Bug 55139

Summary:	[combine] memblockq.c: Assertion '!bq->blocks \|\| (bq->write_index + (int64_t)chunk.length <= bq->blocks->index)' failed at pulsecore/memblockq.c:408, function pa_memblockq_push(). Aborting.
Product:	PulseAudio	Reporter:	Tvrtko Ursulin <tvrtko.ursulin>
Component:	modules	Assignee:	pulseaudio-bugs
Status:	RESOLVED FIXED	QA Contact:	pulseaudio-bugs
Severity:	normal
Priority:	medium	CC:	lennart
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description Tvrtko Ursulin 2012-09-20 10:53:04 UTC

PulseAudio 1.1, this happens regularly when playing back DVB-T through GStreamer pulsesink and Flash over ALSA to PA bridge.


(gdb) thread apply all bt

Thread 6 (Thread 0x7faf5ffde780 (LWP 32742)):
#0  0x00007faf5f3a62f7 in map_flags_to_libc (flags=PA_IO_EVENT_INPUT) at pulse/mainloop.c:135
#1  rebuild_pollfds (m=0x16cab60) at pulse/mainloop.c:650
#2  pa_mainloop_prepare (m=0x16cab60, timeout=-1) at pulse/mainloop.c:829
#3  0x00007faf5f3a6b9d in pa_mainloop_iterate (m=0x16cab60, block=<optimized out>, retval=0x7ffff41f9fd4) at pulse/mainloop.c:954
#4  0x00007faf5f3a6c60 in pa_mainloop_run (m=0x16cab60, retval=0x7ffff41f9fd4) at pulse/mainloop.c:975
#5  0x0000000000406a08 in main (argc=<optimized out>, argv=<optimized out>) at daemon/main.c:1132

