[gstreamer-bugs] [Bug 575563] The last gstreamer sometime deadlock when it wasn't a few month ago

Wed Apr 8 07:32:39 PDT 2009

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  GStreamer | gstreamer (core) | Ver: git

Sebastien Merle changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |UNCONFIRMED

------- Comment #4 from Sebastien Merle  2009-04-08 14:33 UTC -------
Sorry, I didn't sow the reply.

Here are the threads backtraces:

Thread 4 (Thread 0xb750bb90 (LWP 17392)):
#0  0xb8068430 in __kernel_vsyscall ()
#1  0xb801b075 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7739c6b in gst_data_queue_push (queue=0x96cbf70, item=0x96d9388) at
gstdataqueue.c:391
#3  0xb75ec2eb in gst_multi_queue_chain (pad=0x959c3c0, buffer=0x959e158) at
gstmultiqueue.c:984
#4  0xb76a4605 in gst_pad_chain_unchecked (pad=0x959c3c0, buffer=0x959e158) at
gstpad.c:3977
#5  0xb76a5a1a in gst_pad_push (pad=0x95666c8, buffer=0x959e158) at
gstpad.c:4144
#6  0xb757f3c1 in gst_asf_demux_push_complete_payloads (demux=0x9596c00,
force=0) at gstasfdemux.c:1188
#7  0xb758983e in gst_asf_demux_loop (demux=0x9596c00) at gstasfdemux.c:1240
#8  0xb76c8f43 in gst_task_func (task=0x9583da0, tclass=0x9366c50) at
gsttask.c:172
#9  0xb7ae56e6 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0xb7ae404f in ?? () from /usr/lib/libglib-2.0.so.0
#11 0xb801750f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#12 0xb7f65a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 3 (Thread 0xb6d0ab90 (LWP 17393)):
#0  0xb8068430 in __kernel_vsyscall ()
#1  0xb801b075 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb7739600 in gst_data_queue_pop (queue=0x9570e28, item=0xb6d0a2e4) at
gstdataqueue.c:448
#3  0xb75eb803 in gst_multi_queue_loop (pad=0x959c180) at gstmultiqueue.c:850
#4  0xb76c8f43 in gst_task_func (task=0x95dce98, tclass=0x9366c50) at
gsttask.c:172
#5  0xb7ae56e6 in ?? () from /usr/lib/libglib-2.0.so.0
#6  0xb7ae404f in ?? () from /usr/lib/libglib-2.0.so.0
#7  0xb801750f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb7f65a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xb5b22b90 (LWP 17394)):
#0  0xb8068430 in __kernel_vsyscall ()
#1  0xb801b075 in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
#2  0xb76a071e in handle_pad_block (pad=0x95df950) at gstpad.c:3850
#3  0xb76a5c95 in gst_pad_alloc_buffer_full (pad=0x95df950,
offset=18446744073709551615, size=64800, caps=0xb6402760, buf=0xb5b22094,
setcaps=0) at gstpad.c:2859
#4  0xb7695269 in gst_proxy_pad_do_bufferalloc (pad=0x95e00e0,
offset=18446744073709551615, size=64800, caps=0xb6402760, buf=0xb5b22094) at
gstghostpad.c:182
#5  0xb76a5ee7 in gst_pad_alloc_buffer_full (pad=0x959c600,
offset=18446744073709551615, size=64800, caps=0xb6402760, buf=0xb5b22094,
setcaps=1) at gstpad.c:2791
#6  0xb5bb435d in alloc_output_buffer (ffmpegdec=0x96d21f0, outbuf=0xb5b22094,
width=240, height=180) at gstffmpegdec.c:796
#7  0xb5bb81c7 in gst_ffmpegdec_frame (ffmpegdec=0x96d21f0, data=0x97bf960 "",
size=1780, got_data=0xb5b2218c, in_timestamp=0, in_duration=66000000,
ret=0xb5b22188) at gstffmpegdec.c:1392
