From: Will Schmidt Date: Sat, 21 Jul 2007 15:11:17 +0000 (+0200) Subject: x86_64: During VM oom condition, kill all threads in process group X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=021daae2c265a844fd27bb6cc49c2bd114571069;p=openwrt%2Fstaging%2Fblogic.git x86_64: During VM oom condition, kill all threads in process group During a VM oom condition, kill all threads in the process group. We have had complaints where a threaded application is left in a bad state after one of it's threads is killed when we hit a VM: out_of_memory condition. Killing just one of the process threads can leave the application in a bad state, whereas killing the entire process group would allow for the application to restart, or otherwise handled, and makes it very obvious that something has gone wrong. This change allows the entire process group to be taken down, rather than just the one thread. Signed-off-by: Will Signed-off-by: Andrew Morton Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- diff --git a/arch/x86_64/mm/fault.c b/arch/x86_64/mm/fault.c index 99a801811671..2074bddd4f04 100644 --- a/arch/x86_64/mm/fault.c +++ b/arch/x86_64/mm/fault.c @@ -568,7 +568,7 @@ out_of_memory: } printk("VM: killing process %s\n", tsk->comm); if (error_code & 4) - do_exit(SIGKILL); + do_group_exit(SIGKILL); goto no_context; do_sigbus: