Bug 349842

Summary:	Konversation causes plasmashell segfault
Product:	[Plasma] plasmashell	Reporter:	Mark <bugs>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	bhush94, kjslag, plasma-bugs
Priority:	NOR	Keywords:	drkonqi
Version:	5.3.2
Target Milestone:	1.0
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Mark 2015-07-02 23:07:39 UTC

Application: plasmashell (5.3.2)

Qt Version: 5.4.2
Operating System: Linux 4.0.7-2-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:

Running Konversation causes a plasma shell segfault, initially it may run fine for 10 mins or so but then repeatedly segfaults.
This is my first bug report and I have rebuilt the relevant packages to include debugging symbols to the best of my ability although some appear to be still missing ??!!??.  
Please advise of any further steps I can take to provide more info.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f072bad4800 (LWP 2793))]

Thread 22 (Thread 0x7f0714ee9700 (LWP 2795)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f072a4329f2 in poll (__timeout=-1, __nfds=1, __fds=0x7f0714ee8cc0) at /usr/include/bits/poll2.h:46
#2  _xcb_conn_wait (c=c@entry=0x9a2120, cond=cond@entry=0x9a2160, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:459
#3  0x00007f072a434577 in xcb_wait_for_event (c=0x9a2120) at xcb_in.c:623
#4  0x00007f0716a0d599 in ?? () from /usr/lib/qt/plugins/platforms/libqxcb.so
#5  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#6  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#7  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 21 (Thread 0x7f070e975700 (LWP 2797)):
#0  0x00007f072180dcf4 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f07217c8639 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8bb0 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 20 (Thread 0x7f070322b700 (LWP 2798)):
#0  0x00007f072180dcd9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f07217c83c1 in g_main_context_query () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8b87 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 19 (Thread 0x7f07011d7700 (LWP 2802)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f07217c8c0c in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 18 (Thread 0x7f06f3fff700 (LWP 2803)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f07217c8c0c in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 17 (Thread 0x7f06f2ffe700 (LWP 2804)):
#0  0x00007f072550ff1d in read () from /usr/lib/libc.so.6
#1  0x00007f072180c910 in g_wakeup_acknowledge () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c86f4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8bb0 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 16 (Thread 0x7f06f1f9d700 (LWP 2805)):
#0  0x00007f072180dcd9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f07217c864c in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8bb0 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 15 (Thread 0x7f06f0e9c700 (LWP 2806)):
#0  0x00007f072550ff1d in read () from /usr/lib/libc.so.6
#1  0x00007f072180c910 in g_wakeup_acknowledge () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c86f4 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8bb0 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 14 (Thread 0x7f06e37ff700 (LWP 2807)):
#0  0x00007f072180dcd9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f07217c81a9 in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8b3b in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 13 (Thread 0x7f06e27fe700 (LWP 2808)):
#0  0x00007f0725e2f552 in ?? () from /usr/lib/libQt5Core.so.5
#1  0x00007f07217c8641 in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8bb0 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 12 (Thread 0x7f06e13c8700 (LWP 2809)):
#0  0x00007f072b9db3d6 in __tls_get_addr () from /lib64/ld-linux-x86-64.so.2
#1  0x00007f0725bf7fd2 in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007f0725e2f27a in ?? () from /usr/lib/libQt5Core.so.5
#3  0x00007f07217c819d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07217c8b3b in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#5  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#6  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#8  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#9  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#10 0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#11 0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#12 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 11 (Thread 0x7f06cffff700 (LWP 2810)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f07217c8c0c in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 10 (Thread 0x7f06ceffe700 (LWP 2811)):
#0  0x00007f072180dcd9 in g_mutex_lock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f07217c864c in g_main_context_check () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8bb0 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#4  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#7  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#8  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#9  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#10 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 9 (Thread 0x7f06cdffd700 (LWP 2812)):
#0  0x00007f07217c877b in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#1  0x00007f07217c8c70 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 8 (Thread 0x7f06ccffc700 (LWP 2813)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f07217c8c0c in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 7 (Thread 0x7f06bf7ff700 (LWP 2814)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f07217c8c0c in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 6 (Thread 0x7f06be7fe700 (LWP 2815)):
#0  0x00007f0725bf12ba in QMutex::lock() () from /usr/lib/libQt5Core.so.5
#1  0x00007f0725e2f29f in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007f07217c819d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8b3b in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 5 (Thread 0x7f06bd7fd700 (LWP 2816)):
#0  0x00007f0724b1096f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
#1  0x00007f072b2634a4 in ?? () from /usr/lib/libQt5Script.so.5
#2  0x00007f072b2634e9 in ?? () from /usr/lib/libQt5Script.so.5
#3  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#4  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 4 (Thread 0x7f06bcffc700 (LWP 2817)):
#0  0x00007f0725513e8d in poll () from /usr/lib/libc.so.6
#1  0x00007f07217c8c0c in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#2  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#3  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#4  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#5  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#6  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#7  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#9  0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 3 (Thread 0x7f062a6ba700 (LWP 2818)):
#0  0x00007f0725bf7fd9 in ?? () from /usr/lib/libQt5Core.so.5
#1  0x00007f0725e2f27a in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007f07217c819d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8b3b in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f0728ece0c5 in ?? () from /usr/lib/libQt5Qml.so.5
#9  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 2 (Thread 0x7f0628dce700 (LWP 2819)):
#0  0x00007f0725bf12ba in QMutex::lock() () from /usr/lib/libQt5Core.so.5
#1  0x00007f0725e2f29f in ?? () from /usr/lib/libQt5Core.so.5
#2  0x00007f07217c819d in g_main_context_prepare () from /usr/lib/libglib-2.0.so.0
#3  0x00007f07217c8b3b in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#4  0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#5  0x00007f0725e2fd1b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#6  0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#7  0x00007f0725bf41a4 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#8  0x00007f072953ca26 in ?? () from /usr/lib/libQt5Quick.so.5
#9  0x00007f0725bf908e in ?? () from /usr/lib/libQt5Core.so.5
#10 0x00007f0724b0b354 in start_thread () from /usr/lib/libpthread.so.0
#11 0x00007f072551cbfd in clone () from /usr/lib/libc.so.6

