RE: storm of stray interrupts

From: Petr Holub <hopet_at_ics.muni.cz>
Date: Wed, 11 Feb 2004 22:04:05 +0100
> 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_at_cesnet.cz               phone: +420-549493944
                                             fax: +420-541212747
                                       e-mail: hopet_at_ics.muni.cz
Received on Wed Feb 11 2004 - 12:04:01 UTC

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