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SubjectRe: [patch] do proper cleanups before requesting irq

> The problem is that there are comparisons of pointers to task_struct when
> deciding if the task is alive. If one task dies and other one starts, it is
> possible (is it?) that the task structure of the newly created task resides
> at the very address where was the dead one's, so comparing pointers is not
> reliable. This patch changes it to comparisons of task's pids.
> Can anyone, please, atleast tell me if this patch is correct?

it might be better but it is not correct. pids are reused, too
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