crashes a few seconds after starting, seems to be related to opening child windows

[ElDuderino]

xpra 0.10.6 was compiled locally (Sabayon/Linux 3.11). old-libav-no0RGB patch was applied manually (couldn't compile otherwise).

Just attaching and not doing anything seems not to cause the crash.

command to start the server:

PYTHONPATH=`ls -d /home/christian/xpra/lib*/python`:$PYTHONPATH xpra/bin/xpra start :100 --start-child=VirtualBox

command to attach (locally):

PYTHONPATH=`ls -d /home/christian/xpra/lib*/python`:$PYTHONPATH xpra/bin/xpra attach --ssh='ssh -p 22222' ssh:localhost:100

xpra info output (before attaching, because afterwards the server has crashed and there is no info):

christian@uhu2 ~ $ PYTHONPATH=`ls -d /home/christian/xpra/lib*/python`:$PYTHONPATH xpra/bin/xpra info --ssh='ssh -p 22222' ssh:localhost:100
build.bit=64bit
build.by=christian
build.cpu=Intel(R) Core(TM) i7-2670QM CPU @ 2.20GHz
build.date=2013-10-20
build.local_modifications=0
build.on=uhu2.wald
build.revision=4501
clients=0
clients.unauthenticated=0
clipboard.CLIPBOARD.blocked_owner_change=False
clipboard.CLIPBOARD.event.get_contents=0
clipboard.CLIPBOARD.event.got_token=0
clipboard.CLIPBOARD.event.request_contents=0
clipboard.CLIPBOARD.event.selection_clear=0
clipboard.CLIPBOARD.event.selection_get=0
clipboard.CLIPBOARD.event.selection_request=0
clipboard.CLIPBOARD.event.sent_token=0
clipboard.CLIPBOARD.greedy_client=False
clipboard.CLIPBOARD.have_token=False
clipboard.PRIMARY.blocked_owner_change=False
clipboard.PRIMARY.event.get_contents=0
clipboard.PRIMARY.event.got_token=0
clipboard.PRIMARY.event.request_contents=0
clipboard.PRIMARY.event.selection_clear=0
clipboard.PRIMARY.event.selection_get=0
clipboard.PRIMARY.event.selection_request=0
clipboard.PRIMARY.event.sent_token=0
clipboard.PRIMARY.greedy_client=False
clipboard.PRIMARY.have_token=False
clipboard.SECONDARY.blocked_owner_change=False
clipboard.SECONDARY.event.get_contents=0
clipboard.SECONDARY.event.got_token=0
clipboard.SECONDARY.event.request_contents=0
clipboard.SECONDARY.event.selection_clear=0
clipboard.SECONDARY.event.selection_get=0
clipboard.SECONDARY.event.selection_request=0
clipboard.SECONDARY.event.sent_token=0
clipboard.SECONDARY.greedy_client=False
clipboard.SECONDARY.have_token=False
clipboard.filters=()
clipboard.max_size=262144
clipboard.pending=()
clipboard.requests=0
clipboard.type=GDKClipboardProtocolHelper
clipboard.want_targets=False
cursor=None
encoding.PIL.version=1.1.7
encoding.avcodec.version=Lavc54.35.0
encoding.swscale.version=SwS2.1.1
encoding.vpx.version=3
encoding.webp.version=0.2.2
encoding.x264.version=138
encodings=('vpx', 'x264', 'webp', 'png', 'png/L', 'png/P', 'jpeg', 'rgb')
encodings.core=('rgb24', 'rgb32', 'vpx', 'x264', 'webp', 'png', 'png/L', 'png/P', 'jpeg')
encodings.lossless=('rgb24', 'rgb32', 'png', 'png/L', 'png/P', 'webp')
encodings.with_lossless_mode=('webp',)
encodings.with_quality=('x264', 'webp', 'jpeg')
encodings.with_speed=('x264', 'png', 'png/L', 'png/P', 'jpeg', 'rgb')
features.bell=True
features.clipboard=True
features.cursors=True
features.notifications=False
features.password_file=
features.pulseaudio=True
features.randr=False
info_thread[0]=write
info_thread[1]=read
info_thread[2]=parse
info_thread[3]=format
info_threads=4
keyboard.keys_pressed=()
keyboard.modifiers={}
keyboard.repeat.delay=-1
keyboard.repeat.interval=-1
keyboard.sync=True
memory.children.idrss=0
memory.children.inblock=0
memory.children.isrss=0
memory.children.ixrss=0
memory.children.majflt=0
memory.children.maxrss=16852
memory.children.minflt=8276
memory.children.msgrcv=0
memory.children.msgsnd=0
memory.children.nivcsw=12
memory.children.nsignals=0
memory.children.nswap=0
memory.children.nvcsw=25
memory.children.oublock=8
memory.children.stime=0
memory.children.utime=0
memory.server.idrss=0
memory.server.inblock=16
memory.server.isrss=0
memory.server.ixrss=0
memory.server.majflt=1
memory.server.maxrss=33196
memory.server.minflt=12925
memory.server.msgrcv=0
memory.server.msgsnd=0
memory.server.nivcsw=15
memory.server.nsignals=0
memory.server.nswap=0
memory.server.nvcsw=1512
memory.server.oublock=32
memory.server.stime=0
memory.server.utime=0
server.XShm=True
server.byteorder=little
server.gid=1001
server.gtk.version=(2, 24, 22)
server.hostname=uhu2.wald
server.pid=8866
server.platform=Linux
server.platform.linux_distribution=('Gentoo Base System', '2.2', '')
server.platform.platform=Linux-3.11.0-sabayon-x86_64-Intel-R-_Core-TM-_i7-2670QM_CPU_@_2.20GHz-with-gentoo-2.2
server.platform.release=3.11.0-sabayon
server.pycrypto.version=2.6
server.pygtk.version=(2, 24, 0)
server.python.full_version=2.7.5 (default, Oct 14 2013, 09:13:45) \n[GCC 4.7.3]
server.python.version=(2, 7, 5)
server.start_time=1382319785
server.type=Python/gtk/x11
server.uid=1000
server.version=0.10.6
session.name=
thread[0]=MainThread
threads=1
windows=1
connection closed after 1 packets received (1.5K bytes) and 1 packets sent (0.4K bytes)
Connection lost

