Bug 297940

Summary: rekonq crashes on URL entry
Product: [Unmaintained] rekonq Reporter: jim fosse <alfheimlinux>
Component: generalAssignee: Andrea Diamantini <adjam7>
Status: RESOLVED UNMAINTAINED    
Severity: crash CC: nienhueser
Priority: NOR    
Version First Reported In: 0.9.1   
Target Milestone: ---   
Platform: Ubuntu   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description jim fosse 2012-04-12 01:51:20 UTC 
Application: rekonq (0.9.1)
KDE Platform Version: 4.8.2 (4.8.2)
Qt Version: 4.8.1
Operating System: Linux 3.2.0-23-generic x86_64
Distribution: Ubuntu precise (development branch)

-- Information about the crash:
- What I was doing when the application crashed: typing in a url in the address bar.  This happens regularly but not every time.  Most of the time it is the first url entered. Occasionally on a later url entry.

The crash can be reproduced some of the time.

-- Backtrace:
Application: rekonq (rekonq), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
[Current thread is 1 (Thread 0x7fc718607780 (LWP 5890))]

Thread 17 (Thread 0x7fc702943700 (LWP 5891)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc716e97dec in WTF::TCMalloc_PageHeap::scavengerThread (this=0x7fc717860de0) at wtf/FastMalloc.cpp:2495
#2  0x00007fc716e97f19 in WTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at wtf/FastMalloc.cpp:1618
#3  0x00007fc712052e9a in start_thread (arg=0x7fc702943700) at pthread_create.c:308
#4  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 16 (Thread 0x7fc701e2e700 (LWP 5892)):
#0  0x00007fc712054f69 in __pthread_mutex_lock (mutex=0x7fc6fc000a60) at pthread_mutex_lock.c:92
#1  0x00007fc710730571 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f4729 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7106f4f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc6fc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc701e2de00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1681cc0) at thread/qthread_unix.cpp:298
#10 0x00007fc712052e9a in start_thread (arg=0x7fc701e2e700) at pthread_create.c:308
#11 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 15 (Thread 0x7fc700fa2700 (LWP 5893)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc717a09222 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007fc717a09259 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007fc712052e9a in start_thread (arg=0x7fc700fa2700) at pthread_create.c:308
#4  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 14 (Thread 0x7fc6fb9e2700 (LWP 5894)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc7128de4db in wait (time=18446744073709551615, this=0x1397cb0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x1397e30, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fc71492a0eb in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1397b60, th=0x16ab120) at ../../../threadweaver/Weaver/WeaverImpl.cpp:365
#4  0x00007fc71492c9db in ThreadWeaver::WorkingHardState::applyForWork (this=0x1397ec0, th=0x16ab120) at ../../../threadweaver/Weaver/WorkingHardState.cpp:71
#5  0x00007fc71492b84f in ThreadWeaver::ThreadRunHelper::run (this=0x7fc6fb9e1e20, parent=0x1397b60, th=0x16ab120) at ../../../threadweaver/Weaver/Thread.cpp:87
#6  0x00007fc71492b8db in ThreadWeaver::Thread::run (this=0x16ab120) at ../../../threadweaver/Weaver/Thread.cpp:142
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x16ab120) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc6fb9e2700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 13 (Thread 0x7fc6f9007700 (LWP 5896)):
#0  0x00007fc7106f462f in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc7106f4f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc6ac0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6f9006dd0, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fc7129bb9ff in QInotifyFileSystemWatcherEngine::run (this=0x18c09c0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x18c09c0) at thread/qthread_unix.cpp:298
#9  0x00007fc712052e9a in start_thread (arg=0x7fc6f9007700) at pthread_create.c:308
#10 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 12 (Thread 0x7fc6f8806700 (LWP 5901)):
#0  __pthread_mutex_lock (mutex=0x7fc6b0000a60) at pthread_mutex_lock.c:47
#1  0x00007fc710730571 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f4fdb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc6b00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#5  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6f8805e00, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#8  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x19f43c0) at thread/qthread_unix.cpp:298
#9  0x00007fc712052e9a in start_thread (arg=0x7fc6f8806700) at pthread_create.c:308
#10 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 11 (Thread 0x7fc6abfff700 (LWP 5902)):
#0  0x00007fc712054f69 in __pthread_mutex_lock (mutex=0x7fc6a0000a60) at pthread_mutex_lock.c:92
#1  0x00007fc710730571 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f4b46 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7106f5060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc6a00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6abffee00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1b59370) at thread/qthread_unix.cpp:298
#10 0x00007fc712052e9a in start_thread (arg=0x7fc6abfff700) at pthread_create.c:308
#11 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 10 (Thread 0x7fc6ab7fe700 (LWP 5903)):
#0  0x00007fc71205605d in __pthread_mutex_unlock_usercnt (mutex=<optimized out>, decr=<optimized out>) at pthread_mutex_unlock.c:52
#1  __pthread_mutex_unlock (mutex=0x7fc69c000a60) at pthread_mutex_unlock.c:290
#2  0x00007fc7107305a1 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7106f4713 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc7106f4f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc69c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#7  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#8  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6ab7fde00, flags=...) at kernel/qeventloop.cpp:204
#9  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#10 0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1b5e540) at thread/qthread_unix.cpp:298
#11 0x00007fc712052e9a in start_thread (arg=0x7fc6ab7fe700) at pthread_create.c:308
#12 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#13 0x0000000000000000 in ?? ()

