From bac9c66cd25e134077b284fc59bee6e5a8475d33 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Thu, 28 Sep 2006 16:55:18 +0200 Subject: [PATCH] [S390] init task memory faults. Lock for mmap_sem is missing on page fault retry for init task when it fails due to out of memory. Signed-off-by: Akinobu Mita Signed-off-by: Martin Schwidefsky --- arch/s390/mm/fault.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 44f0cda7e72e..a393c308bb29 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -355,6 +355,7 @@ out_of_memory: up_read(&mm->mmap_sem); if (tsk->pid == 1) { yield(); + down_read(&mm->mmap_sem); goto survive; } printk("VM: killing process %s\n", tsk->comm); -- 2.20.1