Bug 1374032

Description of problem:
Pulseaudi was started manually in a terminal window with "pulseaudio --log-level=4". It was later stopped by running "pulseaudio -k" in another window. Here is the output from just before its termination:

I: [pulseaudio] socket-server.c: TCP connection accepted by tcpwrap.
I: [pulseaudio] client.c: Created 2 "Native client (TCP/IP client from [fdca:2554:9e26::ccd]:58472)"
I: [pulseaudio] protocol-native.c: Client authenticated anonymously.
D: [pulseaudio] protocol-native.c: Protocol version: remote 30, local 30
D: [pulseaudio] protocol-native.c: SHM possible: no
D: [pulseaudio] protocol-native.c: Negotiated SHM: no
D: [pulseaudio] protocol-native.c: Disabling srbchannel, reason: No SHM support
D: [pulseaudio] module-augment-properties.c: Looking for .desktop file for pactl
I: [pulseaudio] client.c: Freed 2 "pactl"
I: [pulseaudio] protocol-native.c: Connection died.
I: [pulseaudio] main.c: Got signal SIGINT.
I: [pulseaudio] main.c: Exiting.
I: [pulseaudio] main.c: Daemon shutdown initiated.
I: [pulseaudio] module.c: Unloading "module-filter-apply" (index: #30).
I: [pulseaudio] module.c: Unloaded "module-filter-apply" (index: #30).
I: [pulseaudio] module.c: Unloading "module-filter-heuristics" (index: #29).
I: [pulseaudio] module.c: Unloaded "module-filter-heuristics" (index: #29).
I: [pulseaudio] module.c: Unloading "module-role-cork" (index: #28).
I: [pulseaudio] module.c: Unloaded "module-role-cork" (index: #28).
I: [pulseaudio] module.c: Unloading "module-position-event-sounds" (index: #27).
I: [pulseaudio] module.c: Unloaded "module-position-event-sounds" (index: #27).
I: [pulseaudio] module.c: Unloading "module-systemd-login" (index: #26).
D: [pulseaudio] module-systemd-login.c: Removing session 3
I: [pulseaudio] client.c: Freed 0 "Login Session 3"
D: [pulseaudio] module-systemd-login.c: Removing session 1
I: [pulseaudio] client.c: Freed 1 "Login Session 1"
I: [pulseaudio] module.c: Unloaded "module-systemd-login" (index: #26).
I: [pulseaudio] module.c: Unloading "module-suspend-on-idle" (index: #25).
I: [pulseaudio] module.c: Unloaded "module-suspend-on-idle" (index: #25).
I: [pulseaudio] module.c: Unloading "module-intended-roles" (index: #24).
I: [pulseaudio] module.c: Unloaded "module-intended-roles" (index: #24).
I: [pulseaudio] module.c: Unloading "module-always-sink" (index: #23).
I: [pulseaudio] module.c: Unloaded "module-always-sink" (index: #23).
I: [pulseaudio] module.c: Unloading "module-rescue-streams" (index: #22).
I: [pulseaudio] module.c: Unloaded "module-rescue-streams" (index: #22).
I: [pulseaudio] module.c: Unloading "module-default-device-restore" (index: #21).
I: [pulseaudio] module.c: Unloaded "module-default-device-restore" (index: #21).
I: [pulseaudio] module.c: Unloading "module-combine-sink" (index: #20).
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] core-subscribe.c: Dropped redundant event due to change event.
D: [pulseaudio] module-zeroconf-publish.c: Removing entry group for hlovdal@myhostname: Simultaneous output to Barts HDMI Aud.
Segmentation fault (core dumped)

The binary is the standard fedora version with the following debug added:

--- pulseaudio-8.0/src/pulse/context.c.orig	2016-09-07 00:28:51.896980437 +0200
+++ pulseaudio-8.0/src/pulse/context.c	2016-09-07 00:48:15.219165529 +0200
@@ -939,6 +939,7 @@
     else
         server = c->conf->default_server;
 
+    pa_log_debug("PA_CHECK_VALIDITY tests passed. server = '%s'", server == NULL ? "NULL" : server);
     pa_context_ref(c);
 
     c->no_fail = !!(flags & PA_CONTEXT_NOFAIL);
@@ -947,6 +948,7 @@
 
     if (server) {
         if (!(c->server_list = pa_strlist_parse(server))) {
+            pa_log_warn("PA_ERR_INVALIDSERVER = '%s'", server);
             pa_context_fail(c, PA_ERR_INVALIDSERVER);
             goto finish;
         }
@@ -959,17 +961,21 @@
         /* Follow the X display */
         if (c->conf->auto_connect_display) {
             if ((d = getenv("DISPLAY"))) {
+                pa_log_debug("auto_connect_display, DISPLAY = '%s'", d);
                 d = pa_xstrndup(d, strcspn(d, ":"));
 
                 if (*d)
                     c->server_list = pa_strlist_prepend(c->server_list, d);
 
                 pa_xfree(d);
+            } else {
+                pa_log_warn("auto_connect_display but no DISPLAY");
             }
         }
 
         /* Add TCP/IP on the localhost */
         if (c->conf->auto_connect_localhost) {
+            pa_log_debug("auto_connect_localhost");
             c->server_list = pa_strlist_prepend(c->server_list, "tcp6:[::1]");
             c->server_list = pa_strlist_prepend(c->server_list, "tcp4:127.0.0.1");
         }
@@ -983,6 +989,7 @@
 
     /* Set up autospawning */
     if (!(flags & PA_CONTEXT_NOAUTOSPAWN) && c->conf->autospawn) {
+        pa_log_debug("autospawning");
 
 #ifdef HAVE_GETUID
         if (getuid() == 0)


Version-Release number of selected component:
pulseaudio-8.0-6.hl.fc24

Additional info:
reporter:       libreport-2.7.2
backtrace_rating: 3
cmdline:        pulseaudio --log-level=4
executable:     /usr/bin/pulseaudio
global_pid:     886
kernel:         4.7.2-201.fc24.x86_64
pkg_vendor:     (none)
runlevel:       N 5
type:           CCpp
uid:            500

Truncated backtrace:
Thread no. 1 (10 frames)
 #0 ??
 #1 pa_hashmap_get at pulsecore/hashmap.c:182
 #2 pa_proplist_gets at pulse/proplist.c:283
 #3 publish_service at modules/module-zeroconf-publish.c:309
 #4 once_callback at pulse/mainloop-api.c:45
 #5 dispatch_defer at pulse/mainloop.c:680
 #6 pa_mainloop_dispatch at pulse/mainloop.c:889
 #7 pa_mainloop_iterate at pulse/mainloop.c:929
 #8 pa_mainloop_run at pulse/mainloop.c:944
 #9 thread at pulse/thread-mainloop.c:100