About half the times I try to use KRunner for math it crashes. For instance, I hit Alt+F2 to open KRunner, start typing a math formula like =4*10, but it crashes before I can finish typing. Here is the output of journalctl -b at around the crash:
May 31 17:34:15 desk dbus-daemon[1993]: [session uid=1000 pid=1993] Activating via systemd: service name='org.kde.krunner' unit='plasma-krunner.service' requested by ':1.14' (uid=1000 pid=2686 comm="/usr/bin/kglobalaccel5")
May 31 17:34:15 desk systemd[1788]: Starting KRunner...
May 31 17:34:15 desk dbus-daemon[1993]: [session uid=1000 pid=1993] Successfully activated service 'org.kde.krunner'
May 31 17:34:15 desk systemd[1788]: Started KRunner.
May 31 17:34:15 desk krunner[73914]: QCommandLineParser: argument list cannot be empty, it should contain at least the executable name
May 31 17:34:27 desk krunner[73914]: QCommandLineParser: argument list cannot be empty, it should contain at least the executable name
May 31 17:34:30 desk krunner[73914]: KCrash: crashing... crashRecursionCounter = 2
May 31 17:34:30 desk krunner[73914]: KCrash: Application Name = krunner path = /usr/bin pid = 73914
May 31 17:34:30 desk krunner[73914]: KCrash: Arguments: /usr/bin/krunner
May 31 17:34:30 desk krunner[73914]: KCrash: Attempting to start /usr/lib/drkonqi
May 31 17:34:30 desk krunner[73914]: amdgpu: amdgpu_cs_query_reset_state failed. (-9)
May 31 17:34:30 desk krunner[73914]: amdgpu: amdgpu_cs_query_reset_state failed. (-9)
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: Failed to allocate a buffer:
May 31 17:34:30 desk krunner[73914]: amdgpu: size : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: alignment : 2097152 bytes
May 31 17:34:30 desk krunner[73914]: amdgpu: domains : 4
May 31 17:34:30 desk krunner[73914]: amdgpu: flags : 6
May 31 17:34:30 desk krunner[73914]: amdgpu: The CS has been rejected (-9). Recreate the context.
May 31 17:34:30 desk krunner[73914]: amdgpu: amdgpu_cs_query_reset_state failed. (-9)
May 31 17:34:30 desk krunner[73914]: amdgpu: The CS has been rejected (-9). Recreate the context.
May 31 17:34:30 desk kded5[2633]: Registering ":1.512/StatusNotifierItem" to system tray
May 31 17:34:30 desk plasmashell[2700]: Could not find the Plasmoid for Plasma::FrameSvgItem(0x561f6ac7c9b0) QQmlContext(0x561f683c3180) QUrl("file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml")
May 31 17:34:30 desk plasmashell[2700]: Could not find the Plasmoid for Plasma::FrameSvgItem(0x561f6ac7c9b0) QQmlContext(0x561f683c3180) QUrl("file:///usr/share/plasma/plasmoids/org.kde.plasma.notifications/contents/ui/global/Globals.qml")
May 31 17:34:31 desk plasmashell[2700]: QFont::setPointSizeF: Point size <= 0 (0.000000), must be greater than 0
May 31 17:34:32 desk krunner[73914]: Unable to start Dr. Konqi
May 31 17:34:32 desk kded5[2633]: Service ":1.512" unregistered
May 31 17:34:32 desk systemd[1788]: plasma-krunner.service: Main process exited, code=exited, status=255/EXCEPTION
May 31 17:34:32 desk systemd[1788]: plasma-krunner.service: Failed with result 'exit-code'.
I see from the many references to amdgpu that maybe it has something to do with my video drivers. How would one proceed to debug this issue?
