src: force line buffering for stderr

SmartOS does not line buffer stderr by default, or at least that is the behavior on the Node project Jenkins server. Force line buffering. This resolves the flakiness observed on SmartOS for test-debug-signal-cluster. PR-URL: #3701 Fixes: #2476 Refs: #3615 Reviewed-By: Johan Bergström <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Ben Noordhuis <[email protected]>
nodejs · Nov 11, 2015 · 0966ab9 · 0966ab9
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commit 0966ab9
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diff --git a/src/node_main.cc b/src/node_main.cc
@@ -41,6 +41,7 @@ int wmain(int argc, wchar_t *wargv[]) {
 #else
 // UNIX
 int main(int argc, char *argv[]) {
+  setvbuf(stderr, NULL, _IOLBF, 1024);
   return node::Start(argc, argv);
 }
 #endif
diff --git a/test/parallel/parallel.status b/test/parallel/parallel.status
@@ -18,7 +18,6 @@ test-child-process-exit-code      : PASS,FLAKY
 [$system==macos]
 
 [$system==solaris] # Also applies to SmartOS
-test-debug-signal-cluster         : PASS,FLAKY
 
 [$system==freebsd]
 test-net-socket-local-address     : PASS,FLAKY