From: Nils Radtke <lkml@Think-Future.de>
To: Linux Kernel-Liste <linux-kernel@vger.kernel.org>
Subject: INFO: inconsistent lock state
Date: Mon, 13 Sep 2010 16:51:02 +0200 [thread overview]
Message-ID: <20100913145102.GI25129@localhost> (raw)
Hi,
Got this in the logs:
PM: Adding info for No Bus:vcs7
PM: Adding info for No Bus:vcsa7
initialized framebuffer f62c8580 with backing bo f62c0080
=================================
[ INFO: inconsistent lock state ]
2.6.35.4 #11
---------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
(&(&bdi->wb_lock)->rlock){+.?...}, at: [<c110b042>] bdi_queue_work+0x22/0x90
{SOFTIRQ-ON-W} state was registered at:
[<c10682f4>] __lock_acquire+0x984/0x17c0
[<c10691ab>] lock_acquire+0x7b/0x190
[<c16ecd81>] _raw_spin_lock+0x41/0x70
[<c10c7223>] bdi_task_init+0x23/0x70
[<c10c7a56>] bdi_forker_task+0x16/0x2e0
[<c1052b2c>] kthread+0x6c/0x80
[<c10031ba>] kernel_thread_helper+0x6/0x3c
irq event stamp: 523044
hardirqs last enabled at (523044): [<c10e2877>] kmem_cache_alloc_notrace+0x57/0xc0
hardirqs last disabled at (523043): [<c10e284f>] kmem_cache_alloc_notrace+0x2f/0xc0
softirqs last enabled at (522978): [<c103d305>] __do_softirq+0xe5/0x2e0
softirqs last disabled at (523039): [<c103d54d>] do_softirq+0x4d/0x60
other info that might help us debug this:
1 lock held by swapper/0:
#0: (&q->backing_dev_info.laptop_mode_wb_timer){+.-...}, at: [<c1044ddf>] run_timer_softirq+0xbf/0x500
stack backtrace:
Pid: 0, comm: swapper Not tainted 2.6.35.4 #11
Call Trace:
[<c16ea035>] ? printk+0x18/0x1a
[<c1065512>] print_usage_bug+0x162/0x1a0
[<c10658fb>] mark_lock+0x3ab/0x5b0
[<c10648bb>] ? trace_hardirqs_off+0xb/0x10
[<c1066180>] ? check_usage_forwards+0x0/0xe0
[<c10682b3>] __lock_acquire+0x943/0x17c0
[<c1004b1f>] ? dump_trace+0x7f/0xd0
[<c1064b7b>] ? save_trace+0x3b/0xc0
[<c106567c>] ? mark_lock+0x12c/0x5b0
[<c10648bb>] ? trace_hardirqs_off+0xb/0x10
[<c10691ab>] lock_acquire+0x7b/0x190
[<c110b042>] ? bdi_queue_work+0x22/0x90
[<c16ecd81>] _raw_spin_lock+0x41/0x70
[<c110b042>] ? bdi_queue_work+0x22/0x90
[<c110b042>] bdi_queue_work+0x22/0x90
[<c110b8de>] __bdi_start_writeback+0x7e/0x190
[<c110ba27>] bdi_start_writeback+0x17/0x20
[<c10badd8>] laptop_mode_timer_fn+0x38/0x50
[<c1044e67>] run_timer_softirq+0x147/0x500
[<c1044ddf>] ? run_timer_softirq+0xbf/0x500
[<c10bada0>] ? laptop_mode_timer_fn+0x0/0x50
[<c103d2a6>] __do_softirq+0x86/0x2e0
[<c103d54d>] do_softirq+0x4d/0x60
[<c103d725>] irq_exit+0x75/0x80
[<c1004453>] do_IRQ+0x43/0xb0
[<c10031ae>] common_interrupt+0x2e/0x34
[<c106007b>] ? time_to_tm+0x4b/0x1f0
[<c131fe74>] ? acpi_idle_enter_bm+0x21d/0x251
[<c14b67fa>] cpuidle_idle_call+0x6a/0x180
[<c1001bd9>] cpu_idle+0x39/0x70
[<c16de676>] rest_init+0xe6/0x100
[<c16de590>] ? rest_init+0x0/0x100
[<c1b6d823>] start_kernel+0x2f8/0x2fe
[<c1b6d355>] ? unknown_bootoption+0x0/0x1a0
[<c1b6d0b4>] i386_start_kernel+0xb4/0xbc
ata3.00: configured for UDMA/133
ata3: EH complete
sd 2:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
PM: Adding info for No Bus:vcs2
Cheers,
Nils
next reply other threads:[~2010-09-13 14:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-13 14:51 Nils Radtke [this message]
2010-09-16 18:18 ` INFO: inconsistent lock state Maciej Rutecki
2010-09-17 18:05 ` Nils Radtke
-- strict thread matches above, loose matches on Subject: below --
2006-07-09 22:30 Arne Ahrend
2006-07-09 10:02 Arne Ahrend
2006-07-09 10:28 ` Arjan van de Ven
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100913145102.GI25129@localhost \
--to=lkml@think-future.de \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.