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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 Fri, 29 Jan 1999, MOLNAR Ingo wrote:

> yes, there is no atomic_inc_and_test() yet. (it's a bit tricky to

_Where_ do you want to run atomic_inc_and_test()? On random kernel data
where incidentally a long time ago there was the just deallocated
and reused (somewhere else) mm_struct?

If we incidentally access the mm_struct and we notice that the mm->count
is zero it menas we are just buggy.

> sign flag.) Also note that this is all fiction yet because we _are_
> holding the kernel lock for these situations in 2.2.

Sure it's finction, but _all_ complains I get against my s/atomic_t/int/
was about the future.

Andrea Arcangeli


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