Re: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots)

From: Ingo Molnar (mingo@elte.hu)
Date: Thu Feb 20 2003 - 14:36:26 EST


hm, i think i can see the SMP race.

the last put_task_struct() can also be done by procfs - and nothing keeps
it from freeing the task in __put_task_struct(), while the task struct is
after its final put_task_struct(), but before the switch_to().

this does not explain the UP crash though.

        Ingo

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