[lkp] [Btrfs] d57227e5d3: WARNING: CPU: 7 PID: 2157 at fs/btrfs/inode.c:9115 btrfs_destroy_inode+0x254/0x2c0 [btrfs]()
by kernel test robot
FYI, we noticed the below changes on
https://github.com/0day-ci/linux Chandan-Rajendra/Btrfs-Pre-subpagesize-blocksize-cleanups/20160121-183121
commit d57227e5d3f93fc76eacf96f982c0505f72ccb64 ("Btrfs: __btrfs_buffered_write: Reserve/release extents aligned to block size")
<12>
[ 45.910671] run fstests generic/127 at 2016-01-23 19:56:46
<4>[ 1213.498047] ------------[ cut here ]------------
<4>[ 1213.502837] WARNING: CPU: 7 PID: 2157 at fs/btrfs/inode.c:9115 btrfs_destroy_inode+0x254/0x2c0 [btrfs]()
<4>[ 1213.514423] Modules linked in: dm_mod btrfs xor raid6_pq ses enclosure ipmi_devintf rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sg sr_mod ata_generic cdrom sd_mod pata_acpi mptsas snd_pcm snd_timer mptscsih coretemp kvm_intel pata_jmicron mptbase snd ahci kvm irqbypass libahci crct10dif_pclmul soundcore crc32_pclmul crc32c_intel ppdev aesni_intel serio_raw lrw pcspkr gf128mul scsi_transport_sas glue_helper ablk_helper cryptd libata i7core_edac ipmi_si parport_pc edac_core shpchp parport ipmi_msghandler acpi_cpufreq
<4>[ 1213.562665] CPU: 7 PID: 2157 Comm: umount Not tainted 4.4.0-rc6-00083-gd57227e #1
<4>[ 1213.570434] Hardware name: Supermicro X8DTN/X8DTN, BIOS 4.6.3 01/06/2010
<47>
[ 1213.570885] systemd-journald[291]: Compressed data object 519 -> 436
<4>[ 1213.583787] ffffffffa077fd18 ffff8804197dfcb0 ffffffff81410e22 0000000000000000
<4>[ 1213.591593] ffff8804197dfce8 ffffffff81078cc6 ffff88043b7c85c8 ffff88043b7c85c8
<4>[ 1213.599416] ffff88043c0f5000 ffff8802363714e8 ffff8802363714e8 ffff8804197dfcf8
<4>[ 1213.607235] Call Trace:
<4>[ 1213.609848] [<ffffffff81410e22>] dump_stack+0x4b/0x69
<4>[ 1213.615149] [<ffffffff81078cc6>] warn_slowpath_common+0x86/0xc0
<4>[ 1213.621319] [<ffffffff81078dba>] warn_slowpath_null+0x1a/0x20
<4>[ 1213.627325] [<ffffffffa070ac04>] btrfs_destroy_inode+0x254/0x2c0 [btrfs]
<4>[ 1213.634280] [<ffffffff812033a8>] destroy_inode+0x38/0x60
<4>[ 1213.639844] [<ffffffff812038e2>] evict+0x132/0x190
<4>[ 1213.644883] [<ffffffff81203977>] dispose_list+0x37/0x60
<4>[ 1213.650354] [<ffffffff81204f3a>] evict_inodes+0x16a/0x180
<4>[ 1213.656007] [<ffffffff811eb27f>] generic_shutdown_super+0x3f/0x100
<4>[ 1213.662437] [<ffffffff811eb352>] kill_anon_super+0x12/0x20
<4>[ 1213.668177] [<ffffffffa06ca4f8>] btrfs_kill_super+0x18/0x110 [btrfs]
<4>[ 1213.674776] [<ffffffff811eace3>] deactivate_locked_super+0x43/0x70
<4>[ 1213.681198] [<ffffffff811ead6c>] deactivate_super+0x5c/0x60
<4>[ 1213.687014] [<ffffffff8120801f>] cleanup_mnt+0x3f/0x90
<4>[ 1213.692396] [<ffffffff812080b2>] __cleanup_mnt+0x12/0x20
<4>[ 1213.697961] [<ffffffff810958f6>] task_work_run+0x76/0xb0
<4>[ 1213.703520] [<ffffffff81003352>] exit_to_usermode_loop+0xc2/0xd0
<4>[ 1213.709777] [<ffffffff81003c15>] syscall_return_slowpath+0xf5/0x160
<4>[ 1213.716298] [<ffffffff818c73cc>] int_ret_from_sys_call+0x25/0x8f
<4>[ 1213.722554] ---[ end trace 136a9d17f8be918f ]---
<4>[ 1213.727443] ------------[ cut here ]------------
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,
Ying Huang
5 years, 7 months
[lkp] [drm/i915] 92826fcdfc: [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
by kernel test robot
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 92826fcdfc147a7d16766e987c12a9dfe1860c3f ("drm/i915: Calculate watermark related members in the crtc_state, v4.")
With your commit, there are following new message in kernel log.
<4>[ 58.224586] Setting dangerous option prefault_disable - tainting kernel
<4>[ 58.225430] Setting dangerous option prefault_disable - tainting kernel
<5>[ 75.981870] random: nonblocking pool is initialized
<3>[ 78.699663] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun
<3>[ 78.699692] [drm:intel_set_pch_fifo_underrun_reporting [i915]] *ERROR* uncleared pch fifo underrun on pch transcoder A
<3>[ 78.699711] [drm:intel_pch_fifo_underrun_irq_handler [i915]] *ERROR* PCH transcoder A FIFO underrun
<4>[ 79.938904] Setting dangerous option prefault_disable - tainting kernel
<4>[ 80.051631] Setting dangerous option prefault_disable - tainting kernel
<4>[ 80.052652] Setting dangerous option prefault_disable - tainting kernel
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,
Ying Huang
5 years, 7 months
[lkp] [Staging] a9ddaac527: Fixed Kernel BUG: scheduling while atomic: swapper/1/0x00000002
by kernel test robot
FYI, we noticed the below changes on
https://github.com/0day-ci/linux Sudip-Mukherjee/Revert-Staging-panel-usleep_range-is-preferred-over-udelay/20160123-172052
commit a9ddaac527316789b14647b823878ca305827b55 ("Revert "Staging: panel: usleep_range is preferred over udelay"")
The commit FIXED the following bugs in the parent commit.
[ 11.176305] BUG: scheduling while atomic: swapper/1/0x00000002
[ 11.176789] CPU: 0 PID: 1 Comm: swapper Not tainted 4.4.0-rc8 #1
[ 11.177245] 00000000 00000000 cb06bd44 c180fb84 cb06bd60 c11e0a5f c3f8659c cb0672a8
[ 11.177961] 00000001 00000002 00000002 cb06bd84 c3a06fcf 00000002 00000000 8cae9974
[ 11.178664] cb067000 00000001 cb06c000 cb067000 cb06bd94 c3a090a5 00000001 cb06bda8
[ 11.179360] Call Trace:
[ 11.179565] [<c180fb84>] dump_stack+0x32/0x4e
[ 11.179922] [<c11e0a5f>] __schedule_bug+0xaf/0xe0
[ 11.180296] [<c3a06fcf>] __schedule+0xff/0x2090
[ 11.180670] [<c3a090a5>] schedule+0xa5/0x120
[ 11.181008] [<c3a11aef>] schedule_hrtimeout_range_clock+0x3af/0x470
[ 11.181493] [<c124fb60>] ? __hrtimer_init+0xb0/0xb0
[ 11.181931] [<c3a11bcd>] schedule_hrtimeout_range+0x1d/0x30
[ 11.182361] [<c3a11069>] usleep_range+0x69/0x90
[ 11.182732] [<c3029701>] lcd_write_cmd_p8+0x61/0x110
[ 11.183138] [<c3026fe1>] lcd_init_display+0x51/0x260
[ 11.183553] [<c302c3e6>] panel_attach+0x1396/0x1bd0
[ 11.183960] [<c1357b7d>] ? __free_pages+0xbd/0xd0
[ 11.184327] [<c1357bf5>] ? free_pages+0x65/0x80
[ 11.184696] [<c13f4d7e>] ? slob_free_pages+0x5e/0x70
[ 11.185085] [<c13f4f2c>] ? slob_free+0x19c/0xbd0
[ 11.185447] [<c257fc10>] ? driver_detach+0x60/0x60
[ 11.185838] [<c257fc74>] port_check+0x64/0x80
[ 11.186179] [<c259ed99>] bus_for_each_dev+0xf9/0x1a0
[ 11.186565] [<c25802fe>] __parport_register_driver+0x1ce/0x200
[ 11.187037] [<c257fc10>] ? driver_detach+0x60/0x60
[ 11.187411] [<c4c09622>] panel_init_module+0x489/0x568
[ 11.187821] [<c4c09199>] ? bcm2048_i2c_driver_init+0x2d/0x2d
[ 11.188261] [<c4b3af71>] do_one_initcall+0x24f/0x3fe
[ 11.188697] [<c4b3b49d>] ? kernel_init_freeable+0x37d/0x559
[ 11.189128] [<c4b3b4cb>] kernel_init_freeable+0x3ab/0x559
[ 11.189557] [<c3a0200b>] kernel_init+0x1b/0x280
[ 11.189931] [<c3a14888>] ret_from_kernel_thread+0x20/0x34
[ 11.190373] [<c3a01ff0>] ? rest_init+0x110/0x110
Thanks,
Ying Huang
5 years, 7 months
[perf/x86] 75925e1ad7: BUG: unable to handle kernel paging request at 000045b8
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 75925e1ad7f5a4e867bd14ff8e7f114ea1596434
Author: Andi Kleen <ak(a)linux.intel.com>
AuthorDate: Thu Oct 22 15:07:21 2015 -0700
Commit: Ingo Molnar <mingo(a)kernel.org>
CommitDate: Mon Nov 23 09:58:25 2015 +0100
perf/x86: Optimize stack walk user accesses
Change the perf user stack walking to use the new
__copy_from_user_nmi(), and split each access into word sized transfer
sizes. This allows to inline the complete access and optimize it all
into a single load.
