Details
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Bug
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Resolution: Out of scope
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P1: Critical
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None
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6.5.1
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None
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ArchLinux
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Linux/X11
Description
When trying to run CMake, the project generated by QtDesignStudio received a segmentation error at the stage of creating the QGuiApplication object.
I checked after that on the simplest program, got a crash again on the QGuiApplication constructor.
Here is the code of the simplest program:
int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); return 0; }
This behavior appeared after updating Qt to version 6.5.1. I checked the build kit 6.4.3, the applications start and work fine.
Callstack with crash:
1 QGuiApplicationPrivate::setPalette(QPalette const&) 0x7ffff4bb156a 2 QGuiApplicationPrivate::updatePalette() 0x7ffff4bb2d73 3 QGuiApplicationPrivate::init() 0x7ffff4ba840f 4 QGuiApplication::QGuiApplication(int&, char * *, int) 0x7ffff4ba01fb 5 main main.cpp 135 0x55555555ad0f
In journal:
kernel: test[89975]: segfault at 0 ip 00007f9aeffb156a sp 00007fff24f7ab30 error 4 in libQt6Gui.so.6.5.1[7f9aeff0b000+5c0000] likely on CPU 5 (core 6, socket 0) kernel: Code: 8b 06 48 8b 80 98 00 00 00 48 39 d0 0f 85 0e 02 00 00 48 8b 3d a7 30 68 00 48 85 ff 0f 84 96 01 00 00 48 8b 07 31 f6 ff 50 50 <48> 8b 10 8b 40 08 48 89 54 24 10 89 44 24 18 f0 83 02 01 4c 8d 64 systemd[1]: Started Process Core Dump (PID 89978/UID 0). systemd-coredump[89979]: [🡕] Process 89975 (test) of user 1000 dumped core. Stack trace of thread 89975: #0 0x00007f9aeffb156a _ZN22QGuiApplicationPrivate10setPaletteERK8QPalette (libQt6Gui.so.6 + 0x1b156a) #1 0x00007f9aeffb2d73 _ZN22QGuiApplicationPrivate13updatePaletteEv (libQt6Gui.so.6 + 0x1b2d73) #2 0x00007f9aeffa840f _ZN22QGuiApplicationPrivate4initEv (libQt6Gui.so.6 + 0x1a840f) #3 0x00007f9aeffa01fb _ZN15QGuiApplicationC2ERiPPci (libQt6Gui.so.6 + 0x1a01fb) #4 0x00005572af575d0f n/a (/home/build/test/Desktop-Debug/test + 0x6d0f) #5 0x00007f9aef239850 n/a (libc.so.6 + 0x23850) #6 0x00007f9aef23990a __libc_start_main (libc.so.6 + 0x2390a) #7 0x00005572af575925 n/a (/home/build/test/Desktop-Debug/test + 0x6925) ELF object binary architecture: AMD x86-64
