From: Thomas Gleixner <tglx@linutronix.de>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>,
Arjan van de Ven <arjan@infradead.org>
Subject: Re: Linux 2.6.20-rc6 - supend lockdep warning
Date: Sat, 27 Jan 2007 21:47:34 +0100 [thread overview]
Message-ID: <1169930854.17469.114.camel@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.64.0701241847360.25027@woody.linux-foundation.org>
On Wed, 2007-01-24 at 18:58 -0800, Linus Torvalds wrote:
> It's been more than a week since -rc5, but I blame everybody (including
> me) being away for Linux.conf.au and then me waiting for a few days
> afterwards to let everybody sync up.
2.6.20-rc6-git (today) on a dual core laptop:
PM: Preparing system for mem sleep
Disabling non-boot CPUs ...
=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.20-rc6 #3
-------------------------------------------------------
pm-suspend/3601 is trying to acquire lock:
(cpu_bitmask_lock){--..}, at: [<c032cd2b>] mutex_lock+0x1c/0x1f
but task is already holding lock:
(workqueue_mutex){--..}, at: [<c032cd2b>] mutex_lock+0x1c/0x1f
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (workqueue_mutex){--..}:
[<c0140880>] __lock_acquire+0x8dd/0xa04
[<c0140c90>] lock_acquire+0x56/0x6f
[<c032cb80>] __mutex_lock_slowpath+0xe5/0x274
[<c032cd2b>] mutex_lock+0x1c/0x1f
[<c0136d14>] __create_workqueue+0x61/0x136
[<f8bfe62e>] cpufreq_governor_dbs+0xa1/0x30e [cpufreq_ondemand]
[<c02b2c3c>] __cpufreq_governor+0x9e/0xd2
[<c02b2df7>] __cpufreq_set_policy+0x187/0x209
[<c02b3056>] store_scaling_governor+0x164/0x1b1
[<c02b24f9>] store+0x37/0x48
[<c01aeb8d>] sysfs_write_file+0xb3/0xdb
[<c0175e0f>] vfs_write+0xaf/0x163
[<c017645d>] sys_write+0x3d/0x61
[<c0103f8c>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
-> #2 (dbs_mutex){--..}:
[<c0140880>] __lock_acquire+0x8dd/0xa04
[<c0140c90>] lock_acquire+0x56/0x6f
[<c032cb80>] __mutex_lock_slowpath+0xe5/0x274
[<c032cd2b>] mutex_lock+0x1c/0x1f
[<f8bfe612>] cpufreq_governor_dbs+0x85/0x30e [cpufreq_ondemand]
[<c02b2c3c>] __cpufreq_governor+0x9e/0xd2
[<c02b2df7>] __cpufreq_set_policy+0x187/0x209
[<c02b3056>] store_scaling_governor+0x164/0x1b1
[<c02b24f9>] store+0x37/0x48
[<c01aeb8d>] sysfs_write_file+0xb3/0xdb
[<c0175e0f>] vfs_write+0xaf/0x163
[<c017645d>] sys_write+0x3d/0x61
[<c0103f8c>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
-> #1 (&policy->lock){--..}:
[<c0140880>] __lock_acquire+0x8dd/0xa04
[<c0140c90>] lock_acquire+0x56/0x6f
[<c032cb80>] __mutex_lock_slowpath+0xe5/0x274
[<c032cd2b>] mutex_lock+0x1c/0x1f
