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| author |   KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> | 2006-06-23 02:03:13 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 07:42:47 -0700 |
| commit | fadd8fbd153c12963f8fe3c9ef7f8967f286f98b (patch) | |
| tree | 547cdee6203b769773521118a4dd19e95a7ef3fd /include | |
| parent | [PATCH] squash duplicate page_to_pfn and pfn_to_page (diff) | |
| download | linux-dev-fadd8fbd153c12963f8fe3c9ef7f8967f286f98b.tar.xz linux-dev-fadd8fbd153c12963f8fe3c9ef7f8967f286f98b.zip | |
[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.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index cee944dbdcd4..c7132029af0f 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 */ }; |