hi ludovio, firstly sorry for that, i was thinking that after adding the ppa repositories i'm installing from them , but did not notice that i was downloading from ubuntu universe repositories anyway i've disabled the universe repositories , and now i've downloaded the qutecom packages from ppa ,but i can confirm that i'm still having the same issue the outputs you wanted after setting OWLOGGER_DEFAULT=debug qutecom : (debug) 11:31:33 [Common] int main(int, char**): Started (debug) 11:31:33 [File] virtual bool FileReader::open(): loading /usr/share/qutecom//config/config.xml (debug) 11:31:33 [File] virtual bool FileReader::open(): loading /home/muhammad/.qutecom/config.xml (debug) 11:31:33 [Purple] void* PurpleMainEventLoop(void*): Starting gMainLoop (debug) 11:31:35 [Purple] virtual PurpleIMFactory::~PurpleIMFactory(): Stopping gMainLoop Segmentation fault this line also appears in syslog file when it segfault : kernel: [ 4911.734270] qutecom[6622]: segfault at 0 ip 00007fe2f6b43632 sp 00007fff70099410 error 4 in libQtCore.so.4.5.2[7fe2f6a10000+22d000] from gnu debugger output was as follows : gdb qutecom GNU gdb (GDB) 7.0-ubuntu Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /usr/bin/qutecom...Reading symbols from /usr/lib/debug/usr/bin/qutecom...done. (no debugging symbols found)...done. (gdb) set args -style plastique (gdb) run Starting program: /usr/bin/qutecom -style plastique [Thread debugging using libthread_db enabled] [New Thread 0x7fffeae87910 (LWP 6687)] [New Thread 0x7fffea686910 (LWP 6688)] [New Thread 0x7fffe925b910 (LWP 6689)] Program received signal SIGSEGV, Segmentation fault. 0x00007ffff3a82632 in ?? () from /usr/lib/libQtCore.so.4 (gdb) thread apply all bt Thread 4 (Thread 0x7fffe925b910 (LWP 6689)): #0 0x00007ffff06f4373 in poll () from /lib/libc.so.6 #1 0x00007ffff7b5736c in ?? () from /lib/libglib-2.0.so.0 #2 0x00007ffff7b579e5 in g_main_loop_run () from /lib/libglib-2.0.so.0 #3 0x0000000000712b4a in PurpleMainEventLoop (data=) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/libs/imwrapper/src/purple/PurpleIMFactory.cpp:163 #4 0x00007ffff7b7cb34 in ?? () from /lib/libglib-2.0.so.0 #5 0x00007ffff1cf4a04 in start_thread () from /lib/libpthread.so.0 #6 0x00007ffff07007bd in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 3 (Thread 0x7fffea686910 (LWP 6688)): #0 0x00007ffff06f93c2 in select () from /lib/libc.so.6 #1 0x00007ffff3d8d827 in owsl_monitor_loop (dummy=) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wifo/owsl/src/core/owsl_monitor.c:205 #2 0x00007ffff1cf4a04 in start_thread () from /lib/libpthread.so.0 #3 0x00007ffff07007bd in clone () from /lib/libc.so.6 #4 0x0000000000000000 in ?? () Thread 2 (Thread 0x7fffeae87910 (LWP 6687)): ---Type to continue, or q to quit--- #0 0x00007ffff1cf95a9 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/libpthread.so.0 #1 0x00007ffff3f998b6 in owqueue_check_wait_condition (queue=0xc5e820, blocking_mode=, mutex=, needed_condition=, test_negative_condition=0x7ffff3f99770 , force_wait=0) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wifo/owbase/src/owqueue.c:366 #2 0x00007ffff3f9a3c3 in owqueue_transaction_read (queue=0xc5e820, buffer=0x7fffeae87070, size=16, info=, mode=0) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wifo/owbase/src/owqueue.c:696 #3 owqueue_read (queue=0xc5e820, buffer=0x7fffeae87070, size=16, info=, mode=0) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wifo/owbase/src/owqueue.c:1022 #4 0x00007ffff3d8cfdb in owsl_asynchronous_loop (dummy=) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wifo/owsl/src/core/owsl_asynchronous.c:126 #5 0x00007ffff1cf4a04 in start_thread () from /lib/libpthread.so.0 #6 0x00007ffff07007bd in clone () from /lib/libc.so.6 #7 0x0000000000000000 in ?? () Thread 1 (Thread 0x7ffff7fbe770 (LWP 6684)): #0 0x00007ffff3a82632 in ?? () from /usr/lib/libQtCore.so.4 #1 0x00007ffff3a860c9 in QLibrary::setFileName(QString const&) () ---Type to continue, or q to quit--- from /usr/lib/libQtCore.so.4 #2 0x00007ffff23c9704 in ?? () from /usr/lib/libQtDBus.so.4 #3 0x00007ffff238248b in QDBusConnection::connectToBus(QDBusConnection::BusType, QString const&) () from /usr/lib/libQtDBus.so.4 #4 0x00007ffff2383eef in ?? () from /usr/lib/libQtDBus.so.4 #5 0x00007ffff2384029 in QDBusConnection::systemBus() () from /usr/lib/libQtDBus.so.4 #6 0x00000000007a2914 in NetworkObserver (this=0x7fffe40008b0) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wengophone/src/model/network/NetworkObserver.cpp:59 #7 0x00000000007a2d08 in NetworkObserver::getInstance () at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wengophone/src/model/network/NetworkObserver.cpp:81 #8 0x00000000007aa7eb in ~SipAccount (this=0xc55980, __in_chrg=) at /build/buildd/qutecom-2.2~rc3.hg396~dfsg1/wengophone/src/model/account/SipAccount.cpp:109 #9 0x00007ffff0659c12 in exit () from /lib/libc.so.6 #10 0x00007ffff063fac4 in __libc_start_main () from /lib/libc.so.6 #11 0x00000000005a8be9 in _start () at ../sysdeps/x86_64/elf/start.S:113 On Fri, Oct 30, 2009 at 11:01 PM, Ludovico Cavedon <