Description of problem: Segfault on Qt application (Telegram Desktop) start. Version-Release number of selected component (if applicable): 5.15.1-1.fc34 How reproducible: Always. Steps to Reproduce: 1. Download Telegram Desktop's RPM from RPM Fusion Koji: http://koji.rpmfusion.org/koji/buildinfo?buildID=16663 2. Install with RPM Fusion repo enabled. 3. Run /usr/bin/telegram-desktop Actual results: Segmentation fault: #0 0x00007fb448beed6b _Z10doActivateILb0EEvP7QObjectiPPv (libQt5Core.so.5 + 0x287d6b) #1 0x00007fb448f9aed2 _ZN15QGuiApplication11screenAddedEP7QScreen (libQt5Gui.so.5 + 0x113ed2) #2 0x00007fb448f8b22c _ZN22QWindowSystemInterface17handleScreenAddedEP15QPlatformScreenb (libQt5Gui.so.5 + 0x10422c) #3 0x00007fb4342c42a0 _ZN14QXcbConnection17initializeScreensEv (libQt5XcbQpa.so.5 + 0x632a0) #4 0x00007fb43429fbc0 _ZN14QXcbConnectionC1EP19QXcbNativeInterfacebjPKc (libQt5XcbQpa.so.5 + 0x3ebc0) #5 0x00007fb4342a2843 _ZN15QXcbIntegrationC1ERK11QStringListRiPPc (libQt5XcbQpa.so.5 + 0x41843) #6 0x00007fb44b71b46f _ZN21QXcbIntegrationPlugin6createERK7QStringRK11QStringListRiPPc (libqxcb.so + 0x246f) #7 0x00007fb448f93f3b _ZN27QPlatformIntegrationFactory6createERK7QStringRK11QStringListRiPPcS2_ (libQt5Gui.so.5 + 0x10cf3b) #8 0x00007fb448f9e680 _ZN22QGuiApplicationPrivate25createPlatformIntegrationEv (libQt5Gui.so.5 + 0x117680) #9 0x00007fb448f9fc90 _ZN22QGuiApplicationPrivate21createEventDispatcherEv (libQt5Gui.so.5 + 0x118c90) #10 0x00007fb448bc6e96 _ZN23QCoreApplicationPrivate4initEv (libQt5Core.so.5 + 0x25fe96) #11 0x00007fb448fa25e4 _ZN22QGuiApplicationPrivate4initEv (libQt5Gui.so.5 + 0x11b5e4) #12 0x00007fb4482ebef9 _ZN19QApplicationPrivate4initEv (libQt5Widgets.so.5 + 0x16cef9) #13 0x0000564fca929c0d _ZN4Core8Launcher18executeApplicationEv (telegram-desktop + 0x9f5c0d) #14 0x0000564fca92ad98 _ZN4Core8Launcher4execEv (telegram-desktop + 0x9f6d98) #15 0x0000564fca37475c main (telegram-desktop + 0x44075c) #16 0x00007fb44788e192 __libc_start_main (libc.so.6 + 0x28192) #17 0x0000564fca3a1dce _start (telegram-desktop + 0x46ddce) Stack trace of thread 3277: #0 0x00007fb44795c94f __poll (libc.so.6 + 0xf694f) #1 0x00007fb4480d7842 _xcb_conn_wait.part.0 (libxcb.so.1 + 0xd842) #2 0x00007fb4480d91cc xcb_wait_for_event (libxcb.so.1 + 0xf1cc) #3 0x00007fb4342c0c70 _ZN14QXcbEventQueue3runEv (libQt5XcbQpa.so.5 + 0x5fc70) #4 0x00007fb448a2f4bc _ZN14QThreadPrivate5startEPv (libQt5Core.so.5 + 0xc84bc) #5 0x00007fb44b4b83f9 start_thread (libpthread.so.0 + 0x93f9) #6 0x00007fb447967ad3 __clone (libc.so.6 + 0x101ad3) Expected results: Successful launch. Additional info:
Building Telegram Desktop without LTO fixed this issue.