---

Output when attaching:

christian@uhu2 ~ $ PYTHONPATH=`ls -d /home/christian/xpra/lib*/python`:$PYTHONPATH xpra/bin/xpra attach --ssh='ssh -p 22222' ssh:localhost:100
xpra client version 0.10.6
2013-10-20 21:48:54,449 No OpenGL_accelerate module loaded: No module named OpenGL_accelerate
2013-10-20 21:48:54,510 Unable to load registered array format handler numeric:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/OpenGL/arrays/formathandler.py", line 35, in loadPlugin
    plugin_class = entrypoint.load()
  File "/usr/lib64/python2.7/site-packages/OpenGL/plugins.py", line 14, in load
    return importByName( self.import_path )
  File "/usr/lib64/python2.7/site-packages/OpenGL/plugins.py", line 28, in importByName
    module = __import__( ".".join(moduleName), {}, {}, moduleName)
  File "/usr/lib64/python2.7/site-packages/OpenGL/arrays/numeric.py", line 15, in <module>
    raise ImportError( """No Numeric module present: %s"""%(err))
ImportError: No Numeric module present: No module named Numeric

2013-10-20 21:48:54,511 Unable to load registered array format handler vbo:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/OpenGL/arrays/formathandler.py", line 35, in loadPlugin
    plugin_class = entrypoint.load()
  File "/usr/lib64/python2.7/site-packages/OpenGL/plugins.py", line 14, in load
    return importByName( self.import_path )
  File "/usr/lib64/python2.7/site-packages/OpenGL/plugins.py", line 28, in importByName
    module = __import__( ".".join(moduleName), {}, {}, moduleName)
  File "/usr/lib64/python2.7/site-packages/OpenGL/arrays/vbo.py", line 33, in <module>
    from OpenGL import GL
ImportError: cannot import name GL

