On Thu, Dec 29, 2016 at 7:25 AM, Luigi Toscano <luigi.tosc...@tiscali.it> wrote: > > When the backtrace starts, do you get the prompt of (gdb) again?
Yes. I get the prompt of (gdb) again. > Try to type: > > (gdb) thread apply all backtrace > > and see if it gives you more output. The output looks pretty much the same even with this command. % gdb konsole ... Reading symbols from konsole...Reading symbols from /usr/lib/debug/.build-id/2b/559c27a0259b9f5254ac6482a73ecd5f0fce6a.debug...done. done. (gdb) set args --version (gdb) thread apply all backtrace (gdb) r Starting program: /usr/bin/konsole --version [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffe414b700 (LWP 9523)] [New Thread 0x7fffe2268700 (LWP 9524)] konsole 16.08.2 Thread 3 "QDBusConnection" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7fffe2268700 (LWP 9524)] 0x00007ffff44b03ef in QObject::disconnect (sender=0x5555557d7d90, signal=signal@entry=0x0, receiver=receiver@entry=0x7fffd40030f0, method=method@entry=0x0) at kernel/qobject.cpp:2956 2956 kernel/qobject.cpp: No such file or directory. (gdb) bt #0 0x00007ffff44b03ef in QObject::disconnect (sender=0x5555557d7d90, signal=signal@entry=0x0, receiver=receiver@entry=0x7fffd40030f0, method=method@entry=0x0) at kernel/qobject.cpp:2956 #1 0x00007ffff7edfd50 in QObject::disconnect (member=0x0, receiver=0x7fffd40030f0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:336 #2 QDBusConnectionPrivate::closeConnection (this=this@entry=0x7fffd40030f0) at qdbusintegrator.cpp:1145 #3 0x00007ffff7ecc7e2 in QDBusConnectionManager::run ( this=0x7ffff7f41d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:188 #4 0x00007ffff42b0da8 in QThreadPrivate::start ( arg=0x7ffff7f41d60 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368 #5 0x00007ffff0b16464 in start_thread (arg=0x7fffe2268700) at pthread_create.c:333 #6 0x00007ffff78dd9df in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105 > Just to be sure: did you restart after the last updates (not only kernel, also > Qt)? I did not do that before. But now I rebooted the computer and the backtrace above is what I get after the reboot. thanks raju -- Kamaraju S Kusumanchi | http://raju.shoutwiki.com/wiki/Blog