbostat.CPU%c1 0.22 ± 3% -14.8% 0.19 ± 2% turbostat.CPU%c6 894518 ± 5% -16.2% 749856 ± 5% numa-meminfo.node0.MemUsed 31304 ± 18% -19.8% 25116 ± 13% numa-meminfo.node0.PageTables 137230 ± 14% -13.2% 119062 ± 7% numa-meminfo.node0.Slab 77654 ± 43% +53.9% 119507 ± 2% numa-meminfo.node1.Active(anon) 676863 ± 6% +18.9% 804493 ± 5% numa-meminfo.node1.MemUsed 40040 ± 87% +102.8% 81204 ± 3% numa-meminfo.node1.Shmem 2.29 ± 8% -82.5% 0.40 ±112% perf-profile.cycles-pp.call_cpuidle 3.41 ± 8% -84.8% 0.52 ±113% perf-profile.cycles-pp.cpu_startup_entry 2.29 ± 8% -82.4% 0.40 ±112% perf-profile.cycles-pp.cpuidle_enter 2.26 ± 9% -82.4% 0.40 ±112% perf-profile.cycles-pp.cpuidle_enter_state 2.24 ± 9% -82.4% 0.40 ±112% perf-profile.cycles-pp.intel_idle 3.42 ± 7% -84.9% 0.52 ±113% perf-profile.cycles-pp.start_secondary 86451 ± 1% +9.1% 94357 ± 3% proc-vmstat.numa_hint_faults_local 1.009e+08 ± 0% -35.6% 64951081 ± 3% proc-vmstat.numa_hit 1.009e+08 ± 0% -35.6% 64941826 ± 3% proc-vmstat.numa_local 1744958 ± 0% -36.7% 1105128 ± 3% proc-vmstat.pgalloc_dma32 99309681 ± 0% -35.5% 64014721 ± 3% proc-vmstat.pgalloc_normal 1.01e+08 ± 0% -35.6% 65068018 ± 3% proc-vmstat.pgfree 489.41 ± 0% +18.4% 579.66 ± 1% time.elapsed_time 489.41 ± 0% +18.4% 579.66 ± 1% time.elapsed_time.max 1.005e+09 ± 0% +113.2% 2.142e+09 ± 4% time.involuntary_context_switches 32394 ± 0% +19.3% 38635 ± 1% time.system_time 1700 ± 0% +54.6% 2627 ± 3% time.user_time 3.164e+09 ± 0% +64.2% 5.195e+09 ± 3% time.voluntary_context_switches 7826 ± 18% -19.7% 6283 ± 13% numa-vmstat.node0.nr_page_table_pages 24938156 ± 0% -34.5% 16344223 ± 2% numa-vmstat.node0.numa_hit 24865727 ± 0% -34.6% 16268676 ± 2% numa-vmstat.node0.numa_local 19415 ± 43% +53.9% 29872 ± 2% numa-vmstat.node1.nr_active_anon 10012 ± 87% +102.5% 20273 ± 3% numa-vmstat.node1.nr_shmem 25578109 ± 2% -35.3% 16544997 ± 3% numa-vmstat.node1.numa_hit 25542618 ± 2% -35.4% 16513089 ± 3% numa-vmstat.node1.numa_local 7.39e+08 ± 1% -63.6% 2.693e+08 ± 12% cpuidle.C1-HSW.time 1.279e+08 ± 2% -75.4% 31468140 ± 20% cpuidle.C1-HSW.usage 97966635 ± 3% -38.4% 60323848 ± 6% cpuidle.C1E-HSW.time 2424496 ± 2% -54.3% 1108542 ± 10% cpuidle.C1E-HSW.usage 2168324 ± 5% -38.4% 1335858 ± 6% cpuidle.C3-HSW.time 23824 ± 2% -51.7% 11496 ± 10% cpuidle.C3-HSW.usage 133416 ± 1% -41.7% 77729 ± 10% cpuidle.C6-HSW.usage 72278 ± 96% -85.4% 10574 ± 13% cpuidle.POLL.time 7564 ± 0% -64.3% 2699 ± 13% cpuidle.POLL.usage 447972 ± 12% -77.1% 102749 ± 39% sched_debug.cfs_rq:/.MIN_vruntime.avg 23408331 ± 2% -74.0% 6077779 ± 38% sched_debug.cfs_rq:/.MIN_vruntime.max 3133258 ± 5% -75.3% 773710 ± 35% sched_debug.cfs_rq:/.MIN_vruntime.stddev 0.17 ±173% +1025.0% 1.88 ± 15% sched_debug.cfs_rq:/.load.min 4.72 ± 5% +21.2% 5.72 ± 4% sched_debug.cfs_rq:/.load_avg.min 447972 ± 12% -77.1% 102749 ± 39% sched_debug.cfs_rq:/.max_vruntime.avg 23408331 ± 2% -74.0% 6077779 ± 38% sched_debug.cfs_rq:/.max_vruntime.max 3133258 ± 5% -75.3% 773710 ± 35% sched_debug.cfs_rq:/.max_vruntime.stddev 34877232 ± 0% -16.9% 28973299 ± 2% sched_debug.cfs_rq:/.min_vruntime.avg 36136568 ± 0% -16.9% 30030834 ± 1% sched_debug.cfs_rq:/.min_vruntime.max 33553337 ± 0% -16.4% 28050567 ± 2% sched_debug.cfs_rq:/.min_vruntime.min 580186 ± 2% -26.0% 429600 ± 11% sched_debug.cfs_rq:/.min_vruntime.stddev 0.08 ±110% +710.0% 0.67 ± 