Thread 5 (Thread 0x7faf4f4ae700 (LWP 32748)):
#0  0x00007faf5d2b5b70 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007faf5ef55568 in pa_semaphore_wait (s=0x7faf44000ab0) at pulsecore/semaphore-posix.c:63
#2  0x00007faf5fb606da in pa_asyncmsgq_send (a=0x17082d0, object=<optimized out>, code=<optimized out>, userdata=<optimized out>, offset=<optimized out>, chunk=<optimized out>) at pulsecore/asyncmsgq.c:167
#3  0x00007faf4daa8046 in request_memblock (length=28180, o=0x1708310) at modules/module-combine-sink.c:410
#4  sink_input_pop_cb (i=<optimized out>, nbytes=28180, chunk=0x7faf4f4ab4d0) at modules/module-combine-sink.c:421
#5  0x00007faf5fb87edb in pa_sink_input_peek (i=0x1719230, slength=28180, chunk=0x7faf4f4ab610, volume=0x7faf4f4ab628) at pulsecore/sink-input.c:812
#6  0x00007faf5fb8e46a in fill_mix_info (s=0x16f3f80, length=0x7faf4f4adcb8, info=0x7faf4f4ab610, maxinfo=32) at pulsecore/sink.c:950
#7  0x00007faf5fb90e27 in pa_sink_render_into (s=0x16f3f80, target=0x7faf4f4add10) at pulsecore/sink.c:1189
#8  0x00007faf5fb91379 in pa_sink_render_into_full (s=0x16f3f80, target=0x7faf4f4adda0) at pulsecore/sink.c:1273
#9  0x00007faf501d3b80 in mmap_write (on_timeout=false, polled=false, sleep_usec=<synthetic pointer>, u=0x16eb520) at modules/alsa/alsa-sink.c:632
#10 thread_func (userdata=0x16eb520) at modules/alsa/alsa-sink.c:1656
#11 0x00007faf5ef55308 in internal_thread_func (userdata=0x16da240) at pulsecore/thread-posix.c:83
#12 0x00007faf5d2afd90 in start_thread () from /lib64/libpthread.so.0
#13 0x00007faf5c950f5d in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7faf4e4ac700 (LWP 32753)):
#0  0x00007faf5d2b5b70 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007faf5ef55568 in pa_semaphore_wait (s=0x7faf38000b10) at pulsecore/semaphore-posix.c:63
#2  0x00007faf5fb606da in pa_asyncmsgq_send (a=0x1709f30, object=<optimized out>, code=<optimized out>, userdata=<optimized out>, offset=<optimized out>, chunk=<optimized out>) at pulsecore/asyncmsgq.c:167
#3  0x00007faf4daa8046 in request_memblock (length=26000, o=0x170eaa0) at modules/module-combine-sink.c:410
#4  sink_input_pop_cb (i=<optimized out>, nbytes=26000, chunk=0x7faf4e4a94d0) at modules/module-combine-sink.c:421
#5  0x00007faf5fb87edb in pa_sink_input_peek (i=0x1721fb0, slength=26000, chunk=0x7faf4e4a9610, volume=0x7faf4e4a9628) at pulsecore/sink-input.c:812
#6  0x00007faf5fb8e46a in fill_mix_info (s=0x1701700, length=0x7faf4e4abcb8, info=0x7faf4e4a9610, maxinfo=32) at pulsecore/sink.c:950
#7  0x00007faf5fb90e27 in pa_sink_render_into (s=0x1701700, target=0x7faf4e4abd10) at pulsecore/sink.c:1189
#8  0x00007faf5fb91379 in pa_sink_render_into_full (s=0x1701700, target=0x7faf4e4abda0) at pulsecore/sink.c:1273
#9  0x00007faf501d3b80 in mmap_write (on_timeout=false, polled=false, sleep_usec=<synthetic pointer>, u=0x16fa320) at modules/alsa/alsa-sink.c:632
#10 thread_func (userdata=0x16fa320) at modules/alsa/alsa-sink.c:1656
#11 0x00007faf5ef55308 in internal_thread_func (userdata=0x16fa980) at pulsecore/thread-posix.c:83
#12 0x00007faf5d2afd90 in start_thread () from /lib64/libpthread.so.0
#13 0x00007faf5c950f5d in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7faf4fcaf700 (LWP 32747)):
#0  0x00007faf5d2b5b70 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007faf5ef55568 in pa_semaphore_wait (s=0x1734150) at pulsecore/semaphore-posix.c:63
#2  0x00007faf5fb606da in pa_asyncmsgq_send (a=0x1700a10, object=<optimized out>, code=<optimized out>, userdata=<optimized out>, offset=<optimized out>, chunk=<optimized out>) at pulsecore/asyncmsgq.c:167
#3  0x00007faf4daa8046 in request_memblock (length=27636, o=0x1708130) at modules/module-combine-sink.c:410
#4  sink_input_pop_cb (i=<optimized out>, nbytes=27636, chunk=0x7faf4fcac4d0) at modules/module-combine-sink.c:421
