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List:       linux-smp
Subject:    Re: 2.1.111 SMP fix in sys_wait4()
From:       Linus Torvalds <torvalds () transmeta ! com>
Date:       1998-07-28 6:45:30
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On Tue, 28 Jul 1998, Eric PAIRE wrote:
> 
> The p_[o]pptr links are modified without any lock held when a debugged ZOMBIE
> task status is got by the debugger task. I think that the links should be
> modified with tasklist_lock exclusively help since they can be modified in
> parallel by forget_original_parent(). I suggest the enclosed patch for 2.1.111
> to fix this potential (and extremely unfrequent :-) SMP problem.

Looks good, applied.

		Linus

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