Brewtarget 3.0.3-1 segfaults upon start

[Athos Ribeiro]

On a lunar system, brewtarget fails to start.

This is the error I get when trying to do so:

Thread 1 "brewtarget" received signal SIGSEGV, Segmentation fault.
doActivate<false> (sender=0x0, signal_index=9, argv=0x7fffffffd480) at kernel/qobject.cpp:3801
3801 QObjectPrivate *sp = QObjectPrivate::get(sender);

sender seems to be a null pointer here.

I did find a similar issue with wireshark in the past at https://bugs.gentoo.org/754021, which suggests this may be an LTO issue.

Here is a backtrace of the failure:

(gdb) bt
#0 doActivate<false> (sender=0x0, signal_index=9, argv=0x7fffffffd480) at kernel/qobject.cpp:3801
#1 0x00007ffff62ecaa7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7ffff6cc10c0 <QGuiApplication::staticMetaObject>, local_signal_index=local_signal_index@entry=1,
    argv=argv@entry=0x7fffffffd480) at kernel/qobject.cpp:3979
#2 0x00007ffff6734166 in QGuiApplication::screenAdded (this=<optimized out>, _t1=<optimized out>, _t1@entry=0xa1efd0) at .moc/moc_qguiapplication.cpp:389
#3 0x00007ffff6718692 in QWindowSystemInterface::handleScreenAdded (ps=ps@entry=0x977630, isPrimary=<optimized out>) at kernel/qwindowsysteminterface.cpp:826
#4 0x00007ffff12fca90 in QXcbConnection::initializeScreens (this=this@entry=0x9783b0) at qxcbconnection_screens.cpp:413
#5 0x00007ffff12d3dc4 in QXcbConnection::QXcbConnection (this=0x9783b0, nativeInterface=<optimized out>, canGrabServer=<optimized out>, defaultVisualId=4294967295, displayName=<optimized out>)
    at qxcbconnection.cpp:103
#6 0x00007ffff12d7519 in QXcbIntegration::QXcbIntegration (this=this@entry=0x978290, parameters=..., argc=@0x7fffffffdacc: 1, argv=argv@entry=0x7fffffffdcb8)
    at ../../../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:138
#7 0x00007ffff7fbb510 in QXcbIntegrationPlugin::create (this=<optimized out>, system=..., parameters=..., argc=@0x7fffffffdacc: 1, argv=0x7fffffffdcb8) at qxcbmain.cpp:56
#8 0x00007ffff673851a in init_platform (argv=<optimized out>, argc=<optimized out>, platformThemeName=..., platformPluginPath=..., pluginNamesWithArguments=...) at kernel/qguiapplication.cpp:1223
#9 QGuiApplicationPrivate::createPlatformIntegration (this=0x8b7400) at kernel/qguiapplication.cpp:1477
#10 0x00007ffff6739ae8 in QGuiApplicationPrivate::createEventDispatcher (this=<optimized out>) at kernel/qguiapplication.cpp:1494
#11 0x00007ffff62c18f5 in QCoreApplicationPrivate::init (this=this@entry=0x8b7400) at kernel/qcoreapplication.cpp:835
#12 0x00007ffff673c9f0 in QGuiApplicationPrivate::init (this=this@entry=0x8b7400) at kernel/qguiapplication.cpp:1523
#13 0x00007ffff6f7155d in QApplicationPrivate::init (this=0x8b7400) at kernel/qapplication.cpp:513
#14 0x00007ffff6f71640 in QApplication::QApplication (this=this@entry=0x7fffffffdb30, argc=@0x7fffffffdacc: 1, argv=argv@entry=0x7fffffffdcb8, _internal=_internal@entry=331526) at kernel/qapplication.cpp:501
#15 0x00000000004d5dc4 in main (argc=<optimized out>, argv=0x7fffffffdcb8) at ./src/main.cpp:89

[Launchpad Janitor (janitor)]

This bug was fixed in the package brewtarget - 3.0.3-1ubuntu1

---------------
brewtarget (3.0.3-1ubuntu1) lunar; urgency=medium

  * Disable LTO. (LP: #2004076)

 -- Athos Ribeiro <email address hidden> Sat, 28 Jan 2023 12:35:20 -0300