From: Mathieu Chouquet-Stringer <mathieu@csetco.com>
To: linux-btrfs@vger.kernel.org
Cc: sami.liedes@iki.fi, chris.mason@fusionio.com, sensille@gmx.net
Subject: GPF in read_extent_buffer while scrubbing on 3.7.0-rc8-00014-g27d7c2a
Date: Thu, 6 Dec 2012 15:34:58 +0100 [thread overview]
Message-ID: <20121206143458.GA24396@kashmir> (raw)
Hello,
Using the last couple of kernels (3.6 or 3.7), scrubbing my btrfs fs (which is
on a luks based lvm device) will always end up crashing my pc.
The error (screenshot: http://mathieu.csetco.com/btrfs-scrub-crash.jpeg) looks
very similar to this crash (that's why I'm Cc'ing Sami):
btrfs GPF in read_extent_buffer() while scrubbing with kernel 3.4.2
http://marc.info/?t=134127076600002&r=1&w=2
(I transcribed this from the picture)
Pid: 518, comm: btrfs-endio-met Tainted: G W 3.7.0-rc8-00014-g27d7c2a
RIP: 0010:[<fffffffff8136c186>] [<ffffffff8136c186>] memcpy+0x6/0x110
[...]
Call Trace:
[<ffffffff812aa8a3>] ? read_extent_buffer+0xc3/0x120
[<ffffffff812a15e2>] btrfs_node_key+0x22/0x30
[<ffffffff812dd150>] __readahead_hook.isra.5+0x3a0/0x3f0
[<ffffffff812dd544>] btree_readahead_hook+0x24/0x40
[<ffffffff81285a99>] btree_readpage_end_io_hook+0x139/0x290
[...]
Looking at the email thread, I can't seem to be able to find a happy
ending. It looks like this could still be open.
Here's my btrfs device:
Label: none uuid: 02c68790-78a5-418a-901c-59eda67b0e6e
Total devices 1 FS bytes used 197.60GB
devid 1 size 460.41GB used 289.07GB path /dev/dm-2
The output of fi df /:
Data: total=269.00GB, used=195.88GB
System, DUP: total=32.00MB, used=32.00KB
System: total=4.00MB, used=0.00
Metadata, DUP: total=10.00GB, used=1.71GB
Anything I could do to help diagnose the issue? I've seen Chris
suggested to enable slub (I use slub, not slab) and pagealloc debug.
What else?
--
Mathieu Chouquet-Stringer mathieu@csetco.com
The sun itself sees not till heaven clears.
-- William Shakespeare --
next reply other threads:[~2012-12-06 14:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 14:34 Mathieu Chouquet-Stringer [this message]
2012-12-10 22:21 ` GPF in read_extent_buffer while scrubbing on 3.7.0-rc8-00014-g27d7c2a Mathieu Chouquet-Stringer
2012-12-14 18:11 ` Mathieu Chouquet-Stringer
2013-01-03 17:26 ` Jan Schmidt
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