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Date: Wed, 30 Aug 2017 11:37:21 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: LKP <lkp@...org>, linux-kernel@...r.kernel.org,
Ingo Molnar <mingo@...nel.org>, wfg@...ux.intel.com
Subject: d82fed7529 ("locking/lockdep/selftests: Fix mixed read-write
.."): BUG: -1 unexpected failures (out of 262) - debugging disabled! |
Greetings,
0day kernel testing robot got the below dmesg and the first bad commit is
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core
commit d82fed75294229abc9d757f08a4817febae6c4f4
Author: Peter Zijlstra <peterz@...radead.org>
AuthorDate: Mon Aug 28 14:42:45 2017 +0200
Commit: Ingo Molnar <mingo@...nel.org>
CommitDate: Tue Aug 29 15:15:17 2017 +0200
locking/lockdep/selftests: Fix mixed read-write ABBA tests
Commit:
e91498589746 ("locking/lockdep/selftests: Add mixed read-write ABBA tests")
adds an explicit FAILURE to the locking selftest but overlooked the
fact that this kills lockdep. Fudge the test to avoid this.
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: hpa@...or.com
Link: http://lkml.kernel.org/r/20170828124245.xlo2yshxq2btgmuf@hirez.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@...nel.org>
ec81048cc3 sched/completion: Avoid unnecessary stack allocation for COMPLETION_INITIALIZER_ONSTACK()
d82fed7529 locking/lockdep/selftests: Fix mixed read-write ABBA tests
d82fed7529 locking/lockdep/selftests: Fix mixed read-write ABBA tests
ddad247ed1 Merge branch 'perf/core'
+---------------------------------------------------------+------------+------------+------------+------------+
| | ec81048cc3 | d82fed7529 | d82fed7529 | ddad247ed1 |
+---------------------------------------------------------+------------+------------+------------+------------+
| boot_successes | 35 | 0 | 0 | 0 |
| boot_failures | 0 | 15 | 15 | 19 |
| BUG:-#unexpected_failures(out_of#)-debugging_disabled!| | 0 | 15 | 15 | 19 |
+---------------------------------------------------------+------------+------------+------------+------------+
[ 0.004000] context:failed| ok | ok |
[ 0.004000] try:failed| ok |failed|
[ 0.004000] block:failed| ok |failed|
[ 0.004000] spinlock:failed| ok |failed|
[ 0.004000] -----------------------------------------------------------------
[ 0.004000] BUG: -1 unexpected failures (out of 262) - debugging disabled! |
[ 0.004000] -----------------------------------------------------------------
[ 0.004000] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns
[ 0.004000] hpet clockevent registered
[ 0.004009] tsc: Detected 2693.508 MHz processor
[ 0.005226] Calibrating delay loop (skipped) preset value.. 5387.01 BogoMIPS (lpj=10774032)
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start c9d2cddca4506727eae2e7d2df0620edbf49e82e cc4a41fe5541a73019a864883297bd5043aa6d98 --
git bisect bad 5a5ab909d6bfaee8dd1332c7de7cc02ff3ec087f # 07:17 B 0 11 28 4 Merge 'wsa/i2c/for-next' into devel-catchup-201708300632
git bisect bad 2bf7c98887d8158669b5ded3ab55d6b211eea807 # 07:34 B 0 11 28 4 Merge 'andersson-remoteproc/rpmsg-next' into devel-catchup-201708300632
git bisect bad 0dee929f30bd25284c2f49fee5546691222a05b0 # 07:51 B 0 11 26 2 Merge 'tip/master' into devel-catchup-201708300632
git bisect good 08cc918622aa4d5516f770f8246d41f4a30c2c61 # 08:02 G 11 0 0 0 0day base guard for 'devel-catchup-201708300632'
git bisect good 1b2f76d77a277bb70d38ad0991ed7f16bbc115a9 # 08:17 G 11 0 0 0 Merge tag 'perf-core-for-mingo-4.14-20170829' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
git bisect bad 8ea7c2d9a971f95ec9f6ffac60cb4847d35f0b36 # 08:27 B 0 3 16 0 manual merge of locking/core
git bisect good af07c8069f9951cff957500f3adce04b8665934c # 08:44 G 11 0 0 0 Merge branch 'efi/core'
git bisect good 70911fdc9576f4eeb3986689a1c9a778a4a4aacb # 09:02 G 11 0 0 0 locking/lockdep: Change the meaning of check_prev_add()'s return value
git bisect good a1d14934ea4b9db816a8dbfeab1c3e7204a0d871 # 09:16 G 11 0 0 0 workqueue/lockdep: 'Fix' flush_work() annotation
git bisect good 500912121411e0175d44b69a7810ac6068e78326 # 09:29 G 11 0 0 0 irqchip/xtensa-mx: Report that effective affinity is a single target
git bisect good d45e3dd0a26d52e508e7796cb8f86cde4b3d8a92 # 09:43 G 11 0 0 0 Merge branch 'irq/core'
git bisect good 966a967116e699762dbf4af7f9e0d1955c25aa37 # 09:55 G 11 0 0 0 smp: Avoid using two cache lines for struct call_single_data
git bisect good 1c322ac06d9af7ea259098ae5dc977855207d335 # 10:02 G 11 0 0 0 acpi/nfit: Fix COMPLETION_INITIALIZER_ONSTACK() abuse
git bisect bad d82fed75294229abc9d757f08a4817febae6c4f4 # 10:15 B 0 11 27 3 locking/lockdep/selftests: Fix mixed read-write ABBA tests
git bisect good ec81048cc340bb03334e6ca62661ecc0a684897a # 10:27 G 11 0 0 0 sched/completion: Avoid unnecessary stack allocation for COMPLETION_INITIALIZER_ONSTACK()
# first bad commit: [d82fed75294229abc9d757f08a4817febae6c4f4] locking/lockdep/selftests: Fix mixed read-write ABBA tests
git bisect good ec81048cc340bb03334e6ca62661ecc0a684897a # 10:32 G 31 0 0 0 sched/completion: Avoid unnecessary stack allocation for COMPLETION_INITIALIZER_ONSTACK()
# extra tests with CONFIG_DEBUG_INFO_REDUCED
git bisect bad d82fed75294229abc9d757f08a4817febae6c4f4 # 10:48 B 0 10 23 0 locking/lockdep/selftests: Fix mixed read-write ABBA tests
# extra tests on HEAD of linux-devel/devel-catchup-201708300632
git bisect bad c9d2cddca4506727eae2e7d2df0620edbf49e82e # 10:48 B 0 35 51 0 0day head guard for 'devel-catchup-201708300632'
# extra tests on tree/branch tip/locking/core
git bisect bad d82fed75294229abc9d757f08a4817febae6c4f4 # 10:49 B 0 15 28 0 locking/lockdep/selftests: Fix mixed read-write ABBA tests
# extra tests with first bad commit reverted
git bisect good 5c767a6f4a19bda3da8982bb045a4031a536652f # 11:19 G 11 0 0 0 Revert "locking/lockdep/selftests: Fix mixed read-write ABBA tests"
# extra tests on tree/branch tip/master
git bisect bad ddad247ed1846f2e432e150461a3007fdca504bf # 11:36 B 0 11 32 8 Merge branch 'perf/core'
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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