21% sched_debug.cfs_rq:/.nr_running.min 0.17 ± 12% -59.6% 0.07 ± 31% sched_debug.cfs_rq:/.nr_running.stddev 25.39 ± 2% -17.8% 20.88 ± 3% sched_debug.cfs_rq:/.runnable_load_avg.max 0.44 ±173% +1002.5% 4.90 ± 13% sched_debug.cfs_rq:/.runnable_load_avg.min 4.84 ± 2% -39.4% 2.93 ± 8% sched_debug.cfs_rq:/.runnable_load_avg.stddev 952653 ± 15% -51.5% 462372 ± 50% sched_debug.cfs_rq:/.spread0.avg 2206041 ± 10% -31.4% 1514231 ± 8% sched_debug.cfs_rq:/.spread0.max 577122 ± 2% -25.8% 428166 ± 11% sched_debug.cfs_rq:/.spread0.stddev 46.85 ± 3% -34.0% 30.93 ± 24% sched_debug.cfs_rq:/.util_avg.stddev 115635 ± 1% +107.7% 240214 ± 8% sched_debug.cpu.avg_idle.avg 506560 ± 15% +83.7% 930497 ± 4% sched_debug.cpu.avg_idle.max 6833 ±131% +168.7% 18362 ± 34% sched_debug.cpu.avg_idle.min 78999 ± 9% +214.9% 248764 ± 8% sched_debug.cpu.avg_idle.stddev 290289 ± 0% +10.7% 321362 ± 0% sched_debug.cpu.clock.avg 290345 ± 0% +10.7% 321461 ± 0% sched_debug.cpu.clock.max 290230 ± 0% +10.7% 321263 ± 0% sched_debug.cpu.clock.min 34.48 ± 26% +74.7% 60.23 ± 5% sched_debug.cpu.clock.stddev 290289 ± 0% +10.7% 321362 ± 0% sched_debug.cpu.clock_task.avg 290345 ± 0% +10.7% 321461 ± 0% sched_debug.cpu.clock_task.max 290230 ± 0% +10.7% 321263 ± 0% sched_debug.cpu.clock_task.min 34.48 ± 26% +74.7% 60.23 ± 5% sched_debug.cpu.clock_task.stddev 0.50 ± 80% +865.0% 4.82 ± 7% sched_debug.cpu.cpu_load[0].min 2.00 ± 33% +155.0% 5.10 ± 6% sched_debug.cpu.cpu_load[1].min 3.31 ± 17% +59.6% 5.28 ± 6% sched_debug.cpu.cpu_load[2].min 4.28 ± 5% +28.0% 5.47 ± 4% sched_debug.cpu.cpu_load[3].min 29.69 ± 10% -21.4% 23.35 ± 4% sched_debug.cpu.cpu_load[4].max 4.39 ± 5% +24.7% 5.47 ± 4% sched_debug.cpu.cpu_load[4].min 4.99 ± 9% -30.3% 3.47 ± 5% sched_debug.cpu.cpu_load[4].stddev 1275 ± 74% +660.4% 9696 ± 35% sched_debug.cpu.curr->pid.min 2960 ± 11% -54.8% 1338 ± 39% sched_debug.cpu.curr->pid.stddev 0.22 ± 70% +935.0% 2.30 ± 30% sched_debug.cpu.load.min 0.00 ± 11% +39.0% 0.00 ± 4% sched_debug.cpu.next_balance.stddev 245043 ± 0% +12.4% 275488 ± 0% sched_debug.cpu.nr_load_updates.avg 253700 ± 0% +11.3% 282470 ± 0% sched_debug.cpu.nr_load_updates.max 242515 ± 0% +12.5% 272755 ± 0% sched_debug.cpu.nr_load_updates.min 8.93 ± 5% +12.5% 10.05 ± 2% sched_debug.cpu.nr_running.avg 29.08 ± 4% -23.2% 22.35 ± 2% sched_debug.cpu.nr_running.max 0.11 ± 70% +1970.0% 2.30 ± 26% sched_debug.cpu.nr_running.min 6.52 ± 3% -40.5% 3.88 ± 8% sched_debug.cpu.nr_running.stddev 29380032 ± 0% +62.7% 47789650 ± 1% sched_debug.cpu.nr_switches.avg 32480191 ± 0% +63.0% 52947357 ± 1% sched_debug.cpu.nr_switches.max 26568245 ± 0% +64.3% 43639487 ± 2% sched_debug.cpu.nr_switches.min 1724177 ± 1% +28.9% 2223172 ± 5% sched_debug.cpu.nr_switches.stddev 307.39 ± 7% -42.6% 176.42 ± 14% sched_debug.cpu.nr_uninterruptible.max -278.64 ±-10% -41.9% -162.00 ± -5% sched_debug.cpu.nr_uninterruptible.min 131.21 ± 6% -45.4% 71.66 ± 3% sched_debug.cpu.nr_uninterruptible.stddev 290228 ± 0% +10.7% 321261 ± 0% sched_debug.cpu_clk 286726 ± 0% +11.2% 318853 ± 0% sched_debug.ktime 290228 ± 0% +10.7% 321261 ± 0% sched_debug.sched_clk Disclaimer: Results have been estimated based on internal Intel analysis and are provided for informational purposes only. Any difference in system hardware or software design or configuration may affect actual performance. Thanks, Ying Huang

