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Re: XFS crash on linux raid

To: David Chinner <dgc@xxxxxxx>, xfs@xxxxxxxxxxx
Subject: Re: XFS crash on linux raid
From: Emmanuel Florac <eflorac@xxxxxxxxxxxxxx>
Date: Fri, 4 May 2007 09:06:13 +0200
In-reply-to: <20070504005922.GC32602149@melbourne.sgi.com>
Organization: Intellique
References: <20070503164521.16efe075@harpe.intellique.com> <20070504005922.GC32602149@melbourne.sgi.com>
Sender: xfs-bounce@xxxxxxxxxxx
Le Fri, 4 May 2007 10:59:22 +1000 vous écriviez:

> Where there any I/o errors reported before the shutdown?
> 

Nope. To make it clear : the problem can be reproduce on several
different systems, different motherboards, different drives, different
RAID controllers... This isn't a hardware problem.

> > On a similar hardware with 2 3Ware-9550 16x750GB striped together,
> > but running 2.6.17.13, I had a similar fs crash last week.
> > Unfortunately I don't have the logs at hand, but we where able to
> > reproduce several times the crash at home :  
> 
> Hmm - 750GB drives are brand new. i wouldn't rule out media issues
> at this point...

The problem is quite easily reproduced with 500GB drives too.
 
> > Filesystem "md0": XFS internal error xfs_btree_check_sblock at line
> > 336 of file fs/xfs/xfs_btree.c.  Caller 0xc01fb282 <c0214568>  
> 
> Memory corruption?

Tried with different RAMs, and the problem occurs on ECC RAM too.

> > 
> > Out of curiosity, I've tried to use reiserfs (just to see how it
> > compares regarding this). Reiserfs crashed before even writing
> > 100MB!  
> 
> That indicates there's something wrong other than the filesystem.
> I'd suggest making sure your raid arrays, memory, etc are all
> functioning correctly first.

They are. I've tested 5 different machines so far (Supermicro or Tyan
mobos, kingston RAM, Intel or AMD cpus, hitachi and seagate drives...)
 
> What platform are you running on? Are you running ia32 with 4k stacks?

Yes. I'll try this week 2.6.18.8 thoroughly and 2.6.20.11 too. Then
jfs, just to be sure.

-- 
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Emmanuel Florac               www.intellique.com   
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