Commit 358c6ac0 authored Jun 08, 2005 by Ananth N Mavinakayanahalli Committed by Linus Torvalds Jun 08, 2005

[PATCH] ppc64 kprobes: don't eat dabr/iabr exceptions



Kprobes was eating the hardware instruction and data address
breakpoint exceptions.  This patch fixes it; kprobes doesn't use those
exceptions at all and should ignore them.

Signed-off-by: Ananth N Mavinakayanahalli <amavin@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

parent 7840e5e9

arch/ppc64/kernel/kprobes.c

+0 −2

Original line number	Original line	Diff line number	Diff line
	@@ -233,8 +233,6 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val,
	*/		*/
	preempt_disable();		preempt_disable();
	switch (val) {		switch (val) {
	case DIE_IABR_MATCH:
	case DIE_DABR_MATCH:
	case DIE_BPT:		case DIE_BPT:
	if (kprobe_handler(args->regs))		if (kprobe_handler(args->regs))
	ret = NOTIFY_STOP;		ret = NOTIFY_STOP;