gnome-control-center crashed with SIGSEGV in _pa_context_set_card_profile_by_index_cb()

[Timo Aaltonen]

g-c-c crashes if the (usb) audio device is detached while the "test speakers" window is open.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: gnome-control-center 1:3.28.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Mon Apr 23 09:29:17 2018
ExecutablePath: /usr/bin/gnome-control-center
InstallationDate: Installed on 2016-01-12 (831 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
ProcCmdline: gnome-control-center --overview
SegvAnalysis:
 Segfault happened at: 0x7f6d980825a1 <__strlen_avx2+17>: vpcmpeqb (%rdi),%ymm0,%ymm1
 PC (0x7f6d980825a1) ok
 source "(%rdi)" (0x00000002) not located in a known VMA region (needed readable region)!
 destination "%ymm0" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-control-center
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
 ?? () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
 pa_pdispatch_run () from /usr/lib/x86_64-linux-gnu/pulseaudio/libpulsecommon-11.1.so
 ?? () from /usr/lib/x86_64-linux-gnu/libpulse.so.0
Title: gnome-control-center crashed with SIGSEGV in pa_pdispatch_run()
UpgradeStatus: Upgraded to bionic on 2018-04-05 (17 days ago)
UserGroups: libvirt libvirtd lxd sambashare sbuild sudo

[Apport retracing service (apport)]

StacktraceTop:
 _pa_context_set_card_profile_by_index_cb (context=<optimized out>, success=0, userdata=<optimized out>) at ../subprojects/gvc/gvc-mixer-card.c:213
 pa_context_simple_ack_callback (pd=pd@entry=0x56188aaef540, command=command@entry=0, tag=tag@entry=125, t=t@entry=0x56188a9c4000, userdata=userdata@entry=0x56188abc4540) at pulse/context.c:1200
 run_action (pd=0x56188aaef540, r=0x56188ab10610, command=0, ts=0x56188a9c4000) at pulsecore/pdispatch.c:288
 pa_pdispatch_run (pd=0x56188aaef540, packet=packet@entry=0x56188aa89f20, ancil_data=ancil_data@entry=0x56188a933b58, userdata=userdata@entry=0x56188aad8f40) at pulsecore/pdispatch.c:341
 pstream_packet_callback (p=<optimized out>, packet=0x56188aa89f20, ancil_data=0x56188a933b58, userdata=0x56188aad8f40) at pulse/context.c:349

[Sebastien Bacher (seb128)]

Could you get a valgrind log for the issue?

[Launchpad Janitor (janitor)]

[Expired for gnome-control-center (Ubuntu) because there has been no activity for 60 days.]