Messages in this thread Patch in this message | | | Date | Wed, 19 Dec 2007 16:48:04 -0500 | From | Masami Hiramatsu <> | Subject | [PATCH 1/3] x86: fix kprobe_handler reenable preemption |
| |
Fix a preemption bug in kprobe_handler(). It has to call preempt_enable() before returning.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> --- arch/x86/kernel/kprobes.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
Index: b/arch/x86/kernel/kprobes.c =================================================================== --- a/arch/x86/kernel/kprobes.c +++ b/arch/x86/kernel/kprobes.c @@ -467,7 +467,8 @@ static int __kprobes kprobe_handler(stru arch_disarm_kprobe(p); regs->ip = (unsigned long)p->addr; reset_current_kprobe(); - return 1; + ret = 1; + goto no_kprobe; #endif } /* We have reentered the kprobe_handler(), since -- Masami Hiramatsu Software Engineer Hitachi Computer Products (America) Inc. Software Solutions Division
e-mail: mhiramat@redhat.com, masami.hiramatsu.pt@hitachi.com
| |