Thread 9 (Thread 0x7fc6aaffd700 (LWP 5904)):
#0  0x00007fc717e0bb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc7106f4ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc6a40008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6aaffce00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1b63750) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc6aaffd700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 8 (Thread 0x7fc6aa7fc700 (LWP 5905)):
#0  0x00007fc712054f69 in __pthread_mutex_lock (mutex=0x7fc694000a60) at pthread_mutex_lock.c:92
#1  0x00007fc710730571 in g_mutex_lock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f4729 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc7106f4f1b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc6940008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6aa7fbe00, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#9  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1b68ba0) at thread/qthread_unix.cpp:298
#10 0x00007fc712052e9a in start_thread (arg=0x7fc6aa7fc700) at pthread_create.c:308
#11 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#12 0x0000000000000000 in ?? ()

Thread 7 (Thread 0x7fc6a9ffb700 (LWP 5906)):
[KCrash Handler]
#6  0x00007fc717e509fe in __nscd_get_mapping (type=<optimized out>, key=0x7fc717e9e990 "hosts", mappedp=0x7fc7180e14a8) at nscd_helper.c:417
#7  0x00007fc717e4ea58 in __nscd_get_nl_timestamp () at nscd_gethst_r.c:113
#8  0x00007fc717e3d108 in __check_pf (seen_ipv4=0x7fc6a9ffa77e, seen_ipv6=0x7fc6a9ffa77f, in6ai=0x7fc6a9ffa740, in6ailen=0x7fc6a9ffa750) at ../sysdeps/unix/sysv/linux/check_pf.c:322
#9  0x00007fc717df275d in __GI_getaddrinfo (name=0x7fc690002c38 "www.youtube.com", service=<optimized out>, hints=0x7fc6a9ffa7e0, pai=0x7fc6a9ffa8d8) at ../sysdeps/posix/getaddrinfo.c:2372
#10 0x00007fc71444dc9a in QHostInfoAgent::fromName (hostName=...) at kernel/qhostinfo_unix.cpp:212
#11 0x00007fc7144428f8 in QHostInfoRunnable::run (this=0x7fc6a0003bb0) at kernel/qhostinfo.cpp:503
#12 0x00007fc7128d14f2 in QThreadPoolThread::run (this=0x7fc6a0006b80) at concurrent/qthreadpool.cpp:107
#13 0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x7fc6a0006b80) at thread/qthread_unix.cpp:298
#14 0x00007fc712052e9a in start_thread (arg=0x7fc6a9ffb700) at pthread_create.c:308
#15 0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#16 0x0000000000000000 in ?? ()

