They have been discussed many times. Please search for SIGDANGER in the
linux-kernel mailing list archive.
> 1. I was wondering that instead of killing the application using
> oom_kill_task() directly, should the OOM issue some kind of a
> warning by sending a signal (some signal with si_code set to a
> value indicating that the application is causing memory to run
> out). Then, wait for a while and then see if the application is
> still misbehaving and if so kill it.
This is exactly what SIGDANGER is.
Cheers, Andreas
--
Andreas Dilger \ "If a man ate a pound of pasta and a pound of antipasto,
\ would they cancel out, leaving him still hungry?"
http://www-mddsp.enel.ucalgary.ca/People/adilger/ -- Dogbert
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