From: Prasanna S Panchamukhi <prasanna@in.ibm.com>
This patch modifies the return value of kprobes exceptions notify handler.
The kprobes exception notifier returns NOTIFY_STOP on handling
notification. This patch helps other debuggers to co-exists with the
Kprobes. Other debuggers registered for exceptions notification must
return NOTIFY_STOP on handling the notification.
Signed-Off-By : Prasanna S Panchamukhi <prasanna@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/arch/x86_64/kernel/kgdb_stub.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -puN arch/x86_64/kernel/kgdb_stub.c~kprobes-exception-notifier-fix-kgdb-x86_64 arch/x86_64/kernel/kgdb_stub.c
--- 25/arch/x86_64/kernel/kgdb_stub.c~kprobes-exception-notifier-fix-kgdb-x86_64 Thu Sep 30 15:02:16 2004
+++ 25-akpm/arch/x86_64/kernel/kgdb_stub.c Thu Sep 30 15:02:16 2004
@@ -2197,9 +2197,9 @@ static int kgdb_notify(struct notifier_b
return NOTIFY_DONE;
if (cmd == DIE_NMI_IPI) {
if (in_kgdb(d->regs))
- return NOTIFY_BAD;
+ return NOTIFY_STOP;
} else if (kgdb_handle_exception(d->trapnr, d->signr, d->err, d->regs))
- return NOTIFY_BAD; /* skip */
+ return NOTIFY_STOP; /* skip */
return NOTIFY_DONE;
}
_