From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Andi Kleen <andi@firstfloor.org>
Cc: "Maciej W. Rozycki" <macro@linux-mips.org>,
Ingo Molnar <mingo@elte.hu>,
Linus Torvalds <torvalds@linux-foundation.org>,
"Rafael J. Wysocki" <rjw@sisk.pl>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Len Brown <lenb@kernel.org>,
Jason Vas Dias <jason.vas.dias@gmail.com>
Subject: Re: [PATCH] x86 ACPI: Blacklist two HP machines with buggy BIOSes (Re: 2.6.27-rc8+ - first impressions)
Date: Tue, 7 Oct 2008 12:45:00 +0100 [thread overview]
Message-ID: <20081007114500.GA6773@srcf.ucam.org> (raw)
In-Reply-To: <20081007053808.GB20740@one.firstfloor.org>
On Tue, Oct 07, 2008 at 07:38:08AM +0200, Andi Kleen wrote:
> Also calling the workaround a BIOS bug is just unfair in this case. It really
> isn't.
The BIOS bug in these machines is that they set the thermal trip points
to 16 degrees C if the APIC is set up in a specific way. It's specific
to the HPs and it was there in the initial BIOS release - before anyone
added workarounds for the SB700 issue. It's clearly and unambiguously
broken, and it's clearly the BIOS's fault. However, it's also clearly
our responsibility to avoid triggering it on this hardware.
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2008-10-07 11:45 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-05 18:36 2.6.27-rc8+ - first impressions Dmitry Torokhov
2008-10-05 18:59 ` Rafael J. Wysocki
2008-10-05 19:06 ` Dmitry Torokhov
2008-10-05 19:19 ` Rafael J. Wysocki
2008-10-05 19:27 ` Thomas Gleixner
2008-10-05 21:18 ` Dmitry Torokhov
2008-10-05 21:40 ` Parag Warudkar
2008-10-05 22:29 ` Rafael J. Wysocki
2008-10-06 6:23 ` Dmitry Torokhov
2008-10-06 9:59 ` [PATCH] x86 ACPI: Blacklist two HP machines with buggy BIOSes (Re: 2.6.27-rc8+ - first impressions) Rafael J. Wysocki
2008-10-06 14:54 ` Linus Torvalds
2008-10-06 15:00 ` Ingo Molnar
2008-10-06 17:17 ` Rafael J. Wysocki
2008-10-06 17:51 ` Maciej W. Rozycki
2008-10-06 17:54 ` Ingo Molnar
2008-10-06 20:59 ` Andi Kleen
2008-10-06 21:39 ` Maciej W. Rozycki
2008-10-06 22:11 ` [PATCH] x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC Andreas Herrmann
2008-10-07 3:41 ` Ingo Molnar
2008-10-07 3:51 ` Dmitry Torokhov
2008-10-07 4:57 ` Ingo Molnar
2008-10-07 11:19 ` Dmitry Torokhov
2008-10-07 15:25 ` Maciej W. Rozycki
2008-10-07 20:31 ` Rafael J. Wysocki
2008-10-06 23:10 ` [PATCH] x86 ACPI: Blacklist two HP machines with buggy BIOSes (Re: 2.6.27-rc8+ - first impressions) Andi Kleen
2008-10-07 1:35 ` Maciej W. Rozycki
2008-10-07 4:42 ` Ingo Molnar
2008-10-07 5:38 ` Andi Kleen
2008-10-07 11:45 ` Matthew Garrett [this message]
2008-10-07 12:04 ` Ingo Molnar
2008-10-08 8:23 ` Peter Zijlstra
2008-10-06 17:15 ` Rafael J. Wysocki
2008-10-06 17:54 ` Maciej W. Rozycki
2008-10-05 19:10 ` 2.6.27-rc8+ - first impressions Arjan van de Ven
2008-10-06 6:28 ` Dmitry Torokhov
2008-10-06 19:53 ` Andreas Herrmann
2008-10-07 3:42 ` Dmitry Torokhov
2008-10-07 9:10 ` Andreas Herrmann
2008-10-07 11:37 ` Dmitry Torokhov
2008-10-07 12:07 ` Parag Warudkar
2008-10-08 1:07 ` Dmitry Torokhov
2008-10-07 13:19 ` Andreas Herrmann
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