The bug causes Krunner to crash. Reproducible: Always Steps to Reproduce: 1. Fiddle with a krunner query (repeatedly change it). For example, build up a 'complex' calculation for krunner to compute. 2. <segfault> in the Krunner process Expected Results: I'd expected krunner to be able to compute things, not being killed by a segfault in baloo. :) GDB session (gdb `which krunner`): (gdb) run Starting program: /usr/bin/krunner [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffe3d84700 (LWP 32112)] [New Thread 0x7fffdbfff700 (LWP 32113)] Trying to use rootObject before initialization is completed, whilst using setInitializationDelayed. Forcing completion org.kde.kurifilter-ikws: ":q" org.kde.kurifilter-ikws: Keywords Engine: Loading config... org.kde.kurifilter-ikws: Web Shortcuts Enabled: true org.kde.kurifilter-ikws: Default Shortcut: "" org.kde.kurifilter-ikws: Keyword Delimiter: : Error contacting the daemon! I/O warning : failed to load external entity "/home/prometheus/.qalculate/eurofxref-daily.xml" I/O warning : failed to load external entity "/home/prometheus/.qalculate/eurofxref-daily.xml" QObject::connect: No such signal KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) QObject::connect: (receiver name: 'Activities') [New Thread 0x7fffccd6b700 (LWP 32114)] [New Thread 0x7fffc7fff700 (LWP 32115)] [New Thread 0x7fffc77fe700 (LWP 32116)] [New Thread 0x7fffc6ffd700 (LWP 32117)] [New Thread 0x7fffc67fc700 (LWP 32118)] [New Thread 0x7fffc5ffb700 (LWP 32119)] [New Thread 0x7fffc57fa700 (LWP 32120)] [New Thread 0x7fffc4ff9700 (LWP 32121)] org.kde.kurifilter-shorturi: "0" org.kde.kurifilter-shorturi: path = "0" isLocalFullPath= false exists= false url= QUrl( "0" ) org.kde.kurifilter-shorturi: "0." org.kde.kurifilter-shorturi: path = "0." isLocalFullPath= false exists= false url= QUrl( "0." ) org.kde.kurifilter-shorturi: "0.5" org.kde.kurifilter-shorturi: path = "0.5" isLocalFullPath= false exists= false url= QUrl( "0.5" ) session switching to "0.5" org.kde.kurifilter-shorturi: "0.5+" org.kde.kurifilter-shorturi: path = "0.5+" isLocalFullPath= false exists= false url= QUrl( "0.5+" ) session switching to "0.5+" org.kde.kurifilter-shorturi: "0.5+s" org.kde.kurifilter-shorturi: path = "0.5+s" isLocalFullPath= false exists= false url= QUrl( "0.5+s" ) session switching to "0.5+s" org.kde.kurifilter-shorturi: "0.5+si" session switching to "0.5+si" org.kde.kurifilter-shorturi: path = "0.5+si" isLocalFullPath= false exists= false url= QUrl( "0.5+si" ) org.kde.kurifilter-shorturi: "0.5+sin" org.kde.kurifilter-shorturi: path = "0.5+sin" isLocalFullPath= false exists= false url= QUrl( "0.5+sin" ) session switching to "0.5+sin" org.kde.kurifilter-shorturi: "0.5+sin(" org.kde.kurifilter-shorturi: path = "0.5+sin(" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(" ) session switching to "0.5+sin(" QObject::connect: No such signal KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) QObject::connect: (receiver name: 'Activities') org.kde.kurifilter-shorturi: "0.5+sin(s" org.kde.kurifilter-shorturi: path = "0.5+sin(s" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(s" ) session switching to "0.5+sin(s" org.kde.kurifilter-shorturi: "0.5+sin(si" org.kde.kurifilter-shorturi: path = "0.5+sin(si" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(si" ) session switching to "0.5+sin(si" org.kde.kurifilter-shorturi: "0.5+sin(sin" org.kde.kurifilter-shorturi: path = "0.5+sin(sin" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin" ) session switching to "0.5+sin(sin" org.kde.kurifilter-shorturi: "0.5+sin(sin(" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(" ) session switching to "0.5+sin(sin(" org.kde.kurifilter-shorturi: "0.5+sin(sin(0" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0" ) session switching to "0.5+sin(sin(0" org.kde.kurifilter-shorturi: "0.5+sin(sin(0." org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0." isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0." ) session switching to "0.5+sin(sin(0." org.kde.kurifilter-shorturi: "0.5+sin(sin(0.5" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0.5" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0.5" ) session switching to "0.5+sin(sin(0.5" org.kde.kurifilter-shorturi: "0.5+sin(sin(0.5)" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0.5)" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0.5)" ) session switching to "0.5+sin(sin(0.5)" org.kde.kurifilter-shorturi: "0.5+sin(sin(0.5))" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0.5))" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0.5))" ) session switching to "0.5+sin(sin(0.5))" QObject::connect: No such signal KActivities::Consumer::serviceStatusChanged(KActivities::Consumer::ServiceStatus) QObject::connect: (receiver name: 'Activities') org.kde.kurifilter-shorturi: "0.5+sin(sin(0.5))=" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0.5))=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0.5))=" ) session switching to "0.5+sin(sin(0.5))=" org.kde.kurifilter-shorturi: "0.5+sin(sin(0.5)=" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0.5)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0.5)=" ) session switching to "0.5+sin(sin(0.5)=" org.kde.kurifilter-shorturi: "0.5+sin(sin(0.)=" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0.)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0.)=" ) session switching to "0.5+sin(sin(0.)=" org.kde.kurifilter-shorturi: "0.5+sin(sin(0)=" org.kde.kurifilter-shorturi: path = "0.5+sin(sin(0)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin(0)=" ) session switching to "0.5+sin(sin(0)=" org.kde.kurifilter-shorturi: "0.5+sin(sin()=" org.kde.kurifilter-shorturi: path = "0.5+sin(sin()=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin()=" ) session switching to "0.5+sin(sin()=" org.kde.kurifilter-shorturi: "0.5+sin(sin)=" org.kde.kurifilter-shorturi: path = "0.5+sin(sin)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(sin)=" ) session switching to "0.5+sin(sin)=" org.kde.kurifilter-shorturi: "0.5+sin(si)=" org.kde.kurifilter-shorturi: path = "0.5+sin(si)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(si)=" ) session switching to "0.5+sin(si)=" org.kde.kurifilter-shorturi: "0.5+sin(s)=" org.kde.kurifilter-shorturi: path = "0.5+sin(s)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(s)=" ) session switching to "0.5+sin(s)=" org.kde.kurifilter-shorturi: "0.5+sin(s0)=" org.kde.kurifilter-shorturi: path = "0.5+sin(s0)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(s0)=" ) session switching to "0.5+sin(s0)=" org.kde.kurifilter-shorturi: "0.5+sin(s)=" org.kde.kurifilter-shorturi: path = "0.5+sin(s)=" isLocalFullPath= false exists= false url= QUrl( "0.5+sin(s)=" ) session switching to "0.5+sin(s)=" Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffccd6b700 (LWP 32114)] 0x00007fffcff5b25a in mdb_txn_commit () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0 (gdb) bt #0 0x00007fffcff5b25a in mdb_txn_commit () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0 #1 0x00007fffcff5b278 in mdb_txn_commit () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0 #2 0x00007fffcff5b278 in mdb_txn_commit () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0 #3 0x00007fffcff5b278 in mdb_txn_commit () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0 #4 0x00007fffcff5b278 in mdb_txn_commit () from /usr/lib/x86_64-linux-gnu/liblmdb.so.0 #5 0x00007fffd016f496 in Baloo::Database::open(Baloo::Database::OpenMode) () from /usr/lib/x86_64-linux-gnu/libKF5BalooEngine.so.5 #6 0x00007fffd05c9208 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5 #7 0x00007fffd05bae39 in Baloo::Query::exec() () from /usr/lib/x86_64-linux-gnu/libKF5Baloo.so.5 #8 0x00007fffd07daf3f in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so #9 0x00007fffd07db8b3 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/krunner_baloosearchrunner.so #10 0x00007fffd946e010 in Plasma::AbstractRunner::performMatch(Plasma::RunnerContext&) () from /usr/lib/x86_64-linux-gnu/libKF5Runner.so.5 #11 0x00007fffd92518a0 in ThreadWeaver::Executor::run(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5 #12 0x00007fffd92504e0 in ThreadWeaver::Job::execute(QSharedPointer<ThreadWeaver::JobInterface> const&, ThreadWeaver::Thread*) () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5 #13 0x00007fffd924ff8a in ThreadWeaver::Thread::run() () from /usr/lib/x86_64-linux-gnu/libKF5ThreadWeaver.so.5 #14 0x00007ffff4ffc25e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff2b820a4 in start_thread (arg=0x7fffccd6b700) at pthread_create.c:309 #16 0x00007ffff491c06d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111 (gdb) quit
Baloo package (libkf5baloo5, baloo-kf5) version is at: 5.15.0+-1
*** This bug has been marked as a duplicate of bug 356298 ***