From: Jim Houston Andi's change for a single debug notifier is fine, but the earlier addition of DIE_PAGE_FAULT broke the kgdb stub in Andrew's -mm tree. The attached patch fixes this problem by ignoring this notification for page faults. Signed-off-by: Andrew Morton --- arch/x86_64/kernel/kgdb_stub.c | 2 ++ 1 files changed, 2 insertions(+) diff -puN arch/x86_64/kernel/kgdb_stub.c~kgdb-x86_64-support-fix arch/x86_64/kernel/kgdb_stub.c --- 25/arch/x86_64/kernel/kgdb_stub.c~kgdb-x86_64-support-fix 2005-04-25 18:44:57.391018088 -0700 +++ 25-akpm/arch/x86_64/kernel/kgdb_stub.c 2005-04-25 18:45:26.595578320 -0700 @@ -2193,6 +2193,8 @@ static int kgdb_notify(struct notifier_b { struct die_args *d = ptr; + if (cmd == DIE_PAGE_FAULT) + return NOTIFY_DONE; if (!kgdb_enabled || (cmd == DIE_DEBUG && user_mode(d->regs))) return NOTIFY_DONE; if (cmd == DIE_NMI_IPI) { _