Thread 6 (Thread 0x7fc6a97fa700 (LWP 5908)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
#1  0x00007fc717e3d31d in _L_lock_749 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fc717e3d0f9 in __check_pf (seen_ipv4=0x7fc7180e0780, seen_ipv6=0x7fc6a97f977f, in6ai=0x7fc6a97f9740, in6ailen=0xffffffffffffffff) at ../sysdeps/unix/sysv/linux/check_pf.c:313
#3  0x00007fc717df275d in __GI_getaddrinfo (name=0x7fc684002b78 "www.m-w.com", service=<optimized out>, hints=0x7fc6a97f97e0, pai=0x7fc6a97f98d8) at ../sysdeps/posix/getaddrinfo.c:2372
#4  0x00007fc71444dc9a in QHostInfoAgent::fromName (hostName=...) at kernel/qhostinfo_unix.cpp:212
#5  0x00007fc7144428f8 in QHostInfoRunnable::run (this=0x7fc694004c50) at kernel/qhostinfo.cpp:503
#6  0x00007fc7128d14f2 in QThreadPoolThread::run (this=0x7fc694006280) at concurrent/qthreadpool.cpp:107
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x7fc694006280) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc6a97fa700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 5 (Thread 0x7fc6a8ff9700 (LWP 5909)):
#0  0x00007fc717e0bb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc7106f4ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc712a0c3bf in QEventDispatcherGlib::processEvents (this=0x7fc6800008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc6a8ff8e00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1b6dd20) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc6a8ff9700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 4 (Thread 0x7fc69b7fe700 (LWP 5910)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
#1  0x00007fc717e3d31d in _L_lock_749 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fc717e3d0f9 in __check_pf (seen_ipv4=0x7fc7180e0780, seen_ipv6=0x7fc69b7fd77f, in6ai=0x7fc69b7fd740, in6ailen=0xffffffffffffffff) at ../sysdeps/unix/sysv/linux/check_pf.c:313
#3  0x00007fc717df275d in __GI_getaddrinfo (name=0x7fc678002748 "www.google.com", service=<optimized out>, hints=0x7fc69b7fd7e0, pai=0x7fc69b7fd8d8) at ../sysdeps/posix/getaddrinfo.c:2372
#4  0x00007fc71444dc9a in QHostInfoAgent::fromName (hostName=...) at kernel/qhostinfo_unix.cpp:212
#5  0x00007fc7144428f8 in QHostInfoRunnable::run (this=0x7fc6b00039a0) at kernel/qhostinfo.cpp:503
#6  0x00007fc7128d14f2 in QThreadPoolThread::run (this=0x7fc6b0006460) at concurrent/qthreadpool.cpp:107
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x7fc6b0006460) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc69b7fe700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7fc69affd700 (LWP 5911)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:93
#1  0x00007fc717e3d31d in _L_lock_749 () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x00007fc717e3d0f9 in __check_pf (seen_ipv4=0x7fc7180e0780, seen_ipv6=0x7fc69affc77f, in6ai=0x7fc69affc740, in6ailen=0xffffffffffffffff) at ../sysdeps/unix/sysv/linux/check_pf.c:313
#3  0x00007fc717df275d in __GI_getaddrinfo (name=0x7fc67c002a58 "news.google.com", service=<optimized out>, hints=0x7fc69affc7e0, pai=0x7fc69affc8d8) at ../sysdeps/posix/getaddrinfo.c:2372
#4  0x00007fc71444dc9a in QHostInfoAgent::fromName (hostName=...) at kernel/qhostinfo_unix.cpp:212
#5  0x00007fc7144428f8 in QHostInfoRunnable::run (this=0x7fc6a40039b0) at kernel/qhostinfo.cpp:503
#6  0x00007fc7128d14f2 in QThreadPoolThread::run (this=0x7fc6a40064c0) at concurrent/qthreadpool.cpp:107
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x7fc6a40064c0) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc69affd700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc69a7fc700 (LWP 5912)):
#0  0x00007fc717e0bb03 in __GI___poll (fds=<optimized out>, nfds=<optimized out>, timeout=<optimized out>) at ../sysdeps/unix/sysv/linux/poll.c:87