The main advantage is that this avoids the overhead of double page
faults. When normal copy_from_user() fails it reexecutes the copy to
compute an accurate number of non copied bytes. This leads to
executing the expensive page fault twice.
While walking stacks having a fault at some point is relatively common
(typically when some part of the program isn't compiled with frame
pointers), so this is a large overhead.
With the optimized copies we avoid this problem because they only do
all accesses once. And of course they're much faster too when the
access does not fault because they're just single instructions instead
of complex function calls.
While profiling a kernel build with -g, the patch brings down the
average time of the PMI handler from 966ns to 552ns (-43%).
Signed-off-by: Andi Kleen <ak(a)linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz(a)infradead.org>
Cc: Arnaldo Carvalho de Melo <acme(a)redhat.com>
Cc: Jiri Olsa <jolsa(a)redhat.com>
Cc: Linus Torvalds <torvalds(a)linux-foundation.org>
Cc: Mike Galbraith <efault(a)gmx.de>
Cc: Peter Zijlstra <peterz(a)infradead.org>
Cc: Stephane Eranian <eranian(a)google.com>
Cc: Thomas Gleixner <tglx(a)linutronix.de>
Cc: Vince Weaver <vincent.weaver(a)maine.edu>
Link: http://lkml.kernel.org/r/1445551641-13379-2-git-send-email-andi@firstfloo...
Signed-off-by: Ingo Molnar <mingo(a)kernel.org>
+-------------------------------------------------------+------------+------------+------------+
| | 10013ebb5d | 75925e1ad7 | f4b8c83d98 |
+-------------------------------------------------------+------------+------------+------------+
| boot_successes | 910 | 302 | 52 |
| boot_failures | 0 | 8 | 2 |
| Oops | 0 | 8 | 2 |
| EIP_is_at_perf_prepare_sample | 0 | 8 | |
| Kernel_panic-not_syncing:Fatal_exception | 0 | 6 | 1 |
| backtrace:iterate_dir | 0 | 3 | |
| backtrace:SyS_getdents64 | 0 | 3 | |
| BUG:unable_to_handle_kernel | 0 | 3 | 2 |
| Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 2 | 1 |
| EIP_is_at_end | 0 | 0 | 2 |
+-------------------------------------------------------+------------+------------+------------+
[main] Setsockopt(1 29 80d3000 a3) on fd 380 [9:5:0]
[main] 375 sockets created based on info from socket cachefile.
[main] Generating file descriptors
[ 13.207214] BUG: unable to handle kernel paging request at 000045b8
[ 13.207885] IP: [<7fe9212f>] perf_prepare_sample+0x7d/0x283
[ 13.208435] *pde = 00000000
[ 13.208810] Oops: 0000 [#1] DEBUG_PAGEALLOC
[ 13.209253] Modules linked in:
[ 13.209626] CPU: 0 PID: 2662 Comm: trinity-main Not tainted 4.4.0-rc2-00045-g75925e1 #231
[ 13.210447] task: 82b00f40 ti: 81cfa000 task.ti: 81cfa000
[ 13.211012] EIP: 0060:[<7fe9212f>] EFLAGS: 00010206 CPU: 0
[ 13.211616] EIP is at perf_prepare_sample+0x7d/0x283
[ 13.212094] EAX: 000045b8 EBX: 81cfbbe8 ECX: 81cfbe98 EDX: 00000001
[ 13.212806] ESI: 81cfbcc0 EDI: 829dc800 EBP: 81cfbbdc ESP: 81cfbbc0
[ 13.213420] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[ 13.213969] CR0: 80050033 CR2: 000045b8 CR3: 08c25000 CR4: 00000690
[ 13.214610] DR0: 087b0998 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 13.215201] DR6: ffff0ff0 DR7: 00000600
[ 13.215657] Stack:
[ 13.215859] 00389c48 00000000 0000ffff 0000e164 829dc800 81cfbcc0 00000000 81cfbc10
[ 13.216745] 7fe92352 81cfbe98 00000009 00300001 00000000 022352c0 8926d4a0 00000002
[ 13.217629] 8068a6e0 8926d480 829dc800 00000000 81cfbc30 7fe924ee 00000000 81cfbcc0
[ 13.218560] Call Trace:
[ 13.218803] [<7fe92352>] perf_event_output+0x1d/0x54
[ 13.219287] [<7fe924ee>] __perf_event_overflow+0x165/0x1d2
[ 13.219856] [<7fe92c52>] perf_swevent_overflow+0x46/0x60
[ 13.220383] [<7fe92d2e>] perf_swevent_event+0xc2/0xcc
[ 13.220906] [<80000000>] ? __key_link_begin+0x33/0xc5
[ 13.221450] [<7fe930db>] ___perf_sw_event+0x1f7/0x207
[ 13.221966] [<7fe068ed>] ? sched_clock+0x9/0xc
[ 13.222402] [<7fe4f08d>] ? local_clock+0x19/0x1c
[ 13.222882] [<7fe8d51b>] ? __perf_event_header__init_id+0x76/0xb2
[ 13.223544] [<7fe9ae34>] ? __alloc_pages_nodemask+0xda/0x549
[ 13.224088] [<7fe4c729>] ? ___might_sleep+0x2b/0xe8
[ 13.224615] [<7fe4c729>] ? ___might_sleep+0x2b/0xe8
[ 13.225084] [<7fe9e421>] ? __lru_cache_add+0x11/0x42
[ 13.225610] [<7fe9e6e4>] ? lru_cache_add+0x47/0x49
[ 13.226078] [<7fea9706>] ? handle_mm_fault+0x51d/0xc1e
[ 13.226613] [<7fe93122>] __perf_sw_event+0x37/0x4e
[ 13.227081] [<7fe93122>] ? __perf_sw_event+0x37/0x4e
[ 13.227600] [<7fe28dc7>] __do_page_fault+0x326/0x333
[ 13.228132] [<7fe2719b>] ? kvm_async_pf_task_wake+0xed/0xed
[ 13.228720] [<7fe28e7e>] do_page_fault+0x1a/0x1e
[ 13.229169] [<7fe271bd>] do_async_page_fault+0x22/0x3c
[ 13.229705] [<8034b44c>] error_code+0x30/0x38
[ 13.230137] [<80050000>] ? rb_erase+0x1e6/0x212
[ 13.230628] [<7fe2719b>] ? kvm_async_pf_task_wake+0xed/0xed
[ 13.231172] [<7fec772d>] ? filldir64+0x64/0xe1
[ 13.231617] [<7fed4ee8>] dcache_readdir+0xef/0x143
[ 13.232084] [<7fec7905>] iterate_dir+0x79/0xf7
[ 13.232528] [<7fec7be0>] SyS_getdents64+0x6c/0xb0
[ 13.232986] [<7fec76c9>] ? SyS_ioctl+0x64/0x64
[ 13.233431] [<7fe00f71>] do_syscall_32_irqs_on+0x3e/0x50
[ 13.233980] [<8034ab57>] entry_INT80_32+0x27/0x27
[ 13.234448] [<80340000>] ? rawsock_create+0x84/0xf3
[ 13.234959] Code: e8 59 de f7 ff c7 46 3c 00 00 00 00 89 46 38 f6 45 f0 20 74 20 8b 55 08 89 f8 e8 de 21 00 00 85 c0 89 46 68 ba 01 00 00 00 74 03 <8b> 10 42 c1 e2 03 66 01 53 06 f7 45 f0 00 04 00 00 74 21 8b 56
[ 13.237775] EIP: [<7fe9212f>] perf_prepare_sample+0x7d/0x283 SS:ESP 0068:81cfbbc0
[ 13.238575] CR2: 00000000000045b8
[ 13.238897] ---[ end trace d702bb6773bf582d ]---
[ 13.239343] Kernel panic - not syncing: Fatal exception
git bisect start f4b8c83d98967021814647eae93530a480700737 afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc --
git bisect bad 46f2bd9763de28d178c8dcfa8630e0bc839a84fb # 09:23 0- 3 Merge 'fdmanana/integration-4.5' into devel-spot-201601220840
git bisect bad 84974ba0e47e0e0c344c7dc74adae0aa44188c8e # 09:31 0- 1 Merge 'jpoimboe/delme9' into devel-spot-201601220840
git bisect bad 78c56d960fd10d87e1bcc36682eaa676fa2ed3f7 # 09:35 24- 8 Merge 'linux-review/Oreste-Salerno/Add-device-tree-support-to-the-cyttsp-driver/20160122-062511' into devel-spot-201601220840
git bisect bad a22ebd705e45aa37d1ceae3a89e557b08a03e2d3 # 09:43 0- 2 Merge 'linux-review/Iyappan-Subramanian/drivers-net-xgene-fix-extra-IRQ-issue/20160122-081154' into devel-spot-201601220840
git bisect bad 3cec603763516feb2a6ff10885e9deee36e11923 # 09:46 0- 1 Merge 'sparc/master' into devel-spot-201601220840
git bisect good c8a13705129a19fe5a9c7be3b2e331c7b56372ed # 09:53 238+ 0 0day base guard for 'devel-spot-201601220840'
git bisect bad 77a76b04d2be1c45b8fd746b7ef754525029340c # 10:12 3- 3 Merge tag 'media/v4.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
