For some reason, in the RT kernel, we have in exit.c a
BUG_ON(in_interrupt()) just before a check of in_interrupt() then panic.
With the panic, we get a nice output of what happened (considering that
the panic gives us a backtrace).
But a BUG_ON will cause a fault, and then try to bug again. This causes
a recursive fault which eventually eats up the stack. Twice have we
lost information on a crash because of this recursive faulting.
This patch undoes the adding the BUG_ON in exit.c.
Signed-off-by: Steven Rostedt <[email protected]>
Index: linux-2.6.21.5-rt17/kernel/exit.c
===================================================================
--- linux-2.6.21.5-rt17.orig/kernel/exit.c
+++ linux-2.6.21.5-rt17/kernel/exit.c
@@ -863,7 +863,6 @@ fastcall NORET_TYPE void do_exit(long co
WARN_ON(atomic_read(&tsk->fs_excl));
- BUG_ON(in_interrupt());
if (unlikely(in_interrupt()))
panic("Aiee, killing interrupt handler!");
if (unlikely(!tsk->pid))
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
