From: Willy Tarreau <w@1wt.eu>
Date: Fri, 17 May 2019 08:39:47 +0000 (+0200)
Subject: BUG/MINOR: debug: make ha_task_dump() always check the task before dumping it
X-Git-Tag: v2.0-dev4~73
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=231ec395c104d07939a3da143498357533c3e43e;p=thirdparty%2Fhaproxy.git

BUG/MINOR: debug: make ha_task_dump() always check the task before dumping it

For now it cannot happen since we're calling it from a task but it will
break with signals. No backport is needed.
---

diff --git a/src/debug.c b/src/debug.c
index 54f91d6238..47bf6e53bb 100644
--- a/src/debug.c
+++ b/src/debug.c
@@ -75,6 +75,11 @@ void ha_thread_dump(int thr)
  */
 void ha_task_dump(const struct task *task, const char *pfx)
 {
+	if (!curr_task) {
+		chunk_appendf(&trash, "0\n");
+		return;
+	}
+
 	chunk_appendf(&trash,
 	              "%p (%s) calls=%u last=%llu%s\n",
 	              curr_task, TASK_IS_TASKLET(curr_task) ? "tasklet" : "task",