From: Andreas Steinmetz <ast@domdv.de>
To: Dan Hollis <goemon@anime.net>
Cc: linux-kernel@vger.kernel.org
Subject: Re: kernel 2.6.6 amd8111 apic bugs
Date: Thu, 01 Jul 2004 10:31:36 +0200 [thread overview]
Message-ID: <40E3CBE8.7060400@domdv.de> (raw)
In-Reply-To: <Pine.LNX.4.44.0406301533030.28684-100000@sasami.anime.net>
Dan Hollis wrote:
>>>>There seem to be regular dma timeouts:
>>>>hdc: dma_timer_expiry: dma status == 0x24
>>>>hdc: DMA interrupt recovery
>>>>hdc: lost interrupt
>>>>hda: dma_timer_expiry: dma status == 0x24
>>>>hda: DMA interrupt recovery
>>>>hda: lost interrupt
>>>>Hardware:
>>>>Opteron 140, Tyan Tomcat K8S (S2850)
>>>
>>>Try disabling ACPI (in .config or boot acpi=off iirc)
>>
>>I had that problem, but not with ACPI, only when I forced APIC on. It
>>was on the VIA controller which uses the same driver.
>
>
> Turns out it was apic and not acpi at all. Booting with ACPI but noapic
> and I no longer get any dma errors.
>
> Is the bug in the linux apic code or a hardware flaw in the opteron cpu?
> Or something else?
>
From the X86-64 patch release notes of Andi Kleen:
Reports that dual Tyan S2885 and S2880 can lock up when multiple IDE
channels are stressed in parallel. "noapic" or "ideX=serialize" seems to
work around it. Andre Hedrick thinks it's a generic bug/race in the IDE
code.
Looks like you have a similar problem on a UP board.
--
Andreas Steinmetz SPAMmers use robotrap@domdv.de
prev parent reply other threads:[~2004-07-01 8:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-06-30 22:36 kernel 2.6.6 amd8111 apic bugs Dan Hollis
2004-07-01 8:31 ` Andreas Steinmetz [this message]
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