Commit bac9c66c authored Sep 28, 2006 by Akinobu Mita Committed by Martin Schwidefsky Sep 28, 2006

[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 <mita@miraclelinux.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent a77c64c1

arch/s390/mm/fault.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -355,6 +355,7 @@ do_exception(struct pt_regs *regs, unsigned long error_code, int is_protection)
		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);