Messages in this thread | | | Subject | Re: User space out of memory approach | From | Alan Cox <> | Date | Thu, 13 Jan 2005 15:36:54 +0000 |
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On Maw, 2005-01-11 at 20:46, Ilias Biris wrote: > well looking into Alan's email again I think I answered thinking on > the wrong side :-) that the suggestion was to switch off OOM > altogether and be done with all the discussion... tsk tsk tsk too > defensive and hasty I guess :-)
Thats what mode 2 is all about. There are some problems with over-early triggering of OOM that Andrea fixed that are still relevant (or stick "never OOM if mode == 2" into your kernel)
> Did I get it right this time Alan?
Basically yes - the real problem with the OOM situation is there is no correct answer. People have spent years screwing around with the OOM killer selection logic and while you can make it pick large tasks or old tasks or growing tasks easily nobody has a good heuristic about what to die because it depends on the users wishes. OOM requires AF_TELEPATHY sockets and we don't have them.
For most users simply not allowing the mess to occur solves the problem - not all but most.
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