Messages in this thread | ![/](/images/icornerl.gif) | | Date | Thu, 20 Feb 2003 20:53:48 +0100 (CET) | From | Ingo Molnar <> | Subject | Re: doublefault debugging (was Re: Linux v2.5.62 --- spontaneous reboots) |
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On Thu, 20 Feb 2003, Ingo Molnar wrote:
> 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 race is correctly solved by moving the wait_task_inactive() from release_task() into the tsk != current branch of __free_task_struct().
Ingo
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