Re: [PATCH] vm_is_stack: use for_each_thread() rather then buggy while_each_thread()

From: David Rientjes
Date: Sat Aug 09 2014 - 04:59:34 EST

On Thu, 7 Aug 2014, Oleg Nesterov wrote:

> Aleksei hit the soft lockup during reading /proc/PID/smaps.
> David investigated the problem and suggested the right fix.
> while_each_thread() is racy and should die, this patch updates
> vm_is_stack().
> Reported-and-tested-by: Aleksei Besogonov <alex.besogonov@xxxxxxxxx>
> Suggested-by: David Rientjes <rientjes@xxxxxxxxxx>
> Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

> Cc: stable@xxxxxxxxxxxxxxx

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