Thread 104 "GlobalQueue[25]" received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x1553ed10e6c0 (LWP 153161)]
0x0000155521862537 in MathStructure::set (this=0x1554e5ec99c0, o=..., merge_precision=<optimized out>) at /usr/src/debug/libqalculate/libqalculate-4.6.1/libqalculate/MathStructure.cc:218
Downloading source file /usr/src/debug/libqalculate/libqalculate-4.6.1/libqalculate/MathStructure.cc
218 if(var_bak) var_bak->ref();
(gdb) backtrace
#0 0x0000155521862537 in MathStructure::set (this=0x1554e5ec99c0, o=..., merge_precision=<optimized out>) at /usr/src/debug/libqalculate/libqalculate-4.6.1/libqalculate/MathStructure.cc:218
#1 0x00001555217c3d55 in CalculateThread::run (this=0x155504040560) at /usr/src/debug/libqalculate/libqalculate-4.6.1/libqalculate/Calculator-calculate.cc:86
#2 0x0000155521876113 in Thread::doRun (data=0x155504040560) at /usr/src/debug/libqalculate/libqalculate-4.6.1/libqalculate/util.cc:1078
#3 0x0000155552c9d44b in start_thread (arg=<optimized out>) at pthread_create.c:444
#4 0x0000155552d20e40 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
(gdb)
but I don’t know what to do with that. None of the lines seem to reference any KDE libraries or executables.
I tried building KRunner from source but I am unable to find the executable. I followed the KDE developer guide, set up my system, and built KRunner with kdesrc-build krunner. But where is the executable built? I ran find -name krunner in the source, build, and install directories (default for the latter is ~/kde) but nothing comes up. Is there a way for me to build the executable myself? I can usually figure out my KDE related errors by playing with the source code directly.
I checked and ~/kde/usr/bin/krunner does not exist. If I run kdesrc-run krunner it says
Program "krunner" does not exist.
Try to set executable name with -e option.
However, the KRunner package seems to be built successfully. Here are build.log
# kdesrc-build running: 'make' '-j32'
# from directory: /home/raul/builds/kde/krunner
[ 1%] Built target runnerpython_kapptemplate
[ 3%] Built target runner_kapptemplate
[ 4%] Automatic MOC for target KF5Runner
[ 4%] Built target KF5Runner_autogen
[ 23%] Built target KF5Runner
[ 25%] Automatic MOC for target fakerunnerplugin
[ 31%] Automatic MOC for target runnercontexttest
[ 31%] Automatic MOC for target runnermodelplugin
[ 31%] Automatic MOC for target testmetadataconversion
[ 31%] Automatic MOC for target runnermatchmethodstest
[ 33%] Automatic MOC for target testremoterunner
[ 33%] Built target runnercontexttest_autogen
[ 34%] Built target fakerunnerplugin_autogen
[ 34%] Built target runnermodelplugin_autogen
[ 34%] Built target testremoterunner_autogen
[ 34%] Built target testmetadataconversion_autogen
[ 34%] Built target runnermatchmethodstest_autogen
[ 49%] Built target fakerunnerplugin
[ 49%] Built target runnermatchmethodstest
[ 49%] Built target runnercontexttest
[ 53%] Built target testmetadataconversion
[ 71%] Built target testremoterunner
[ 69%] Built target runnermodelplugin
[ 73%] Automatic MOC for target runnermanagerhistorytest
[ 74%] Automatic MOC for target runnermanagersinglerunnermodetest
[ 76%] Automatic MOC for target dbusrunnertest
[ 77%] Automatic MOC for target runnermanagertest
[ 77%] Built target runnermanagerhistorytest_autogen
[ 77%] Built target runnermanagersinglerunnermodetest_autogen
[ 77%] Built target runnermanagertest_autogen
[ 77%] Built target dbusrunnertest_autogen
[ 84%] Built target runnermanagerhistorytest
[ 88%] Built target runnermanagersinglerunnermodetest
[ 96%] Built target runnermanagertest
[100%] Built target dbusrunnertest
of running kdesrc-build krunner. But I don’t see the krunner executable anywhere. In fact, if I run find -name CMakeLists.txt | xargs grep -i 'add_executable(krunner' on the entire KDE source tree nothing comes up. I’m guessing it’s defined differently, like a byproduct of some other CMake command.