6 years, 2 months

4
8
0 / 0

[random] a237e0d704: BUG: kernel test hang

by kernel test robot

FYI, we noticed the following commit: https://git.kernel.org/pub/scm/linux/kernel/git/tytso/random.git dev commit a237e0d70467a748cca16b2e4dbaefa831cd5f22 ("random: replace non-blocking pool with a Chacha20-based CRNG") on test machine: vm-lkp-wsx03-quantal-i386: 1 threads qemu-system-i386 -enable-kvm with 360M memory caused below changes: +-------------------------------------------------------------------------+----------+------------+ | | v4.7-rc1 | a237e0d704 | +-------------------------------------------------------------------------+----------+------------+ | boot_successes | 74 | 4 | | boot_failures | 31 | | | invoked_oom-killer:gfp_mask=0x | 9 | | | Mem-Info | 9 | | | Out_of_memory:Kill_process | 9 | | | page_allocation_failure:order:#,mode:#(GFP_HIGHUSER_MOVABLE) | 8 | | | warn_alloc_failed+0x | 7 | | | backtrace:_do_fork | 9 | | | backtrace:SyS_clone | 9 | | | backtrace:do_writev | 6 | | | backtrace:SyS_writev | 6 | | | page_allocation_failure:order:#,mode:#(GFP_HIGHUSER_MOVABLE|__GFP_ZERO) | 1 | | | BUG:unable_to_handle_kernel | 2 | | | Oops:#[##] | 2 | | | EIP_is_at_perf_prepare_sample | 2 | | | Kernel_panic-not_syncing:Fatal_exception | 2 | | | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | | | IP-Config:Auto-configuration_of_network_failed | 20 | | +-------------------------------------------------------------------------+----------+------------+ [ 1502.687825] Writes: Total: 2 Max/Min: 0/0 Fail: 0 Elapsed time: 1540 BUG: kernel test hang qemu-system-i386 -enable-kvm -kernel /pkg/linux/i386-randconfig-s1-201622/gcc-6/a237e0d70467a748cca16b2e4dbaefa831cd5f22/vmlinuz-4.7.0-rc1-00001-ga237e0d -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-lkp-wsx03-quantal-i386-7/bisect_boot-1-quantal-core-i386.cgz-i386-randconfig-s1-201622-a237e0d70467a748cca16b2e4dbaefa831cd5f22-20160531-96518-1tb7f3s-0.yaml ARCH=i386 kconfig=i386-randconfig-s1-201622 branch=linux-devel/devel-spot-201605311827 commit=a237e0d70467a748cca16b2e4dbaefa831cd5f22 BOOT_IMAGE=/pkg/linux/i386-randconfig-s1-201622/gcc-6/a237e0d70467a748cca16b2e4dbaefa831cd5f22/vmlinuz-4.7.0-rc1-00001-ga237e0d max_uptime=600 RESULT_ROOT=/result/boot/1/vm-lkp-wsx03-quantal-i386/quantal-core-i386.cgz/i386-randconfig-s1-201622/gcc-6/a237e0d70467a748cca16b2e4dbaefa831cd5f22/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-lkp-wsx03-quantal-i386-7::dhcp drbd.minor_count=8' -initrd /fs/sdc1/initrd-vm-lkp-wsx03-quantal-i386-7 -m 360 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-vm-lkp-wsx03-quantal-i386-7 -serial file:/dev/shm/kboot/serial-vm-lkp-wsx03-quantal-i386-7 -daemonize -display none -monitor null FYI, raw QEMU command line is: qemu-system-i386 -enable-kvm -kernel /pkg/linux/i386-randconfig-s1-201622/gcc-6/a237e0d70467a748cca16b2e4dbaefa831cd5f22/vmlinuz-4.7.0-rc1-00001-ga237e0d -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-lkp-wsx03-quantal-i386-7/bisect_boot-1-quantal-core-i386.cgz-i386-randconfig-s1-201622-a237e0d70467a748cca16b2e4dbaefa831cd5f22-20160531-96518-1tb7f3s-0.yaml ARCH=i386 kconfig=i386-randconfig-s1-201622 branch=linux-devel/devel-spot-201605311827 commit=a237e0d70467a748cca16b2e4dbaefa831cd5f22 BOOT_IMAGE=/pkg/linux/i386-randconfig-s1-201622/gcc-6/a237e0d70467a748cca16b2e4dbaefa831cd5f22/vmlinuz-4.7.0-rc1-00001-ga237e0d max_uptime=600 RESULT_ROOT=/result/boot/1/vm-lkp-wsx03-quantal-i386/quantal-core-i386.cgz/i386-randconfig-s1-201622/gcc-6/a237e0d70467a748cca16b2e4dbaefa831cd5f22/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-lkp-wsx03-quantal-i386-7::dhcp drbd.minor_count=8' -initrd /fs/sdc1/initrd-vm-lkp-wsx03-quantal-i386-7 -m 360 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-vm-lkp-wsx03-quantal-i386-7 -serial file:/dev/shm/kboot/serial-vm-lkp-wsx03-quantal-i386-7 -daemonize -display none -monitor null Thanks, Kernel Test Robot

6 years, 2 months

1
0
0 / 0

[lkp] [nfs] 25847d9a3a: system hang

by kernel test robot

FYI, we noticed the following commit: https://git.kernel.org/pub/scm/linux/kernel/git/agruen/linux-richacl.git richacl-wip commit 25847d9a3ad59f72b8f37dd73f34ef45b5a30115 ("nfs: Add richacl support") on test machine: lkp-hsw01: 56 threads Grantley Haswell-EP with 64G memory caused system hang during vm-scalability test (our system heavily relies on NFS to lanuch testcase and store test data). To reproduce: git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git cd lkp-tests bin/lkp install job.yaml # job file is attached in this email bin/lkp run job.yaml Thanks, Xiaolong

