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authorKAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>2006-06-23 02:03:13 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:42:47 -0700
commitfadd8fbd153c12963f8fe3c9ef7f8967f286f98b (patch)
tree547cdee6203b769773521118a4dd19e95a7ef3fd /include
parent67de648211fa041fe08a0c25241a4980bbb90698 (diff)
[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>
Diffstat (limited to 'include')
-rw-r--r--include/linux/sysctl.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h
index cee944dbdcd..c7132029af0 100644
--- a/include/linux/sysctl.h
+++ b/include/linux/sysctl.h
@@ -186,6 +186,7 @@ enum
VM_PERCPU_PAGELIST_FRACTION=30,/* int: fraction of pages in each percpu_pagelist */
VM_ZONE_RECLAIM_MODE=31, /* reclaim local zone memory before going off node */
VM_ZONE_RECLAIM_INTERVAL=32, /* time period to wait after reclaim failure */
+ VM_PANIC_ON_OOM=33, /* panic at out-of-memory */
};