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SubjectRe: PATCH: Race in 2.6.0-test2 timer code

On Tue, 29 Jul 2003, Andrew Morton wrote:

> Well Andrea did mention a problem with the interval timers. But I am
> not aware of the exact details of the race which he found, and I don't
> understand why del_timer() and add_timer() would be needing the
> per-timer locks.

hmm ... indeed i cannot see the 2.6 itimer race anymore. Andrea, can you
see any SMP races in the current 2.6 timer code?

(in any case, i still think it would be safer to 'upgrade' the add_timer()
interface to be SMP-safe and to allow double-adds - but not for any bug
reason anymore.)


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