<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<!DOCTYPE bugzilla SYSTEM "https://bugs.kde.org/page.cgi?id=bugzilla.dtd">

<bugzilla version="5.0.6"
          urlbase="https://bugs.kde.org/"
          
          maintainer="sysadmin@kde.org"
>

    <bug>
          <bug_id>349717</bug_id>
          
          <creation_ts>2015-06-29 15:14:38 +0000</creation_ts>
          <short_desc>Plasma crashed while clicking meta+tab by error</short_desc>
          <delta_ts>2015-07-01 11:28:32 +0000</delta_ts>
          <reporter_accessible>1</reporter_accessible>
          <cclist_accessible>1</cclist_accessible>
          <classification_id>4</classification_id>
          <classification>Plasma</classification>
          <product>plasmashell</product>
          <component>Activity Switcher sidebar</component>
          <version>5.3.1</version>
          <rep_platform>Other</rep_platform>
          <op_sys>Linux</op_sys>
          <bug_status>RESOLVED</bug_status>
          <resolution>DUPLICATE</resolution>
          <dup_id>345660</dup_id>
          
          <bug_file_loc></bug_file_loc>
          <status_whiteboard></status_whiteboard>
          <keywords></keywords>
          <priority>NOR</priority>
          <bug_severity>normal</bug_severity>
          <target_milestone>1.0</target_milestone>
          
          
          <everconfirmed>0</everconfirmed>
          <reporter name="Alex">alex</reporter>
          <assigned_to name="Ivan Čukić">ivan.cukic</assigned_to>
          <cc>kde</cc>
    
    <cc>plasma-bugs-null</cc>
          
          <cf_commitlink></cf_commitlink>
          <cf_versionfixedin></cf_versionfixedin>
          <cf_sentryurl></cf_sentryurl>
          <votes>0</votes>

      

      

      

          <comment_sort_order>oldest_to_newest</comment_sort_order>  
          <long_desc isprivate="0" >
    <commentid>1529036</commentid>
    <comment_count>0</comment_count>
    <who name="Alex">alex</who>
    <bug_when>2015-06-29 15:14:38 +0000</bug_when>
    <thetext>I pressed meta+tab by error and I can&apos;t access all my windows: they are open &quot;somewhere&quot; but I can&apos;t see them and I don&apos;t know how to reach them.

I have no virtual desktop configureds and no activities, just my two monitors on a single destop.

Using Kubuntu updated packages from repository backports

I had to trim down the bug report because it was &gt; 64K and even drkonqi crashed 

Reproducible: Always

Steps to Reproduce:
1. press meta-tab 3 times
2. get an empty desktop and drkonqi handling the crash
3.



Application: plasmashell (5.3.1)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-21-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library &quot;/lib/x86_64-linux-gnu/libthread_db.so.1&quot;.
[Current thread is 1 (Thread 0x7fdf785ec7c0 (LWP 4040))]

Thread 64 (Thread 0x7fdf6225f700 (LWP 4043)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf758c1b72 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007fdf758c364f in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007fdf64e33099 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so

