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path: root/debian/patches/dyson-g-ir-scanner-hangs.patch
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Description: deadlock in gobject introspection
Bug-Dyson: http://osdyson.org/issues/161
Bug-Gentoo: https://bugs.gentoo.org/show_bug.cgi?id=463960
Stack:
25849:  /home/pashev/packaging/webkitgtk/webkitgtk-2.0.4/build-2.0/tmp-introsp
-----------------  lwp# 1 / thread# 1  --------------------
 fffffd7ffeeaf957 lwp_park (0, 0, 0)
 fffffd7ffeea8036 mutex_lock_impl () + 156
 fffffd7ffeea810b mutex_lock () + b
 fffffd7ffee340fa _preexec_atfork_unload () + 3a
 fffffd7ffee343ab _preexec_exit_handlers () + bb
 fffffd7fff5ccf0d purge_exit_handlers () + 10d
 fffffd7fff5cec18 remove_hdl () + ce8
 fffffd7fff5c8895 dlclose_core () + c5
 fffffd7fff5c88e5 dlclose_intn () + 15
 fffffd7fff5c89bb dlclose_check () + 7b
 fffffd7fff5c8a21 dlclose () + 41
 fffffd7ffaa03c41 px_module_manager_load () + 191
 fffffd7ffaa03cf6 px_module_manager_load_dir () + 66
 fffffd7ffaa050d7 px_proxy_factory_new () + 107
 fffffd7ffb201671 ???????? ()
 fffffd7feca30eca g_type_create_instance () + 16a
 fffffd7feca1597c ???????? ()
 fffffd7feca17472 g_object_newv () + 792
 fffffd7feca17aec g_object_new () + ec
 fffffd7fece5d052 ???????? ()
 fffffd7fece5d1d8 ???????? ()
 fffffd7fc98659a5 ???????? ()
 fffffd7feca173f6 g_object_newv () + 716
 fffffd7feca17aec g_object_new () + ec
 fffffd7fc986da24 soup_session_add_feature_by_type () + e4
 fffffd7fc986fb43 ???????? ()
 fffffd7feca17e00 g_object_set_valist () + 300
 fffffd7feca186d7 g_object_set () + e7
 fffffd7fc5724f87 WebCore::ResourceHandle::defaultSession() () + a7
 fffffd7fc48da299 webkitExit() () + 9
 fffffd7ffee33f56 _exithandle () + 66
 fffffd7ffee1e191 exit () + 11
 00000000004086af ???????? ()
 000000000040724c _start () + 6c
-----------------  lwp# 2 / thread# 2  --------------------
 fffffd7ffeeaf957 lwp_park (0, 0, 0)
 fffffd7ffeea94bf cond_wait_queue () + 4f
 fffffd7ffeea9b12 __cond_wait () + b2
 fffffd7ffeea9b42 cond_wait () + 22
 fffffd7ffeea9b79 pthread_cond_wait () + 9
 fffffd7fc4eed04b WebCore::IconDatabase::syncThreadMainLoop() () + 12b
 fffffd7fc4eed278 WebCore::IconDatabase::iconDatabaseSyncThread() () + 138
 fffffd7fc3b2bc59 WTF::wtfThreadEntryPoint(void*) () + 19
 fffffd7ffeeaf617 _thrp_setup () + 77
 fffffd7ffeeaf910 _lwp_start ()
-----------------  lwp# 3 / thread# 3  --------------------
 fffffd7ffeeaf957 lwp_park (0, 0, 0)
 fffffd7ffeea8036 mutex_lock_impl () + 156
 fffffd7ffeea810b mutex_lock () + b
 fffffd7ffee33e17 atexit_locks () + 17
 fffffd7ffee58ce9 libc_prepare_atfork () + 9
 fffffd7ffee34533 _prefork_handler () + 33
 fffffd7ffee9fc85 forkx () + 275
 fffffd7ffee9fcab fork () + b
 fffffd7fec68aacb ???????? ()
 fffffd7fec68b2a7 g_spawn_sync () + 167
 fffffd7fec68b994 g_spawn_command_line_sync () + 74
 fffffd7feceb2748 ???????? ()
 fffffd7feceb4019 g_dbus_address_get_for_bus_sync () + 2c9
 fffffd7fecebd11e ???????? ()
 fffffd7fecec4643 g_bus_get_sync () + 63
 fffffd7ffc60700b ???????? ()
 fffffd7ffc60714f ???????? ()
 fffffd7fec648ad0 g_main_context_dispatch () + 130
 fffffd7fec648e40 ???????? ()
 fffffd7fec648f08 g_main_context_iteration () + 38
 fffffd7ffc606f65 ???????? ()
 fffffd7fec66d50d ???????? ()
 fffffd7ffeeaf617 _thrp_setup () + 77
 fffffd7ffeeaf910 _lwp_start ()
Index: webkit/Source/WebKit/gtk/webkit/webkitglobals.cpp
===================================================================
--- webkit.orig/Source/WebKit/gtk/webkit/webkitglobals.cpp	2013-12-02 00:06:10.504150531 +0400
+++ webkit/Source/WebKit/gtk/webkit/webkitglobals.cpp	2013-12-03 14:08:05.956932011 +0400
@@ -564,6 +564,14 @@
 
     WebCore::SchemeRegistry::registerURLSchemeAsLocal("resource");
 
+    // http://osdyson.org/issues/161
+    // WebKitGTK FTBFS when building GObject introspection due to deadlock.
+    // When gobject introspection is done, a simple program call exit()
+    // exit() -> webkitExit() -> g_object_unref() -> webkit_get_default_session()
+    // -> ResourceHandle::defaultSession() => default session doesn't exist! AND
+    // we try to create it! Thus deadlock. So, create default session earlier:
+    (void) webkit_get_default_session();
+
     atexit(webkitExit);
 }