tree 547cdee6203b769773521118a4dd19e95a7ef3fd
parent 67de648211fa041fe08a0c25241a4980bbb90698
author KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> 1151053393 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151073767 -0700

[PATCH] support for panic at OOM

This patch adds panic_on_oom sysctl under sys.vm.

When sysctl vm.panic_on_oom = 1, the kernel panics intead of killing rogue
processes.  And if vm.panic_on_oom is 0 the kernel will do oom_kill() in
the same way as it does today.  Of course, the default value is 0 and only
root can modifies it.

In general, oom_killer works well and kill rogue processes.  So the whole
system can survive.  But there are environments where panic is preferable
rather than kill some processes.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>