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Date:      Wed, 2 Aug 2000 13:27:33 +0930
From:      Greg Lehey <grog@lemis.com>
To:        David Gilbert <dgilbert@velocet.ca>
Cc:        freebsd-stable@FreeBSD.ORG
Subject:   Re: Vinum corruption?
Message-ID:  <20000802132733.I36094@wantadilla.lemis.com>
In-Reply-To: <14727.38484.478097.382875@trooper.velocet.net>; from dgilbert@velocet.ca on Tue, Aug 01, 2000 at 11:32:36PM -0400
References:  <14727.38484.478097.382875@trooper.velocet.net>

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[Format recovered--see http://www.lemis.com/email/email-format.html]

Please don't wrap log messages.

On Tuesday,  1 August 2000 at 23:32:36 -0400, David Gilbert wrote:
> I got the following messages from a 4.0-RC machine today while playing
> with find on a vinum (RAID-5) partition with about 10 copies of the
> results of the "make release" tree:
>
> Aug  2 02:02:21 news /kernel: Data modified on freelist: word 0 of object 0xc2a01000 size 4096 previous type devbuf (0x0 != 0xdeadc0de)
> Aug  2 02:02:21 news /kernel: Data modified on freelist: word 0 of object 0xc2a01000 size 4096 previous type devbuf (0x0 != 0xdeadc0de)
> Aug  2 02:03:38 news /kernel: Data modified on freelist: word 9 of object 0xc315a000 size 8192 previous type devbuf (0x0 != 0xdeadc0de)
> Aug  2 02:03:38 news /kernel: Data modified on freelist: word 9 of object 0xc315a000 size 8192 previous type devbuf (0x0 != 0xdeadc0de)
>
> ... and that doesn't sound very good.

No, indeed.

> Soft updates is on, in this case.

There's nothing in the message which shows where this problem is
occurring.  We'd really need a dump.

> One thing I've noticed is that I often have to "rebuildparity" on
> the system.  I had a busy tar process running when I halted the
> system last ... and it's come up with a disk that fails vinum
> checkparity.

Yes, there was a problem there.  Upgrade to 4.1.

Greg
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