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Commit df164db5 authored by Alexander Nyberg's avatar Alexander Nyberg Committed by Linus Torvalds
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[PATCH] avoid resursive oopses 



Prevent recursive faults in do_exit() by leaving the task alone and wait
for reboot.  This may allow a more graceful shutdown and possibly save the
original oops.

Signed-off-by: default avatarAlexander Nyberg <alexn@telia.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 5f45f1a7

kernel/exit.c

+11 −0
Original line number Diff line number Diff line
@@ -793,6 +793,17 @@ fastcall NORET_TYPE void do_exit(long code) 
		ptrace_notify((PTRACE_EVENT_EXIT << 8) | SIGTRAP);

	}



	/*

	 * We're taking recursive faults here in do_exit. Safest is to just

	 * leave this task alone and wait for reboot.

	 */

	if (unlikely(tsk->flags & PF_EXITING)) {

		printk(KERN_ALERT

			"Fixing recursive fault but reboot is needed!\n");

		set_current_state(TASK_UNINTERRUPTIBLE);

		schedule();

	}



	tsk->flags |= PF_EXITING;



	/*