From: Chris Mason <chris.mason@oracle.com>
To: Chester <somethingsome2000@gmail.com>
Cc: linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: btrfs unmountable after failed suspend
Date: Wed, 8 Feb 2012 15:26:58 -0500 [thread overview]
Message-ID: <20120208202658.GH8384@shiny> (raw)
In-Reply-To: <CAAE6i0ggEyVGh94L7n00Mm-YZTq26de2kZspU+AQKiaA=JD+8g@mail.gmail.com>
On Wed, Feb 08, 2012 at 01:22:19PM -0600, Chester wrote:
> On Wed, Feb 8, 2012 at 6:55 AM, Chris Mason <chris.mason@oracle.com> =
wrote:
> > On Tue, Feb 07, 2012 at 06:10:15PM -0600, Chester wrote:
> >> This is dmesg mounted with -o ro,recovery
> >> [ =A0 20.957392] exe used greatest stack depth: 4920 bytes left
> >> [ =A0145.340317] device label BtrfsLinux devid 1 transid 332442 /d=
ev/sda6
> >> [ =A0145.341702] btrfs: enabling auto recovery
> >> [ =A0145.341803] btrfs: disk space caching is enabled
> >> [ =A0152.457967] btrfs: corrupt leaf, bad key order:
> >> block=3D653297209344,root=3D1, slot=3D7
> >> [ =A0152.487933] btrfs: corrupt leaf, bad key order:
> >> block=3D653297209344,root=3D1, slot=3D7
> >> [ =A0152.488326] ------------[ cut here ]------------
> >> [ =A0152.488549] kernel BUG at fs/btrfs/extent-tree.c:5797!
> >
> > Well, this isn't good. =A0If you can run btrfs-zero-log it'll get p=
ast
> > this part, but I'd suggest a fsck run to see if there are other
> > corrupted blocks.
> I've already tried the -o recovery option at mount. I was told it doe=
s
> the same as btrfs-zero-log (but probably less destructive). Just a
It does zero the log, but looks like it does so a little too late. The
mount -o recovery code zeros it if we failed to read some of the tree
roots, but you're hitting the tree log before we fail. Long story
short, you need to btrfs-zero-log ;)
> quick question: Will the release of btrfsck later this month be able
> to fix these corruptions?
=46ixing the key ordering is pretty easy, I can do that here. But I'll
need to see the fsck output to say if the rest is fixed in the current
code.
> >
> > Bad key ordering is usually from memory corruption, so this block
> > probably isn't alone.
> Yeah. Could be from using zcache. I haven't had a problem with it
> until I tried to suspend to RAM though.
Could be, I'd suggest running with CONFIG_DEBUG_PAGE_ALLOC. You might
also just have bad ram.
-chris
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next prev parent reply other threads:[~2012-02-08 20:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-07 22:58 btrfs unmountable after failed suspend Chester
2012-02-07 23:22 ` Chester
2012-02-08 0:10 ` Chester
2012-02-08 12:55 ` Chris Mason
2012-02-08 19:22 ` Chester
2012-02-08 20:26 ` Chris Mason [this message]
2012-02-08 20:46 ` Chester
2012-02-09 0:17 ` Chester
2012-02-10 0:54 ` Chester
2012-02-10 1:32 ` Chris Mason
2012-02-10 1:40 ` Chester
2012-02-10 21:27 ` Chris Mason
2012-02-11 21:42 ` Chester
2012-03-31 2:32 ` Chester
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