6 years, 2 months

2
1
0 / 0

[Revert "ppdev] 1701f68040: genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus)

by kernel test robot

Greetings, 0day kernel testing robot got the below dmesg and the first bad commit is https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit 1701f680407c6cc05121566cef5293d33881fe71 Author: Linus Torvalds <torvalds(a)linux-foundation.org> AuthorDate: Fri Mar 25 09:02:13 2016 -0700 Commit: Linus Torvalds <torvalds(a)linux-foundation.org> CommitDate: Fri Mar 25 09:02:13 2016 -0700 Revert "ppdev: use new parport device model" This reverts commit e7223f18603374d235d8bb0398532323e5f318b9. It causes problems when a ppdev tries to register before the parport driver has been registered with the device model. That will trigger the BUG_ON(!drv->bus->p); at drivers/base/driver.c:153. The call chain is kernel_init -> kernel_init_freeable -> do_one_initcall -> ppdev_init -> __parport_register_driver -> driver_register *BOOM* Reported-by: kernel test robot <fengguang.wu(a)intel.com> Reported-by: Ross Zwisler <zwisler(a)gmail.com> Reported-by: Petr Mladek <pmladek(a)suse.com> Cc: Sudip Mukherjee <sudipm.mukherjee(a)gmail.com> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> +------------------------------------------------------------+------------+------------+-------------+ | | 3b3b3bd977 | 1701f68040 | v4.6_052910 | +------------------------------------------------------------+------------+------------+-------------+ | boot_successes | 0 | 0 | 0 | | boot_failures | 92 | 26 | 13 | | kernel_BUG_at_drivers/base/driver.c | 92 | | | | invalid_opcode:#[##] | 92 | | | | invalid_opcode:#[##]PREEMPT_PREEMPT_SMP_SMP | 92 | | | | EIP_is_at_driver_register | 92 | | | | Kernel_panic-not_syncing:Fatal_exception | 92 | | | | backtrace:__parport_register_driver | 92 | | | | backtrace:ppdev_init | 92 | | | | backtrace:kernel_init_freeable | 92 | | | | genirq:Flags_mismatch_irq##(serial)vs.#(goldfish_pdev_bus) | 0 | 26 | 13 | | WARNING:at_arch/x86/mm/dump_pagetables.c:#note_page | 0 | 24 | 13 | | backtrace:mark_rodata_ro | 0 | 24 | 13 | | genirq:Flags_mismatch_irq | 0 | 1 | 2 | | genirq:Flags_mismatch_irq##(serial)vs | 0 | 0 | 2 | +------------------------------------------------------------+------------+------------+-------------+ [ 14.172557] Bluetooth: Starting self testing [ 14.173765] Bluetooth: Finished self testing [ 14.173765] Bluetooth: Finished self testing [ 14.180471] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) [ 14.180471] genirq: Flags mismatch irq 4. 00000000 (serial) vs. 00000080 (goldfish_pdev_bus) [ 14.184737] Freeing unused kernel memory: 2312K (8239a000 - 825dc000) [ 14.184737] Freeing unused kernel memory: 2312K (8239a000 - 825dc000) [ 14.186874] Write protecting the kernel text: 12348k git bisect start v4.6 v4.5 -- git bisect bad 7b367f5dba5c5162a7308e85d3fc9170b0cb3e5f # 14:23 0- 22 Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip git bisect good 46e595a17dcf11404f713845ecb5b06b92a94e43 # 14:31 22+ 24 Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc git bisect good 70c5eb84738cba88e08526fa14e06418cb2bd473 # 14:36 22+ 23 Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild git bisect bad 8b8c877febd2610050758f1b7b97050a7d2dc794 # 17:12 0- 24 Merge tag 'hwmon-for-linus-v4.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging git bisect bad c155c7492c9ab81f3d358a10eb4f29376ae53d85 # 19:50 0- 29 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input git bisect good 8407ef4685895759f111190d091394ef974f52fb # 22:27 22+ 48 Merge tag 'rtc-4.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux git bisect good f98c2135f8e73f1cfba640dfb80beb0dad75f278 # 22:37 22+ 26 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux git bisect good 3b3b3bd97788e1f574c71f865d8465b00a6b8708 # 22:44 22+ 26 Merge tag 'firewire-update2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 git bisect bad 1701f680407c6cc05121566cef5293d33881fe71 # 22:51 0- 18 Revert "ppdev: use new parport device model" # first bad commit: [1701f680407c6cc05121566cef5293d33881fe71] Revert "ppdev: use new parport device model" git bisect good 3b3b3bd97788e1f574c71f865d8465b00a6b8708 # 22:53 66+ 92 Merge tag 'firewire-update2' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 # extra tests with CONFIG_DEBUG_INFO_REDUCED git bisect bad 1701f680407c6cc05121566cef5293d33881fe71 # 22:58 0- 13 Revert "ppdev: use new parport device model" # extra tests on HEAD of linux-devel/devel-hourly-2016052910 git bisect bad cab701ace412fb3a265289932d84b4d0496608ef # 22:58 0- 13 0day head guard for 'devel-hourly-2016052910' # extra tests on tree/branch linus/master # extra tests with first bad commit reverted # extra tests on tree/branch linus/master # extra tests on tree/branch linux-next/master This script may reproduce the error. ---------------------------------------------------------------------------- #!/bin/bash kernel=$1 initrd=quantal-core-i386.cgz wget --no-clobber https://github.com/fengguang/reproduce-kernel-bug/raw/master/initrd/$initrd kvm=( qemu-system-x86_64 -enable-kvm -cpu kvm64 -kernel $kernel -initrd $initrd -m 300 -smp 2 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -serial stdio -display none -monitor null ) append=( hung_task_panic=1 earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal root=/dev/ram0 rw drbd.minor_count=8 ) "${kvm[@]}" --append "${append[*]}" ---------------------------------------------------------------------------- --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/lkp Intel Corporation

