[9199] in linux-scsi channel archive
Re: Feature in ncr53c8xx/sym53c8xx driver
daemon@ATHENA.MIT.EDU (Miquel van Smoorenburg)
Fri Jul 14 08:56:50 2000
Date: Fri, 14 Jul 2000 14:46:10 +0200
From: Miquel van Smoorenburg <miquels@cistron.nl>
To: =?iso-8859-1?Q?G=E9rard_Roudier?= <groudier@club-internet.fr>
Cc: linux-scsi@vger.rutgers.edu
Message-ID: <20000714144610.A24613@cistron.nl>
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In-Reply-To: <Pine.LNX.4.10.10007141350520.1227-100000@linux.local>; from groudier@club-internet.fr on Fri, Jul 14, 2000 at 02:01:52PM +0200
According to Gérard Roudier:
> PCI interrupt lines are REQUIRED be configured for LEVEL SENSITIVE.
>
> (level-triggerred is sometimes used in lieu of level-sensitive)
> This applies to ALL PCI devices that support interrupts.
>
> You IRQ configuration for the SYMBIOS devices is _seriously_ broken.
> A system that works more than a couple of seconds with PCI interrupt
> misconfigured to EDGE is kind of miracle that always surprises me.
Thanks.
I suspected something like that, but in the AMI bios there is no way
I can change those settings. Neither in the main setup or in the
SCSI BIOS setup. It's simply how the AMI board sets itself up.
(AMI Megarum II board, BIOS release 774-031400 i.e. the latest).
Do you know of any way to fix that ? Perhaps a bug in the APIC
setup in the kernel, or a bug in the board itself?
Thanks for any insights...
Mike.
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