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Message-ID: <20170228035924.hqckycv6at4sfzyc@wfg-t540p.sh.intel.com>
Date: Tue, 28 Feb 2017 11:59:24 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Nicolai Hähnle <Nicolai.Haehnle@....com>,
Chris Wilson <chris@...is-wilson.co.uk>
Cc: "Peter Zijlstra (Intel)" <peterz@...radead.org>,
Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
LKP <lkp@...org>
Subject: [locking/ww_mutex] f2a5fec173 EIP: __mutex_trylock
Hello,
Here is another bisect result with a different call trace.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
commit f2a5fec17395f259d54daa8833d81b00cceb15c3
Author: Chris Wilson <chris@...is-wilson.co.uk>
AuthorDate: Thu Dec 1 11:47:06 2016 +0000
Commit: Ingo Molnar <mingo@...nel.org>
CommitDate: Sat Jan 14 11:37:14 2017 +0100
locking/ww_mutex: Begin kselftests for ww_mutex
Signed-off-by: Chris Wilson <chris@...is-wilson.co.uk>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Maarten Lankhorst <dev@...ankhorst.nl>
Cc: Nicolai Hähnle <nhaehnle@...il.com>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Link: http://lkml.kernel.org/r/20161201114711.28697-4-chris@chris-wilson.co.uk
Signed-off-by: Ingo Molnar <mingo@...nel.org>
0186a6cbdc locking/ww_mutex: Add ww_mutex to locktorture test
f2a5fec173 locking/ww_mutex: Begin kselftests for ww_mutex
+------------------------------------------------+------------+------------+
| | 0186a6cbdc | f2a5fec173 |
+------------------------------------------------+------------+------------+
| boot_successes | 1122 | 0 |
| boot_failures | 0 | 243 |
| EIP:test_mutex_work | 0 | 97 |
| calltrace:do_softirq_own_stack | 0 | 123 |
| Kernel_panic-not_syncing:softlockup:hung_tasks | 0 | 243 |
| EIP:mutex_trylock | 0 | 65 |
| EIP:__mutex_trylock | 0 | 81 |
+------------------------------------------------+------------+------------+
[ 2.971622] spin_lock-torture: Creating lock_torture_stats task
[ 2.971659] spin_lock-torture: lock_torture_writer task started
[ 2.971801] spin_lock-torture: lock_torture_stats task started
[ 28.709171] NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [kworker/0:1:18]
[ 28.710974] irq event stamp: 25570
[ 28.711660] hardirqs last enabled at (25569): [<8148b70e>] restore_all+0xf/0x31
[ 28.713123] hardirqs last disabled at (25570): [<8148bef0>] apic_timer_interrupt+0x30/0x40
[ 28.714896] softirqs last enabled at (19288): [<8103372b>] __do_softirq+0x187/0x1d3
[ 28.716673] softirqs last disabled at (19279): [<81011d9f>] do_softirq_own_stack+0x1c/0x22
[ 28.740997] CPU: 0 PID: 18 Comm: kworker/0:1 Not tainted 4.10.0-rc3-00151-gf2a5fec #180
[ 28.751629] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 28.761621] Workqueue: events test_mutex_work
[ 28.762938] task: 95110480 task.stack: 9517e000
[ 28.764313] EIP: __mutex_trylock+0x4/0xa3
[ 28.765531] EFLAGS: 00200282 CPU: 0
[ 28.766660] EAX: 95035e10 EBX: 95035df0 ECX: 00000006 EDX: 00000007
[ 28.773223] ESI: 95035e10 EDI: 00000000 EBP: 9517feec ESP: 9517fee8