git bisect bad aee3bfa3307cd0da2126bdc0ea359dabea5ee8f7 # 10:22 7- 1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
git bisect bad 60b7eca1dc2ec066916b3b7ac6ad89bea13cb9af # 10:27 0- 1 Merge tag 'upstream-4.5-rc1' of git://git.infradead.org/linux-ubifs
git bisect bad 581dbc8bfc47ab16c69a67cc20dafea378ddbc60 # 10:37 132- 7 Merge tag 'pinctrl-v4.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
git bisect bad 4bd20db2c027eab7490e3c0466734738bef2dd24 # 10:42 0- 1 Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 5a6ea81b8f9ce2736759d256ac4d63be65751199 # 10:46 3- 2 perf stat record: Write stat events on record
git bisect bad 3e27c92081131738fa4d7dd71673aa6e8c24866d # 10:55 180- 4 perf evlist: Factor perf_evlist__(enable|disable) functions
git bisect bad 30862f2c5725c46afcfab5af710fdf5163bf0f81 # 11:02 0- 4 perf tools: Add 'perf config' command
git bisect good c4068f51d40df151a661a384ab1309b11d7f012e # 11:14 309+ 0 perf tools: Make perf_exec_path() always return malloc'd string
git bisect good 3cd99dfd1c87067fb28a19fee76500aed56d7c8f # 11:22 310+ 0 perf ui/gtk: Support flat callchains
git bisect bad 24cc12b17679f8e9046746f92fd377f589efc163 # 11:32 7- 4 perf/x86/intel/pt: Add interface to stop Intel PT logging
git bisect good 10013ebb5d7856c243541870f4e62fed68253e88 # 11:46 310+ 0 x86: Add an inlined __copy_from_user_nmi() variant
git bisect bad b16a5b52eb90d92b597257778e51e1fdc6423e64 # 11:51 1- 2 perf/x86: Add option to disable reading branch flags/cycles
git bisect bad 75925e1ad7f5a4e867bd14ff8e7f114ea1596434 # 11:54 0- 1 perf/x86: Optimize stack walk user accesses
# first bad commit: [75925e1ad7f5a4e867bd14ff8e7f114ea1596434] perf/x86: Optimize stack walk user accesses
git bisect good 10013ebb5d7856c243541870f4e62fed68253e88 # 12:06 910+ 0 x86: Add an inlined __copy_from_user_nmi() variant
# extra tests with DEBUG_INFO
git bisect bad 75925e1ad7f5a4e867bd14ff8e7f114ea1596434 # 12:10 5- 3 perf/x86: Optimize stack walk user accesses
# extra tests on HEAD of linux-devel/devel-spot-201601220840
git bisect bad f4b8c83d98967021814647eae93530a480700737 # 12:11 0- 2 0day head guard for 'devel-spot-201601220840'
# extra tests on tree/branch linus/master
git bisect bad 404a47410c26a115123885977053e9a1a4460929 # 12:12 6- 1 Merge branch 'uaccess' (batched user access infrastructure)
# extra tests with first bad commit reverted
git bisect good 9be1f4a10fcff6240a49b39ed70ddbc21f122e7e # 12:31 910+ 0 Revert "perf/x86: Optimize stack walk user accesses"
# extra tests on tree/branch linus/master
git bisect bad 404a47410c26a115123885977053e9a1a4460929 # 12:31 0- 22 Merge branch 'uaccess' (batched user access infrastructure)
# extra tests on tree/branch linux-next/master
git bisect bad 8771b7845205db05fbefd2d914cacd678cea6325 # 12:32 3- 2 Add linux-next specific files for 20160121
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
5 years, 7 months
[lkp] [sched] cd0dc98962: WARNING: CPU: 1 PID: 645 at kernel/sched/rt.c:1161 dequeue_rt_stack+0x2a1/0x300()
by kernel test robot
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git sched/core
commit cd0dc98962d9da44725431f5a465292955e93574 ("sched: Fix PI handling vs sched_setscheduler()")
+--------------------------------------------------+------------+------------+
| | 0923cd774a | cd0dc98962 |
+--------------------------------------------------+------------+------------+
| boot_successes | 12 | 4 |
| boot_failures | 0 | 7 |
| WARNING:at_kernel/sched/rt.c:#dequeue_rt_stack() | 0 | 7 |
| backtrace:_do_fork | 0 | 7 |
| backtrace:SyS_clone | 0 | 7 |
+--------------------------------------------------+------------+------------+
[ 18.125771] Key type id_resolver registered
[ 18.126809] Key type id_legacy registered
[ 18.469193] ------------[ cut here ]------------
[ 18.470790] WARNING: CPU: 1 PID: 645 at kernel/sched/rt.c:1161 dequeue_rt_stack+0x2a1/0x300()
[ 18.474113] Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver sg sd_mod sr_mod cdrom ata_generic pata_acpi crct10dif_pclmul crc32_pclmul crc32c_intel ppdev snd_pcm snd_timer snd soundcore aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr serio_raw virtio_scsi ata_piix i2c_piix4 libata floppy parport_pc parport acpi_cpufreq
[ 18.488019] CPU: 1 PID: 645 Comm: watchdog Not tainted 4.4.0-00534-gcd0dc98 #1
[ 18.491076] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 18.494243] ffffffff81bb0040 ffff88003fa73d90 ffffffff81413ab2 0000000000000000
[ 18.497581] ffff88003fa73dc8 ffffffff8107a086 ffff88003ec027c0 ffff880037217330
[ 18.501000] 0000000000000000 ffff88003ec0308c 0000000000017180 ffff88003fa73dd8
[ 18.504206] Call Trace:
[ 18.505607] [<ffffffff81413ab2>] dump_stack+0x4b/0x69
[ 18.507326] [<ffffffff8107a086>] warn_slowpath_common+0x86/0xc0
[ 18.509291] [<ffffffff8107a17a>] warn_slowpath_null+0x1a/0x20
[ 18.511117] [<ffffffff810b9e71>] dequeue_rt_stack+0x2a1/0x300
[ 18.513048] [<ffffffff810ba264>] enqueue_rt_entity+0x24/0x50
[ 18.514803] [<ffffffff810ba930>] enqueue_task_rt+0x30/0x60
[ 18.516582] [<ffffffff810a357e>] activate_task+0x5e/0x80
[ 18.518443] [<ffffffff810a57ec>] wake_up_new_task+0xec/0x1d0
[ 18.520254] [<ffffffff81079469>] _do_fork+0xd9/0x380
[ 18.522064] [<ffffffff810797b9>] SyS_clone+0x19/0x20
[ 18.523710] [<ffffffff818caeae>] entry_SYSCALL_64_fastpath+0x12/0x71
[ 18.525861] ---[ end trace 7604fe74e13e21d2 ]---
[ 18.527238] ------------[ cut here ]------------
Thanks,
Kernel Test Robot
5 years, 8 months
[x86_64] 966daf7529: BUG: KASAN: null-ptr-deref on address (null)
by kernel test robot
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.linaro.org/people/ard.biesheuvel/linux-arm kallsyms-text-relative
commit 966daf75296a953a511fccf0c47aa2f1ac710ae4
Author: Ard Biesheuvel <ard.biesheuvel(a)linaro.org>
AuthorDate: Wed Jan 20 09:30:24 2016 +0100
Commit: Ard Biesheuvel <ard.biesheuvel(a)linaro.org>
CommitDate: Wed Jan 20 16:09:40 2016 +0100
x86_64: enable text relative kallsyms for 64-bit targets
This enables the newly introduced text-relative kallsyms support when
building 64-bit targets. This cuts the size of the kallsyms address
table in half, reducing the memory footprint of the kernel .rodata
section by about 400 KB for a KALLSYMS_ALL build, and about 100 KB
reduction in compressed size. (with CONFIG_RELOCATABLE=y)
Signed-off-by: Ard Biesheuvel <ard.biesheuvel(a)linaro.org>
---
I tested this with my Ubuntu Wily box's config-4.2.0-23-generic, and
got the following results:
BEFORE:
=======
$ size vmlinux
text data bss dec hex filename
12972949 2213240 1482752 16668941 fe590d vmlinux
$ readelf -S .tmp_kallsyms2.o |less
There are 9 section headers, starting at offset 0x3e0788:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
...
