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Date: Fri, 19 Oct 2001 09:37:23 -0700 (PDT)
From: "Jeffrey W. Baker" <jwbaker@acm.org>
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To: Mario Mikocevic <mozgy@hinet.hr>
cc: <linux-kernel@vger.kernel.org>
Subject: Re: RAID and 2.4.12 ?
In-Reply-To: <20011019173434.A10220@danielle.hinet.hr>
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On Fri, 19 Oct 2001, Mario Mikocevic wrote:

> Hi,
>
> are there any known problems with software raid and kernel 2.4.12 ?
>
> I have several production servers (Dell poweredge 1550) with active
> kernels from range of 2.4.8/2.4.9/2.4.12. All of them are quite loaded
> with web/ftp/game/realmedia servers.
>
> Only combination of RAID and 2.4.12 gives me trouble, complete hang,
> no output, no ping. Unfortunately I can't reproduce it by will, sometimes
> it hangs just after few mins of uptime, sometimes after few hours.
>
> I _do_ have few servers running 2.4.12 quite realiably (not a single reboot yet)
> but without RAID on them (heavily loaded list server and very heavily loaded
> realmedia server).
>
> Combination of 2.4.9 and RAID works without any problem so far.

I only have anecdotal evidence, but 2.4.12 worked fine for my on a single
SCSI disk but as soon as I mounted my root device on RAID 0, the kernel
would oops  (after ~30 seconds up uptime) and all processes which write to
the disk would be unkillable.

I switched to 2.4.12-ac3 with no problems (yet).

-jwb

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