Date: Wed, 11 Feb 2004 22:04:05 +0100 From: "Petr Holub" <hopet@ics.muni.cz> To: "John Baldwin" <jhb@FreeBSD.org>, "Dag-Erling Smrrgrav" <des@des.no> Cc: current@FreeBSD.org Subject: RE: storm of stray interrupts Message-ID: <02fe01c3f0e2$95087360$2136fb93@kloboucek> In-Reply-To: <200402111316.50941.jhb@FreeBSD.org>
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> Wrong, his BIOS just sucks and doesn't provide info on how to route drm0's
> interrupt when using ACPI. drm0 is routed to IRQ 16, but we end up using the
> ATPIC interrupt 11 to try and route it instead due to his broken BIOS. Since
> PCI interrupts are level triggered, this means that as soon as drm0
> interrupts, it storms on IRQ 16 since drm0's ISR never gets called.
OK---thanks. I've disabled ACPI (since disabling APIC results in loss of
SMP) and it works fine (except for no virtual hyperthreaded processors).
BTW: would it be possible to make drm use IRQ 16 by hinting (e.g. in
device.hints)?
Best,
Petr
================================================================
Petr Holub
CESNET z.s.p.o. Supercomputing Center Brno
Zikova 4 Institute of Compt. Science
162 00 Praha 6, CZ Masaryk University
Czech Republic Botanicka 68a, 60200 Brno, CZ
e-mail: Petr.Holub@cesnet.cz phone: +420-549493944
fax: +420-541212747
e-mail: hopet@ics.muni.cz
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