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From: Balazs Ree <ree@ree.hu>
To: linux-kernel@vger.kernel.org
Subject: Re: HPT370 locks up (2.4/2.6)
Date: Thu, 01 Apr 2004 12:32:59 +0200	[thread overview]
Message-ID: <pan.2004.04.01.10.32.57.982363@ree.hu> (raw)
In-Reply-To: <200403311054.01626.vda@port.imtp.ilyichevsk.odessa.ua>

On Wed, 31 Mar 2004 10:54:01 +0200, Denis Vlasenko wrote:
> You may need to serialize channel usage in driver code if it indeed
> happens when both channels are working at the same time.

Thank you, this tip was really useful.

Setting #define HPT_SERIALIZE_IO in hpt366.h solves the lockups on my
machine (ABIT KT7-RAID). There seems to be a small (10-20%) performance
penalty involved according to the benchmarks on my RAID1 setup, but that's
acceptable.

If this solves the "hdd led stays on" freezups for others with HPT370
(rev. 3) on motherboards with possibly buggy IRQ handling, then maybe this
option could even be made settable through kernel config, together with an
appropriate explanation.

-- 
Balazs REE



  reply	other threads:[~2004-04-01 10:46 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-03-30 12:36 Balazs Ree
2004-03-31  8:54 ` Denis Vlasenko
2004-04-01 10:32   ` Balazs Ree [this message]
2004-04-01 11:40     ` Jaco Kroon
2004-04-01 18:14       ` Balazs Ree
2004-03-30 12:47 Balazs Ree

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