#5  0x00007faf5fb87edb in pa_sink_input_peek (i=0x17120c0, slength=27636, chunk=0x7faf4fcac610, volume=0x7faf4fcac628) at pulsecore/sink-input.c:812
#6  0x00007faf5fb8e46a in fill_mix_info (s=0x16ec9b0, length=0x7faf4fcaecb8, info=0x7faf4fcac610, maxinfo=32) at pulsecore/sink.c:950
#7  0x00007faf5fb90e27 in pa_sink_render_into (s=0x16ec9b0, target=0x7faf4fcaed10) at pulsecore/sink.c:1189
#8  0x00007faf5fb91379 in pa_sink_render_into_full (s=0x16ec9b0, target=0x7faf4fcaeda0) at pulsecore/sink.c:1273
#9  0x00007faf501d3b80 in mmap_write (on_timeout=false, polled=false, sleep_usec=<synthetic pointer>, u=0x16d7b60) at modules/alsa/alsa-sink.c:632
#10 thread_func (userdata=0x16d7b60) at modules/alsa/alsa-sink.c:1656
#11 0x00007faf5ef55308 in internal_thread_func (userdata=0x16ebcf0) at pulsecore/thread-posix.c:83
#12 0x00007faf5d2afd90 in start_thread () from /lib64/libpthread.so.0
#13 0x00007faf5c950f5d in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7faf4ecad700 (LWP 32751)):
#0  0x00007faf5d2b5b70 in sem_wait () from /lib64/libpthread.so.0
#1  0x00007faf5ef55568 in pa_semaphore_wait (s=0x16da760) at pulsecore/semaphore-posix.c:63
#2  0x00007faf5fb606da in pa_asyncmsgq_send (a=0x1709c00, object=<optimized out>, code=<optimized out>, userdata=<optimized out>, offset=<optimized out>, chunk=<optimized out>) at pulsecore/asyncmsgq.c:167
#3  0x00007faf4daa8046 in request_memblock (length=27924, o=0x1709d10) at modules/module-combine-sink.c:410
#4  sink_input_pop_cb (i=<optimized out>, nbytes=27924, chunk=0x7faf4ecaa4d0) at modules/module-combine-sink.c:421
#5  0x00007faf5fb87edb in pa_sink_input_peek (i=0x171d8f0, slength=27924, chunk=0x7faf4ecaa610, volume=0x7faf4ecaa628) at pulsecore/sink-input.c:812
#6  0x00007faf5fb8e46a in fill_mix_info (s=0x16fab80, length=0x7faf4ecaccb8, info=0x7faf4ecaa610, maxinfo=32) at pulsecore/sink.c:950
#7  0x00007faf5fb90e27 in pa_sink_render_into (s=0x16fab80, target=0x7faf4ecacd10) at pulsecore/sink.c:1189
#8  0x00007faf5fb91379 in pa_sink_render_into_full (s=0x16fab80, target=0x7faf4ecacda0) at pulsecore/sink.c:1273
#9  0x00007faf501d3b80 in mmap_write (on_timeout=false, polled=false, sleep_usec=<synthetic pointer>, u=0x16f3880) at modules/alsa/alsa-sink.c:632
#10 thread_func (userdata=0x16f3880) at modules/alsa/alsa-sink.c:1656
#11 0x00007faf5ef55308 in internal_thread_func (userdata=0x16fa6f0) at pulsecore/thread-posix.c:83
#12 0x00007faf5d2afd90 in start_thread () from /lib64/libpthread.so.0
#13 0x00007faf5c950f5d in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7faf4daa1700 (LWP 32754)):
#0  0x00007faf5c896285 in raise () from /lib64/libc.so.6
#1  0x00007faf5c897b9b in abort () from /lib64/libc.so.6
#2  0x00007faf5ef3f20d in pa_memblockq_push (bq=0x1709df0, uchunk=<optimized out>) at pulsecore/memblockq.c:278
#3  0x00007faf5ef401f2 in pa_memblockq_push_align (bq=0x1709df0, chunk=<optimized out>) at pulsecore/memblockq.c:786
#4  0x00007faf4daa5650 in sink_input_process_msg (obj=0x171d8f0, code=7, data=0x0, offset=0, chunk=0x7faf4daa0bc0) at modules/module-combine-sink.c:574
#5  0x00007faf5fb60f51 in pa_asyncmsgq_process_one (a=0x1708270) at pulsecore/asyncmsgq.c:276
#6  0x00007faf4daa5f89 in render_memblock (length=27924, o=0x1709d10, u=0x16d71a0) at modules/module-combine-sink.c:365
#7  sink_process_msg (o=0x1708560, code=28, data=0x1709d10, offset=27924, chunk=0x0) at modules/module-combine-sink.c:779
#8  0x00007faf5fb7cdb2 in asyncmsgq_read_work (i=0x7faf3c000a40) at pulsecore/rtpoll.c:566
#9  0x00007faf5fb7c2bf in pa_rtpoll_run (p=0x16f3410, wait_op=true) at pulsecore/rtpoll.c:238
#10 0x00007faf4daa67ae in thread_func (userdata=0x16d71a0) at modules/module-combine-sink.c:331
#11 0x00007faf5ef55308 in internal_thread_func (userdata=0x170ff50) at pulsecore/thread-posix.c:83
#12 0x00007faf5d2afd90 in start_thread () from /lib64/libpthread.so.0
#13 0x00007faf5c950f5d in clone () from /lib64/libc.so.6