2013-10-20 21:48:54,511 Unable to load registered array format handler vbooffset:
Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/OpenGL/arrays/formathandler.py", line 35, in loadPlugin
    plugin_class = entrypoint.load()
  File "/usr/lib64/python2.7/site-packages/OpenGL/plugins.py", line 14, in load
    return importByName( self.import_path )
  File "/usr/lib64/python2.7/site-packages/OpenGL/plugins.py", line 28, in importByName
    module = __import__( ".".join(moduleName), {}, {}, moduleName)
  File "/usr/lib64/python2.7/site-packages/OpenGL/arrays/vbo.py", line 33, in <module>
    from OpenGL import GL
ImportError: cannot import name GL

2013-10-20 21:48:54,548 OpenGL Version: 3.0 Mesa 9.2.0
2013-10-20 21:48:54,590 GL Extension GL_ARB_shader_objects available
2013-10-20 21:48:54,595 GL Extension GL_ARB_vertex_array_object available
2013-10-20 21:48:54,596 GL Extension GL_ARB_texture_buffer_object available
2013-10-20 21:48:54,597 GL Extension GL_ARB_framebuffer_object available
2013-10-20 21:48:54,599 GL Extension GL_ARB_map_buffer_range available
2013-10-20 21:48:54,600 GL Extension GL_ARB_copy_buffer available
2013-10-20 21:48:54,601 GL Extension GL_ARB_uniform_buffer_object available
2013-10-20 21:48:54,602 GL Extension GL_ARB_draw_elements_base_vertex available
2013-10-20 21:48:54,603 GL Extension GL_ARB_provoking_vertex available
2013-10-20 21:48:54,603 GL Extension GL_ARB_sync available
2013-10-20 21:48:54,605 GL Extension GL_ARB_texture_multisample available
2013-10-20 21:48:54,607 GL Extension GL_ARB_blend_func_extended available
2013-10-20 21:48:54,608 GL Extension GL_ARB_sampler_objects available
2013-10-20 21:48:54,610 GL Extension GL_ARB_timer_query available
2013-10-20 21:48:54,610 GL Extension GL_ARB_vertex_type_2_10_10_10_rev available
2013-10-20 21:48:54,614 GL Extension GL_ARB_draw_indirect unavailable
2013-10-20 21:48:54,614 GL Extension GL_ARB_gpu_shader_fp64 unavailable
2013-10-20 21:48:54,616 GL Extension GL_ARB_shader_subroutine unavailable
2013-10-20 21:48:54,616 GL Extension GL_ARB_tessellation_shader unavailable
2013-10-20 21:48:54,617 GL Extension GL_ARB_transform_feedback2 unavailable
2013-10-20 21:48:54,618 GL Extension GL_ARB_transform_feedback3 unavailable
2013-10-20 21:48:54,618 GL Extension GL_ARB_ES2_compatibility available
2013-10-20 21:48:54,619 GL Extension GL_ARB_get_program_binary available
2013-10-20 21:48:54,620 GL Extension GL_ARB_separate_shader_objects unavailable
2013-10-20 21:48:54,624 GL Extension GL_ARB_vertex_attrib_64bit unavailable
2013-10-20 21:48:54,625 GL Extension GL_ARB_viewport_array unavailable
2013-10-20 21:48:54,626 GL Extension GL_ARB_base_instance unavailable
2013-10-20 21:48:54,628 GL Extension GL_ARB_transform_feedback_instanced unavailable
2013-10-20 21:48:54,629 GL Extension GL_ARB_internalformat_query available
2013-10-20 21:48:54,629 GL Extension GL_ARB_shader_atomic_counters unavailable
2013-10-20 21:48:54,630 GL Extension GL_ARB_shader_image_load_store unavailable
2013-10-20 21:48:54,631 GL Extension GL_ARB_texture_storage available
2013-10-20 21:48:54,632 GL Extension GL_ARB_clear_buffer_object unavailable
2013-10-20 21:48:54,633 GL Extension GL_ARB_compute_shader unavailable
2013-10-20 21:48:54,633 GL Extension GL_ARB_copy_image unavailable
2013-10-20 21:48:54,634 GL Extension GL_KHR_debug unavailable
2013-10-20 21:48:54,635 GL Extension GL_ARB_framebuffer_no_attachments unavailable
2013-10-20 21:48:54,636 GL Extension GL_ARB_internalformat_query2 unavailable
2013-10-20 21:48:54,637 GL Extension GL_ARB_invalidate_subdata available
2013-10-20 21:48:54,639 GL Extension GL_ARB_multi_draw_indirect unavailable
2013-10-20 21:48:54,640 GL Extension GL_ARB_program_interface_query unavailable
2013-10-20 21:48:54,641 GL Extension GL_ARB_shader_storage_buffer_object unavailable
2013-10-20 21:48:54,642 GL Extension GL_ARB_texture_buffer_range unavailable
2013-10-20 21:48:54,642 GL Extension GL_ARB_texture_storage_multisample available
2013-10-20 21:48:54,643 GL Extension GL_ARB_texture_view unavailable
2013-10-20 21:48:54,643 GL Extension GL_ARB_vertex_attrib_binding unavailable
2013-10-20 21:48:54,656 GL Extension GL_ARB_fragment_program available
2013-10-20 21:48:54,657 GL Extension GL_ARB_texture_rectangle available
2013-10-20 21:48:54,658 GL Extension GL_ARB_vertex_program available
2013-10-20 21:48:57,082 mmap is enabled using 128MB area in /tmp/xpra.lTY09S.mmap
2013-10-20 21:48:57,084 Attached to ssh:localhost:100 (press Control-C to detach)