6 years, 2 months

4
4
0 / 0

[lkp] [thermal] 1c3ceab5a8: WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:61 internal_create_group+0x1e4/0x420

by kernel test robot

FYI, we noticed the following commit: https://github.com/0day-ci/linux Eduardo-Valentin/thermal-reorganizing-thermal-core/20160531-063319 commit 1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5 ("thermal: core: use dev.groups to manage always present tz attributes") on test machine: vm-vp-quantal-i386: 1 threads qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap with 360M memory caused below changes: +------------------------------------------------------------------+------------+------------+ | | ed5838d224 | 1c3ceab5a8 | +------------------------------------------------------------------+------------+------------+ | boot_successes | 0 | 0 | | boot_failures | 12 | 10 | | invoked_oom-killer:gfp_mask=0x | 12 | | | Mem-Info | 12 | | | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 12 | | | backtrace:btrfs_test_extent_io | 12 | | | backtrace:init_btrfs_fs | 12 | | | backtrace:kernel_init_freeable | 12 | 10 | | page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_NORETRY) | 1 | | | warn_alloc_failed+0x | 1 | | | backtrace:ring_buffer_consumer_thread | 1 | | | WARNING:at_fs/sysfs/group.c:#internal_create_group | 0 | 10 | | BUG:unable_to_handle_kernel | 0 | 10 | | Oops | 0 | 10 | | EIP_is_at_string | 0 | 10 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 10 | | backtrace:power_supply_register | 0 | 10 | | backtrace:test_power_init | 0 | 10 | +------------------------------------------------------------------+------------+------------+ [ 20.597358] __power_supply_register: Expected proper parent device for 'test_ac' [ 20.601762] __power_supply_register: Expected proper parent device for 'test_battery' [ 20.607055] ------------[ cut here ]------------ [ 20.612928] WARNING: CPU: 0 PID: 1 at fs/sysfs/group.c:61 internal_create_group+0x1e4/0x420 [ 20.627436] BUG: unable to handle kernel paging request at 6c756d65 [ 20.629794] IP: [<c1685a0c>] string+0x2c/0xb0 [ 20.631621] *pdpt = 0000000000000000 *pde = 0000000000000000 [ 20.634330] Oops: 0000 [#1] PREEMPT SMP [ 20.638711] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc6-00055-g1c3ceab #1 [ 20.641928] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 20.645710] task: d42d8040 ti: d42d4000 task.ti: d42d4000 [ 20.647635] EIP: 0060:[<c1685a0c>] EFLAGS: 00010086 CPU: 0 [ 20.655603] EIP is at string+0x2c/0xb0 [ 20.657415] EAX: c2e111ca EBX: d42d5de8 ECX: 6c756d65 EDX: ffffffff [ 20.660981] ESI: fffffffe EDI: ffff0a00 EBP: d42d5cdc ESP: d42d5cbc [ 20.663074] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 20.665387] CR0: 80050033 CR2: 6c756d65 CR3: 02899000 CR4: 000406f0 [ 20.670149] Stack: [ 20.671374] c10b44a9 00000282 ffff0a00 ffffff04 c2e115a0 d42d5de8 c23d5bcc c2e111ca [ 20.676025] d42d5d18 c168710a ffffff04 ffff0a00 00000000 00000001 c2e111c0 000003e0 [ 20.680279] 00000002 c2e115a0 ffffff04 ffff0a00 00000000 000003e0 00000000 d42d5d2c [ 20.687079] Call Trace: [ 20.688916] [<c10b44a9>] ? do_raw_spin_unlock+0xc9/0x100 [ 20.690756] [<c168710a>] vsnprintf+0x1fa/0x410 [ 20.692577] [<c16877c7>] vscnprintf+0x17/0x50 [ 20.698734] [<c10c4bde>] vprintk_emit+0x2fe/0x560 [ 20.700766] [<c125a724>] ? internal_create_group+0x1e4/0x420 [ 20.702701] [<c10c4e7d>] vprintk+0x3d/0x40 [ 20.717325] [<c10623c8>] __warn+0xa8/0x100 [ 20.720974] [<c125a724>] ? internal_create_group+0x1e4/0x420 [ 20.723777] [<c106245b>] warn_slowpath_fmt+0x3b/0x40 [ 20.727559] [<c125a724>] internal_create_group+0x1e4/0x420 [ 20.731361] [<c125aa69>] sysfs_create_groups+0x39/0x90 [ 20.734687] [<c181c1f5>] device_add+0x5d5/0x610 [ 20.737403] [<c182d0ac>] ? pm_runtime_init+0xfc/0x110 [ 20.741928] [<c181c327>] device_register+0x17/0x20 [ 20.744590] [<c1bb1f78>] thermal_zone_device_register+0x178/0x840 [ 20.748612] [<c1b4d103>] __power_supply_register+0x273/0x3a0 [ 20.752551] [<c1b4d5b7>] power_supply_register+0x17/0x20 [ 20.757049] [<c27d4858>] test_power_init+0x21/0xa0 [ 20.759699] [<c27d4837>] ? wm831x_power_driver_init+0x11/0x11 [ 20.763614] [<c277fc78>] do_one_initcall+0xf7/0x1b8 [ 20.767399] [<c10b44a9>] ? do_raw_spin_unlock+0xc9/0x100 [ 20.770765] [<c277fea9>] ? kernel_init_freeable+0x170/0x214 [ 20.777180] [<c277fec5>] kernel_init_freeable+0x18c/0x214 [ 20.795488] [<c1ef2260>] kernel_init+0x10/0x110 [ 20.800411] [<c1efb289>] ret_from_kernel_thread+0x21/0x38 [ 20.806318] [<c1ef2250>] ? rest_init+0xb0/0xb0 [ 20.812016] Code: 89 e5 57 56 53 83 ec 14 8b 7d 0c 8b 75 08 89 55 f0 89 fa 89 75 ec 89 7d e8 c1 fa 10 81 f9 ff 0f 00 00 8d 72 ff 76 58 85 d2 74 46 <0f> b6 19 8d 79 01 84 db 75 1a eb 3a 90 8d b4 26 00 00 00 00 83 [ 20.840640] EIP: [<c1685a0c>] string+0x2c/0xb0 SS:ESP 0068:d42d5cbc [ 20.844714] CR2: 000000006c756d65 [ 20.848276] ---[ end trace c01e283b9f8d84d6 ]--- [ 20.850775] Kernel panic - not syncing: Fatal exception FYI, raw QEMU command line is: qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/i386-randconfig-x0-05310913/gcc-6/1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5/vmlinuz-4.6.0-rc6-00055-g1c3ceab -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-vp-quantal-i386-41/bisect_boot-1-quantal-core-i386.cgz-i386-randconfig-x0-05310913-1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5-20160531-120469-1d4e5q5-0.yaml ARCH=i386 kconfig=i386-randconfig-x0-05310913 branch=linux-devel/devel-catchup-201605311016 commit=1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5 BOOT_IMAGE=/pkg/linux/i386-randconfig-x0-05310913/gcc-6/1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5/vmlinuz-4.6.0-rc6-00055-g1c3ceab max_uptime=600 RESULT_ROOT=/result/boot/1/vm-vp-quantal-i386/quantal-core-i386.cgz/i386-randconfig-x0-05310913/gcc-6/1c3ceab5a8e7bcd807696d94f8863dd4e400c8c5/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-vp-quantal-i386-41::dhcp drbd.minor_count=8' -initrd /fs/sde1/initrd-vm-vp-quantal-i386-41 -m 360 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-vm-vp-quantal-i386-41 -serial file:/dev/shm/kboot/serial-vm-vp-quantal-i386-41 -daemonize -display none -monitor null Thanks, Xiaolong

