Messages in this thread | | | Date | Thu, 29 Nov 2007 18:03:22 -0600 | From | Robert Hancock <> | Subject | Re: Possibly SATA related freeze killed networking and RAID |
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Phillip Susi wrote: > Tejun Heo wrote: >> Agreed. Nobody cared on ATA controllers is usually very effective at >> taking the whole machine down. Is there any reason why we don't turn on >> irqpoll on turned off IRQs automatically? > > Why does a single spurious interrupt cause it to be shut down? I can > see if the interrupt is stuck on and keeps interrupting constantly, but > if it's just the occasional spurious interrupt, why not just ignore it > and move on?
I'm not certain offhand, but I think there may be such a threshold. However, an occasional spurious interrupt isn't likely. For a level-triggered interrupt, an unhandled interrupt will keep interrupting forever since nobody knows how to clear it (until we decide to disable the IRQ entirely).
-- Robert Hancock Saskatoon, SK, Canada To email, remove "nospam" from hancockr@nospamshaw.ca Home Page: http://www.roberthancock.com/
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