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-rw-r--r--kernel/exit.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 2ef2ad54020..c2bdf6fb61a 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;
/*