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From: Grant Grundler <grundler@parisc-linux.org>
To: Stuart Brady <sdbrady@ntlworld.com>
Cc: parisc-linux@lists.parisc-linux.org
Subject: Re: [parisc-linux] Hanging with kernels >= 2.4.22
Date: Wed, 18 Feb 2004 23:29:07 -0700	[thread overview]
Message-ID: <20040219062907.GC13916@colo.lackof.org> (raw)
In-Reply-To: <20040218235225.GA1623@calypso>

On Wed, Feb 18, 2004 at 11:52:25PM +0000, Stuart Brady wrote:
> I'm having problems with kernels >= 2.4.22 on a 715/100.

[ delete descriptions of hang symptoms ]

Stuart,
All your symptoms point at disk IO hanging.
Setting the default queue depth to 1 would be worth trying.
I've forgotten the details for setting queue depth.
 
search parisc-linux mailing list archives "scsi queue tags".
http://lists.parisc-linux.org/pipermail/parisc-linux/2004-January/022087.html

btw, 715/50 is NOT the same as 715/100.
715/100 should have "coherent" DMA and 715/50 does not.

Maybe a FAQ entry for "715/xxx hangs" could be your first contribution?

hth,
grant

  reply	other threads:[~2004-02-19  6:29 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-02-18 23:52 [parisc-linux] Hanging with kernels >= 2.4.22 Stuart Brady
2004-02-19  6:29 ` Grant Grundler [this message]
2004-02-21  7:58   ` Stuart Brady
2004-02-21 17:05     ` Carlos O'Donell
2004-02-21 18:24       ` Matthew Wilcox
2004-02-22  6:04         ` Carlos O'Donell
2004-02-22 14:46       ` Riccardo
2004-02-22 15:30         ` Joel Soete
2004-02-22 17:16           ` Riccardo
2004-02-22 17:54             ` Joel Soete
2004-02-22  6:21     ` Grant Grundler

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