Keshavamurthy Anil S (on Thu, 20 Apr 2006 17:38:47 -0700) wrote:
>On Fri, Apr 21, 2006 at 10:14:04AM +1000, Keith Owens wrote:
>> Anil S Keshavamurthy (on Thu, 20 Apr 2006 16:25:02 -0700) wrote:
>> >---
>> >@@ -654,6 +659,9 @@ static int __init init_kprobes(void)
>> > if (!err)
>> > err = register_die_notifier(&kprobe_exceptions_nb);
>> >
>> >+ if (!err)
>> >+ err = register_page_fault_notifier(&kprobe_page_fault_nb);
>> >+
>> > return err;
>> > }
>> >
>>
>> The rest of the patches look OK, but this one does not. init_kprobes()
>> registers the main kprobe exception handler, not the page fault
>> handler.
>I am registering for register_page_fault_notifier() and as you can see
>I am not deleting the old register_die_notifier() which is also required
>for getting notified on int3/break and single-step traps.
>So no issues here.
Patch 7 conditionally registers a page fault handler, plus an
unregister when there are no user space probes. Why does patch 6
unconditionally register a page fault handler?
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