kgdb_mips_notify is called on IBE/DBE/FPE/BP/TRAP/RI exception. None of them need fixup. And doing fixup for a breakpoint exception will confuse gdb. Signed-off-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx> --- This is a patch against current kernel.org git tree. diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c index c5a8b2d..cdaa4e3 100644 --- a/arch/mips/kernel/kgdb.c +++ b/arch/mips/kernel/kgdb.c @@ -190,9 +190,6 @@ static int kgdb_mips_notify(struct notifier_block *self, unsigned long cmd, struct pt_regs *regs = args->regs; int trap = (regs->cp0_cause & 0x7c) >> 2; - if (fixup_exception(regs)) - return NOTIFY_DONE; - /* Userpace events, ignore. */ if (user_mode(regs)) return NOTIFY_DONE;