[gstreamer-bugs] [Bug 574272] New: Python plugin loader causes SIGSEGV if "import gst" fails

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-python | Ver: git
           Summary: Python plugin loader causes SIGSEGV if "import gst"
                    fails
           Product: GStreamer
           Version: git
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: blocker
          Priority: Normal
         Component: gst-python
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: slomo at circular-chaos.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Hi,
the python plugin loader causes a SIGSEGV if "import gst" fails. This happens
on my buildslaves as no pygst is installed in the standard Python paths.

http://pitivi.org:8010/builders/sid-good-fast/builds/238/steps/make-check/logs/stdio


gdb backtrace:

0:00:07.506876391 22090  0x80541c0 ERROR             pyplugin
gstpythonplugin.c:256:pygst_require: the pygst module is not available!
ImportError: No module named pygst

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x404f48c0 (LWP 22090)]
0x43be589e in plugin_init (plugin=0x84e0ad0) at gstpythonplugin.c:329
329         state = pyg_gil_state_ensure ();
(gdb) bt
#0  0x43be589e in plugin_init (plugin=0x84e0ad0) at gstpythonplugin.c:329
#1  0x40089059 in gst_plugin_register_func (plugin=0x84e0ad0, desc=0x43be7ae0)
    at gstplugin.c:342
#2  0x40089e22 in gst_plugin_load_file (
    filename=0x84d6f80
"/buildbot/basedir/sid-core-fast/../slave.build/fast/lib/gstreamer-0.10/libgstpython.so",
error=0x0) at gstplugin.c:553
#3  0x400943bf in gst_registry_scan_path_level (registry=0x8068808, 
    path=0x8069170
"/buildbot/basedir/sid-core-fast/../slave.build/fast/lib/gstreamer-0.10",
level=10) at gstregistry.c:919
#4  0x400944c8 in gst_registry_scan_path (registry=0x8068808, 
    path=0x8069170
"/buildbot/basedir/sid-core-fast/../slave.build/fast/lib/gstreamer-0.10") at
gstregistry.c:955
#5  0x40047b67 in scan_and_update_registry (default_registry=0x8068808, 
    registry_file=0x8068600 "../../tests/check/test-registry.reg", 
    write_changes=1, error=0xbf994c30) at gst.c:695
#6  0x400482ae in ensure_current_registry (error=0xbf994c30) at gst.c:787
#7  0x4004a05b in init_post (context=0x8055850, group=0x8055920, data=0x0, 
    error=0xbf994c30) at gst.c:1108
#8  0x402eb323 in IA__g_option_context_parse (context=0x8055850, 
    argc=0xbf994c90, argv=0xbf994c94, error=0xbf994c30)
    at /build/buildd/glib2.0-2.18.4/glib/goption.c:1799
#9  0x40049706 in gst_init_check (argc=0xbf994c90, argv=0xbf994c94, 
    err=0xbf994c30) at gst.c:432
---Type <return> to continue, or q <return> to quit---
#10 0x400497f2 in gst_init (argc=0xbf994c90, argv=0xbf994c94) at gst.c:479
#11 0x40024d55 in gst_check_init (argc=0xbf994c90, argv=0xbf994c94)
    at gstcheck.c:89
#12 0x08048ed9 in main (argc=1, argv=0xbf994d14) at elements/xingmux.c:155


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