diff options
| author | Alexander Nyberg <alexn@dsv.su.se> | 2005-06-23 00:09:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-23 09:45:20 -0700 |
| commit | df164db5fd16888ddbe2a63a47b2f6dda9a428b5 (patch) | |
| tree | cc9aaf42f93761083e58e1d9d8d22261e0ff3686 /kernel/exit.c | |
| parent | 5f45f1a78fbac3cc859ec10c5366e97d20d40fa2 (diff) | |
| download | lwn-df164db5fd16888ddbe2a63a47b2f6dda9a428b5.tar.gz lwn-df164db5fd16888ddbe2a63a47b2f6dda9a428b5.zip | |
[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: Alexander Nyberg <alexn@telia.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/exit.c')
| -rw-r--r-- | kernel/exit.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/exit.c b/kernel/exit.c index 2ef2ad540201..c2bdf6fb61a5 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -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; /* |