Messages in this thread | | | Date | Mon, 17 Apr 2006 06:25:52 -0500 | From | Robin Holt <> | Subject | Re: Is notify_die being overloaded? |
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On Mon, Apr 17, 2006 at 05:51:44AM -0500, Robin Holt wrote: > On Mon, Apr 17, 2006 at 05:52:10PM +1000, Keith Owens wrote: > > Robin Holt (on Sat, 15 Apr 2006 05:43:56 -0500) wrote: ... > > Unfortunately the ebents are ambiguous. On IA64 BUG() maps to break 0, > > but break 0 is also used for debugging[*]. Which makes it awkward to > > differentiate between a kernel error and a debug event, we have to > > first ask the debuggers if the event if for them then, if the debuggers > > do not want the event, drop into the die_if_kernel event. > > I think this still would argue for a notify_debugger() sort of callout > which would read something like:
I finally think I understand your point. You are saying that kdb would have to register for the notify_debugger() chain and would therefore get in the way of handle_page_fault(). What about changing notify_die() callout in handle_page_fault() into a notify_page_fault(). That actually feels a lot better now that you got me to think about it.
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