From: Andrew de Quincey <adq_dvb@lidskialf.net>
To: Allen Martin <AMartin@nvidia.com>, "'Merlin Hughes'" <lnx@merlin.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] 2.4.23-pre4 add support for udma6 to nForce IDE drive r
Date: Sat, 20 Sep 2003 09:33:48 +0100 [thread overview]
Message-ID: <200309200933.48696.adq_dvb@lidskialf.net> (raw)
In-Reply-To: <8F12FC8F99F4404BA86AC90CD0BFB04F039F714A@mail-sc-6.nvidia.com>
On Saturday 20 September 2003 00:49, Allen Martin wrote:
> > Interesting; lots of ACPI edge-triggered interrupts:
> >
> > dagda:~# cat /proc/interrupts
> > CPU0
> > 0: 519365 IO-APIC-edge timer
> > 1: 16713 IO-APIC-edge keyboard
> > 2: 0 XT-PIC cascade
> > 8: 4 IO-APIC-edge rtc
> > 9: 0 IO-APIC-level acpi
> > 14: 863415 IO-APIC-edge ide0
> > 15: 201651 IO-APIC-edge ide1
> > 19: 306188 IO-APIC-level nvidia
> > 20: 57261 IO-APIC-level usb-ohci, eth0
> > 21: 0 IO-APIC-level ehci_hcd, NVidia nForce2
> > 22: 3 IO-APIC-level usb-ohci, ohci1394
> > NMI: 0
> > LOC: 519312
> > ERR: 0
> > MIS: 0
>
> Your interrupts look fine, this is the way they should be.
>
> > ... but no stability problems since the primary drive has been
> > running at UDMA133. Earlier UDMA100 freezes were completely
> > repeatable; identical kernel, just without your two patches.
>
> You can try downgrading your drive to udma5 to see if udma6 really does
> make it more stable (hdparm -X udma5 /dev/hdX) but I can't think of any
> reason why it should.
>
> > I take it that I should boot with noapic in future to be safe.
>
> I've been telling people to disable APIC / ACPI because of the interrupt
> problem, but your interrupts are fine, so I'd leave it alone. I'm curious,
> what version BIOS do you have?
ACPI/APIC should work on most nforce/nforce2 boards in 2.4.22 upwards. If not,
let me know, and I'll look into it.
next prev parent reply other threads:[~2003-09-20 8:33 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-09-19 23:49 Allen Martin
2003-09-20 2:26 ` Merlin Hughes
2003-09-20 8:33 ` Andrew de Quincey [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-09-19 23:08 Allen Martin
2003-09-19 23:34 ` Merlin Hughes
2003-09-18 4:09 Allen Martin
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