Application: calligraplan (2.9.11)
KDE Platform Version: 4.14.22
Qt Version: 4.8.7
Operating System: Linux 4.4.0-21-generic x86_64
Distribution: Ubuntu 16.10

-- Information about the crash:
Hello,

Clicking on a Plan file opens the document but more than often it crashes. This is related to another bug I reported the same day only using the web (Bug 373769).

The crash can be reproduced sometimes.

-- Backtrace:
Application: Plan (calligraplan), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fec053affc0 (LWP 7187))]

Thread 2 (Thread 0x7febe3951700 (LWP 7190)):
#0  0x00007febffc8f090 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007febffc8f8fb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007febffc8faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fec034ac22e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007fec0347a12f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007fec0347a495 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007fec03369549 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007fec0345a1c3 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007fec0336be3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007fec001796ca in start_thread (arg=0x7febe3951700) at pthread_create.c:333
#10 0x00007fec04dbd0af in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7fec053affc0 (LWP 7187)):
[KCrash Handler]
#6  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:58
#7  0x00007fec04cec3ea in __GI_abort () at abort.c:89
#8  0x00007fec04d2e0d0 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fec04e43368 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007fec04d3775a in malloc_printerr (ar_ptr=<optimized out>, ptr=<optimized out>, str=0x7fec04e3fefb "free(): invalid pointer", action=3) at malloc.c:5046
#10 _int_free (av=<optimized out>, p=<optimized out>, have_lock=<optimized out>) at malloc.c:3902
#11 0x00007fec04d3b18c in __GI___libc_free (mem=<optimized out>) at malloc.c:2982
#12 0x00007fec0348d99a in QMetaCallEvent::~QMetaCallEvent() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#13 0x00007fec0348da09 in QMetaCallEvent::~QMetaCallEvent() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#14 0x00007fec0347f370 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#15 0x00007fec034ac09e in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#16 0x00007febffc8f7d7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007febffc8fa40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007febffc8faec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007fec034ac20e in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#20 0x00007fec03f36666 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#21 0x00007fec0347a12f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#22 0x00007fec0347a495 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007fec03480459 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#24 0x00007fec0507d9c5 in kdemain () from /usr/lib/kde4/libkdeinit/libkdeinit4_calligraplan.so
#25 0x00007fec04cd53f1 in __libc_start_main (main=0x5584a8edf770, argc=2, argv=0x7fff07472c28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff07472c18) at ../csu/libc-start.c:291
#26 0x00005584a8edf7aa in _start ()

Possible duplicates by query: bug 348699, bug 347139, bug 347134, bug 347050, bug 346742.

Reported using DrKonqi