Hi!
> > kernel: [734344.717844] irq 21: nobody cared (try booting with the
> > "irqpoll" option)
> > kernel: [734344.717866]
>
> Your machine decided to emit interrupt 21 without an apparent reason.
> Whatever caused that made the kernel shut down IRQ 21 at which point the
> disk drives on that IRQ were no longer being serviced. Everything on IRQ
> 21 would have died - which may be why your networking failed too.
Hmm, perhaps that 'nobody cared' message should be worded more
strongly, and printed and KERN_CRIT?
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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