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Date:      Wed, 19 Apr 2000 10:36:06 +0930
From:      Greg Lehey <grog@lemis.com>
To:        =?iso-8859-1?Q?S=F8ren_Schmidt?= <sos@freebsd.dk>
Cc:        Chad David <davidc@acns.ab.ca>, freebsd-hackers@FreeBSD.ORG
Subject:   Re: vinum raid5 panics
Message-ID:  <20000419103605.C92373@freebie.lemis.com>
In-Reply-To: <200004181932.VAA01404@freebsd.dk>
References:  <Pine.BSF.4.21.0004181013440.22936-100000@lodge.guild.ab.ca> <200004181932.VAA01404@freebsd.dk>

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On Tuesday, 18 April 2000 at 21:32:34 +0200, Søren Schmidt wrote:
> It seems Chad David wrote:
>> I just put together a 5 disk raid5 system using
>> vinum on 4.0 from last Wed., and I am experiencing
>> random panics.  I can force the panic by working on
>> the filesystem, but sometimes just having it mounted
>> kills the machine.
>>
>> I compiled a debug kernel, and got a crash dump, but
>> I am not an expert at debugging crash dumps, so any
>> advice would be appreciated.
>>
>> Instead of dumping out fifty pages of kernel and
>> hardware config could anyone who is working on this
>> let me know what would be helpful...

Take a look at http://www.lemis.com/vinum/how-to-debug.html.

> I bet you see the same problem as others do....
> In my book vinum on 4.0 is plain broken.

I think that's overstating the case.  We've seen some problems with
Vinum RAID-5 on IDE drives, but I can't reproduce them here.  Søren's
looking at the problem.  As Søren also indicates, the fxp board seems
to aggravate the problem.

> If its an option for you, vinum under -current works better but its
> still far from stable.

I believe we have exactly the same problems in -CURRENT.  It's also
currently not being maintained.

Greg
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