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SubjectRe: [PATCH 2/3] [PATCH powerpc] during VM oom condition, kill all threads in process group
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Date

Whoops.. sorry about any reply bounces, I flubbed the cc to
linuxppc-dev@ozlabs.org .

-Will

On Tue, 2007-05-06 at 12:48 -0500, Will Schmidt wrote:
> When we get into a state where VM has ran out of memory, and it's time to
> thwack a process, we should take out the entire process group, rather than
> just one thread.
>
> Tested on POWER5.
>
> Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com>
> ---
>
> arch/powerpc/mm/fault.c | 4 +++-
> 1 files changed, 3 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/mm/fault.c b/arch/powerpc/mm/fault.c
> index 03aeb3a..9afe871 100644
> --- a/arch/powerpc/mm/fault.c
> +++ b/arch/powerpc/mm/fault.c
> @@ -392,8 +392,10 @@ out_of_memory:
> goto survive;
> }
> printk("VM: killing process %s\n", current->comm);
> - if (user_mode(regs))
> + if (user_mode(regs)) {
> + zap_other_threads(current);
> do_exit(SIGKILL);
> + }
> return SIGKILL;
>
> do_sigbus:
>
>

-
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