[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 #32 from sshtylyov@xxxxxxxxxxxxx  2008-12-07 14:38 -------
(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. If ide_wait_not_ready() is
touching the other watchdogs anyway, I don't see why it shouldn't touch the
clocksource watchdog too.


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