Public bug reported: ---------------------------------------------------- Description: Ubuntu 9.10 Release: 9.10
Arch: AMD64 (Intel i7 920) uname -a: Linux vono-fixe 2.6.31-16-generic #52-Ubuntu SMP Thu Dec 3 22:07:16 UTC 2009 x86_64 GNU/Linux r...@vono-fixe:~# apt-cache policy ardour ardour: Installé : 1:2.8.2-0ubuntu1 Candidat : 1:2.8.2-0ubuntu1 Table de version : *** 1:2.8.2-0ubuntu1 0 500 http://fr.archive.ubuntu.com karmic/universe Packages 100 /var/lib/dpkg/status r...@vono-fixe:~# apt-cache policy liblo0ldbl liblo0ldbl: Installé : 0.23-2.2 Candidat : 0.23-2.2 Table de version : *** 0.23-2.2 0 500 http://fr.archive.ubuntu.com karmic/universe Packages 100 /var/lib/dpkg/status ---------------------------------------------------- I've install ardour2 to test it, but it always crash with a Segmentation fault (SIGSEV). here the reproduction step: - launch ardour2 - in the session manager dialog box, type a session name, eventualy chosse a directory. - Click on the new button --> Crash ---------------------------------------------------- v...@vono-fixe:~/.dbus/session-bus$ export LANG=C v...@vono-fixe:~/.dbus/session-bus$ ardour2 [...] ALSA: final selected sample format for capture: 32bit integer little-endian ALSA: use 2 periods for capture ALSA: final selected sample format for playback: 32bit integer little-endian ALSA: use 2 periods for playback SSE2 detected loading bindings from /etc/ardour2/mnemonic-us.bindings Loading session /home/vono/tmp/test using snapshot test (1) Segmentation fault v...@vono-fixe:~/.dbus/session-bus$ subgraph starting at ardour timed out (subgraph_wait_fd=12, status = 0, state = Triggered, pollret = 0 revents = 0x0) **** alsa_pcm: xrun of at least 480.649 msecs ---------------------------------------------------- Since I've not the traditional ubuntu bug reporting launch when it crash, i tried to manually discover what's wrong. After installing debugs packages, I've this stacktrace in gdb: (gdb) backtrace #0 *__GI_freeaddrinfo (ai=0x5) at ../sysdeps/posix/getaddrinfo.c:2392 #1 0x00007fffef71cca5 in ?? () from /usr/lib/liblo.so.0 #2 0x00007fffef71cf2a in lo_send_message_from () from /usr/lib/liblo.so.0 #3 0x00007fffef71d053 in lo_send_internal () from /usr/lib/liblo.so.0 #4 0x00007ffff7b02313 in ARDOUR::OSC::session_loaded (this=0x13a12b0, s=...) at libs/ardour/osc.cc:429 #5 0x00007ffff7b02191 in ARDOUR::OSC::set_session (this=0x13a12b0, s=...) at libs/ardour/osc.cc:415 #6 0x00007ffff7a5cae1 in ARDOUR::Session::when_engine_running (this=0x7fffe00a0d90) at libs/ardour/session.cc:913 #7 0x00007ffff7abae4f in ARDOUR::Session::second_stage_init (this=0x7fffe00a0d90, new_session=false) at libs/ardour/session_state.cc:317 #8 0x00007ffff7a5175f in Session (this=0x7fffe00a0d90, eng=..., fullpath=..., snapshot_name=..., mix_template=...) at libs/ardour/session.cc:320 #9 0x000000000082c734 in ARDOUR_UI::load_session (this=0x10ff540, path=..., snap_name=..., mix_template=...) at gtk2_ardour/ardour_ui.cc:2482 #10 0x000000000082c17e in ARDOUR_UI::get_session_parameters (this=0x10ff540, backend_audio_is_running=true, should_be_new=true) at gtk2_ardour/ardour_ui.cc:2411 #11 0x000000000082383c in ARDOUR_UI::startup (this=0x10ff540) at gtk2_ardour/ardour_ui.cc:654 #12 0x000000000084426a in sigc::bound_mem_functor0<void, ARDOUR_UI>::operator() (this=0x131fe88) at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #13 0x0000000000842d1c in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR_UI> >::operator() (this=0x131fe80) at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #14 0x0000000000840bb4 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR_UI>, void>::call_it ( rep=0x131fe50) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #15 0x00000000008336ac in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x131ce90) at /usr/include/sigc++-2.0/sigc++/signal.h:548 #16 0x0000000000839f4c in sigc::signal0<void, sigc::nil>::emit (this=0x10ff5c8) at /usr/include/sigc++-2.0/sigc++/signal.h:1706 #17 0x0000000000837322 in sigc::signal0<void, sigc::nil>::operator() (this=0x10ff5c8) at /usr/include/sigc++-2.0/sigc++/signal.h:1710 #18 0x00007ffff2b6ff84 in Gtkmm2ext::UI::run (this=0x10ff540, old_receiver=...) at libs/gtkmm2ext/gtk_ui.cc:224 #19 0x0000000000b2055b in main (argc=1, argv=0x7fffffffe338) at gtk2_ardour/main.cc:346 The problem seems to come from "liblo-0.23/src/send.c" source file. The "static int resolve_address(lo_address a)" does not initialize the "ai" pointer: struct addrinfo *ai; // line 362 then when calling "ret = getaddrinfo(a->host, a->port, &hints, &ai)" // line 373, the getaddrinfo call the function freeaddrinfo, with maybe an uninitialized pointer. I've juste replace the line 362 with; struct addrinfo *ai = NULL; recompile, update my LD_LIBRARY_PATH env var, and relaunch ardour. It work ! ----------------------------------------- Note: I hope it is a valid bug report, since i do not know really how to do it. I've not provide a patch/diff file, but I can if you prefer. ** Affects: liblo (Ubuntu) Importance: Undecided Status: New ** Description changed: - ---------------------------------------------------- Description: Ubuntu 9.10 Release: 9.10 Arch: AMD64 (Intel i7 920) uname -a: Linux vono-fixe 2.6.31-16-generic #52-Ubuntu SMP Thu Dec 3 22:07:16 UTC 2009 x86_64 GNU/Linux r...@vono-fixe:~# apt-cache policy ardour ardour: - Installé : 1:2.8.2-0ubuntu1 - Candidat : 1:2.8.2-0ubuntu1 - Table de version : - *** 1:2.8.2-0ubuntu1 0 - 500 http://fr.archive.ubuntu.com karmic/universe Packages - 100 /var/lib/dpkg/status + Installé : 1:2.8.2-0ubuntu1 + Candidat : 1:2.8.2-0ubuntu1 + Table de version : + *** 1:2.8.2-0ubuntu1 0 + 500 http://fr.archive.ubuntu.com karmic/universe Packages + 100 /var/lib/dpkg/status - r...@vono-fixe:~# apt-cache policy liblo0ldbl + r...@vono-fixe:~# apt-cache policy liblo0ldbl liblo0ldbl: - Installé : 0.23-2.2 - Candidat : 0.23-2.2 - Table de version : - *** 0.23-2.2 0 - 500 http://fr.archive.ubuntu.com karmic/universe Packages - 100 /var/lib/dpkg/status - + Installé : 0.23-2.2 + Candidat : 0.23-2.2 + Table de version : + *** 0.23-2.2 0 + 500 http://fr.archive.ubuntu.com karmic/universe Packages + 100 /var/lib/dpkg/status ---------------------------------------------------- I've install ardour2 to test it, but it always crash with a Segmentation fault (SIGSEV). here the reproduction step: - launch ardour2 - in the session manager dialog box, type a session name, eventualy chosse a directory. - Click on the new button --> Crash ---------------------------------------------------- v...@vono-fixe:~/.dbus/session-bus$ export LANG=C v...@vono-fixe:~/.dbus/session-bus$ ardour2 [...] ALSA: final selected sample format for capture: 32bit integer little-endian ALSA: use 2 periods for capture ALSA: final selected sample format for playback: 32bit integer little-endian ALSA: use 2 periods for playback SSE2 detected loading bindings from /etc/ardour2/mnemonic-us.bindings Loading session /home/vono/tmp/test using snapshot test (1) Segmentation fault v...@vono-fixe:~/.dbus/session-bus$ subgraph starting at ardour timed out (subgraph_wait_fd=12, status = 0, state = Triggered, pollret = 0 revents = 0x0) - **** alsa_pcm: xrun of at least 480.649 msecs - ---------------------------------------------------- Since I've not the traditional ubuntu bug reporting launch when it crash, i tried to manually discover what's wrong. After installing debugs packages, I've this stacktrace in gdb: (gdb) backtrace #0 *__GI_freeaddrinfo (ai=0x5) at ../sysdeps/posix/getaddrinfo.c:2392 #1 0x00007fffef71cca5 in ?? () from /usr/lib/liblo.so.0 #2 0x00007fffef71cf2a in lo_send_message_from () from /usr/lib/liblo.so.0 #3 0x00007fffef71d053 in lo_send_internal () from /usr/lib/liblo.so.0 #4 0x00007ffff7b02313 in ARDOUR::OSC::session_loaded (this=0x13a12b0, s=...) at libs/ardour/osc.cc:429 #5 0x00007ffff7b02191 in ARDOUR::OSC::set_session (this=0x13a12b0, s=...) at libs/ardour/osc.cc:415 #6 0x00007ffff7a5cae1 in ARDOUR::Session::when_engine_running (this=0x7fffe00a0d90) at libs/ardour/session.cc:913 #7 0x00007ffff7abae4f in ARDOUR::Session::second_stage_init (this=0x7fffe00a0d90, new_session=false) - at libs/ardour/session_state.cc:317 + at libs/ardour/session_state.cc:317 #8 0x00007ffff7a5175f in Session (this=0x7fffe00a0d90, eng=..., fullpath=..., snapshot_name=..., mix_template=...) - at libs/ardour/session.cc:320 + at libs/ardour/session.cc:320 #9 0x000000000082c734 in ARDOUR_UI::load_session (this=0x10ff540, path=..., snap_name=..., mix_template=...) - at gtk2_ardour/ardour_ui.cc:2482 - #10 0x000000000082c17e in ARDOUR_UI::get_session_parameters (this=0x10ff540, backend_audio_is_running=true, - should_be_new=true) at gtk2_ardour/ardour_ui.cc:2411 + at gtk2_ardour/ardour_ui.cc:2482 + #10 0x000000000082c17e in ARDOUR_UI::get_session_parameters (this=0x10ff540, backend_audio_is_running=true, + should_be_new=true) at gtk2_ardour/ardour_ui.cc:2411 #11 0x000000000082383c in ARDOUR_UI::startup (this=0x10ff540) at gtk2_ardour/ardour_ui.cc:654 #12 0x000000000084426a in sigc::bound_mem_functor0<void, ARDOUR_UI>::operator() (this=0x131fe88) - at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 + at /usr/include/sigc++-2.0/sigc++/functors/mem_fun.h:1787 #13 0x0000000000842d1c in sigc::adaptor_functor<sigc::bound_mem_functor0<void, ARDOUR_UI> >::operator() (this=0x131fe80) - at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 + at /usr/include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h:251 #14 0x0000000000840bb4 in sigc::internal::slot_call0<sigc::bound_mem_functor0<void, ARDOUR_UI>, void>::call_it ( - rep=0x131fe50) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 + rep=0x131fe50) at /usr/include/sigc++-2.0/sigc++/functors/slot.h:103 #15 0x00000000008336ac in sigc::internal::signal_emit0<void, sigc::nil>::emit (impl=0x131ce90) - at /usr/include/sigc++-2.0/sigc++/signal.h:548 + at /usr/include/sigc++-2.0/sigc++/signal.h:548 #16 0x0000000000839f4c in sigc::signal0<void, sigc::nil>::emit (this=0x10ff5c8) - at /usr/include/sigc++-2.0/sigc++/signal.h:1706 + at /usr/include/sigc++-2.0/sigc++/signal.h:1706 #17 0x0000000000837322 in sigc::signal0<void, sigc::nil>::operator() (this=0x10ff5c8) - at /usr/include/sigc++-2.0/sigc++/signal.h:1710 + at /usr/include/sigc++-2.0/sigc++/signal.h:1710 #18 0x00007ffff2b6ff84 in Gtkmm2ext::UI::run (this=0x10ff540, old_receiver=...) at libs/gtkmm2ext/gtk_ui.cc:224 #19 0x0000000000b2055b in main (argc=1, argv=0x7fffffffe338) at gtk2_ardour/main.cc:346 - The problem seems to come from "liblo-0.23/src/send.c" source file. The "static int resolve_address(lo_address a)" does not initialize the "ai" pointer: - struct addrinfo *ai; // line 362 + struct addrinfo *ai; // line 362 then when calling "ret = getaddrinfo(a->host, a->port, &hints, &ai)" // line 373, the getaddrinfo call the function freeaddrinfo, with maybe an uninitialized pointer. I've juste replace the line 362 with; - struct addrinfo *ai = NULL; + struct addrinfo *ai = NULL; recompile, update my LD_LIBRARY_PATH env var, and relaunch ardour. It work ! ----------------------------------------- Note: I hope it is a valid bug report, since i do not know really how to do it. - I've not provide a patch/diff file, but a can if you prefer. + I've not provide a patch/diff file, but I can if you prefer. -- ardour2 crash by SIGSEV in freeaddrinfo (from liblo) https://bugs.launchpad.net/bugs/493181 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
