Messages in this thread | | | Date | Thu, 18 Mar 2004 12:30:17 +0100 | From | Lionel Bouton <> | Subject | SiS APIC, hacker looking for docs/help, was : Re: 2.6.4 under heavy ioload disables sis5513 DMA |
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Michael Frank wrote the following on 03/18/2004 11:52 AM : > Happens every few hours with heavy io and cpu load: > > hda: dma_timer_expiry: dma status == 0x21 > hda: DMA timeout error > hda: dma timeout error: status=0xd0 { Busy } > > hda: DMA disabled > ide0: reset: success > > DMA auto-reenabled by boot time hdparm -k >
Hum, I'm wondering if -k is fully functionnal (hdparm man page hints that this isn't supported by all drives and I don't remember any success/failure stories here).
> lspci -vv > > 00:02.5 IDE interface: Silicon Integrated Systems [SiS] 5513 [IDE]
SiS chipset : is APIC functionnal ? (cat /proc/interrupts)
If not, I believe this might be the problem and the solutions still eludes me (I don't think the problem lies in the IDE driver but in APIC support).
I've 2 SiS based mainboards forced to use XT-PIC (SiS735 and SiS645 based) here but without this kind of problems (everything works until I start to add to many PCI cards in one system...). I'm willing to start hacking around (mostly on the 645 as the 735 is an always-on system).
Is reading the arch/i386/kernel/*pic* files (and probably others) enough to start or is there somewhere else to look for information ?
Regards, -- Lionel Bouton - inet6 --------------------------------------------------------------------- o Siege social: 51, rue de Verdun - 92158 Suresnes / _ __ _ Acces Bureaux: 33 rue Benoit Malon - 92150 Suresnes / /\ /_ / /_ France \/ \/_ / /_/ Tel. +33 (0) 1 41 44 85 36 Inetsys S.A. Fax +33 (0) 1 46 97 20 10
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