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Date: Fri, 17 Mar 2017 22:12:12 +0800
From: kernel test robot <fengguang.wu@...el.com>
To: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Cc: LKP <lkp@...org>, linux-kernel@...r.kernel.org,
Josh Triplett <josh@...htriplett.org>, wfg@...ux.intel.com
Subject: [rcu] 02a5c550b2: BUG: kernel hang in test stage
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 02a5c550b2738f2bfea8e1e00aa75944d71c9e18
Author: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
AuthorDate: Wed Nov 2 17:25:06 2016 -0700
Commit: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
CommitDate: Mon Jan 23 11:44:18 2017 -0800
rcu: Abstract extended quiescent state determination
This commit is the fourth step towards full abstraction of all accesses
to the ->dynticks counter, implementing previously open-coded checks and
comparisons in new rcu_dynticks_in_eqs() and rcu_dynticks_in_eqs_since()
functions. This abstraction will ease changes to the ->dynticks counter
operation.
Signed-off-by: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@...htriplett.org>
2625d469ba rcu: Abstract dynticks extended quiescent state enter/exit operations
02a5c550b2 rcu: Abstract extended quiescent state determination
d11507e197 Merge tag 'xfs-4.11-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
5be4921c99 Add linux-next specific files for 20170310
+----------------------------------------------------------------------------------+------------+------------+------------+---------------+
| | 2625d469ba | 02a5c550b2 | d11507e197 | next-20170310 |
+----------------------------------------------------------------------------------+------------+------------+------------+---------------+
| boot_successes | 913 | 302 | 293 | 284 |
| boot_failures | 0 | 9 | 12 | 7 |
| BUG:kernel_reboot-without-warning_in_test_stage | 0 | 3 | 1 | 3 |
| BUG:kernel_hang_in_test_stage | 0 | 5 | 10 | 4 |
| page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_NORETRY) | 0 | 1 | | |
| page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_NORETRY),nodemask=(null) | 0 | 0 | 1 | |
+----------------------------------------------------------------------------------+------------+------------+------------+---------------+
[main] Setsockopt(10e 3 1b8f000 4) on fd 378 [16:2:9]
[main] Setsockopt(1 2a 1b8f000 d) on fd 379 [1:5:1]
[main] 375 sockets created based on info from socket cachefile.
# HH:MM RESULT GOOD BAD GOOD_BUT_DIRTY DIRTY_NOT_BAD
git bisect start c1ae3cfa0e89fa1a7ecc4c99031f5e9ae99d9201 v4.10 --
git bisect bad af8999f672421776417977101c3e1f334414c065 # 08:27 B 286 1 0 0 Merge tag 'armsoc-fixes-nc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
git bisect bad b8989bccd6a0ad49db4795afca56a733e1c19099 # 15:32 B 284 2 6 8 Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
git bisect bad c945d0227d86ddc3485290fa5da1a7d2c9b759de # 22:00 B 282 1 5 5 Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad 60c906bab124a0627fba04c9ca5e61bba4747c0c # 04:26 B 291 1 3 3 Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 20dcfe1b7df4072a3c13bdb7506f7138125d0099 # 17:09 G 309 0 1 1 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect bad f7458a5d631df2ecdbfe4a606053aba19913cc41 # 23:31 B 270 1 6 6 Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 1cd4027cfe33390dc3f442aea8e7caeeeaa861a1 # 12:11 G 309 0 1 1 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 575260e3f8f8ac72dc0c41a4a20190d1a5f2b887 # 12:39 G 300 0 0 0 Merge branch 'core-debugobjects-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
git bisect good 8dc79888a792f6c365c2a26903e49ff919e72488 # 00:09 G 302 0 0 0 rcu: Add lockdep checks to synchronous expedited primitives
git bisect good 7d025948e4982ee3fa741c0fa56385c8b4a7072d # 13:12 G 300 0 1 1 torture: Enable DEBUG_OBJECTS_RCU_HEAD for Tiny RCU
git bisect bad 38d30b336ccf8ee98e0e494a13738a0fade5a5e6 # 19:36 B 286 1 2 2 rcu: Adjust FQS offline checks for exact online-CPU detection
git bisect good 2625d469baeef3aabdfe122572e00c517e2d9451 # 07:13 G 302 0 0 0 rcu: Abstract dynticks extended quiescent state enter/exit operations
git bisect bad 3a19b46a5c17b12ef0691df19c676ba3da330a57 # 13:38 B 285 1 5 5 rcu: Check cond_resched_rcu_qs() state less often to reduce GP overhead
git bisect bad 02a5c550b2738f2bfea8e1e00aa75944d71c9e18 # 20:03 B 292 2 4 4 rcu: Abstract extended quiescent state determination
# first bad commit: [02a5c550b2738f2bfea8e1e00aa75944d71c9e18] rcu: Abstract extended quiescent state determination
git bisect good 2625d469baeef3aabdfe122572e00c517e2d9451 # 09:10 G 905 0 0 0 rcu: Abstract dynticks extended quiescent state enter/exit operations
# extra tests on HEAD of linux-devel/devel-spot-201703080609
git bisect bad e511f50e5a22ddead24136265432aacb9f961c3d # 09:10 B 118 2 0 2 0day head guard for 'devel-spot-201703080609'
# extra tests on tree/branch linus/master
git bisect bad d11507e197242aaab172d7f1d0fe4771fbffa530 # 15:40 B 279 1 2 2 Merge tag 'xfs-4.11-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
# extra tests on tree/branch linux-next/master
git bisect bad 5be4921c9958ec02a67506bd6f7a52fce663c201 # 22:06 B 277 1 3 3 Add linux-next specific files for 20170310
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/lkp Intel Corporation
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