Thread 63 (Thread 0x7fdf5be97700 (LWP 4046)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1fb8 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 62 (Thread 0x7fdf512cf700 (LWP 4065)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 61 (Thread 0x7fdf4ab47700 (LWP 4075)):
#0  0x00007fdf73107470 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 60 (Thread 0x7fdf49a76700 (LWP 4077)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1a16 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 59 (Thread 0x7fdf48975700 (LWP 4078)):
#0  0x00007ffd93832d13 in clock_gettime ()
#1  0x00007fdf7312538d in clock_gettime () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fdf73849cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdf73a28639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf73a28ba5 in QTimerInfoList::timerWait(timespec&amp;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf73a2a03e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf6f9e13fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 58 (Thread 0x7fdf3b7ff700 (LWP 4079)):
#0  0x00007fdf73a2a479 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fdf6f9e18c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 57 (Thread 0x7fdf3a76e700 (LWP 4080)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 56 (Thread 0x7fdf3966d700 (LWP 4081)):
#0  0x00007fdf7378b9ca in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fdf73a2a5a9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf6f9e18c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 55 (Thread 0x7fdf27fff700 (LWP 4082)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e0df0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 54 (Thread 0x7fdf26ddf700 (LWP 4083)):
#0  0x00007fdf6fa267a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1fd6 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 53 (Thread 0x7fdf25b0f700 (LWP 4085)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 52 (Thread 0x7fdf24a0e700 (LWP 4086)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 51 (Thread 0x7fdf177ff700 (LWP 4087)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf7770d644 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2  0x00007fdf7770d689 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 50 (Thread 0x7fdf16ff6700 (LWP 4088)):
#0  0x00007fdf73a2a250 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fdf6f9e18c1 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 49 (Thread 0x7fde8bfff700 (LWP 4092)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1e7e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 48 (Thread 0x7fde8ab67700 (LWP 4094)):
#0  0x00007fdf6f9deee8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e17ef in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 47 (Thread 0x7fde8a065700 (LWP 4095)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 46 (Thread 0x7fde7bfff700 (LWP 4098)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e12d7 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 45 (Thread 0x7fde7affe700 (LWP 4099)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1641 in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e37 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 44 (Thread 0x7fde7a7fd700 (LWP 4101)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 43 (Thread 0x7fde6b7f5700 (LWP 4107)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 42 (Thread 0x7fde692e8700 (LWP 4117)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 41 (Thread 0x7fde61aaf700 (LWP 4543)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 40 (Thread 0x7fde60aae700 (LWP 4545)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 39 (Thread 0x7fde577ff700 (LWP 4551)):
#0  0x00007ffd93832d13 in clock_gettime ()
#1  0x00007fdf7312538d in clock_gettime () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fdf73849cb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdf73a28639 in QTimerInfoList::updateCurrentTime() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf73a28ba5 in QTimerInfoList::timerWait(timespec&amp;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf73a2a03e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf6f9e13fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#13 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#15 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 38 (Thread 0x7fde567fe700 (LWP 4563)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e0df0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 37 (Thread 0x7fde557fd700 (LWP 4565)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1409 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 36 (Thread 0x7fde43fff700 (LWP 4566)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 35 (Thread 0x7fde42ffe700 (LWP 4568)):
#0  0x00007fdf7378be0f in QMutex::unlock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fdf73a2a1ed in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf6f9e13fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 34 (Thread 0x7fde41ffd700 (LWP 4573)):
#0  0x00007fdf7310b8e1 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 33 (Thread 0x7fde40ffc700 (LWP 4578)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e0df0 in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 32 (Thread 0x7fde337ff700 (LWP 4584)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 31 (Thread 0x7fde327fe700 (LWP 4586)):
#0  0x00007fdf6fa267a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e13f0 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 30 (Thread 0x7fde317fd700 (LWP 4589)):
#0  0x00007fdf6f9e0dfb in g_main_context_acquire () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1d75 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 29 (Thread 0x7fde1ffff700 (LWP 4612)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 28 (Thread 0x7fde17b77700 (LWP 4716)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fde1dec7cf7 in KCupsConnection::run() () from /usr/lib/x86_64-linux-gnu/libkcupslib.so
#10 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 27 (Thread 0x7fde16bef700 (LWP 4753)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1fb8 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#6  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 26 (Thread 0x7fde15bee700 (LWP 4756)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e18cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 25 (Thread 0x7fde149c7700 (LWP 4800)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 24 (Thread 0x7fde077ff700 (LWP 4801)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7fddf97bf700 (LWP 5370)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7fddf8d77700 (LWP 7909)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7fddf37ff700 (LWP 7910)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7fddf2ffe700 (LWP 8297)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7fddf27fd700 (LWP 8298)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7fddf16f8700 (LWP 11286)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7fddc87dc700 (LWP 9616)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7fddcb1ef700 (LWP 15926)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7fddca9ee700 (LWP 17056)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78302fab in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf783033a0 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7fddc99af700 (LWP 31181)):