2013-10-20 21:49:01,754 Connection lost
2013-10-20 21:49:01,755 connection closed after 139 packets received (24K bytes) and 389 packets sent (40K bytes)

[ElDuderino]

Seems to be similar to this one: #314

However, using --opengl=no doesn't help.

[ElDuderino]

Just tested a few other programs like dolphin or thunar, there was the same problem, so maybe not exclusive to VirtualBox.

[Antoine Martin]

All your problems are probably ffmpeg/libav related. Try a different encoding to confirm, one that does not use libav (ie: png, jpeg, webp or plain rgb).
The most interesting messages would have been in the server log, which is missing.
(should you want to get more helpful logging, add -d all to the server command line)

• AFAIK, xpra has ebuilds in gentoo, so I'm not sure why you're not using those
• you probably need more than one patch when running against libav, which ones depend on which version you have (and that's why most people use pre-packaged builds instead)
• if you try building against ffmpeg 2.x (and maybe some newer libav versions), it will not work: see #415
• The GL warnings are harmless (just missing some components) and I have added them to the wiki/FAQ. And the crash you are having is server side anyway, so opengl (which is client side) is unlikely to be relevant.

Please confirm so I can close this ticket.

[ElDuderino]

server log

[ElDuderino]

The gentoo ebuild complained about missing python qt4 module, even though it was installed. I couldn't get it to run.

May be related to my particular setup, if I don't post again, you can close this one.

I attached the server log.

[Antoine Martin]

Qt4 is not needed at build time (and is not in our ebuilds), the qt4 client is very experimental and should not be used.

If you are talking about a warning about qt4 at runtime instead, then this is just a warning, in current trunk only AFAIK, and can safely be ignored anyway.

As for the server log, you didn't include -d all, so there is nothing of interest there.

I am fairly certain you have library or patching problems, so I am closing this ticket.

[migration script]

this ticket has been moved to: ​https://github.com/Xpra-org/xpra/issues/446