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Re: Is it possible the check an frozen XFS filesytem to avoid downtime

To: Martin Steigerwald <ms@xxxxxxxxx>
Subject: Re: Is it possible the check an frozen XFS filesytem to avoid downtime
From: Eric Sandeen <sandeen@xxxxxxxxxxx>
Date: Tue, 15 Jul 2008 10:27:39 -0500
Cc: Timothy Shimmin <tes@xxxxxxx>, xfs@xxxxxxxxxxx
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Martin Steigerwald wrote:

> Okay... we recommended the customer to do it the safe way unmounting the 
> filesystem completely. He did and the filesystem appear to be intact *phew*. 
> XFS appeared to detect the in memory corruption early enough.
> 
> Its a bit strange however, cause we now know that the server sports ECC RAM. 
> Well we will see what memtest86+ has to say about it.

in-memory corruption could mean, but certainly does not absolutely mean,
problematic memory.  It could be, and usually is, a plain ol' bug (in
xfs or elsewhere).

-Eric


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