Messages in this thread | | | Date | Wed, 06 Dec 2006 09:15:03 +0900 | From | Tejun Heo <> | Subject | Re: [PATCH] ide-cd: Handle strange interrupt on the Intel ESB2 |
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Alan wrote: > On Wed, 6 Dec 2006 00:23:03 +0100 > "Bartlomiej Zolnierkiewicz" <bzolnier@gmail.com> wrote: > >> Looks good but aren't this trying to fix the same ICH >> issue that is fixed in libata by ap->ops->irq_clear(ap)? >> >> [ please see Tejun's mail: http://lkml.org/lkml/2006/11/15/94 ] >> >> If so shouldn't we apply this fix for all ICH5/6/7/8 chipsets? > > Possibly. Thats one reason I made it a quirk bit. I'd certainly expect it > to be a group of related chipsets. > >> Also shouldn't the fix be in IRQ handler? Currently the fix is limited >> to ide-cd driver which seems to be the wrong place as the problem >> is supposed to happen also when using other IDE device drivers >> or/and other ATA/ATAPI devices? > > The problem has only be observed with CD devices doing PIO ATAPI > commands. I am not aware of an Intel errata document that characterises > this errata so anything else so cannot guess further. Perhaps Intel can > advise ?
FWIW, on my ICH7, the IRQ storm does occur on ATA devices.
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