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SubjectRe: [patch] fixed both processes in D state and the /proc/ oopses [Re: [patch] Fixed the race that was oopsing Linux-2.2.0]


On Wed, 27 Jan 1999, Stephen C. Tweedie wrote:
>
> In other words, we are grabbing a task, pinning the mm_struct, blocking
> for the mm semaphore and releasing the task's *current* mm_struct, which
> is not necessarily the same as it was before we blocked. In particular,
> if we catch the process during a fork+exec, then it is perfectly
> possible for tsk->mm to change here.

Good point. I reverted part of the array.c patches in the released 2.2.0,
it seems I should really have reverted them all.

Linus


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