6 years, 2 months

1
0
0 / 0

[lkp] [thermal] d56e262ce9: BUG: unable to handle kernel NULL pointer dereference at 0000000000000010

by kernel test robot

FYI, we noticed the following commit: https://github.com/0day-ci/linux Eduardo-Valentin/thermal-core-prevent-zones-with-no-types-to-be-registered/20160531-054136 commit d56e262ce9bb43ee5ff603afef30a2670ecda94f ("thermal: core: move trips attributes to tz->device.groups") on test machine: vm-lkp-wsx03-1G: 1 threads qemu-system-x86_64 -enable-kvm -cpu host with 1G memory caused below changes: +------------------------------------------------------------------+------------+------------+ | | a9ad6daaba | d56e262ce9 | +------------------------------------------------------------------+------------+------------+ | boot_successes | 0 | 0 | | boot_failures | 16 | 29 | | BUG:KASAN:global-out-of-bounds_in_internal_create_group_at_addr | 16 | 29 | | invoked_oom-killer:gfp_mask=0x | 2 | | | Mem-Info | 2 | | | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 2 | | | backtrace:power_supply_register | 16 | 29 | | backtrace:test_power_init | 16 | 29 | | backtrace:kernel_init_freeable | 16 | 29 | | backtrace:btrfs_test_extent_io | 2 | | | backtrace:init_btrfs_fs | 2 | | | IP-Config:Auto-configuration_of_network_failed | 10 | | | BUG:KASAN:null-ptr-deref_on_address | 0 | 29 | | BUG:unable_to_handle_kernel | 0 | 29 | | Oops | 0 | 29 | | RIP:internal_create_group | 0 | 29 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 29 | +------------------------------------------------------------------+------------+------------+ [ 13.017811] ================================================================== [ 13.019206] BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 [ 13.020849] IP: [<ffffffff87858fb2>] internal_create_group+0x1df/0x3ca [ 13.022049] PGD 0 [ 13.022613] Oops: 0000 [#1] KASAN [ 13.023465] CPU: 0 PID: 1 Comm: swapper Tainted: G B 4.6.0-rc6-00065-gd56e262 #1 [ 13.025036] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 13.026595] task: ffff88002ec88040 ti: ffff88002ec90000 task.ti: ffff88002ec90000 [ 13.028029] RIP: 0010:[<ffffffff87858fb2>] [<ffffffff87858fb2>] internal_create_group+0x1df/0x3ca [ 13.029753] RSP: 0000:ffff88002ec97ac8 EFLAGS: 00010246 [ 13.030687] RAX: 0000000000000000 RBX: ffff88003ed3cb18 RCX: 0000000000000000 [ 13.031910] RDX: 0000000000000042 RSI: 0000000000000000 RDI: 0000000000000246 [ 13.033116] RBP: ffff88002ec97b10 R08: 0000000000000000 R09: fffffbfff1367072 [ 13.034291] R10: ffff88002ec88040 R11: fffffbfff1367073 R12: ffff88003ed3c8d0 [ 13.035510] R13: ffff88003ed72328 R14: 0000000000000010 R15: ffff88003ed3cb30 [ 13.036731] FS: 0000000000000000(0000) GS:ffffffff8925c000(0000) knlGS:0000000000000000 [ 13.038214] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 13.039289] CR2: 0000000000000010 CR3: 0000000009215000 CR4: 00000000000006f0 [ 13.040493] Stack: [ 13.041009] ffffffff88484c6c ffff88003ed3cb20 000000003ecd3c68 ffff880000000000 [ 13.042687] 0000000000000003 ffff88001b5b07e8 ffff88003ed3c8d0 ffff88001b5b0800 [ 13.044410] 0000000000000000 ffff88002ec97b20 ffffffff878591ab ffff88002ec97b58 [ 13.046130] Call Trace: [ 13.046689] [<ffffffff88484c6c>] ? thermal_zone_mode_is_visible+0x46/0x46 [ 13.047884] [<ffffffff878591ab>] sysfs_create_group+0xe/0x10 [ 13.048922] [<ffffffff8785929d>] sysfs_create_groups+0x3c/0x83 [ 13.049996] [<ffffffff87e9207f>] device_add+0x3ea/0x87f [ 13.064033] [<ffffffff87e91c95>] ? dev_warn+0xd0/0xd0 [ 13.064991] [<ffffffff877022ed>] ? __wake_up_locked+0xe/0x10 [ 