Thread 1 (Thread 0x7faf4daa1700 (LWP 32754)):
#0  0x00007faf5c896285 in raise () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007faf5c897b9b in abort () from /lib64/libc.so.6
No symbol table info available.
#2  0x00007faf5ef3f20d in pa_memblockq_push (bq=0x1709df0, uchunk=<optimized out>) at pulsecore/memblockq.c:278
        q = <optimized out>
        n = <optimized out>
        chunk = <optimized out>
        old = <optimized out>
        __func__ = "pa_memblockq_push"
        __PRETTY_FUNCTION__ = "pa_memblockq_push"
#3  0x00007faf5ef401f2 in pa_memblockq_push_align (bq=0x1709df0, chunk=<optimized out>) at pulsecore/memblockq.c:786
        r = <optimized out>
        rchunk = {memblock = 0x7faf3c07c650, index = 0, length = 1476}
        __func__ = "pa_memblockq_push_align"
        __PRETTY_FUNCTION__ = "pa_memblockq_push_align"
#4  0x00007faf4daa5650 in sink_input_process_msg (obj=0x171d8f0, code=7, data=0x0, offset=0, chunk=0x7faf4daa0bc0) at modules/module-combine-sink.c:574
        o = <optimized out>
#5  0x00007faf5fb60f51 in pa_asyncmsgq_process_one (a=0x1708270) at pulsecore/asyncmsgq.c:276
        object = 0x171d8f0
        code = 7
        data = 0x0
        chunk = {memblock = 0x7faf3c07c650, index = 0, length = 1476}
        offset = 0
        ret = <optimized out>
        __func__ = "pa_asyncmsgq_process_one"
        __PRETTY_FUNCTION__ = "pa_asyncmsgq_process_one"
#6  0x00007faf4daa5f89 in render_memblock (length=27924, o=0x1709d10, u=0x16d71a0) at modules/module-combine-sink.c:365
No locals.
#7  sink_process_msg (o=0x1708560, code=28, data=0x1709d10, offset=27924, chunk=0x0) at modules/module-combine-sink.c:779
        u = 0x16d71a0
#8  0x00007faf5fb7cdb2 in asyncmsgq_read_work (i=0x7faf3c000a40) at pulsecore/rtpoll.c:566
        ret = <optimized out>
        object = 0x1708560
        code = 28
        data = 0x1709d10
        chunk = {memblock = 0x0, index = 0, length = 0}
        offset = 27924
        __func__ = "asyncmsgq_read_work"
        __PRETTY_FUNCTION__ = "asyncmsgq_read_work"
#9  0x00007faf5fb7c2bf in pa_rtpoll_run (p=0x16f3410, wait_op=true) at pulsecore/rtpoll.c:238
        k = <optimized out>
        i = 0x7faf3c000a40
        r = 0
        timeout = {tv_sec = 0, tv_usec = 0}
        __func__ = "pa_rtpoll_run"
        __PRETTY_FUNCTION__ = "pa_rtpoll_run"
#10 0x00007faf4daa67ae in thread_func (userdata=0x16d71a0) at modules/module-combine-sink.c:331
        ret = <optimized out>
        u = 0x16d71a0
        __func__ = "thread_func"
        __PRETTY_FUNCTION__ = "thread_func"
#11 0x00007faf5ef55308 in internal_thread_func (userdata=0x170ff50) at pulsecore/thread-posix.c:83
        t = 0x170ff50
#12 0x00007faf5d2afd90 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#13 0x00007faf5c950f5d in clone () from /lib64/libc.so.6
No symbol table info available.

Comment 1 Tvrtko Ursulin 2012-09-21 14:48:57 UTC

I am not hitting this under 2.1 so I can only presume the problem has been fixed.

Comment 2 Tanu Kaskinen 2012-09-21 16:07:27 UTC

Thanks, resolving as fixed then.

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