From: Andrew Morton <akpm@linux-foundation.org>
To: Chris Mason <chris.mason@oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Jens Axboe <jaxboe@fusionio.com>,
linux-mm@kvack.org,
KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
Mel Gorman <mel@csn.ul.ie>,
Andrea Arcangeli <aarcange@redhat.com>
Subject: Re: hunting an IO hang
Date: Sun, 16 Jan 2011 18:30:00 -0800 [thread overview]
Message-ID: <20110116183000.cc632557.akpm@linux-foundation.org> (raw)
In-Reply-To: <1295229722-sup-6494@think>
(lots of cc's added)
On Sun, 16 Jan 2011 21:07:40 -0500 Chris Mason <chris.mason@oracle.com> wrote:
> Excerpts from Linus Torvalds's message of 2011-01-16 20:53:04 -0500:
> > .. except I actually didn't add Andrew to the cc after all.
> >
> > NOW I did.
> >
> > Oh, and if you can repeat this and bisect it, it would obviously be
> > great. But that sounds rather painful.
>
> Ok, so I've got 3 different problems in 3 totally different areas.
> I'm running w/kvm, but this VM is very stable with 2.6.37. Running
> Linus' current git it goes boom in exotic ways, this time it was only on
> ext3, btrfs code never loaded.
>
> Linus, if you're planning on rc1 tonight I'll send my pull request out
> the door. Otherwise I'd prefer to fix this and send my pull after
> actually getting a long btrfs run on the current code.
>
> Next up, CONFIG_DEBUG*, always an adventure on rc1 kernels ;)
>
> WARNING: at lib/list_debug.c:57 list_del+0xc0/0xed()
> Hardware name: Bochs
> list_del corruption. next->prev should be ffffea000010cde0, but was ffff88007cff6bc8
> Modules linked in:
> Pid: 524, comm: kswapd0 Not tainted 2.6.37-josef+ #180
> Call Trace:
> [<ffffffff8106ec94>] ? warn_slowpath_common+0x85/0x9d
> [<ffffffff8106ed4f>] ? warn_slowpath_fmt+0x46/0x48
> [<ffffffff81263d6c>] ? list_del+0xc0/0xed
> [<ffffffff81106d9d>] ? migrate_pages+0x26f/0x357
> [<ffffffff81100e18>] ? compaction_alloc+0x0/0x2dc
> [<ffffffff8110150d>] ? compact_zone+0x391/0x5c4
> [<ffffffff81101905>] ? compact_zone_order+0xc2/0xd1
> [<ffffffff815c321e>] ? _raw_spin_unlock+0xe/0x10
> [<ffffffff810dc446>] ? kswapd+0x5c8/0x88f
> [<ffffffff810dbe7e>] ? kswapd+0x0/0x88f
> [<ffffffff81089ce8>] ? kthread+0x82/0x8a
> [<ffffffff810347d4>] ? kernel_thread_helper+0x4/0x10
> [<ffffffff81089c66>] ? kthread+0x0/0x8a
> [<ffffffff810347d0>] ? kernel_thread_helper+0x0/0x10
> ---[ end trace 5c6b7933d16b301f ]---
uh-oh. Does disabling CONFIG_COMPACTION make this go away (requires
disabling CONFIG_TRANSPARENT_HUGEPAGE first).
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next parent reply other threads:[~2011-01-17 2:31 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1295225684-sup-7168@think>
[not found] ` <AANLkTikBamG2NG6j-z9fyTx=mk6NXFEE7LpB5z9s6ufr@mail.gmail.com>
[not found] ` <4D339C87.30100@fusionio.com>
[not found] ` <1295228148-sup-7379@think>
[not found] ` <AANLkTimp6ef0W_=ijW=CfH6iC1mQzW3gLr1LZivJ5Bmd@mail.gmail.com>
[not found] ` <AANLkTimr3hN8SDmbwv98hkcVfWoh9tioYg4M+0yanzpb@mail.gmail.com>
[not found] ` <1295229722-sup-6494@think>
2011-01-17 2:30 ` Andrew Morton [this message]
2011-01-17 2:41 ` hunting an IO hang Chris Mason
2011-01-17 5:11 ` Andrea Arcangeli
2011-01-17 13:48 ` Minchan Kim
2011-01-17 14:10 ` Chris Mason
2011-01-17 14:26 ` Andrea Arcangeli
2011-01-17 14:47 ` Minchan Kim
2011-01-17 15:09 ` Minchan Kim
2011-01-17 20:39 ` Andrea Arcangeli
2011-01-17 10:27 ` Mel Gorman
2011-01-17 13:21 ` Chris Mason
2011-01-17 13:50 ` Mel Gorman
2011-01-17 14:07 ` Chris Mason
2011-01-17 15:02 ` Chris Mason
2011-01-17 16:32 ` Johannes Weiner
2011-01-17 18:10 ` Mel Gorman
2011-01-17 17:09 ` Mel Gorman
2011-01-17 17:40 ` Chris Mason
2011-01-17 18:24 ` Linus Torvalds
2011-01-17 21:23 ` Chris Mason
2011-01-17 23:03 ` Mel Gorman
2011-01-18 0:30 ` Shaohua Li
2011-01-17 23:02 ` Linus Torvalds
2011-01-17 23:13 ` Minchan Kim
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