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Date: Mon, 3 Mar 2014 22:25:26 +0800
From: Fengguang Wu <fengguang.wu@...el.com>
To: Alex Shi <alex.shi@...aro.org>
Cc: linux-kernel@...r.kernel.org
Subject: [sched/balance] INFO: possible recursive locking detected
Greetings,
I got the below dmesg and the first bad commit is
https://github.com/alexshi/power-scheduling.git single-balance.bak
commit 2adc591a5cb6768ad11e63be9011906aa171148d
Author: Alex Shi <alex.shi@...aro.org>
AuthorDate: Fri Feb 28 15:25:09 2014 +0800
Commit: Alex Shi <alex.shi@...aro.org>
CommitDate: Sun Mar 2 09:16:38 2014 +0800
sched/balance: replace new_idle_balance
Curren idle_balance will pull task on half of this group. That is
not needed in central balance.
+-------------------------------------------------------------------------------+--------------+--------------+
| | a15ed8afe32b | 4242b70d68f8 |
+-------------------------------------------------------------------------------+--------------+--------------+
| boot_successes | 73 | 0 |
| boot_failures | 7 | 19 |
| WARNING:CPU:PID:at/kernel-tests/linux/kernel/events/core.c:perf_swevent_add() | 4 | |
| WARNING:CPU:PID:at/kernel-tests/linux/arch/x86/kernel/cpu/amd.c:init_amd() | 3 | |
| backtrace:init_amd | 3 | |
| backtrace:warn_slowpath_fmt | 3 | |
| INFO:possible_recursive_locking_detected | 0 | 19 |
| BUG:spinlock_lockup_suspected_on_CPU | 0 | 7 |
| EIP_is_at_default_send_IPI_mask_logical | 0 | 7 |
| EIP_is_at_try_to_wake_up | 0 | 4 |
| backtrace:__alloc_workqueue_key | 0 | 4 |
| backtrace:cgroup_wq_init | 0 | 2 |
| backtrace:kernel_init_freeable | 0 | 4 |
| BUG:kernel_boot_hang | 0 | 12 |
| backtrace:smpboot_thread_fn | 0 | 6 |
| backtrace:md_init | 0 | 2 |
| backtrace:complete | 0 | 2 |
| EIP_is_at_native_safe_halt | 0 | 1 |
| backtrace:rescuer_thread | 0 | 1 |
| EIP_is_at_delay_tsc | 0 | 1 |
| EIP_is_at_do_raw_spin_lock | 0 | 2 |
| backtrace:do_fork | 0 | 1 |
| backtrace:kthreadd | 0 | 1 |
| backtrace:cpu_startup_entry | 0 | 1 |
+-------------------------------------------------------------------------------+--------------+--------------+
[ 0.214781]
[ 0.214783] =============================================
[ 0.214783] =============================================
[ 0.214784] [ INFO: possible recursive locking detected ]
git bisect start 4242b70d68f8ba165f125b9b264ae27d51ace686 cfbf8d4857c26a8a307fb7cd258074c9dcd8c691 --
git bisect good 9b87ea06889c0c0a2541bddaeae745c0942d7bb7 # 20:30 20+ 1 Merge 'tip/perf/urgent' into devel-roam-i386-201403021704
git bisect good 99a980e45f688d10422c02f5783cc709a0c9d9da # 20:35 20+ 0 Merge 'nfs/testing' into devel-roam-i386-201403021704
git bisect bad 5ae8a8971fe8ffd78ef2eb0e0e8b6ef6795c8c6e # 20:42 0- 1 Merge 'alexshi/single-balance.bak' into devel-roam-i386-201403021704
git bisect good bc575710efe937e26d2bd541d92362b240ef0559 # 20:49 20+ 1 sched: clean up task_hot function
git bisect good 0e32dab5df39cfb1be9a937d67c877404b964324 # 20:53 20+ 0 sched/balance: rebuild ovutil tree after task moving
git bisect bad 2adc591a5cb6768ad11e63be9011906aa171148d # 20:58 0- 1 sched/balance: replace new_idle_balance
git bisect good a15ed8afe32bf743621639b7df2c87ffc47d730a # 21:01 20+ 2 sched/balance: add balance_interval to tuning top level balance frequency
# first bad commit: [2adc591a5cb6768ad11e63be9011906aa171148d] sched/balance: replace new_idle_balance
git bisect good a15ed8afe32bf743621639b7df2c87ffc47d730a # 21:14 60+ 7 sched/balance: add balance_interval to tuning top level balance frequency
git bisect bad 4242b70d68f8ba165f125b9b264ae27d51ace686 # 21:14 0- 19 0day head guard for 'devel-roam-i386-201403021704'
git bisect good 0414855fdc4a40da05221fc6062cccbc0c30f169 # 21:29 60+ 6 Linux 3.14-rc5
git bisect good dab765ebd307ac40af1a556c0b08e26938a1c9cf # 21:43 60+ 5 Add linux-next specific files for 20140303
Thanks,
Fengguang
View attachment "dmesg-quantal-roam-10:20140302172848:i386-randconfig-r5-0302:3.14.0-rc4-00097-g4242b70:112" of type "text/plain" (49475 bytes)
Download attachment "i386-randconfig-r5-0302-4242b70d68f8ba165f125b9b264ae27d51ace686-INFO:-possible-recursive-locking-detected-27445.log" of type "application/octet-stream" (11868 bytes)
View attachment "config-3.14.0-rc4-00097-g4242b70" of type "text/plain" (83952 bytes)
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