#1  0x00007fc7106f4ff6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc712a0c426 in QEventDispatcherGlib::processEvents (this=0x7fc68c0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:426
#4  0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fc69a7fbe00, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007fc7128dafa7 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:501
#7  0x00007fc7128ddfcb in QThreadPrivate::start (arg=0x1b72bd0) at thread/qthread_unix.cpp:298
#8  0x00007fc712052e9a in start_thread (arg=0x7fc69a7fc700) at pthread_create.c:308
#9  0x00007fc717e174bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#10 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc718607780 (LWP 5890)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007fc7128de4db in wait (time=18446744073709551615, this=0x7fc6a0006920) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=0x7fc6a0006858, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007fc7128d0c7e in QThreadPoolPrivate::waitForDone (this=0x7fc6a00067d0, msecs=-1) at concurrent/qthreadpool.cpp:298
#4  0x00007fc7128d2672 in QThreadPool::waitForDone (this=<optimized out>) at concurrent/qthreadpool.cpp:628
#5  0x00007fc714441b44 in QHostInfoLookupManager::clear (this=0x7fc6a00066a0) at kernel/qhostinfo.cpp:569
#6  0x00007fc714442bf5 in QHostInfoLookupManager::~QHostInfoLookupManager (this=0x7fc6a00066a0, __in_chrg=<optimized out>) at kernel/qhostinfo.cpp:554
#7  0x00007fc714442e59 in QHostInfoLookupManager::~QHostInfoLookupManager (this=0x7fc6a00066a0, __in_chrg=<optimized out>) at kernel/qhostinfo.cpp:555
#8  0x00007fc714442e95 in QGlobalStaticDeleter<QHostInfoLookupManager>::~QGlobalStaticDeleter (this=<optimized out>, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qglobal.h:1923
#9  0x00007fc717d60921 in __run_exit_handlers (status=1, listp=0x7fc7180db688, run_list_atexit=true) at exit.c:78
#10 0x00007fc717d609a5 in __GI_exit (status=<optimized out>) at exit.c:100
#11 0x00007fc712f6b5e8 in qt_xio_errhandler () at kernel/qapplication_x11.cpp:780
#12 0x00007fc715474e08 in KApplication::xioErrhandler (this=0x7fff1b5c23f0, dpy=0x12333a0) at ../../kdeui/kernel/kapplication.cpp:419
#13 0x00007fc7103b941e in _XIOError () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#14 0x00007fc7103b6e1d in _XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#15 0x00007fc7103a842f in XEventsQueued () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#16 0x00007fc712fa806e in x11EventSourceDispatch (s=0x121d870, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:151
#17 0x00007fc7106f4c9a in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007fc7106f5060 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fc7106f5124 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007fc712a0c3bf in QEventDispatcherGlib::processEvents (this=0x11e2ad0, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#21 0x00007fc712fa7d6e in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#22 0x00007fc7129dbc82 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#23 0x00007fc7129dbed7 in QEventLoop::exec (this=0x7fff1b5c2380, flags=...) at kernel/qeventloop.cpp:204
#24 0x00007fc7129e0f67 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148
#25 0x00007fc7181f0c9e in kdemain (argc=1, argv=<optimized out>) at /build/buildd/rekonq-0.9.1/src/main.cpp:180
#26 0x00007fc717d4676d in __libc_start_main (main=0x400630 <main(int, char**)>, argc=1, ubp_av=0x7fff1b5c2ba8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff1b5c2b98) at libc-start.c:226
#27 0x0000000000400661 in _start ()

Reported using DrKonqi
Comment 1 Nate Graham 2018-05-11 16:20:19 UTC 
Development on Rekonq ceased four years ago, and it has been unmaintained since then. KDE recommends using Falkon instead.