[<c02b2ea2>] cpufreq_set_policy+0x29/0x79
[<c02b3804>] cpufreq_add_dev+0x342/0x48a
[<c025a799>] sysdev_driver_register+0x5f/0xa9
[<c02b2ad5>] cpufreq_register_driver+0xac/0x175
[<c046fd3f>] centrino_init+0x9b/0xa2
[<c01004c4>] init+0x11b/0x2c8
[<c0104c87>] kernel_thread_helper+0x7/0x10
[<ffffffff>] 0xffffffff
-> #0 (cpu_bitmask_lock){--..}:
[<c0140781>] __lock_acquire+0x7de/0xa04
[<c0140c90>] lock_acquire+0x56/0x6f
[<c032cb80>] __mutex_lock_slowpath+0xe5/0x274
[<c032cd2b>] mutex_lock+0x1c/0x1f
[<c0144840>] lock_cpu_hotplug+0x6c/0x78
[<c02b3264>] cpufreq_driver_target+0x28/0x5e
[<c02b398e>] cpufreq_cpu_callback+0x42/0x52
[<c0133cd3>] notifier_call_chain+0x20/0x31
[<c0133d00>] raw_notifier_call_chain+0x8/0xa
[<c014452e>] _cpu_down+0x47/0x1fb
[<c01448c7>] disable_nonboot_cpus+0x7b/0x100
[<c014853f>] enter_state+0x91/0x1bb
[<c01486ef>] state_store+0x86/0x9c
[<c01ae8e8>] subsys_attr_store+0x20/0x25
[<c01aeb8d>] sysfs_write_file+0xb3/0xdb
[<c0175e0f>] vfs_write+0xaf/0x163
[<c017645d>] sys_write+0x3d/0x61
[<c0103f8c>] sysenter_past_esp+0x5d/0x99
[<ffffffff>] 0xffffffff
other info that might help us debug this:
4 locks held by pm-suspend/3601:
#0: (pm_mutex){--..}, at: [<c01484ee>] enter_state+0x40/0x1bb
#1: (cpu_add_remove_lock){--..}, at: [<c032cd2b>] mutex_lock+0x1c/0x1f
#2: (cache_chain_mutex){--..}, at: [<c032cd2b>] mutex_lock+0x1c/0x1f
#3: (workqueue_mutex){--..}, at: [<c032cd2b>] mutex_lock+0x1c/0x1f
stack backtrace:
[<c0104ff6>] show_trace_log_lvl+0x1a/0x2f
[<c01056af>] show_trace+0x12/0x14
[<c0105761>] dump_stack+0x16/0x18
[<c013f101>] print_circular_bug_tail+0x5f/0x68
[<c0140781>] __lock_acquire+0x7de/0xa04
[<c0140c90>] lock_acquire+0x56/0x6f
[<c032cb80>] __mutex_lock_slowpath+0xe5/0x274
[<c032cd2b>] mutex_lock+0x1c/0x1f
[<c0144840>] lock_cpu_hotplug+0x6c/0x78
[<c02b3264>] cpufreq_driver_target+0x28/0x5e
[<c02b398e>] cpufreq_cpu_callback+0x42/0x52
[<c0133cd3>] notifier_call_chain+0x20/0x31
[<c0133d00>] raw_notifier_call_chain+0x8/0xa
[<c014452e>] _cpu_down+0x47/0x1fb
[<c01448c7>] disable_nonboot_cpus+0x7b/0x100
[<c014853f>] enter_state+0x91/0x1bb
[<c01486ef>] state_store+0x86/0x9c
[<c01ae8e8>] subsys_attr_store+0x20/0x25
[<c01aeb8d>] sysfs_write_file+0xb3/0xdb
[<c0175e0f>] vfs_write+0xaf/0x163
[<c017645d>] sys_write+0x3d/0x61
[<c0103f8c>] sysenter_past_esp+0x5d/0x99
=======================
Breaking affinity for irq 1
Breaking affinity for irq 12
Breaking affinity for irq 21
Breaking affinity for irq 22
Breaking affinity for irq 219
CPU 1 is now offline
