pulseaudio crashed with SIGABRT in subscribe_callbac() from defer_cb() from dispatch_defer() from pa_mainloop_dispatch() from pa_mainloop_iterate()

[Christopher]

https://errors.ubuntu.com/problem/50ffcb3cd067bebb38c6999f57504f533bc61800

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PulseAudio crash error occurred without PulseAudio or any audio application open. Error occurred while opening new Firefox 32 tab.

ProblemType: Crash
DistroRelease: Ubuntu 14.10
Package: pulseaudio 1:4.0-0ubuntu20
ProcVersionSignature: Ubuntu 3.16.0-12.18-generic 3.16.1
Uname: Linux 3.16.0-12-generic x86_64
ApportVersion: 2.14.7-0ubuntu2
Architecture: amd64
CurrentDesktop: LXDE
Date: Mon Sep 8 08:42:12 2014
ExecutablePath: /usr/bin/pulseaudio
InstallationDate: Installed on 2014-09-02 (6 days ago)
InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140826.1)
ProcCmdline: /usr/bin/pulseaudio --start --log-target=syslog
ProcEnviron:
 LANGUAGE=en_US
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 6
SourcePackage: pulseaudio
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
dmi.bios.date: 01/16/2014
dmi.bios.vendor: TOSHIBA
dmi.bios.version: 1.60
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: VG10ST
dmi.board.vendor: TOSHIBA
dmi.board.version: To be filled by O.E.M.
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: TOSHIBA
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnTOSHIBA:bvr1.60:bd01/16/2014:svnTOSHIBA:pnSatelliteP50-A:pvrPSPMKU-04002Q:rvnTOSHIBA:rnVG10ST:rvrTobefilledbyO.E.M.:cvnTOSHIBA:ct10:cvrToBeFilledByO.E.M.:
dmi.product.name: Satellite P50-A
dmi.product.version: PSPMKU-04002Q
dmi.sys.vendor: TOSHIBA

[Apport retracing service (apport)]

This crash has the same stack trace characteristics as bug #896602. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

[Apport retracing service (apport)]

StacktraceTop:
 subscribe_callback (c=<optimized out>, t=<optimized out>, idx=<optimized out>, userdata=<optimized out>) at modules/module-stream-restore.c:1291
 defer_cb (m=<optimized out>, de=<optimized out>, userdata=0xef2ae0) at pulsecore/core-subscribe.c:174
 dispatch_defer (m=0xef3ef0) at pulse/mainloop.c:682
 pa_mainloop_dispatch (m=m@entry=0xef3ef0) at pulse/mainloop.c:895
 pa_mainloop_iterate (m=0xef3ef0, block=<optimized out>, retval=0x7fffe7558218) at pulse/mainloop.c:935

[Chris Gagnon (chris.gagnon)]

This was the #2 crasher for the 20141002 rootfs https://errors.ubuntu.com/problem/50ffcb3cd067bebb38c6999f57504f533bc61800

[Chris Gagnon (chris.gagnon)]

This is happening a lot on mako, example: https://errors.ubuntu.com/oops/90850fa4-4a1a-11e4-9a6f-fa163e525ba7

[Chris Gagnon (chris.gagnon)]

This is also happening on the krillin https://errors.ubuntu.com/oops/37693dc4-49ec-11e4-b980-fa163e373683

[Ricardo Salveti (rsalveti)]

Chris Gagnon, the mako and krillin bug are not related with this bug and it was already fixed at https://launchpad.net/ubuntu/+source/ubuntu-touch-session/0.108+14.10.20140929-0ubuntu2