From 6c9f198c9a7ea0597c1181b46f794380a7be5cfe Mon Sep 17 00:00:00 2001
From: Keith Randall <khr@golang.org>
Date: Fri, 17 Jan 2014 18:47:40 -0800
Subject: [PATCH] runtime: print stack trace when "panic during panic"

Fixes bug 7145

R=golang-codereviews, iant
CC=golang-codereviews
https://golang.org/cl/53970043
---
 src/pkg/runtime/panic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/pkg/runtime/panic.c b/src/pkg/runtime/panic.c
index b60547ea10..d85a8fefba 100644
--- a/src/pkg/runtime/panic.c
+++ b/src/pkg/runtime/panic.c
@@ -371,7 +371,8 @@ runtime·startpanic(void)
 		m->mcache = runtime·allocmcache();
 	if(m->dying) {
 		runtime·printf("panic during panic\n");
-		runtime·exit(3);
+		runtime·dopanic(0);
+		runtime·exit(3); // not reached
 	}
 	m->dying = 1;
 	if(g != nil)
-- 
2.50.0