Thread 1 (Thread 0x7f072bad4800 (LWP 2793)):
[KCrash Handler]
#5  brw_meta_fast_clear (brw=brw@entry=0x2372da8, fb=fb@entry=0x32c3da0, buffers=buffers@entry=34, partial_clear=partial_clear@entry=false) at brw_meta_fast_clear.c:446
#6  0x00007f07076750cc in brw_clear (ctx=0x2372da8, mask=34) at brw_clear.c:246
#7  0x00007f072956ed4a in QSGBatchRenderer::Renderer::renderBatches() () from /usr/lib/libQt5Quick.so.5
#8  0x00007f072957350a in QSGBatchRenderer::Renderer::render() () from /usr/lib/libQt5Quick.so.5
#9  0x00007f072957e15c in QSGRenderer::renderScene(QSGBindable const&) () from /usr/lib/libQt5Quick.so.5
#10 0x00007f072957e5db in QSGRenderer::renderScene(unsigned int) () from /usr/lib/libQt5Quick.so.5
#11 0x00007f072958ccde in QSGRenderContext::renderNextFrame(QSGRenderer*, unsigned int) () from /usr/lib/libQt5Quick.so.5
#12 0x00007f07295d695c in QQuickWindowPrivate::renderSceneGraph(QSize const&) () from /usr/lib/libQt5Quick.so.5
#13 0x00007f07295a72bc in ?? () from /usr/lib/libQt5Quick.so.5
#14 0x00007f07295a7de1 in ?? () from /usr/lib/libQt5Quick.so.5
#15 0x00007f072712f62c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#16 0x00007f0727134d10 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQt5Widgets.so.5
#17 0x00007f0725dd857b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/libQt5Core.so.5
#18 0x00007f0725e2eb1d in QTimerInfoList::activateTimers() () from /usr/lib/libQt5Core.so.5
#19 0x00007f0725e2f059 in ?? () from /usr/lib/libQt5Core.so.5
#20 0x00007f07217c8a17 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#21 0x00007f07217c8c70 in g_main_context_iterate.isra () from /usr/lib/libglib-2.0.so.0
#22 0x00007f07217c8d1c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#23 0x00007f0725e2fcff in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#24 0x00007f0725dd5ffa in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQt5Core.so.5
#25 0x00007f0725ddda4c in QCoreApplication::exec() () from /usr/lib/libQt5Core.so.5
#26 0x0000000000430538 in main (argc=4, argv=<optimized out>) at /home/mark/Build/debug/plasma-workspace/src/plasma-workspace-5.3.2/shell/main.cpp:154

Possible duplicates by query: bug 349519.

Reported using DrKonqi

Comment 1 David Edmundson 2015-07-02 23:17:17 UTC

I'd like more info on why you think konversation is involved. The backtrace shows us crashing in the graphic driver, redrawing one of the plasma windows.

Might be a usesful clue to hunting this down, might be just coincidence.

Could you also try upgrading/downgrading Mesa to see if that fixes the problem?

*** This bug has been marked as a duplicate of bug 349519 ***

Comment 2 Mark 2015-07-02 23:33:23 UTC

I think konversation is involved as the system runs fine until konversation is launched.  Thereafter the errors occur, regardless of whether konversation is in use or closed to the task bar.  Completely quitting konversation stops the errors. 

I have tried using quassel-monolithic as a work around which seems not to provoke the segfaults, although for what ever reason "tab to complete" on Nicks doesn't work.

I will test your suggestions regarding the graphics driver tomorrow as its 00:33 here in the UK
regards
Mark

Comment 3 David Edmundson 2015-07-03 07:22:15 UTC

*** Bug 349849 has been marked as a duplicate of this bug. ***