From: Andi Kleen <ak@muc.de>
To: Len Brown <len.brown@intel.com>
Cc: linux-kernel@vger.kernel.org, Allen Martin <AMartin@nvidia.com>
Subject: Re: IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH] for idle=C1halt, 2.6.5
Date: Fri, 16 Apr 2004 01:07:56 +0200 [thread overview]
Message-ID: <m3k70gx2k3.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <1LlEY-36q-11@gated-at.bofh.it> (Len Brown's message of "Thu, 15 Apr 2004 22:30:16 +0200")
Len Brown <len.brown@intel.com> writes:
> While I don't want to get into the business of maintaining
> a dmi_scan entry for every system with this issue, I think
> it might be a good idea to add a couple of example entries
> for high volume systems for which there is no BIOS fix available.
Or do a generic fix: check for the PCI-ID of the Nforce2 and when
it is true and the timer is wrong just correct it. That's ugly,
but it's probably the best solution for such a common issue
(and the IO-APIC code is already filled with workarounds anyways)
One problem is that this likely must happen before the PCI quirks
run. In the x86-64 code I have special "early PCI scanning" code
for this that could be copied. I don't have a Nforce2, but when
someone is willing to test I can do a patch for this.
-Andi
P.S.: This problem of reference BIOS bugs getting haunting Linux
even after they are long fixed is unfortunately common :-(
next parent reply other threads:[~2004-04-15 23:08 UTC|newest]
Thread overview: 73+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1KkKQ-2v9-9@gated-at.bofh.it>
[not found] ` <1Kqdx-6E1-5@gated-at.bofh.it>
[not found] ` <1KH4I-3W9-11@gated-at.bofh.it>
[not found] ` <1LgOQ-7px-3@gated-at.bofh.it>
[not found] ` <1LlEY-36q-11@gated-at.bofh.it>
2004-04-15 23:07 ` Andi Kleen [this message]
2004-04-21 22:00 ` Len Brown
2004-05-04 20:38 Jesse Allen
2004-05-04 21:14 ` Craig Bradney
-- strict thread matches above, loose matches on Subject: below --
2004-05-03 22:09 Allen Martin
2004-05-03 23:11 ` Bartlomiej Zolnierkiewicz
2004-05-04 8:28 ` Prakash K. Cheemplavam
2004-05-04 21:10 ` Jeff Garzik
2004-05-04 21:29 ` Bartlomiej Zolnierkiewicz
2004-05-05 12:14 ` Ross Dickson
2004-05-05 12:27 ` Ian Kumlien
2004-05-05 13:12 ` Ross Dickson
2004-05-05 13:23 ` Ian Kumlien
2004-05-05 12:58 ` Maciej W. Rozycki
2004-05-05 12:48 ` Patrick Dreker
2004-05-05 13:34 ` Patrick Dreker
2004-05-05 11:24 ` Ross Dickson
2004-05-05 12:18 ` Ian Kumlien
2004-05-05 12:52 ` Ross Dickson
2004-05-05 13:08 ` Ian Kumlien
2004-05-06 1:50 ` Jesse Allen
2004-05-03 8:08 Allen Martin
2004-04-23 1:30 Jesse Allen
2004-05-07 4:47 ` Richard James
2004-05-07 7:13 ` Craig Bradney
2004-05-08 5:33 ` Richard James
2004-04-13 1:17 IO-APIC on nforce2 Ross Dickson
2004-04-13 7:03 ` Ross Dickson
2004-04-14 1:02 ` IO-APIC on nforce2 [PATCH] Len Brown
2004-04-15 15:10 ` IO-APIC on nforce2 [PATCH] + [PATCH] for nmi_debug=1 + [PATCH] for idle=C1halt, 2.6.5 Ross Dickson
2004-04-15 20:17 ` Len Brown
2004-04-15 21:04 ` Craig Bradney
2004-04-21 20:22 ` Len Brown
2004-04-21 20:33 ` Ian Kumlien
2004-04-21 20:45 ` Craig Bradney
2004-04-21 21:28 ` Prakash K. Cheemplavam
2004-04-21 22:41 ` Len Brown
2004-04-22 7:26 ` Prakash K. Cheemplavam
2004-04-22 14:58 ` Len Brown
2004-04-22 8:45 ` Craig Bradney
2004-04-22 15:03 ` Len Brown
2004-04-22 20:50 ` Craig Bradney
2004-04-22 8:50 ` Arjen Verweij
2004-04-22 16:39 ` Jesse Allen
2004-04-22 17:21 ` Len Brown
2004-04-22 21:29 ` Len Brown
2004-04-23 8:48 ` Prakash K. Cheemplavam
2004-04-23 9:01 ` Arjen Verweij
2004-04-23 9:08 ` Prakash K. Cheemplavam
2004-04-23 9:11 ` Prakash K. Cheemplavam
2004-04-23 12:18 ` Maciej W. Rozycki
2004-04-26 11:41 ` Ross Dickson
2004-04-27 17:02 ` Arjen Verweij
2004-04-27 17:35 ` Ian Kumlien
2004-04-27 18:00 ` Len Brown
2004-04-27 18:24 ` Arjen Verweij
2004-04-27 18:51 ` Jussi Laako
2004-04-28 11:33 ` Ross Dickson
2004-04-28 20:59 ` Jesse Allen
2004-04-29 11:44 ` Ross Dickson
2004-04-29 11:54 ` Maciej W. Rozycki
2004-04-29 12:00 ` Jamie Lokier
2004-04-29 12:26 ` Maciej W. Rozycki
2004-04-29 11:57 ` Jamie Lokier
2004-04-29 12:16 ` Craig Bradney
2004-04-29 20:24 ` Jesse Allen
2004-04-29 20:31 ` Prakash K. Cheemplavam
2004-05-03 20:45 ` Jesse Allen
2004-05-17 15:26 ` Prakash K. Cheemplavam
2004-05-17 19:32 ` Craig Bradney
2004-05-17 19:37 ` Prakash K. Cheemplavam
2004-05-17 19:57 ` Craig Bradney
2004-04-27 21:31 ` Prakash K. Cheemplavam
2004-04-28 11:26 ` Prakash K. Cheemplavam
2004-05-01 6:51 ` Prakash K. Cheemplavam
2004-04-15 21:56 ` Arjen Verweij
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