[Bug 10216] kernel from different versions hangs with some CD/DVD drives

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http://bugzilla.kernel.org/show_bug.cgi?id=10216





------- Comment #33 from sshtylyov@xxxxxxxxxxxxx  2008-12-07 15:23 -------
(In reply to comment #32)
> (In reply to comment #31)
> > Sergei: I looked into it (under QEMU for now) and adding msleep(1000) +
> > printk() to ide_init() causes the "Clocksource tsc unstable" to appear before
> > IDE initialization so it seems that the issue is caused by some other kernel
> > code and IDE is just unlucky to be initialized at same time as clocksource
> > watchdog triggers.

> I guess it's caused by mspleep(1000) call itself.

Looks like it hasn't been a wild guess. The clocksource watchdog timer handler
gets run every half second. :-)


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