#8  0xb5bb963f in gst_ffmpegdec_chain (pad=0x959c540, inbuf=0x9598cf0) at
gstffmpegdec.c:2330
#9  0xb76a4605 in gst_pad_chain_unchecked (pad=0x959c540, buffer=0x9598cf0) at
gstpad.c:3977
#10 0xb76a5a1a in gst_pad_push (pad=0x959c480, buffer=0x9598cf0) at
gstpad.c:4144
#11 0xb75ebaf8 in gst_multi_queue_loop (pad=0x959c480) at gstmultiqueue.c:749
#12 0xb76c8f43 in gst_task_func (task=0x95dcf88, tclass=0x9366c50) at
gsttask.c:172
#13 0xb7ae56e6 in ?? () from /usr/lib/libglib-2.0.so.0
#14 0xb7ae404f in ?? () from /usr/lib/libglib-2.0.so.0
#15 0xb801750f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#16 0xb7f65a0e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb7e838c0 (LWP 17390)):
#0  0xb8068430 in __kernel_vsyscall ()
#1  0xb7f5b167 in poll () from /lib/tls/i686/cmov/libc.so.6
#2  0xb7abcc52 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0xb7abd2e2 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#4  0xb7d5afd4 in ?? () from
/var/lib/python-support/python2.5/gtk-2.0/glib/_glib.so
#5  0x080cede3 in PyEval_EvalFrameEx (f=0x9276024, throwflag=0) at
../Python/ceval.c:3579
#6  0x080d0345 in PyEval_EvalCodeEx (co=0x8fcb380, globals=0xb7dc2bdc,
locals=0x0, args=0x92759f8, argcount=1, kws=0x92759fc, kwcount=0,
defs=0x9166e78, defcount=1, closure=0x0) at ../Python/ceval.c:2858
#7  0x080ce728 in PyEval_EvalFrameEx (f=0x92758b4, throwflag=0) at
../Python/ceval.c:3691
#8  0x080d0345 in PyEval_EvalCodeEx (co=0xb7e234a0, globals=0xb7dbbb54,
locals=0x0, args=0x8fc4e3c, argcount=2, kws=0x8fc4e44, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at ../Python/ceval.c:2858
#9  0x080ce728 in PyEval_EvalFrameEx (f=0x8fc4cec, throwflag=0) at
../Python/ceval.c:3691
#10 0x080d0345 in PyEval_EvalCodeEx (co=0xb7e11968, globals=0xb7e5cacc,
locals=0x0, args=0x8f50fe4, argcount=1, kws=0x8f50fe8, kwcount=0,
defs=0xb7e1b958, defcount=1, closure=0x0) at ../Python/ceval.c:2858
#11 0x080ce728 in PyEval_EvalFrameEx (f=0x8f50ea4, throwflag=0) at
../Python/ceval.c:3691
#12 0x080d0345 in PyEval_EvalCodeEx (co=0xb7e11e30, globals=0xb7e5cacc,
locals=0xb7e5cacc, args=0x0, argcount=0, kws=0x0, kwcount=0, defs=0x0,
defcount=0, closure=0x0) at ../Python/ceval.c:2858
#13 0x080d0557 in PyEval_EvalCode (co=0xb7e11e30, globals=0xb7e5cacc,
locals=0xb7e5cacc) at ../Python/ceval.c:514
#14 0x080edf8f in PyRun_FileExFlags (fp=0x8f15008, filename=0xbfb69c17
"bin/mediamorphoser-discover", start=257, globals=0xb7e5cacc,
locals=0xb7e5cacc, closeit=1, flags=0xbfb68ca8) at ../Python/pythonrun.c:1273
#15 0x080ee25a in PyRun_SimpleFileExFlags (fp=0x8f15008, filename=0xbfb69c17
"bin/mediamorphoser-discover", closeit=1, flags=0xbfb68ca8) at
../Python/pythonrun.c:879
#16 0x080595e7 in Py_Main (argc=2, argv=0xbfb68d74) at ../Modules/main.c:532
#17 0x08058962 in main (argc=Cannot access memory at address 0x3
) at ../Modules/python.c:23

This is from the today last gstreamer checkout.

Could it be that some queue/multiqueue behavior changed ?

The version 0.10.21 (Ubuntu packages) works just fine.

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