[ 4] .rodata PROGBITS 0000000000000000 00000040
00000000001c7738 0000000000000000 A 0 0 8
[ 5] .rela.rodata RELA 0000000000000000 001c7950
0000000000218e38 0000000000000018 I 7 4 8
[ 6] .shstrtab STRTAB 0000000000000000 001c7778
0000000000000039 0000000000000000 0 0 1
$ ls -l arch/x86/boot/bzImage
-rw-rw-r-- 1 ard ard 6893168 Jan 20 09:36 arch/x86/boot/bzImage
AFTER:
======
$ size vmlinux
text data bss dec hex filename
12604501 2213240 1482752 16300493 f8b9cd vmlinux
$ readelf -S .tmp_kallsyms2.o |less
There are 8 section headers, starting at offset 0x16dd10:
Section Headers:
[Nr] Name Type Address Offset
Size EntSize Flags Link Info Align
...
[ 4] .rodata PROGBITS 0000000000000000 00000040
000000000016db20 0000000000000000 A 0 0 8
[ 5] .shstrtab STRTAB 0000000000000000 0016db60
0000000000000034 0000000000000000 0 0 1
...
$ ls -l arch/x86/boot/bzImage
-rw-rw-r-- 1 ard ard 6790224 Jan 19 22:24 arch/x86/boot/bzImage
+-------------------------------------------+------------+------------+-------------+
| | fa9dca0d3b | 966daf7529 | v4.4_012115 |
+-------------------------------------------+------------+------------+-------------+
| boot_successes | 88 | 0 | 0 |
| boot_failures | 4 | 26 | 21 |
| BUG:kernel_test_oversize | 4 | | |
| BUG:KASAN:null-ptr-deref_on_address(null) | 0 | 26 | 21 |
| BUG:unable_to_handle_kernel | 0 | 26 | 21 |
+-------------------------------------------+------------+------------+-------------+
[ 0.806715] Last level dTLB entries: 4KB 0, 2MB 0, 4MB 0, 1GB 0
[ 0.807672] CPU: Intel Core Processor (Haswell) (family: 0x6, model: 0x3c, stepping: 0x1)
[ 0.821821] ==================================================================
[ 0.823924] BUG: KASAN: null-ptr-deref on address (null)
[ 0.825885] Read of size 8 by task swapper/1
[ 0.827579] CPU: 0 PID: 1 Comm: swapper Not tainted 4.4.0-08954-g966daf7 #1
[ 0.829685] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 0.833083] 0000000000000000 ffff88000012f770 ffffffff812fd4e2 ffff88000012f7e8
[ 0.846778] ffffffff811c21a6 ffffffff81138b95 0000000000000246 74c4194b49ef3104
[ 0.848022] d0e81bfe4976e064 dc24e4cc4114b4aa 93bb9ec36e032306 1d7ecb59863dc991
[ 0.849210] Call Trace:
[ 0.849596] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 0.850823] IP:
Elapsed time: 10
qemu-system-x86_64 -enable-kvm -cpu Haswell,+smep,+smap -kernel /pkg/linux/x86_64-randconfig-r0-01211716/gcc-5/966daf75296a953a511fccf0c47aa2f1ac710ae4/vmlinuz-4.4.0-08954-g966daf7 -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 link=/kbuild-tests/run-queue/kvm/x86_64-randconfig-r0-01211716/linux-devel:devel-hourly-2016012115:966daf75296a953a511fccf0c47aa2f1ac710ae4:bisect-linux-5/.vmlinuz-966daf75296a953a511fccf0c47aa2f1ac710ae4-20160121185722-18-vp branch=linux-devel/devel-hourly-2016012115 BOOT_IMAGE=/pkg/linux/x86_64-randconfig-r0-01211716/gcc-5/966daf75296a953a511fccf0c47aa2f1ac710ae4/vmlinuz-4.4.0-08954-g966daf7 drbd.minor_count=8' -initrd /osimage/yocto/yocto-minimal-x86_64.cgz -m 256 -smp 1 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/sdg1/disk0-yocto-vp-2,media=disk,if=virtio -drive file=/fs/sdg1/disk1-yocto-vp-2,media=disk,if=virtio -drive file=/fs/sdg1/disk2-yocto-vp-2,media=disk,if=virtio -drive file=/fs/sdg1/disk3-yocto-vp-2,media=disk,if=virtio -drive file=/fs/sdg1/disk4-yocto-vp-2,media=disk,if=virtio -drive file=/fs/sdg1/disk5-yocto-vp-2,media=disk,if=virtio -drive file=/fs/sdg1/disk6-yocto-vp-2,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-yocto-vp-2 -serial file:/dev/shm/kboot/serial-yocto-vp-2 -daemonize -display none -monitor null
git bisect start 3cad51a59ef1e418d3dfa1612f111984e2452910 afd2ff9b7e1b367172f18ba7f693dfb62bdcb2dc --
git bisect good e0b463cdd9f107e2846192d2d36b7c574fa647c2 # 18:00 22+ 24 Merge 'linux-review/Duc-Dang/mailbox-Add-support-for-APM-X-Gene-platform-mailbox-driver/20160116-110535' into devel-hourly-2016012115
git bisect good dcce31adbbcece70caf30019d6cb07bb7db24b60 # 18:04 22+ 22 Merge 'linux-review/Lubomir-Rintel/ifb-make-device-count-build-time-configurable/20160112-233913' into devel-hourly-2016012115
git bisect good a4b368a9fc50e70cc281c5085f987681b9f8581f # 18:09 22+ 22 Merge 'linux-review/Dan-Carpenter/isdn-act200-fix-MODULE_PARM_DESC-typo/20160108-191146' into devel-hourly-2016012115
git bisect good 78452142051fae332b40681de60da864cdd1919e # 18:13 20+ 20 Merge 'linux-review/Greg-Hackmann/pstore-ram-add-Device-Tree-bindings/20160108-074431' into devel-hourly-2016012115
git bisect good 83780e448c6540eec527bb75ccccb2c0c8ded6b3 # 18:18 22+ 24 Merge 'linux-review/Jani-Nikula/drm-i915-add-onoff-utility-function/20160114-185537' into devel-hourly-2016012115
git bisect good f3493886a56038c79a4bc699210827f300c73c7e # 18:24 22+ 22 Merge 'linux-review/ville-syrjala-linux-intel-com/drm-i915-Don-t-reject-primayr-plane-windowing-with-color-keying-enabled-on-SKL/20160116-024843' into devel-hourly-2016012115
git bisect bad 5eeee39923fe98169599272499a07ad889503c89 # 18:27 0- 22 Merge 'linux-review/Shawn-Lin/mmc-dw_mmc-remove-struct-block_settings/20160121-161325' into devel-hourly-2016012115
git bisect good b81c78fbb60710014521b788e6359eb8e0c9e7d1 # 18:32 22+ 22 Merge 'linux-review/Francisco-Jerez/drm-i915-Make-sure-DC-writes-are-coherent-on-flush/20160114-110140' into devel-hourly-2016012115
git bisect good c90a11622a7d1d74e150d72d80a48dccbf6815f3 # 18:36 22+ 24 Merge 'linux-review/Michal-Hocko/zoran-do-not-use-kmalloc-for-memory-mapped-to-userspace/20160121-163158' into devel-hourly-2016012115
git bisect bad 07116ab96a20503edde9915166029731dc334c09 # 18:40 0- 22 Merge 'ard.biesheuvel/kallsyms-text-relative' into devel-hourly-2016012115
git bisect good fa9dca0d3b3c9106152b22328da79da37e7a0dac # 18:48 22+ 2 s390: enable text relative kallsyms
git bisect bad f30a7e632ba2d64edbeb9ff27858045e7cf0608b # 18:51 0- 24 kallsyms: enable text relative kallsyms by default
git bisect bad 966daf75296a953a511fccf0c47aa2f1ac710ae4 # 18:55 0- 17 x86_64: enable text relative kallsyms for 64-bit targets
# first bad commit: [966daf75296a953a511fccf0c47aa2f1ac710ae4] x86_64: enable text relative kallsyms for 64-bit targets
git bisect good fa9dca0d3b3c9106152b22328da79da37e7a0dac # 18:57 60+ 4 s390: enable text relative kallsyms
# extra tests with DEBUG_INFO
git bisect bad 966daf75296a953a511fccf0c47aa2f1ac710ae4 # 19:05 0- 34 x86_64: enable text relative kallsyms for 64-bit targets
# extra tests on HEAD of linux-devel/devel-hourly-2016012115
git bisect bad 3cad51a59ef1e418d3dfa1612f111984e2452910 # 19:05 0- 21 0day head guard for 'devel-hourly-2016012115'
# extra tests on tree/branch ard.biesheuvel/kallsyms-text-relative
git bisect bad 3ad6bb80fca2d08b2bb1b55b46ce7e2658ddef27 # 19:19 0- 49 kallsyms: add support for relative offsets in kallsyms address table
# extra tests with first bad commit reverted
git bisect bad b422129fce344870947df2c31eb2d168bbb60f91 # 19:29 0- 6 Revert "x86_64: enable text relative kallsyms for 64-bit targets"
# extra tests on tree/branch linus/master
git bisect good 30f05309bde49295e02e45c7e615f73aa4e0ccc2 # 19:37 66+ 2 Merge tag 'pm+acpi-4.5-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
# extra tests on tree/branch linux-next/master
git bisect good 8771b7845205db05fbefd2d914cacd678cea6325 # 20:09 60+ 4 Add linux-next specific files for 20160121
This script may reproduce the error.