13.066000] [<ffffffff8771b55d>] ? init_timer_key+0x34/0x40 [ 13.066999] [<ffffffff877020f3>] ? __init_waitqueue_head+0x19/0x20 [ 13.068113] [<ffffffff87ea389c>] ? pm_runtime_init+0x1b2/0x1b7 [ 13.069164] [<ffffffff87e92529>] device_register+0x15/0x18 [ 13.070133] [<ffffffff8848980f>] thermal_zone_device_register+0x37e/0x940 [ 13.071321] [<ffffffff88489491>] ? thermal_notify_framework+0xb/0xb [ 13.072420] [<ffffffff87e8fe1a>] ? put_device+0x12/0x14 [ 13.073380] [<ffffffff87e9224f>] ? device_add+0x5ba/0x87f [ 13.074360] [<ffffffff87e91c95>] ? dev_warn+0xd0/0xd0 [ 13.075298] [<ffffffff87ea7e07>] ? wakeup_source_register+0x1b/0x21 [ 13.076389] [<ffffffff883e480f>] __power_supply_register+0x505/0x64d [ 13.077509] [<ffffffff883e4ef5>] power_supply_register+0xe/0x10 [ 13.078551] [<ffffffff89a0d286>] test_power_init+0x35/0xeb [ 13.079565] [<ffffffff89a0d251>] ? max8925_power_driver_init+0x14/0x14 [ 13.080736] [<ffffffff899b72b2>] do_one_initcall+0x178/0x242 [ 13.081742] [<ffffffff899b713a>] ? start_kernel+0x49b/0x49b [ 13.082740] [<ffffffff899b6900>] ? initcall_blacklist+0x60/0xd8 [ 13.083798] [<ffffffff876f1780>] ? parse_args+0x7f/0x448 [ 13.084779] [<ffffffff899b698a>] ? set_debug_rodata+0x12/0x12 [ 13.085804] [<ffffffff899b757d>] kernel_init_freeable+0x201/0x29b [ 13.086871] [<ffffffff88737aeb>] kernel_init+0xc/0xfb [ 13.087821] [<ffffffff8873efe2>] ret_from_fork+0x22/0x40 [ 13.088809] [<ffffffff88737adf>] ? rest_init+0x86/0x86 [ 13.089763] Code: e8 9c 3f f6 ff 8b 55 cc 49 8b 36 4c 89 e7 48 8b 45 b8 ff d0 66 85 c0 41 89 c7 75 41 ff 45 cc 49 83 c6 08 4c 89 f7 e8 76 3f f6 ff <49> 8b 06 48 85 c0 75 80 48 8d 7b 20 e8 65 3f f6 ff 4c 8b 73 20 [ 13.098062] RIP [<ffffffff87858fb2>] internal_create_group+0x1df/0x3ca [ 13.099294] RSP <ffff88002ec97ac8> [ 13.100011] CR2: 0000000000000010 [ 13.100719] ---[ end trace 1779220cc3662cfa ]--- [ 13.101553] Kernel panic - not syncing: Fatal exception [ 13.102502] Kernel Offset: 0x6600000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff) FYI, raw QEMU command line is: qemu-system-x86_64 -enable-kvm -cpu host -kernel /pkg/linux/x86_64-randconfig-s3-05310954/gcc-6/d56e262ce9bb43ee5ff603afef30a2670ecda94f/vmlinuz-4.6.0-rc6-00065-gd56e262 -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-lkp-wsx03-1G-24/bisect_boot-1-debian-x86_64-2015-02-07.cgz-x86_64-randconfig-s3-05310954-d56e262ce9bb43ee5ff603afef30a2670ecda94f-20160531-109035-igvyw5-0.yaml ARCH=x86_64 kconfig=x86_64-randconfig-s3-05310954 branch=linux-devel/devel-catchup-201605311019 commit=d56e262ce9bb43ee5ff603afef30a2670ecda94f BOOT_IMAGE=/pkg/linux/x86_64-randconfig-s3-05310954/gcc-6/d56e262ce9bb43ee5ff603afef30a2670ecda94f/vmlinuz-4.6.0-rc6-00065-gd56e262 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-lkp-wsx03-1G/debian-x86_64-2015-02-07.cgz/x86_64-randconfig-s3-05310954/gcc-6/d56e262ce9bb43ee5ff603afef30a2670ecda94f/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-lkp-wsx03-1G-24::dhcp' -initrd /fs/sdc1/initrd-vm-lkp-wsx03-1G-24 -m 1024 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0,hostfwd=tcp::23623-:22 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/sdc1/disk0-vm-lkp-wsx03-1G-24,media=disk,if=virtio -drive file=/fs/sdc1/disk1-vm-lkp-wsx03-1G-24,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-vm-lkp-wsx03-1G-24 -serial file:/dev/shm/kboot/serial-vm-lkp-wsx03-1G-24 -daemonize -display none -monitor null Thanks, Xiaolong

6 years, 2 months

1
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0 / 0

[gpio] 86ea8a95a4: kernel BUG at drivers/base/driver.c:153!

