[asan] Increase kHandlerStackSize for TracerThreadSignalHandler
4096 is not enough on some platform, e.g. Debian 4.9.0-3-amd64
@@ -263,7 +263,7 @@ static void TracerThreadSignalHandler(int signum, void *siginfo, void *uctx) {
}
// Size of alternative stack for signal handlers in the tracer thread.
-static const int kHandlerStackSize = 4096;
+static const int kHandlerStackSize = 8192;
// This function will be run as a cloned task.
static int TracerThread(void* argument) {
