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From: Eric Sandeen <sandeen@sandeen.net>
To: Riku Paananen <riku.paananen@helsinki.fi>
Cc: xfs@oss.sgi.com
Subject: Re: xfs_repair hangs at Phase 6
Date: Fri, 11 Sep 2009 10:51:27 -0500	[thread overview]
Message-ID: <4AAA71FF.3060706@sandeen.net> (raw)
In-Reply-To: <4AAA15A6.8070700@helsinki.fi>

Riku Paananen wrote:
> Hello.
> 
> I have a 39TB xfs filesystem in a SAN that got corrupted. The reasons 
> for the corruption are unclear. I've been trying to fix it using 
> xfs_repair but the repair operation always hangs at Phase 6 "traversing 
> filesystem ...".

Ok, so strace was stuck?

Can you try again with -P?

If that fails can you try again with -P -o bhashsize=1024 ?

(or so; 1024 is the default, you could double it again if it still hangs)

You might also attach gdb and see where it is.

If increasing the bhashsize fixes it then I probably know what the bug 
is (though not yet the solution...)

If you want to provide an xfs_metadump image of it from before you 
repair it, I could test any eventual fix against that.

thanks,
-Eric

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  parent reply	other threads:[~2009-09-11 15:50 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-11  9:17 xfs_repair hangs at Phase 6 Riku Paananen
2009-09-11  9:58 ` Emmanuel Florac
2009-09-11 15:51 ` Eric Sandeen [this message]
2009-09-14  5:08   ` Riku Paananen

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