----------------------------------------------------------------------------
#!/bin/bash
kernel=$1
kvm=(
qemu-system-x86_64
-enable-kvm
-cpu Haswell,+smep,+smap
-kernel $kernel
-m 256
-smp 1
-device e1000,netdev=net0
-netdev user,id=net0
-boot order=nc
-no-reboot
-watchdog i6300esb
-rtc base=localtime
-serial stdio
-display none
-monitor null
)
append=(
hung_task_panic=1
earlyprintk=ttyS0,115200
systemd.log_level=err
debug
apic=debug
sysrq_always_enabled
rcupdate.rcu_cpu_stall_timeout=100
panic=-1
softlockup_panic=1
nmi_watchdog=panic
oops=panic
load_ramdisk=2
prompt_ramdisk=0
console=ttyS0,115200
console=tty0
vga=normal
root=/dev/ram0
rw
drbd.minor_count=8
)
"${kvm[@]}" --append "${append[*]}"
----------------------------------------------------------------------------
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
5 years, 8 months
[lkp] [mm/vmstat] 6cdb18ad98: -8.5% will-it-scale.per_thread_ops
by kernel test robot
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit 6cdb18ad98a49f7e9b95d538a0614cde827404b8 ("mm/vmstat: fix overflow in mod_zone_page_state()")
=========================================================================================
compiler/cpufreq_governor/kconfig/rootfs/tbox_group/test/testcase:
gcc-4.9/performance/x86_64-rhel/debian-x86_64-2015-02-07.cgz/ivb42/pread1/will-it-scale
commit:
cc28d6d80f6ab494b10f0e2ec949eacd610f66e3
6cdb18ad98a49f7e9b95d538a0614cde827404b8
cc28d6d80f6ab494 6cdb18ad98a49f7e9b95d538a0
---------------- --------------------------
%stddev %change %stddev
\ | \
2733943 ± 0% -8.5% 2502129 ± 0% will-it-scale.per_thread_ops
3410 ± 0% -2.0% 3343 ± 0% will-it-scale.time.system_time
340.08 ± 0% +19.7% 406.99 ± 0% will-it-scale.time.user_time
69882822 ± 2% -24.3% 52926191 ± 5% cpuidle.C1-IVT.time
340.08 ± 0% +19.7% 406.99 ± 0% time.user_time
491.25 ± 6% -17.7% 404.25 ± 7% numa-vmstat.node0.nr_alloc_batch
2799 ± 20% -36.6% 1776 ± 0% numa-vmstat.node0.nr_mapped
630.00 ±140% +244.4% 2169 ± 1% numa-vmstat.node1.nr_inactive_anon
6440 ± 11% -15.5% 5440 ± 16% numa-vmstat.node1.nr_slab_reclaimable
11204 ± 20% -36.6% 7106 ± 0% numa-meminfo.node0.Mapped
1017 ±173% +450.3% 5598 ± 15% numa-meminfo.node1.AnonHugePages
2521 ±140% +244.1% 8678 ± 1% numa-meminfo.node1.Inactive(anon)
25762 ± 11% -15.5% 21764 ± 16% numa-meminfo.node1.SReclaimable
70103 ± 9% -9.8% 63218 ± 9% numa-meminfo.node1.Slab
2.29 ± 3% +32.8% 3.04 ± 4% perf-profile.cycles-pp.atime_needs_update.touch_atime.shmem_file_read_iter.__vfs_read.vfs_read
1.10 ± 3% -27.4% 0.80 ± 5% perf-profile.cycles-pp.current_fs_time.atime_needs_update.touch_atime.shmem_file_read_iter.__vfs_read
2.33 ± 2% -13.0% 2.02 ± 3% perf-profile.cycles-pp.fput.entry_SYSCALL_64_fastpath
0.89 ± 2% +29.6% 1.15 ± 7% perf-profile.cycles-pp.fsnotify.vfs_read.sys_pread64.entry_SYSCALL_64_fastpath
2.85 ± 2% +45.4% 4.14 ± 5% perf-profile.cycles-pp.touch_atime.shmem_file_read_iter.__vfs_read.vfs_read.sys_pread64
63939 ± 0% +17.9% 75370 ± 15% sched_debug.cfs_rq:/.exec_clock.25
72.50 ± 73% -63.1% 26.75 ± 19% sched_debug.cfs_rq:/.load_avg.1
34.00 ± 62% -61.8% 13.00 ± 12% sched_debug.cfs_rq:/.load_avg.14
18.00 ± 11% -11.1% 16.00 ± 10% sched_debug.cfs_rq:/.load_avg.20
14.75 ± 41% +122.0% 32.75 ± 26% sched_debug.cfs_rq:/.load_avg.25
278.88 ± 11% +18.8% 331.25 ± 7% sched_debug.cfs_rq:/.load_avg.max
51.89 ± 11% +13.6% 58.97 ± 4% sched_debug.cfs_rq:/.load_avg.stddev
7.25 ± 5% +255.2% 25.75 ± 53% sched_debug.cfs_rq:/.runnable_load_avg.25
28.50 ± 1% +55.3% 44.25 ± 46% sched_debug.cfs_rq:/.runnable_load_avg.7
72.50 ± 73% -63.1% 26.75 ± 19% sched_debug.cfs_rq:/.tg_load_avg_contrib.1
34.00 ± 62% -61.8% 13.00 ± 12% sched_debug.cfs_rq:/.tg_load_avg_contrib.14
18.00 ± 11% -11.1% 16.00 ± 10% sched_debug.cfs_rq:/.tg_load_avg_contrib.20
14.75 ± 41% +122.0% 32.75 ± 25% sched_debug.cfs_rq:/.tg_load_avg_contrib.25
279.29 ± 11% +19.1% 332.67 ± 7% sched_debug.cfs_rq:/.tg_load_avg_contrib.max
52.01 ± 11% +13.8% 59.18 ± 4% sched_debug.cfs_rq:/.tg_load_avg_contrib.stddev
359.50 ± 6% +41.5% 508.75 ± 22% sched_debug.cfs_rq:/.util_avg.25
206.25 ± 16% -13.1% 179.25 ± 11% sched_debug.cfs_rq:/.util_avg.40
688.75 ± 1% +18.5% 816.00 ± 1% sched_debug.cfs_rq:/.util_avg.7
953467 ± 1% -17.9% 782518 ± 10% sched_debug.cpu.avg_idle.5
9177 ± 43% +73.9% 15957 ± 29% sched_debug.cpu.nr_switches.13
7365 ± 19% -35.4% 4755 ± 11% sched_debug.cpu.nr_switches.20
12203 ± 28% -62.2% 4608 ± 9% sched_debug.cpu.nr_switches.22
1868 ± 49% -51.1% 913.50 ± 27% sched_debug.cpu.nr_switches.27
2546 ± 56% -70.0% 763.00 ± 18% sched_debug.cpu.nr_switches.28
3003 ± 78% -77.9% 663.00 ± 18% sched_debug.cpu.nr_switches.33
1820 ± 19% +68.0% 3058 ± 33% sched_debug.cpu.nr_switches.8
-4.00 ±-35% -156.2% 2.25 ± 85% sched_debug.cpu.nr_uninterruptible.11
4.00 ±133% -187.5% -3.50 ±-24% sched_debug.cpu.nr_uninterruptible.17
1.75 ± 74% -214.3% -2.00 ±-127% sched_debug.cpu.nr_uninterruptible.25
0.00 ± 2% +Inf% 4.00 ± 39% sched_debug.cpu.nr_uninterruptible.26
2.50 ± 44% -110.0% -0.25 ±-591% sched_debug.cpu.nr_uninterruptible.27
1.33 ±154% -287.5% -2.50 ±-72% sched_debug.cpu.nr_uninterruptible.32
-1.00 ±-244% -250.0% 1.50 ±251% sched_debug.cpu.nr_uninterruptible.45
3.50 ± 82% -135.7% -1.25 ±-66% sched_debug.cpu.nr_uninterruptible.46
-4.50 ±-40% -133.3% 1.50 ±242% sched_debug.cpu.nr_uninterruptible.6
-3.00 ±-78% -433.3% 10.00 ±150% sched_debug.cpu.nr_uninterruptible.7
10124 ± 39% +65.8% 16783 ± 23% sched_debug.cpu.sched_count.13
12833 ± 23% -54.6% 5823 ± 32% sched_debug.cpu.sched_count.22
1934 ± 48% -49.8% 971.00 ± 26% sched_debug.cpu.sched_count.27
3065 ± 76% -76.2% 728.25 ± 16% sched_debug.cpu.sched_count.33
2098 ± 24% +664.1% 16030 ±126% sched_debug.cpu.sched_count.5
4653 ± 33% +83.4% 8536 ± 25% sched_debug.cpu.sched_goidle.15
