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Re: xfs_force_shutdown called from file fs/xfs/xfs_trans_buf.c

To: Eric Sandeen <sandeen@xxxxxxxxxxx>
Subject: Re: xfs_force_shutdown called from file fs/xfs/xfs_trans_buf.c
From: Timothy Shimmin <tes@xxxxxxx>
Date: Fri, 02 Nov 2007 15:37:45 +1100
Cc: Jay Sullivan <jpspgd@xxxxxxx>, xfs@xxxxxxxxxxx
In-reply-to: <472A87FA.7000804@sandeen.net>
References: <06CCEA2EB1B80A4A937ED59005FA855101AED1BE@svits26.main.ad.rit.edu> <472A87FA.7000804@sandeen.net>
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Eric Sandeen wrote:
Jay Sullivan wrote:

I ran xfs_repair -L on the FS and it could be mounted again,

Was it not even mountable before this, or why did you use the -L flag? If the log is corrupted that points to more problems... perhaps you've had some power loss & your write caches evaporated, and lvm doesn't do barriers?


-eric


BTW, I occasionally wonder about the reason for log corruptions. If we have an "evaporated" write cache that would stop a write from going but it wouldn't do a partial sector (< 512 byte) write, would it? I have presumed that sector writes complete or not and that is what the log code is based on.

OOI, Jay, how did it fail to mount - what was the log msg?
I presume you couldn't mount such that even the log couldn't be
replayed? Did it fail during replay?

--Tim


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