Re: xfs_repair segfault

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On Mon, Oct 07, 2013 at 01:09:09PM -0700, Viet Nguyen wrote:
> Thanks. That seemed to fix that bug.
> 
> Now I'm getting a lot of this:
> xfs_da_do_buf(2): XFS_CORRUPTION_ERROR

Right, that's blocks that are being detected as corrupt when they
are read. You can ignore that for now.

> fatal error -- can't read block 8388608 for directory inode 8628218

That's a corrupted block list of some kind - it should junk the
inode.

> Then xfs_repair exits.

I'm not sure why that happens. Is it exiting cleanly or crashing?
Can you take a metadump of the filesystem and provide it for someone
to debug the problems it causes repair?

> What I've been doing is what I saw in the FAQ where I would use xfs_db and
> write core.mode 0 for these inodes. But there are just so many of them. And
> is that even the right thing to do?

That marks the inode as "free" which effectively junks it and then
xfs_repair will free all it's extents next time it is run. Basically
you are removing the files from the filesystem and making them
unrecoverable.

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx

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