kwave crashed with SIGSEGV [NULL pointer dereference in libmirclient.so.9 after mir::dispatch::MultiplexingDispatchable::dispatch(unsigned int)]

[dinamic]

ubuntu 17.04 Unity 8
kwave crashed with SIGSEGV

ProblemType: Crash
DistroRelease: Ubuntu 17.04
Package: kwave 16.12.1-0ubuntu1
ProcVersionSignature: Ubuntu 4.10.0-9.11-generic 4.10.0
Uname: Linux 4.10.0-9-generic x86_64
ApportVersion: 2.20.4-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity:Unity8
Date: Wed Feb 22 12:42:59 2017
ExecutablePath: /usr/bin/kwave
ExecutableTimestamp: 1484842756
InstallationDate: Installed on 2016-12-12 (71 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Alpha amd64 (20161108)
ProcCmdline: kwave
ProcCwd: /home/pixel
Signal: 11
SourcePackage: kwave
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libmirclient.so.9
 ?? () from /usr/lib/x86_64-linux-gnu/libmirclient.so.9
 ?? () from /usr/lib/x86_64-linux-gnu/libmirclient.so.9
 ?? () from /usr/lib/x86_64-linux-gnu/libmirclient.so.9
Title: kwave crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()

[Apport retracing service (apport)]

Thank you for your report!

However, processing it in order to get sufficient information for the
developers failed (it does not generate a useful symbolic stack trace). This
might be caused by some outdated packages which were installed on your system
at the time of the report:

no debug symbol package found for libmad0

Please upgrade your system to the latest package versions. If you still
encounter the crash, please file a new report.

Thank you for your understanding, and sorry for the inconvenience!

[Daniel van Vugt (vanvugt)]

All I can figure out from the ProcMaps and crash address is that the top of the stack is something in: mir::client::rpc::MirProtobufRpcChannel

[Launchpad Janitor (janitor)]

[Expired for Mir because there has been no activity for 60 days.]

[Launchpad Janitor (janitor)]

[Expired for mir (Ubuntu) because there has been no activity for 60 days.]