From 35df8d53f5c951ac0cd79f1084e6787ca5980207 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Mon, 5 Feb 2007 21:17:29 +0100 Subject: [PATCH] [S390] Fix kprobes breakpoint handling. In case of an illegal op the die notifier gets called with DIE_TRAP instead of DIE_BPT first. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/traps.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index aa0d7ee71c7..f0e5a320e2e 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -490,8 +490,15 @@ static void illegal_op(struct pt_regs * regs, long interruption_code) #endif } else signal = SIGILL; - } else - signal = SIGILL; + } else { + /* + * If we get an illegal op in kernel mode, send it through the + * kprobes notifier. If kprobes doesn't pick it up, SIGILL + */ + if (notify_die(DIE_BPT, "bpt", regs, interruption_code, + 3, SIGTRAP) != NOTIFY_STOP) + signal = SIGILL; + } #ifdef CONFIG_MATHEMU if (signal == SIGFPE) -- 2.41.1