[libvirt] [PATCH 04/14] Ensure signal handler propagates fatal signals to default handler

["Daniel P. Berrange" <berrange redhat com>]

From: "Daniel P. Berrange" <berrange redhat com>

When replacing the default SEGV/ABORT/BUS signal handlers you
can't rely on the process being terminated after your custom
handler runs. It is neccessary to manually restore the default
handler and then re-raise the signal

* src/rpc/virnetserver.c: Restore default handler and raise
  signal
---
 src/rpc/virnetserver.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/src/rpc/virnetserver.c b/src/rpc/virnetserver.c
index 5e1719b..d5e9d0a 100644
--- a/src/rpc/virnetserver.c
+++ b/src/rpc/virnetserver.c
@@ -257,8 +257,9 @@ static void virNetServerFatalSignal(int sig, siginfo_t *siginfo ATTRIBUTE_UNUSED
 #ifdef SIGUSR2
     if (sig != SIGUSR2) {
 #endif
-        sig_action.sa_handler = SIG_IGN;
+        sig_action.sa_handler = SIG_DFL;
         sigaction(sig, &sig_action, NULL);
+        raise(sig);
 #ifdef SIGUSR2
     }
 #endif
-- 
1.7.6