[ 28.783901] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
[ 28.792941] CR0: 80050033 CR2: ffffffff CR3: 018cc000 CR4: 00000690
[ 28.795138] Call Trace:
[ 28.796037] mutex_trylock+0xf/0x4c
[ 28.797299] test_mutex_work+0x31/0x56
[ 28.798683] process_one_work+0x1b4/0x2f9
[ 28.803362] ? process_one_work+0x131/0x2f9
[ 28.813482] worker_thread+0x1b0/0x27c
[ 28.814741] kthread+0xd1/0xd3
[ 28.815825] ? process_scheduled_works+0x24/0x24
[ 28.825830] ? __list_add+0x24/0x24
[ 28.827000] ret_from_fork+0x19/0x30
[ 28.828106] Code: 5d c3 55 89 e5 5d c3 55 89 e5 50 9d 8d 74 26 00 5d c3 55 89 e5 9c 58 8d 74 26 00 89 c1 fa 90 8d 74 26 00 89 c8 5d c3 55 89 e5 57 <56> 89 c6 53 83 ec 18 8b 1e a1 8c 24 79 81 89 45 ec 89 45 f0 89
[ 28.836822] Kernel panic - not syncing: softlockup: hung tasks
[ 28.853271] CPU: 0 PID: 18 Comm: kworker/0:1 Tainted: G L 4.10.0-rc3-00151-gf2a5fec #180
[ 28.855588] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.9.3-20161025_171302-gandalf 04/01/2014
[ 28.858154] Workqueue: events test_mutex_work
[ 28.859405] Call Trace:
[ 28.860089] dump_stack+0x16/0x18
[ 28.860968] panic+0x96/0x1bc
[ 28.861731] watchdog_timer_fn+0x164/0x181
[ 28.862709] hrtimer_run_queues+0xeb/0x19f
[ 28.885854] ? __touch_watchdog+0x13/0x13
[ 28.886984] run_local_timers+0x8/0x37
[ 28.888035] update_process_times+0x17/0x37
[ 28.889137] tick_nohz_handler+0x83/0xca
[ 28.890091] local_apic_timer_interrupt+0x40/0x42
[ 28.891195] ? apic_eoi+0x16/0x18
[ 28.891998] smp_apic_timer_interrupt+0x1e/0x2c
[ 28.893096] apic_timer_interrupt+0x37/0x40
[ 28.894169] EIP: __mutex_trylock+0x4/0xa3
[ 28.895199] EFLAGS: 00200282 CPU: 0
[ 28.917169] EAX: 95035e10 EBX: 95035df0 ECX: 00000006 EDX: 00000007
[ 28.919045] ESI: 95035e10 EDI: 00000000 EBP: 9517feec ESP: 9517fee8
[ 28.920713] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068
[ 28.922030] ? ctrl_fill_info+0x282/0x2a2
[ 28.922972] mutex_trylock+0xf/0x4c
[ 28.923804] test_mutex_work+0x31/0x56
[ 28.924749] process_one_work+0x1b4/0x2f9
[ 28.925836] ? process_one_work+0x131/0x2f9
[ 28.941979] worker_thread+0x1b0/0x27c
[ 28.942940] kthread+0xd1/0xd3
[ 28.943683] ? process_scheduled_works+0x24/0x24
[ 28.944732] ? __list_add+0x24/0x24
[ 28.945566] ret_from_fork+0x19/0x30
[ 28.946427] Kernel Offset: disabled
git bisect start ea6926168c5152e8fa08c0aed9d56862dca26a7a c470abd4fde40ea6a0846a2beab642a578c0b8cd --
git bisect bad a820a194201876a7c640df52a509771200264681 # 16:08 12- 18 Merge 'linux-review/John-Fastabend/XDP-for-ixgbe/20170226-013816' into devel-spot-201702260822
git bisect bad 54bb68626669e22a37e078bb0ae872da4f36fb71 # 16:59 40- 48 Merge 'linux-review/Camelia-Moise/ASoC-mxs-saif-Removing-whitespace-before-a-pointer-and-its-name/20170226-055514' into devel-spot-201702260822
git bisect bad ba634f0127be44174e10ce98786d0f7623760e1f # 17:08 11- 12 Merge 'linux-review/Codrut-Grosu/ASoC-pxa-Remove-unneeded-else-after-return-statement/20170226-054452' into devel-spot-201702260822
