https://bugs.kde.org/show_bug.cgi?id=384005
--- Comment #3 from Pranav Sharma <pranav.sharma....@gmail.com> --- nevermind, i forgot to start gdb with sudo. It seems to be in nvidia's gl. Starting program: /usr/lib/x86_64-linux-gnu/libexec/kscreenlocker_greet --testing [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root' [New Thread 0x7fffe7aa8700 (LWP 8383)] QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root' [New Thread 0x7fffe5936700 (LWP 8385)] [New Thread 0x7fffe5135700 (LWP 8391)] QObject: Cannot create children for a parent that is in a different thread. (Parent is ScreenLocker::UnlockApp(0x7fffffffe3b0), parent's thread is QThread(0x635c40), current thread is QThread(0x8b8eb0) QObject::installEventFilter(): Cannot filter events for objects in a different thread. QObject: Cannot create children for a parent that is in a different thread. (Parent is ScreenLocker::UnlockApp(0x7fffffffe3b0), parent's thread is QThread(0x635c40), current thread is QThread(0x8b8eb0) org.kde.kcoreaddons: Failed to establish shared memory mapping, will fallback to private memory -- memory usage will increase QObject: Cannot create children for a parent that is in a different thread. (Parent is ScreenLocker::UnlockApp(0x7fffffffe3b0), parent's thread is QThread(0x635c40), current thread is QThread(0x8b8eb0) QObject::installEventFilter(): Cannot filter events for objects in a different thread. Locked at 1503676470 [New Thread 0x7fffd4d5a700 (LWP 8392)] Thread 5 "QSGRenderThread" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffd4d5a700 (LWP 8392)] 0x00007fffdedffc02 in ?? () from /usr/lib/nvidia-384/libnvidia-glcore.so.384.69 (gdb) -- You are receiving this mail because: You are watching all bug changes.