#0  0x00007fdf6fa267a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e18b9 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7fddc7e77700 (LWP 31182)):
#0  0x00007fdf6fa267a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1ddb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7fddc6e76700 (LWP 31184)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf78290b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7fddc6675700 (LWP 31185)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e18cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7fddc542f700 (LWP 31186)):
#0  0x00007fdf7310749d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6bf59f45 in ?? () from /usr/lib/nvidia-346/tls/libnvidia-tls.so.346.59
#2  0x00007fdf6fa252f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e196c in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#10 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7fddc432e700 (LWP 31187)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf78290b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7fddc39cd700 (LWP 31188)):
[KCrash Handler]
#6  0x0000000000000000 in ?? ()
#7  0x00007fdf77862636 in destroy (this=0x7fde08346310) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:151
#8  deref (d=0x7fde08346310) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:469
#9  deref (this=&lt;optimized out&gt;) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:464
#10 ~QSharedPointer (this=0x7fde08344740, __in_chrg=&lt;optimized out&gt;) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qsharedpointer_impl.h:305
#11 ~ManagedTextureNode (this=0x7fde083445c0, __in_chrg=&lt;optimized out&gt;) at /usr/include/KF5/KDeclarative/quickaddons/managedtexturenode.h:43
#12 ManagedTextureNode::~ManagedTextureNode (this=0x7fde083445c0, __in_chrg=&lt;optimized out&gt;) at /usr/include/KF5/KDeclarative/quickaddons/managedtexturenode.h:43
#13 0x00007fdf782d1c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007fdf782d1c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#15 0x00007fdf782d1c79 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#16 0x00007fdf782d1c13 in QSGNode::destroy() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007fdf782d1c47 in QSGNode::~QSGNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#18 0x00007fdf782d1db9 in QSGTransformNode::~QSGTransformNode() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#19 0x00007fdf7832f3c4 in QQuickWindowPrivate::cleanupNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#20 0x00007fdf7832f45e in QQuickWindowPrivate::updateDirtyNodes() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#21 0x00007fdf7832fd80 in QQuickWindowPrivate::syncSceneGraph() () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#22 0x00007fdf783011dd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#23 0x00007fdf783020a1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#24 0x00007fdf78303360 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#25 0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#27 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7fddc310f700 (LWP 31189)):
#0  0x00007fdf6fa26780 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e18cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7fddc1e87700 (LWP 31190)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7fddc0d86700 (LWP 31192)):
#0  0x00007fdf6fa267a4 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e1d6d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf78290b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7fddc0585700 (LWP 31193)):
#0  0x00007fdf7378b9ca in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007fdf73a2a1db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf6f9e13fd in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1de8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7fddbf2ff700 (LWP 31194)):
#0  0x00007fdf7310b8dd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fdf6f9e1ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf75531f65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7fddbe1fe700 (LWP 31195)):
#0  0x00007fdf6fa26789 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fdf6f9e18cc in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fdf6f9e1e60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fdf73a2ac6c in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007fdf7378eb44 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fdf78290b56 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007fdf73793b0e in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fdf7298f6aa in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fdf73116eed in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7fdf785ec7c0 (LWP 4040)):
#0  0x00007fdf72994da0 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x00007fdf73794c6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007fdf78304c48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#3  0x00007fdf78307a8b in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#4  0x00007fdf7830830a in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007fdf73d2c7b5 in QWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#6  0x00007fdf78339dd3 in QQuickWindow::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007fdf77849f9b in PlasmaQuick::Dialog::event (this=0x307dce0, event=0x7ffd93815510) at ../../../src/plasmaquick/dialog.cpp:1154
#8  0x00007fdf742e3b2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007fdf742e9000 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007fdf739d1c2b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fdf73d24e86 in QGuiApplicationPrivate::processExposeEvent(QWindowSystemInterfacePrivate::ExposeEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007fdf73d25bbd in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007fdf73d0a34f in QWindowSystemInterface::sendWindowSystemEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#14 0x00007fdf64e5d590 in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so
#15 0x00007fdf6f9e1c3d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007fdf6f9e1f20 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007fdf6f9e1fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fdf73a2ac57 in QEventDispatcherGlib::processEvents(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007fdf739cf3e2 in QEventLoop::exec(QFlags&lt;QEventLoop::ProcessEventsFlag&gt;) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007fdf739d702c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x0000000000430253 in main (argc=2, argv=&lt;optimized out&gt;) at ../../shell/main.cpp:154

Possible duplicates by query: bug 348268, bug 347304, bug 346589, bug 346353, bug 345660.

Report to https://bugs.kde.org/</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1529492</commentid>
    <comment_count>1</comment_count>
    <who name="David Edmundson">kde</who>
    <bug_when>2015-07-01 11:25:20 +0000</bug_when>
    <thetext>Can you confirm that Plasma version number?

*** This bug has been marked as a duplicate of bug 345660 ***</thetext>
  </long_desc><long_desc isprivate="0" >
    <commentid>1529494</commentid>
    <comment_count>2</comment_count>
    <who name="Alex">alex</who>
    <bug_when>2015-07-01 11:28:32 +0000</bug_when>
    <thetext>plasma-workspace     4:5.3.1-0ubuntu1~ubuntu15.04~ppa1</thetext>
  </long_desc>
      
      

    </bug>

</bugzilla>