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Re: Kernel OOPS and several filed nullified

To: Blake Matheny <matheny@xxxxxxxxxxx>
Subject: Re: Kernel OOPS and several filed nullified
From: Austin Gonyou <austin@xxxxxxxxxxxxxxx>
Date: 23 Jan 2002 18:18:34 -0600
Cc: Seth Mos <knuffie@xxxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <20020123225816.GA43826@xxxxxxxxxxxxxxxx>
References: <20020123225816.GA43826@xxxxxxxxxxxxxxxx>
Sender: owner-linux-xfs@xxxxxxxxxxx
I had similar issues when using the preempt. I stopped using it. Can't
say much more than that, other than many apps I used actually had
problems running under preempt. 

On Wed, 2002-01-23 at 16:58, Blake Matheny wrote:
> Eric Sandeen was good enough to email me a utility which looks for
> null'd files. That found a few of them. Most of /usr/local/lib
> (anything that had been open ~30 seconds before going to single user
> mode) got the whack. When the system oops'd I didn't have any files
> open. But it seems like anything that had been open up to 30 seconds
> before the crash was corrupted. 'Recovery' took place after reboot. Is
> there any chance that rmap11c, preempt or some of the hash patches I'm
> using is causing this behaviour? I was running XFS for months with no
> lost files. Recently any time my system crashes though I lose
> something. Thanks.
> -Blake
> 
> Whatchu talkin' 'bout, Willis?
> > At 14:38 23-1-2002 -0500, Blake Matheny wrote:
> > >I am using the latest XFS from CVS with kernel version 2.4.17. I'm
> > >also using the rmap and preempt patches. Recently I had a kernel oops
> > >when I was in single user mode, kdb reported it being at line 812 in
> > >page_buf_io.c from the xfs source. When this happened several files
> > >got hosed, including my /etc/fstab.
> > >First, is this a known problem or is there something I can do to fix
> > >it? Looking at the source there didn't appear to be a blatently
> > >obvious fix. Second, is there some way to see which file were filled
> > >with null bytes? Several applications are no longer able to run, it
> > >appears that a few different libraries were also hosed. I'm not on
> the
> > >list so please CC me if you have any answers. Thanks.
> > >-Blake
> > 
> > Did you edit some files with vi?
> > 
> > Yes? See FAQ
> > No? What were you busy with doing in single user mode? Did recovery
> take 
> > place after a reboot or did the fs need fixing?
> > 
> > Cheers
> > 
> > 
> > 
> > --
> > Seth
> > Every program has two purposes one for which
> > it was written and another for which it wasn't
> > I use the last kind.
-- 
Austin Gonyou
Systems Architect, CCNA
Coremetrics, Inc.
Phone: 512-698-7250
email: austin@xxxxxxxxxxxxxxx

"It is the part of a good shepherd to shear his flock, not to skin it."
Latin Proverb

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