by kernel test robot

FYI, we noticed the following commit: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master commit 86ea8a95a42f752fe0aa1c7ad1bfe8ce9be5d30e ("gpio: 104-idio-16: Utilize the ISA bus driver") on test machine: vm-vp-quantal-i386: 1 threads qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap with 360M memory caused below changes: +------------------------------------------------------------------+------------+------------+ | | 72bf7443ba | 86ea8a95a4 | +------------------------------------------------------------------+------------+------------+ | boot_successes | 0 | 0 | | boot_failures | 12 | 12 | | invoked_oom-killer:gfp_mask=0x | 12 | | | Mem-Info | 12 | | | Kernel_panic-not_syncing:Out_of_memory_and_no_killable_processes | 12 | | | backtrace:btrfs_test_extent_io | 12 | | | backtrace:init_btrfs_fs | 12 | | | backtrace:kernel_init_freeable | 12 | 12 | | page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_NORETRY) | 1 | | | warn_alloc_failed+0x | 1 | | | backtrace:ring_buffer_consumer_thread | 1 | | | kernel_BUG_at_drivers/base/driver.c | 0 | 12 | | invalid_opcode:#[##]SMP_DEBUG_PAGEALLOC | 0 | 12 | | EIP_is_at_driver_register | 0 | 12 | | Kernel_panic-not_syncing:Fatal_exception | 0 | 12 | | backtrace:isa_register_driver | 0 | 12 | | backtrace:idio_16_driver_init | 0 | 12 | +------------------------------------------------------------------+------------+------------+ [ 10.002548] xz_dec_test: module loaded [ 10.003490] xz_dec_test: Create a device node with 'mknod xz_dec_test c 250 0' and write .xz files to it. [ 10.005742] ------------[ cut here ]------------ [ 10.006773] kernel BUG at drivers/base/driver.c:153! [ 10.008042] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC [ 10.009379] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.6.0-rc4-00031-g86ea8a9 #1 [ 10.011155] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 10.013090] task: d3e6e000 ti: d3e78000 task.ti: d3e78000 [ 10.014213] EIP: 0060:[<c15d8814>] EFLAGS: 00010246 CPU: 0 [ 10.015351] EIP is at driver_register+0x29/0xbc [ 10.016365] EAX: c1ec186c EBX: c1dea3d8 ECX: 00000000 EDX: 00000001 [ 10.017576] ESI: 00000000 EDI: c9fb9340 EBP: d3e79f00 ESP: d3e79ef8 [ 10.018782] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 [ 10.019897] CR0: 80050033 CR2: 00000000 CR3: 01fed000 CR4: 000406d0 [ 10.021104] Stack: [ 10.021834] c1dea3c0 00000000 d3e79f20 c15dedf7 00000286 00000000 00000286 c1f23128 [ 10.024194] 00000000 c9fb9340 d3e79f28 c1f2313b d3e79f84 c1ee7c5b d4d7a500 00000000 [ 10.026562] d3e79f00 c106ee1e 00000000 c1d83ad4 00060006 c1d80bf4 00000259 d4d7a5f8 [ 10.028924] Call Trace: [ 10.029702] [<c15dedf7>] isa_register_driver+0x2b/0x11a [ 10.030806] [<c1f23128>] ? gpiolib_debugfs_init+0x1f/0x1f [ 10.031929] [<c1f2313b>] idio_16_driver_init+0x13/0x15 [ 10.033028] [<c1ee7c5b>] do_one_initcall+0xf7/0x1a4 [ 10.034092] [<c106ee1e>] ? parse_args+0x282/0x38b [ 10.035143] [<c1ee7e79>] ? kernel_init_freeable+0x171/0x212 [ 10.036287] [<c1ee7e9c>] kernel_init_freeable+0x194/0x212 [ 10.037418] [<c1902636>] kernel_init+0xd/0xd5 [ 10.038424] [<c1909889>] ret_from_kernel_thread+0x21/0x38 [ 10.039547] [<c1902629>] ? rest_init+0x116/0x116 [ 10.040576] Code: 5d c3 55 89 e5 56 53 3e 8d 74 26 00 31 d2 89 c3 8b 40 04 8b 70 48 b8 6c 18 ec c1 85 f6 0f 94 c2 31 c9 e8 08 1c b2 ff 85 f6 75 02 <0f> 0b 8b 43 04 83 78 24 00 74 06 83 7b 20 00 75 18 83 78 28 00 [ 10.048568] EIP: [<c15d8814>] driver_register+0x29/0xbc SS:ESP 0068:d3e79ef8 [ 10.050047] ---[ end trace 7b29a3068007f652 ]--- [ 10.066206] Kernel panic - not syncing: Fatal exception FYI, raw QEMU command line is: qemu-system-i386 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/i386-randconfig-x0-05280946/gcc-6/86ea8a95a42f752fe0aa1c7ad1bfe8ce9be5d30e/vmlinuz-4.6.0-rc4-00031-g86ea8a9 -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-vp-quantal-i386-61/bisect_boot-1-quantal-core-i386.cgz-i386-randconfig-x0-05280946-86ea8a95a42f752fe0aa1c7ad1bfe8ce9be5d30e-20160530-53474-w6nzwk-0.yaml ARCH=i386 kconfig=i386-randconfig-x0-05280946 branch=linux-devel/devel-spot-201605280759 commit=86ea8a95a42f752fe0aa1c7ad1bfe8ce9be5d30e BOOT_IMAGE=/pkg/linux/i386-randconfig-x0-05280946/gcc-6/86ea8a95a42f752fe0aa1c7ad1bfe8ce9be5d30e/vmlinuz-4.6.0-rc4-00031-g86ea8a9 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-vp-quantal-i386/quantal-core-i386.cgz/i386-randconfig-x0-05280946/gcc-6/86ea8a95a42f752fe0aa1c7ad1bfe8ce9be5d30e/0 LKP_SERVER=inn earlyprintk=ttyS0,115200 systemd.log_level=err debug apic=debug sysrq_always_enabled rcupdate.rcu_cpu_stall_timeout=100 panic=-1 softlockup_panic=1 nmi_watchdog=panic oops=panic load_ramdisk=2 prompt_ramdisk=0 console=ttyS0,115200 console=tty0 vga=normal rw ip=::::vm-vp-quantal-i386-61::dhcp drbd.minor_count=8' -initrd /fs/sdd1/initrd-vm-vp-quantal-i386-61 -m 360 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -pidfile /dev/shm/kboot/pid-vm-vp-quantal-i386-61 -serial file:/dev/shm/kboot/serial-vm-vp-quantal-i386-61 -daemonize -display none -monitor null Thanks, Xiaolong

6 years, 2 months

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LKP May 2016