5061 ± 41% -61.1% 1968 ± 13% sched_debug.cpu.sched_goidle.22
834.75 ± 57% -60.2% 332.00 ± 35% sched_debug.cpu.sched_goidle.27
719.00 ± 71% -63.3% 264.00 ± 19% sched_debug.cpu.sched_goidle.28
943.25 ±115% -76.3% 223.25 ± 21% sched_debug.cpu.sched_goidle.33
2520 ± 26% +112.4% 5353 ± 19% sched_debug.cpu.ttwu_count.13
5324 ± 22% -49.7% 2679 ± 45% sched_debug.cpu.ttwu_count.22
2926 ± 38% +231.1% 9690 ± 37% sched_debug.cpu.ttwu_count.23
277.25 ± 18% +166.7% 739.50 ± 83% sched_debug.cpu.ttwu_count.27
1247 ± 61% -76.6% 292.25 ± 11% sched_debug.cpu.ttwu_count.28
751.75 ± 22% +183.9% 2134 ± 9% sched_debug.cpu.ttwu_count.3
6405 ± 97% -75.9% 1542 ± 48% sched_debug.cpu.ttwu_count.41
5582 ±104% -76.2% 1327 ± 55% sched_debug.cpu.ttwu_count.43
3201 ± 26% -75.1% 796.75 ± 18% sched_debug.cpu.ttwu_local.22
ivb42: Ivytown Ivy Bridge-EP
Memory: 64G
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,
Ying Huang
5 years, 8 months
[lkp] [POWER/runtime] dad5d26336: WARNING: CPU: 1 PID: 33 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x92/0xbe()
by kernel test robot
FYI, we noticed the below changes on
https://github.com/0day-ci/linux Zhaoyang-Huang/POWER-runtime-refining-the-rpm_suspend-function/20160121-111604
commit dad5d263363749f1dc36854743adb0d1b8f86184 ("POWER/runtime: refining the rpm_suspend function")
+------------------------------------------------------------+------------+------------+
| | dc7a021ccc | dad5d26336 |
+------------------------------------------------------------+------------+------------+
| boot_successes | 20 | 0 |
| boot_failures | 0 | 7 |
| WARNING:at_kernel/locking/lockdep.c:#lockdep_trace_alloc() | 0 | 7 |
| BUG:kernel_boot_hang | 0 | 1 |
| backtrace:pm_runtime_work | 0 | 7 |
| RIP:csd_lock_wait | 0 | 6 |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 0 | 6 |
| backtrace:kmem_cache_create | 0 | 6 |
| backtrace:usbip_host_init | 0 | 6 |
| backtrace:kernel_init_freeable | 0 | 6 |
+------------------------------------------------------------+------------+------------+
[ 9.035135] hub 1-0:1.0: USB hub found
[ 9.035825] hub 1-0:1.0: 8 ports detected
[ 9.038948] ------------[ cut here ]------------
[ 9.039645] WARNING: CPU: 1 PID: 33 at kernel/locking/lockdep.c:2755 lockdep_trace_alloc+0x92/0xbe()
[ 9.041086] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
[ 9.041708] Modules linked in:
[ 9.042543] CPU: 1 PID: 33 Comm: kworker/1:1 Not tainted 4.4.0-03451-gdad5d26 #1
[ 9.043616] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 9.044892] Workqueue: pm pm_runtime_work
[ 9.045606] 0000000000000000 ffff880032097c08 ffffffff8174680d ffff880032097c50
[ 9.046929] ffff880032097c40 ffffffff810de073 ffffffff8111c5a4 0000000000000046
[ 9.048257] 00000000024000c0 ffff88001cfc0808 00000000024000c0 ffff880032097ca8
[ 9.049575] Call Trace:
[ 9.050091] [<ffffffff8174680d>] dump_stack+0x4b/0x63
[ 9.050818] [<ffffffff810de073>] warn_slowpath_common+0x99/0xb2
[ 9.051661] [<ffffffff8111c5a4>] ? lockdep_trace_alloc+0x92/0xbe
[ 9.052481] [<ffffffff810de0d4>] warn_slowpath_fmt+0x48/0x50
[ 9.053291] [<ffffffff8111c0cb>] ? lock_release+0x1a5/0x41a
[ 9.054068] [<ffffffff8111c5a4>] lockdep_trace_alloc+0x92/0xbe
[ 9.054872] [<ffffffff811f6067>] kmem_cache_alloc_trace+0x36/0x123
[ 9.055700] [<ffffffff81b8f1dc>] rpm_suspend+0x2c/0x18f
[ 9.056432] [<ffffffff81b8f86f>] rpm_idle+0x1c5/0x241
[ 9.057147] [<ffffffff81b90435>] pm_runtime_work+0x5e/0x94
[ 9.057904] [<ffffffff810f3c81>] process_one_work+0x249/0x482
[ 9.058692] [<ffffffff810f43a9>] worker_thread+0x209/0x2c2
[ 9.059452] [<ffffffff810f41a0>] ? rescuer_thread+0x2b3/0x2b3
[ 9.060235] [<ffffffff810f92e5>] kthread+0xc5/0xcd
[ 9.060915] [<ffffffff810f9220>] ? kthread_parkme+0x24/0x24
[ 9.061770] [<ffffffff82e8b8df>] ret_from_fork+0x3f/0x70
[ 9.062518] [<ffffffff810f9220>] ? kthread_parkme+0x24/0x24
[ 9.063290] ---[ end trace 94ed5187e23a2b81 ]---
[ 9.067333] vhci_hcd: USB/IP 'Virtual' Host Controller (VHCI) Driver v1.0.0
Thanks,
Kernel Test Robot
5 years, 8 months
[lkp] [rpm] 1b018e0756: INFO: rcu_preempt detected stalls on CPUs/tasks:
by kernel test robot
FYI, we noticed the below changes on
https://github.com/0day-ci/linux Zhaoyang-Huang/rpm-refining-the-rpm_suspend-function/20160120-160501
commit 1b018e075699994eb530a5f19f1acab2a926f84b ("rpm: refining the rpm_suspend function")
+------------------------------------------------+------------+------------+
| | dc7a021ccc | 1b018e0756 |
+------------------------------------------------+------------+------------+
| boot_successes | 40 | 0 |
| boot_failures | 0 | 37 |
| INFO:rcu_preempt_detected_stalls_on_CPUs/tasks | 0 | 13 |
| BUG:kernel_boot_hang | 0 | 37 |
| backtrace:schedule_timeout | 0 | 2 |
+------------------------------------------------+------------+------------+
[ 6.040069] usb usb1: SerialNumber: dummy_hcd.0
[ 6.041207] hub 1-0:1.0: USB hub found
[ 6.041745] hub 1-0:1.0: 1 port detected
[ 106.049840] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 106.053605] Task dump for CPU 1:
[ 106.054024] kworker/1:1 R running task 14368 29 2 0x00000000
[ 106.054968] Workqueue: pm pm_runtime_work
[ 106.055509] ffffffff8348aec8 ffffffff82d568f0 0000000000000000 ffffffff822b037b
[ 106.056527] 0000000000000001 0000000000000000 ffff8800121029c0 ffff880012bd50c0
[ 106.057553] ffff88001211c440 ffff88001211c440 ffff8800121029f0 ffff880012153e48
[ 106.058570] Call Trace:
[ 106.058897] [<ffffffff8108a58d>] ? worker_thread+0x28c/0x37e
[ 106.059640] [<ffffffff8108a301>] ? process_scheduled_works+0x2e/0x2e
[ 106.060467] [<ffffffff8108f328>] ? kthread+0xf6/0xfe
[ 106.061117] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 106.061869] [<ffffffff81c5261f>] ? ret_from_fork+0x3f/0x70