next prev parent reply other threads:[~2007-01-27 20:47 UTC|newest]
Thread overview: 126+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-25 2:58 Linux 2.6.20-rc6 Linus Torvalds
2007-01-25 10:09 ` Sunil Naidu
2007-01-25 11:10 ` Linux 2.6.20-rc6 - build failure Eyal Lebedinsky
2007-01-26 2:22 ` Eyal Lebedinsky
2007-01-26 10:49 ` [Ocfs2-devel] [2.6 patch] fix OCFS2 compile error Adrian Bunk
2007-01-26 18:49 ` Adrian Bunk
2007-01-26 11:47 ` [Ocfs2-devel] " Mark Fasheh
2007-01-26 19:47 ` Mark Fasheh
2007-01-26 11:53 ` [Ocfs2-devel] " Adrian Bunk
2007-01-26 19:53 ` Adrian Bunk
2007-01-26 18:46 ` Linux 2.6.20-rc6 - build failure Mark Fasheh
2007-01-25 17:50 ` Linux 2.6.20-rc6 Arkadiusz Patyk
2007-01-25 21:05 ` Michal Piotrowski
2007-01-25 21:12 ` David Miller
2007-01-26 16:52 ` Venkat Yekkirala
2007-01-26 18:10 ` 2.6.20-rc6: known unfixed regressions (part 1) Adrian Bunk
2007-01-26 18:11 ` 2.6.20-rc6: known unfixed regressions (part 2) Adrian Bunk
2007-01-26 18:11 ` Adrian Bunk
2007-01-26 18:11 ` Adrian Bunk
2007-01-26 18:16 ` Malte Schröder
2007-01-27 17:28 ` Adrian Bunk
2007-01-27 17:39 ` Adrian Bunk
2007-01-27 17:58 ` Linus Torvalds
2007-01-26 19:04 ` Michal Piotrowski
2007-01-26 19:04 ` Michal Piotrowski
2007-01-26 19:04 ` Michal Piotrowski
2007-01-26 19:08 ` Venkat Yekkirala
2007-01-26 18:18 ` 2.6.20-rc6: known regressions with patches Adrian Bunk
2007-01-29 8:45 ` Ingo Molnar
2007-01-29 12:58 ` Dave Jones
2007-01-27 17:32 ` 2.6.20-rc6: known unfixed regressions (v2) (part 1) Adrian Bunk
2007-01-27 17:42 ` 2.6.20-rc6: known unfixed regressions (v2) (part 2) Adrian Bunk
2007-01-27 17:42 ` Adrian Bunk
2007-01-28 13:33 ` Uwe Bugla
2007-01-28 13:33 ` Uwe Bugla
2007-01-28 23:21 ` Andrew Morton
2007-02-02 12:58 ` Uwe Bugla
2007-01-29 6:26 ` Mike Galbraith
2007-01-29 6:26 ` Mike Galbraith
2007-01-29 6:48 ` Andrew Morton
2007-01-29 6:48 ` Andrew Morton
2007-01-29 7:08 ` Mike Galbraith
2007-01-29 7:08 ` Mike Galbraith
2007-01-29 7:13 ` Linus Torvalds
2007-01-29 7:13 ` Linus Torvalds
2007-01-29 7:04 ` Linus Torvalds
2007-01-29 7:19 ` Mike Galbraith
2007-01-29 10:01 ` Mike Galbraith
2007-01-29 18:16 ` Mike Galbraith
2007-01-29 18:43 ` Linus Torvalds
2007-01-30 4:14 ` Mike Galbraith
2007-01-29 17:16 ` Mike Christie
2007-01-29 20:37 ` Mike Christie
2007-01-29 20:58 ` Linus Torvalds
2007-01-29 22:16 ` Linus Torvalds
2007-01-29 23:01 ` Linus Torvalds
2007-01-29 23:32 ` Linus Torvalds
2007-01-29 23:42 ` Mike Christie
2007-01-30 0:23 ` Linus Torvalds
2007-01-30 0:55 ` Mike Christie
2007-01-30 1:04 ` Mike Christie
