Date: Sat, 17 Apr 2004 09:20:28 -0400
From: Ben Collins <bcollins@debian.org>
To: Marc Giger <gigerstyle@gmx.ch>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Linux on UltraSparcII E450
Message-ID: <20040417132027.GE3647@phunnypharm.org>
References: <20040417105303.7936e413@vaio.gigerstyle.ch>
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On Sat, Apr 17, 2004 at 10:53:03AM +0200, Marc Giger wrote:
> Hi All,
> 
> Last week I had the honor to install Linux on a E450 with 2 cpu's. All
> went fine at first. Long compiling sessions were no problem for the
> machine. Later we installed 16 additional SCSI disks and we built 
> 4 x Soft-RAID5 groups with 4 disks each.
> After some time during the sync processes the machine stops responding.
> Simply dead. The same thing happens after every boot when the sync
> process is in action.
> 
> My question now is: Is it a hardware or a kernel problem? I now it isn't
> a simple question with the given infos.
> Is it possible that the 4 parallel sync processes are to much for the
> SCSI (standard LSI) controllers?
> I assume that the kernel RAID5 code is stable on sparc?!

Try enabling some debug, like spinlock debug and such. See if that spits
out anything interesting.

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