From: Andrew Morton <akpm@linux-foundation.org>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>, Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org
Subject: lockdep internal warning in linux-next
Date: Mon, 9 Jun 2008 01:09:17 -0700 [thread overview]
Message-ID: <20080609010917.c00d5225.akpm@linux-foundation.org> (raw)
When I boot the 2-way using
http://userweb.kernel.org/~akpm/config-vmm.txt
I see:
Write protecting the kernel text: 2872k
Write protecting the kernel read-only data: 1012k
hostname used greatest stack depth: 6808 bytes left
mount used greatest stack depth: 6048 bytes left
hotplug used greatest stack depth: 5568 bytes left
------------[ cut here ]------------
WARNING: at kernel/lockdep.c:2680 check_flags+0x162/0x180()
Modules linked in:
Pid: 5, comm: watchdog/0 Not tainted 2.6.26-rc5 #3
[<c0123484>] warn_on_slowpath+0x54/0x70
[<c0141e3b>] ? trace_hardirqs_on+0xb/0x10
[<c0141da4>] ? trace_hardirqs_on_caller+0xd4/0x160
[<c0141e3b>] ? trace_hardirqs_on+0xb/0x10
[<c03cc062>] ? _spin_unlock_irq+0x22/0x30
[<c013b5bc>] ? sched_clock_cpu+0xbc/0x140
[<c013f992>] check_flags+0x162/0x180
[<c0143329>] lock_acquire+0x39/0xa0
[<c03cbeac>] _read_lock+0x2c/0x40
[<c0156ec1>] ? watchdog+0xb1/0x1d0
[<c0156ec1>] watchdog+0xb1/0x1d0
[<c011a0f6>] ? complete+0x46/0x60
[<c0156e10>] ? watchdog+0x0/0x1d0
[<c0136632>] kthread+0x42/0x70
[<c01365f0>] ? kthread+0x0/0x70
[<c0103ba3>] kernel_thread_helper+0x7/0x14
=======================
---[ end trace 8151399cdd960ac9 ]---
possible reason: unannotated irqs-on.
irq event stamp: 14
hardirqs last enabled at (13): [<c0141e3b>] trace_hardirqs_on+0xb/0x10
hardirqs last disabled at (14): [<c01403eb>] trace_hardirqs_off+0xb/0x10
softirqs last enabled at (0): [<c0121a8c>] copy_process+0x27c/0x10b0
softirqs last disabled at (0): [<00000000>] 0x0
EXT3 FS on hdc2, internal journal
Adding 1020116k swap on /dev/hdc3. Priority:-1 extents:1 across:1020116k
(but at least it all boots and runs - small blessings)
next reply other threads:[~2008-06-09 8:09 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-09 8:09 Andrew Morton [this message]
2008-06-09 8:39 ` Ingo Molnar
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=20080609010917.c00d5225.akpm@linux-foundation.org \
--to=akpm@linux-foundation.org \
--cc=a.p.zijlstra@chello.nl \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®