2007-01-30 1:45 ` Linus Torvalds
2007-01-30 2:50 ` Mike Christie
2007-01-30 3:02 ` Mike Christie
2007-01-30 3:08 ` Andrew Morton
2007-01-30 2:18 ` Mike Christie
2007-01-30 3:33 ` Andrew Morton
2007-01-30 4:44 ` Linus Torvalds
2007-01-30 4:00 ` Mike Galbraith
2007-01-30 3:25 ` Mike Galbraith
2007-01-30 4:14 ` Jeff Garzik
2007-02-02 13:07 ` Uwe Bugla
2007-01-27 17:44 ` 2.6.20-rc6: known regressions with patches (v2) Adrian Bunk
2007-01-27 20:47 ` Thomas Gleixner [this message]
2007-01-27 20:55 ` Linux 2.6.20-rc6 - sky2 resume breakage Thomas Gleixner
2007-01-29 19:31 ` Stephen Hemminger
2007-01-29 20:10 ` Thomas Gleixner
2007-01-29 21:38 ` Stephen Hemminger
2007-01-29 22:23 ` Thomas Gleixner
2007-01-29 22:23 ` Stephen Hemminger
2007-01-29 22:31 ` Thomas Gleixner
2007-01-29 22:37 ` Linus Torvalds
2007-01-29 22:40 ` Stephen Hemminger
2007-01-29 23:04 ` Linus Torvalds
2007-01-29 23:45 ` Stephen Hemminger
2007-01-30 0:12 ` Linus Torvalds
2007-01-30 0:16 ` Stephen Hemminger
2007-01-30 0:25 ` Linus Torvalds
2007-01-30 0:26 ` Stephen Hemminger
2007-01-30 6:54 ` Ingo Molnar
2007-01-30 7:39 ` Jeff Garzik
2007-01-30 7:53 ` Ingo Molnar
2007-01-30 8:02 ` Jeff Garzik
2007-01-30 8:08 ` Ingo Molnar
2007-01-30 8:13 ` Ingo Molnar
2007-01-31 15:27 ` Jeff Garzik
2007-01-31 17:38 ` Ingo Molnar
2007-01-31 17:52 ` Jeff Garzik
2007-01-31 20:13 ` Thomas Gleixner
2007-01-30 8:03 ` Ingo Molnar
2007-02-01 6:15 ` [LIBATA BUG] sr.c: TEST_UNIT_READY error Conke Hu
2007-02-07 12:40 ` Jeff Garzik
2007-02-02 5:48 ` Conke Hu
2007-02-13 7:30 ` Conke Hu
2007-02-15 6:30 ` Conke Hu
2007-01-30 8:57 ` Linux 2.6.20-rc6 - sky2 resume breakage Len Brown
2007-01-30 16:01 ` Rafael J. Wysocki
2007-01-30 21:28 ` Nigel Cunningham
2007-02-01 12:49 ` Pavel Machek
2007-01-29 23:42 ` [PATCH] sky2: fix MSI related " Thomas Gleixner
2007-01-29 22:38 ` Linux 2.6.20-rc6 - sky2 " Frédéric Riss
2007-01-29 22:45 ` Thomas Gleixner
2007-01-29 22:50 ` Frédéric Riss
2007-01-29 22:57 ` Thomas Gleixner
2007-01-29 23:26 ` Frédéric Riss
2007-01-29 23:37 ` Thomas Gleixner
2007-01-29 23:50 ` [PATCH] block MSI on Sony Stephen Hemminger
2007-01-30 0:22 ` Thomas Gleixner
2007-01-30 0:21 ` Stephen Hemminger
2007-01-30 0:31 ` Thomas Gleixner
2007-01-30 0:31 ` Stephen Hemminger
2007-01-30 0:26 ` Thomas Gleixner
2007-01-27 22:11 ` Linux 2.6.20-rc6 - suspend / resume ata_piix Thomas Gleixner
2007-01-27 22:40 ` Jeff Garzik
2007-01-27 22:44 ` Thomas Gleixner
2007-01-28 22:05 ` Thomas Gleixner
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