Re: [patch] scalable timers implementation, 2.4.16, 2.5.0

Andi Kleen (ak@suse.de)
06 Dec 2001 03:32:38 +0100


Rusty Russell <rusty@rustcorp.com.au> writes:

> The deadlock you're referring to is, I assume, del_timer_sync() called
> inside the timer itself? Can you think of any other dangerous cases?

Common seems to be:

CPU#0 CPU#1

timer fires
spinlock()
spinlock() - spinning
del_timer_sync()

-> deadlock.

-Andi
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