[ 106.062589] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 106.063337] rcu_preempt kthread starved for 25002 jiffies! g18446744073709551426 c18446744073709551425 f0x0 RCU_GP_WAIT_FQS(3) ->state=0x1
[ 106.064918] rcu_preempt S ffff88000012fd08 14696 7 2 0x00000000
[ 106.065868] ffff88000012fd08 ffff880000068000 ffff8800001216c0 ffff880000130000
[ 106.066886] ffff880012bcd980 ffff88000012fd40 ffff8800001216c0 0000000000000001
[ 106.067911] ffff88000012fd20 ffffffff81c4d5d7 00000000fffee08c ffff88000012fdc0
[ 106.068923] Call Trace:
[ 106.069247] [<ffffffff81c4d5d7>] schedule+0x83/0x98
[ 106.069890] [<ffffffff81c50dd6>] schedule_timeout+0x144/0x173
[ 106.070645] [<ffffffff810c25e1>] ? cascade+0x47/0x47
[ 106.071299] [<ffffffff810bff19>] rcu_gp_kthread+0x574/0x8d7
[ 106.072033] [<ffffffff810bff19>] ? rcu_gp_kthread+0x574/0x8d7
[ 106.072787] [<ffffffff810a6ce8>] ? __wake_up_common+0x7c/0x7c
[ 106.073537] [<ffffffff810bf9a5>] ? force_qs_rnp+0x164/0x164
[ 106.074261] [<ffffffff8108f328>] kthread+0xf6/0xfe
[ 106.074895] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 106.075645] [<ffffffff81c5261f>] ret_from_fork+0x3f/0x70
[ 106.076337] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 406.069839] INFO: rcu_preempt detected stalls on CPUs/tasks:
[ 406.073733] Task dump for CPU 1:
[ 406.074151] kworker/1:1 R running task 14368 29 2 0x00000000
[ 406.075103] Workqueue: pm pm_runtime_work
[ 406.075641] ffffffff8348aec8 ffffffff82d568f0 0000000000000000 ffffffff822b037b
[ 406.076652] 0000000000000001 0000000000000000 ffff8800121029c0 ffff880012bd50c0
[ 406.077674] ffff88001211c440 ffff88001211c440 ffff8800121029f0 ffff880012153e48
[ 406.078677] Call Trace:
[ 406.079001] [<ffffffff8108a58d>] ? worker_thread+0x28c/0x37e
[ 406.079741] [<ffffffff8108a301>] ? process_scheduled_works+0x2e/0x2e
[ 406.080565] [<ffffffff8108f328>] ? kthread+0xf6/0xfe
[ 406.081710] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 406.082449] [<ffffffff81c5261f>] ? ret_from_fork+0x3f/0x70
[ 406.083162] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 406.083914] rcu_preempt kthread starved for 100007 jiffies! g18446744073709551426 c18446744073709551425 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x100
[ 406.085516] rcu_preempt W ffff88000012fd08 14696 7 2 0x00000000
[ 406.086455] ffff88000012fd08 ffff880000068000 ffff8800001216c0 ffff880000130000
[ 406.087461] ffff880012bcd980 ffff88000012fd40 ffff8800001216c0 0000000000000001
[ 406.088471] ffff88000012fd20 ffffffff81c4d5d7 00000000fffee08c ffff88000012fdc0
[ 406.089480] Call Trace:
[ 406.089804] [<ffffffff81c4d5d7>] schedule+0x83/0x98
[ 406.090435] [<ffffffff81c50dd6>] schedule_timeout+0x144/0x173
[ 406.091180] [<ffffffff810c25e1>] ? cascade+0x47/0x47
[ 406.091832] [<ffffffff810bff19>] rcu_gp_kthread+0x574/0x8d7
[ 406.092558] [<ffffffff810bff19>] ? rcu_gp_kthread+0x574/0x8d7
[ 406.093300] [<ffffffff810a6ce8>] ? __wake_up_common+0x7c/0x7c
[ 406.094047] [<ffffffff810bf9a5>] ? force_qs_rnp+0x164/0x164
[ 406.094779] [<ffffffff8108f328>] kthread+0xf6/0xfe
[ 406.095398] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
[ 406.096144] [<ffffffff81c5261f>] ret_from_fork+0x3f/0x70
[ 406.096834] [<ffffffff8108f232>] ? __kthread_parkme+0x82/0x82
Elapsed time: 440
BUG: kernel boot hang
qemu-system-x86_64 -enable-kvm -cpu Nehalem -kernel /pkg/linux/x86_64-acpi-redef/gcc-5/1b018e075699994eb530a5f19f1acab2a926f84b/vmlinuz-4.4.0-03451-g1b018e0 -append 'root=/dev/ram0 user=lkp job=/lkp/scheduled/vm-intel12-yocto-x86_64-7/bisect_boot-1-yocto-minimal-x86_64.cgz-x86_64-acpi-redef-1b018e075699994eb530a5f19f1acab2a926f84b-20160121-24106-uy1lg5-0.yaml ARCH=x86_64 kconfig=x86_64-acpi-redef branch=linux-devel/devel-spot-201601210155 commit=1b018e075699994eb530a5f19f1acab2a926f84b BOOT_IMAGE=/pkg/linux/x86_64-acpi-redef/gcc-5/1b018e075699994eb530a5f19f1acab2a926f84b/vmlinuz-4.4.0-03451-g1b018e0 max_uptime=600 RESULT_ROOT=/result/boot/1/vm-intel12-yocto-x86_64/yocto-minimal-x86_64.cgz/x86_64-acpi-redef/gcc-5/1b018e075699994eb530a5f19f1acab2a926f84b/3 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-intel12-yocto-x86_64-7::dhcp drbd.minor_count=8' -initrd /fs/KVM/initrd-vm-intel12-yocto-x86_64-7 -m 320 -smp 2 -device e1000,netdev=net0 -netdev user,id=net0 -boot order=nc -no-reboot -watchdog i6300esb -rtc base=localtime -drive file=/fs/KVM/disk0-vm-intel12-yocto-x86_64-7,media=disk,if=virtio -drive file=/fs/KVM/disk1-vm-intel12-yocto-x86_64-7,media=disk,if=virtio -pidfile /dev/shm/kboot/pid-vm-intel12-yocto-x86_64-7 -serial file:/dev/shm/kboot/serial-vm-intel12-yocto-x86_64-7 -daemonize -display none -monitor null
Thanks,
Kernel Test Robot
5 years, 8 months
[lkp] [mm, vmscan] ab543c4e6c: BUG: unable to handle kernel
by kernel test robot
FYI, we noticed the below changes on
https://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma mm-vmscan-node-lru-v2r16
commit ab543c4e6ce43e2225a598e2d96f5b0ec04dbd73 ("mm, vmscan: Move LRU lists to node")
[ 7.976872] Loading compiled-in X.509 certificates
[ 8.057169] Unregister pv shared memory for cpu 0
[ 8.057169] Unregister pv shared memory for cpu 0
[ 8.121704] BUG: unable to handle kernel
[ 8.121704] BUG: unable to handle kernel paging requestpaging request at 00000000001d7661
at 00000000001d7661
[ 8.123958] IP:
[ 8.123958] IP: [<ffffffff8d7b7ae7>] cpu_vm_stats_fold+0xb7/0x110
[<ffffffff8d7b7ae7>] cpu_vm_stats_fold+0xb7/0x110
[ 8.125952] PGD 0
[ 8.125952] PGD 0
[ 8.126619] Oops: 0000 [#1]
[ 8.126619] Oops: 0000 [#1] PREEMPT PREEMPT SMP SMP DEBUG_PAGEALLOC DEBUG_PAGEALLOC
[ 8.128395] Modules linked in:
[ 8.128395] Modules linked in:
[ 8.129442] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.4.0-08955-gab543c4 #1