git bisect bad 59555b9d1fa29d457e6665908c32ed87bf7cb408 # 17:18 32- 42 Merge 'sound/topic/dollar-cove-ti' into devel-spot-201702260822
git bisect good 22104d2f4b0b2a07d92ca44ddaff5c1232a00b7e # 17:36 132+ 0 0day base guard for 'devel-spot-201702260822'
git bisect bad 6ab597a0ad2eb771b52c7b9472fd52298bc502aa # 17:48 17- 24 Merge 'hp-parisc/for-next' into devel-spot-201702260822
git bisect bad 8ff546b801e5cca0337c0f0a7234795d0a6309a1 # 17:56 16- 18 Merge tag 'usb-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
git bisect bad 4a0853bf88c8f56e1c01eda02e6625aed09d55d9 # 18:07 5- 8 Merge tag 'usercopy-v4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
git bisect bad fd4a61e08aa79f2b7835b25c6f94f27bd2d65990 # 18:07 0- 162 sched/core: Fix build paravirt build on arm and arm64
git bisect good 828cad8ea05d194d8a9452e0793261c2024c23a2 # 18:22 139+ 0 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad f790bd9c8e826434ab6c326b225276ed0f73affe # 18:22 0- 172 Merge tag 'regulator-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
git bisect bad 937b5b5ddd2f685b4962ec19502e641bb5741c12 # 18:22 0- 92 Merge tag 'm68k-for-v4.11-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k
git bisect bad 8a9365a4725a4d6265a416dd63bff937e300308e # 18:22 0- 228 Merge branch 'x86-cpufeature-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 85b36c931ff328297572a3e6136fac573795ad79 # 18:22 0- 233 jump_labels: Move header guard #endif down where it belongs
git bisect good 25f13b4040b68dfc5a2a22e7234894e718e3f4c5 # 18:29 140+ 1 locking/ww_mutex: Re-check ww->ctx in the inner optimistic spin loop
git bisect bad d1b42b800e5d09dcee52812b4396aca3a3696ba9 # 18:30 0- 243 locking/ww_mutex: Add kselftests for resolving ww_mutex cyclic deadlocks
git bisect good af2e859edd477fa1ea3d1d106f41a595cff3d162 # 18:36 140+ 0 locking/ww_mutex: Fix compilation of __WW_MUTEX_INITIALIZER
git bisect bad f2a5fec17395f259d54daa8833d81b00cceb15c3 # 18:36 0- 244 locking/ww_mutex: Begin kselftests for ww_mutex
git bisect good 0186a6cbdc6287fde65858e5d9c714dc167b8ace # 18:42 134+ 0 locking/ww_mutex: Add ww_mutex to locktorture test
# first bad commit: [f2a5fec17395f259d54daa8833d81b00cceb15c3] locking/ww_mutex: Begin kselftests for ww_mutex
git bisect good 0186a6cbdc6287fde65858e5d9c714dc167b8ace # 18:57 395+ 0 locking/ww_mutex: Add ww_mutex to locktorture test
# extra tests on HEAD of linux-devel/devel-spot-201702260822
git bisect bad ea6926168c5152e8fa08c0aed9d56862dca26a7a # 18:57 0- 21 0day head guard for 'devel-spot-201702260822'
# extra tests on tree/branch linus/master
git bisect bad e5d56efc97f8240d0b5d66c03949382b6d7e5570 # 18:57 0- 12 Merge tag 'watchdog-for-linus-v4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
# extra tests on tree/branch linux-next/master
git bisect bad ed7b11e565c736828f0b793f596a4ca20efee747 # 19:06 8- 13 Add linux-next specific files for 20170227
---
0-DAY kernel test infrastructure Open Source Technology Center
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