Jason Wessel ba773f7c51 x86,kgdb: Fix hw breakpoint regression ... HW breakpoints events stopped working correctly with kgdb as a result of commit: 018cbffe68 (Merge commit 'v2.6.33' into perf/core). The regression occurred because the behavior changed for setting NOTIFY_STOP as the return value to the die notifier if the breakpoint was known to the HW breakpoint API. Because kgdb is using the HW breakpoint API to register HW breakpoints slots, it must also now implement the overflow_handler call back else kgdb does not get to see the events from the die notifier. The kgdb_ll_trap function will be changed to be general purpose code which can allow an easy way to implement the hw_breakpoint API overflow call back. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Dongdong Deng <dongdong.deng@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com>		2010-07-28 19:10:30 -05:00
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kernel	x86,kgdb: Fix hw breakpoint regression	2010-07-28 19:10:30 -05:00
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