[ 8.129442] CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.4.0-08955-gab543c4 #1
[ 8.131672] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 8.131672] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014
[ 8.134471] task: ffff88000029c040 ti: ffff8800002a0000 task.ti: ffff8800002a0000
[ 8.134471] task: ffff88000029c040 ti: ffff8800002a0000 task.ti: ffff8800002a0000
[ 8.136803] RIP: 0010:[<ffffffff8d7b7ae7>]
[ 8.136803] RIP: 0010:[<ffffffff8d7b7ae7>] [<ffffffff8d7b7ae7>] cpu_vm_stats_fold+0xb7/0x110
[<ffffffff8d7b7ae7>] cpu_vm_stats_fold+0xb7/0x110
[ 8.139518] RSP: 0000:ffff8800002a3bf8 EFLAGS: 00010282
[ 8.139518] RSP: 0000:ffff8800002a3bf8 EFLAGS: 00010282
[ 8.141221] RAX: ffffffff8de8e180 RBX: 00000000001d7660 RCX: 00000000001d7661
[ 8.141221] RAX: ffffffff8de8e180 RBX: 00000000001d7660 RCX: 00000000001d7661
[ 8.143435] RDX: ffffffff8de8f848 RSI: ffffffff8de8e808 RDI: ffffffff8de8ef00
[ 8.143435] RDX: ffffffff8de8f848 RSI: ffffffff8de8e808 RDI: ffffffff8de8ef00
[ 8.145694] RBP: ffff8800002a3c70 R08: ffffffff8de8f888 R09: 0000000000000002
[ 8.145694] RBP: ffff8800002a3c70 R08: ffffffff8de8f888 R09: 0000000000000002
[ 8.147921] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800002a3bfc
[ 8.147921] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800002a3bfc
[ 8.150179] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8de42f00
[ 8.150179] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8de42f00
[ 8.152400] FS: 0000000000000000(0000) GS:ffff880014400000(0000) knlGS:0000000000000000
[ 8.152400] FS: 0000000000000000(0000) GS:ffff880014400000(0000) knlGS:0000000000000000
[ 8.154919] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8.154919] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[ 8.156709] CR2: 00000000001d7661 CR3: 000000000ddbb000 CR4: 00000000000006a0
[ 8.156709] CR2: 00000000001d7661 CR3: 000000000ddbb000 CR4: 00000000000006a0
[ 8.158977] Stack:
[ 8.158977] Stack:
[ 8.159619] fffffffe002a3c18
[ 8.159619] fffffffe002a3c18 00000000fffffffe 00000000fffffffe 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 8.164052] 0000000000000000
[ 8.164052] 0000000000000000 0000000000000002 0000000000000002 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 8.166493] 0000000000000000
[ 8.166493] 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
[ 8.168808] Call Trace:
[ 8.168808] Call Trace:
[ 8.169543] [<ffffffff8d79afad>] page_alloc_cpu_notify+0x2d/0x40
[ 8.169543] [<ffffffff8d79afad>] page_alloc_cpu_notify+0x2d/0x40
[ 8.171243] [<ffffffff8d6cf002>] notifier_call_chain+0x92/0xc0
[ 8.171243] [<ffffffff8d6cf002>] notifier_call_chain+0x92/0xc0
[ 8.173006] [<ffffffff8d6cf039>] __raw_notifier_call_chain+0x9/0x10
[ 8.173006] [<ffffffff8d6cf039>] __raw_notifier_call_chain+0x9/0x10
[ 8.176126] [<ffffffff8d6a7e9e>] cpu_notify_nofail+0x1e/0x50
[ 8.176126] [<ffffffff8d6a7e9e>] cpu_notify_nofail+0x1e/0x50
[ 8.177753] [<ffffffff8d6a8295>] _cpu_down+0x245/0x330
[ 8.177753] [<ffffffff8d6a8295>] _cpu_down+0x245/0x330
[ 8.179201] [<ffffffff8d71f100>] ? __call_rcu+0x460/0x460
[ 8.179201] [<ffffffff8d71f100>] ? __call_rcu+0x460/0x460
[ 8.182691] [<ffffffff8d71f160>] ? call_rcu_bh+0x20/0x20
[ 8.182691] [<ffffffff8d71f160>] ? call_rcu_bh+0x20/0x20
[ 8.184357] [<ffffffff8d71a530>] ? __rcu_read_unlock+0x120/0x120
[ 8.184357] [<ffffffff8d71a530>] ? __rcu_read_unlock+0x120/0x120
[ 8.186075] [<ffffffff8daf7763>] ? wait_for_common+0x103/0x1b0
[ 8.186075] [<ffffffff8daf7763>] ? wait_for_common+0x103/0x1b0
[ 8.187693] [<ffffffff8d71a530>] ? __rcu_read_unlock+0x120/0x120
[ 8.187693] [<ffffffff8d71a530>] ? __rcu_read_unlock+0x120/0x120
[ 8.189594] [<ffffffff8daf7763>] ? wait_for_common+0x103/0x1b0
[ 8.189594] [<ffffffff8daf7763>] ? wait_for_common+0x103/0x1b0
[ 8.191439] [<ffffffff8d6a83b1>] cpu_down+0x31/0x50
[ 8.191439] [<ffffffff8d6a83b1>] cpu_down+0x31/0x50
[ 8.192908] [<ffffffff8d60ca98>] _debug_hotplug_cpu+0x78/0xb0
[ 8.192908] [<ffffffff8d60ca98>] _debug_hotplug_cpu+0x78/0xb0
[ 8.194545] [<ffffffff8e0eefe7>] ? topology_init+0x39/0x39
[ 8.194545] [<ffffffff8e0eefe7>] ? topology_init+0x39/0x39
[ 8.196089] [<ffffffff8e0eeff4>] debug_hotplug_cpu+0xd/0x11
[ 8.196089] [<ffffffff8e0eeff4>] debug_hotplug_cpu+0xd/0x11
[ 8.197902] [<ffffffff8d6003b5>] do_one_initcall+0x85/0x1e0
[ 8.197902] [<ffffffff8d6003b5>] do_one_initcall+0x85/0x1e0
[ 8.199669] [<ffffffff8e0e91ce>] kernel_init_freeable+0x10e/0x18f
[ 8.199669] [<ffffffff8e0e91ce>] kernel_init_freeable+0x10e/0x18f
[ 8.201464] [<ffffffff8daeeb80>] ? rest_init+0x140/0x140
[ 8.201464] [<ffffffff8daeeb80>] ? rest_init+0x140/0x140
[ 8.202954] [<ffffffff8daeeb89>] kernel_init+0x9/0xd0
[ 8.202954] [<ffffffff8daeeb89>] kernel_init+0x9/0xd0
[ 8.204414] [<ffffffff8dafe06f>] ret_from_fork+0x3f/0x70
[ 8.204414] [<ffffffff8dafe06f>] ret_from_fork+0x3f/0x70
[ 8.206143] [<ffffffff8daeeb80>] ? rest_init+0x140/0x140
[ 8.206143] [<ffffffff8daeeb80>] ? rest_init+0x140/0x140
[ 8.207831] Code:
[ 8.207831] Code: e5 e5 ff ff ff ff 48 48 85 85 c0 c0 75 75 ad ad e8 e8 77 77 e5 e5 ff ff ff ff 48 48 85 85 c0 c0 74 74 43 43 48 48 8b 8b 98 98 c0 c0 16 16 00 00 00 00 48 48 8d 8d 90 90 c8 c8 16 16 00 00 00 00 4c 4c 8d 8d 80 80 08 08 17 17 00 00 00 00 48 48 8d 8d 4b 4b 01 01 <48> <48> 0f 0f be be 31 31 40 40 84 84 f6 f6 74 74 07 07 c6 c6 01 01 00 00 f0 f0 48 48 01 01 32 32 48 48 83 83 c2 c2 08 08 48 48
[ 8.215580] RIP
[ 8.215580] RIP [<ffffffff8d7b7ae7>] cpu_vm_stats_fold+0xb7/0x110
[<ffffffff8d7b7ae7>] cpu_vm_stats_fold+0xb7/0x110
[ 8.217401] RSP <ffff8800002a3bf8>
[ 8.217401] RSP <ffff8800002a3bf8>
[ 8.218367] CR2: 00000000001d7661
[ 8.218367] CR2: 00000000001d7661
[ 8.219299] ---[ end trace 1e78d589fe0fa47a ]---
[ 8.219299] ---[ end trace 1e78d589fe0fa47a ]---
Thanks,
Kernel Test Robot
5 years, 8 months