Messages in this thread | | | Date | Mon, 29 Mar 2010 13:46:30 +0200 | From | Oleg Nesterov <> | Subject | Re: [PATCH] oom killer: break from infinite loop |
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On 03/29, anfei wrote: > > On Sun, Mar 28, 2010 at 06:28:21PM +0200, Oleg Nesterov wrote: > > On 03/28, anfei wrote: > > > > > > Assume thread A and B are in the same group. If A runs into the oom, > > > and selects B as the victim, B won't exit because at least in exit_mm(), > > > it can not get the mm->mmap_sem semaphore which A has already got. > > > > I see. But still I can't understand. To me, the problem is not that > > B can't exit, the problem is that A doesn't know it should exit. All > > If B can exit, its memory will be freed,
Which memory? I thought, we are talking about the memory used by ->mm ?
Oleg.
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