diff --git a/src/Backtrace.h b/src/Backtrace.h
index ab3d419..356f7ad 100644
--- a/src/Backtrace.h
+++ b/src/Backtrace.h
@@ -12,10 +12,10 @@
 #if _PREDIXY_BACKTRACE_
 
 #include <execinfo.h>
-inline void traceInfo()
+inline void traceInfo(int sig)
 {
 #define Size 128
-    logError("predixy backtrace");
+    logError("predixy backtrace(%d)", sig);
     void* buf[Size];
     int num = ::backtrace(buf, Size);
     int fd = -1;
@@ -32,9 +32,9 @@ inline void traceInfo()
 
 #else
 
-inline void traceInfo()
+inline void traceInfo(int sig)
 {
-    logError("predixy backtrace, but current system unspport backtrace");
+    logError("predixy backtrace(%d), but current system unspport backtrace", sig);
 }
 
 #endif
diff --git a/src/Proxy.cpp b/src/Proxy.cpp
index c260565..eb42f7b 100644
--- a/src/Proxy.cpp
+++ b/src/Proxy.cpp
@@ -27,7 +27,7 @@ static bool Stop = false;
 static void abortHandler(int sig)
 {
     if (!Abort) {
-        traceInfo();
+        traceInfo(sig);
     }
     Abort = true;
     if (!Running) {
@@ -65,6 +65,7 @@ Proxy::~Proxy()
 
 bool Proxy::init(int argc, char* argv[])
 {
+    signal(SIGHUP, SIG_IGN);
     signal(SIGPIPE, SIG_IGN);
     signal(SIGFPE, abortHandler);
     signal(SIGILL, abortHandler);
@@ -72,7 +73,6 @@ bool Proxy::init(int argc, char* argv[])
     signal(SIGABRT, abortHandler);
     signal(SIGBUS, abortHandler);
     signal(SIGQUIT, abortHandler);
-    signal(SIGHUP, abortHandler);
     signal(SIGINT, stopHandler);
     signal(SIGTERM, stopHandler);