From: Chris Mason <chris.mason@oracle.com>
To: Skylar Burtenshaw <daninfuchs@gmail.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: Can't mount, power failure - recoverable?
Date: Sat, 17 Mar 2012 08:18:32 -0400 [thread overview]
Message-ID: <20120317121832.GF19217@shiny> (raw)
In-Reply-To: <loom.20120317T051243-551@post.gmane.org>
On Sat, Mar 17, 2012 at 04:24:02AM +0000, Skylar Burtenshaw wrote:
> Hey all. First and foremost, great work on the filesystem. Love it. That is,
> until this...
>
> AGES ago, I had a power failure. I had 22 drives in one BTRFS filesystem. I
> know, dumb idea given that it's an experimental FS, but it's not important data,
> just.....LOTS of it. A dozen terabytes or so.
Which kernel was used during the power outage? If 3.2 or higher you may
be able to mount -o recovery
>
> Now when I try to mount it with all present kernels (up to 3.2.0) I get several
> minutes of disk churning, and a kernel stack trace. Every tool I throw at it
> fails. find-root only shows one tree (at the very end) after complaining about
> blocks seeming great, but generations don't match for ages. The btrfsck from the
> stable tree lists twenty "item # key" messages, then stops with "failed to find
> block number 20975616" and aborts every time.
We'll definitely need the stack trace, and the tool output. From there
I'll ask for more.
-chris
next prev parent reply other threads:[~2012-03-17 12:18 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-17 4:24 Can't mount, power failure - recoverable? Skylar Burtenshaw
2012-03-17 7:51 ` cwillu
2012-03-17 19:06 ` Skylar Burtenshaw
2012-03-18 15:16 ` Chris Mason
2012-03-18 18:49 ` Skylar Burtenshaw
2012-03-19 18:02 ` Chris Mason
2012-03-20 3:06 ` Skylar Burtenshaw
2012-03-26 8:34 ` Skylar Burtenshaw
2012-03-26 8:43 ` Hugo Mills
2012-03-26 8:51 ` Skylar Burtenshaw
2012-03-26 8:44 ` Fajar A. Nugraha
2012-03-26 8:49 ` Skylar Burtenshaw
2012-03-26 8:56 ` Fajar A. Nugraha
2012-07-13 12:23 ` Martin Steigerwald
2012-07-13 12:28 ` Hugo Mills
2012-07-13 14:38 ` Martin Steigerwald
2012-07-14 1:01 ` Skylar Burtenshaw
2012-07-15 11:20 ` Martin Steigerwald
2012-07-15 11:30 ` Hugo Mills
2012-03-17 10:31 ` Hugo Mills
2012-03-17 19:06 ` Skylar Burtenshaw
2012-03-17 12:18 ` Chris Mason [this message]
2012-03-17 19:06 ` Skylar Burtenshaw
2012-07-12 0:47 ` Skylar Burtenshaw
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