On Sun, Jul 31, 2011 at 10:01:50AM +0200, Providence M. SALUMU wrote:

A few days back, I had a hard reset of my computer while syncing my
data with rsync -avz. I am using btrfs as the rootfs, and since then I
can't mount my filesystem anymore. mount -t btrfs segfaults!
Btrfs version in use and dmesg traces follow...

Can someone help figure out what is wrong?

[snip]

Call Trace:
[<ffffffffa0536f70>] ? walk_down_log_tree+0x204/0x3eb [btrfs]
[<ffffffffa053721f>] ? walk_log_tree+0xc8/0x213 [btrfs]
[<ffffffffa05382b4>] ? btrfs_recover_log_trees+0x1d3/0x2e0 [btrfs]

   This looks like a corrupt log tree. Fortunately, we have a tool
that will deal with this: grab a copy of the btrfs-progs sources,
build btrfs-zero-log, and run that on your filesystem. That _should_
get you to the point of being able to mount it.

   Hugo.

-- 
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