pulseaudio crashed with SIGABRT in pa_sink_input_process_rewind() from pa_sink_process_rewind() from pa_sink_input_set_state_within_thread()

[Taras Prokopenko]

trying to load module-ladspa-sink with master=uplink (virtual sink) when client was playing stream

i.e

1) deadbeef is playing (OK)
2) pacmd load-module module-virtual-source source_name=vsource uplink_sink=uplink (OK)
3) pacmd load-module module-ladspa-sink sink_name=veq master=uplink plugin=ladspa_dsp label=ladspa_dsp:eq (pulseaudio crashed)

ProblemType: Crash
DistroRelease: Ubuntu 14.04
Package: pulseaudio 1:4.0-0ubuntu11.1
ProcVersionSignature: Ubuntu 3.16.0-77.99~14.04.1-generic 3.16.7-ckt27
Uname: Linux 3.16.0-77-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.27
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: tp 24292 F.... pulseaudio
 /dev/snd/controlC1: tp 24292 F.... pulseaudio
CrashCounter: 1
CurrentDesktop: Unity
Date: Tue May 8 16:34:39 2018
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2015-07-27 (1016 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
ProcCmdline: /usr/bin/pulseaudio --start --log-target=syslog
Signal: 6
SourcePackage: pulseaudio
StacktraceTop:
 pa_sink_input_process_rewind () from /usr/lib/libpulsecore-4.0.so
 pa_sink_process_rewind () from /usr/lib/libpulsecore-4.0.so
 pa_sink_input_set_state_within_thread () from /usr/lib/libpulsecore-4.0.so
 pa_sink_process_msg () from /usr/lib/libpulsecore-4.0.so
 ?? () from /usr/lib/libpulsecore-4.0.so
Title: pulseaudio crashed with SIGABRT in pa_sink_input_process_rewind()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin plugdev sambashare sudo wireshark
dmi.bios.date: 07/23/2010
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2105
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: M4A785TD-V EVO
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2105:bd07/23/2010:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A785TD-VEVO:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
modified.conffile..etc.pulse.daemon.conf: [modified]
mtime.conffile..etc.pulse.daemon.conf: 2017-03-23T19:43:36.853439

[Apport retracing service (apport)]

StacktraceTop:
 pa_sink_input_process_rewind (i=i@entry=0xf285f0, nbytes=nbytes@entry=0) at pulsecore/sink-input.c:1063
 pa_sink_process_rewind (s=0xf41e10, nbytes=0) at pulsecore/sink.c:1000
 pa_sink_input_set_state_within_thread (i=0xf285f0, state=PA_SINK_INPUT_RUNNING) at pulsecore/sink-input.c:1922
 pa_sink_process_msg (o=0xf41e10, code=<optimized out>, userdata=0xf285f0, offset=0, chunk=<optimized out>) at pulsecore/sink.c:2486
 asyncmsgq_read_work (i=0xe34c30) at pulsecore/rtpoll.c:564

[Daniel van Vugt (vanvugt)]

Although Ubuntu 14.04 is still supported it is due to reach end-of-life next year.

https://wiki.ubuntu.com/Releases

I recommend upgrading to a newer version of Ubuntu, not least because PulseAudio 4.0 is very much out of date now and the developers would be unlikely to be able to help (the current PulseAudio version is 11.1).