vmpk crashed with SIGSEGV in QList<QPostEvent>::node_copy()

[Joe Linux]

VMPM 0.4 is freezing each time when I'm trying to use it with MusE Sequencer 2.1.2 under a fresh install of Ubuntu Studio 17.10.

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: vmpk 0.4.0-3
ProcVersionSignature: Ubuntu 4.13.0-16.19-lowlatency 4.13.4
Uname: Linux 4.13.0-16-lowlatency x86_64
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Oct 27 19:20:42 2017
ExecutablePath: /usr/bin/vmpk
InstallationDate: Installed on 2017-10-21 (6 days ago)
InstallationMedia: Ubuntu-Studio 17.10 "Artful Aardvark" - Release amd64 (20171017.1)
ProcCmdline: vmpk
ProcEnviron:
 LANGUAGE=fr_FR
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SegvAnalysis:
 Segfault happened at: 0x7fe3f85500de: mov (%rdx),%rcx
 PC (0x7fe3f85500de) ok
 source "(%rdx)" (0x2a2d13000000000) not located in a known VMA region (needed readable region)!
 destination "%rcx" ok
 Stack memory exhausted (SP below stack segment)
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: vmpk
StacktraceTop:
 ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 QCoreApplication::postEvent(QObject*, QEvent*, int) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
 midiCallback(double, std::vector<unsigned char, std::allocator<unsigned char> >*, void*) ()
 alsaMidiHandler ()
 start_thread (arg=0x7fe3e373d700) at pthread_create.c:465
Title: vmpk crashed with SIGSEGV in QCoreApplication::postEvent()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 QList<QPostEvent>::node_copy (src=0x2ac9a28, to=0x7fe3a7681da8, from=0x7fe3972ba028, this=0x1cef150) at ../../include/QtCore/../../src/corelib/tools/qlist.h:401
 QList<QPostEvent>::detach_helper (this=this@entry=0x1cef150, alloc=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qlist.h:711
 QList<QPostEvent>::detach_helper (this=0x1cef150) at ../../include/QtCore/../../src/corelib/tools/qlist.h:725
 QList<QPostEvent>::detach (this=0x1cef150) at ../../include/QtCore/../../src/corelib/tools/qlist.h:139
 QList<QPostEvent>::end (this=0x1cef150) at ../../include/QtCore/../../src/corelib/tools/qlist.h:270

[Ross Gammon (rosco2)]

Hi Joe,
Thanks for reporting this bug.
Vmpk 0.7.2-1 is now in the focal development release (to become 20.04).
I am not sure exactly how to test vmpk with MusE. Are you able to confirm if this latest version works with MusE without crashing?
Regards,
Ross

[Launchpad Janitor (janitor)]

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