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SubjectRe: [PATCH] Fast Userspace Mutexes III.
On Wed, 6 Mar 2002, Richard Henderson wrote:

> On Mon, Mar 04, 2002 at 02:15:58PM -0800, Davide Libenzi wrote:
> > That's great. What if the process holding the mutex dies while there're
> > sleeping tasks waiting for it ?
>
> The lock is lost. The same thing would happen with locks completely
> implemented in userspace.
>
> I don't see that the kernel should do anything about this. If a
> thread is killed with predudice (i.e. without pthread_cancel) then
> there are all sorts of cleanups that won't happen. Having the
> kernel automatically unlock the locks doesn't help much, since
> the data structures are quite likely in an inconsistent state.

agreed, whatever solution does not solve it completely and makes things is
lot more complex. it's not an issue ...



- Davide


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