Crash when double clicking on a modeller alg

[qgib]

Author Name: Tim Sutton (Tim Sutton)
Original Redmine Issue: 11445
Affected QGIS version: 2.4.0
Redmine category:processing/modeller
Assignee: Victor Olaya

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I made a simple modeller graph (see attached pic). When I double click on the hillshade node, QGIS (da5766c) crashes with:

gdalogr:hillshade
*** Error in `/usr/local/qgis-master/bin/qgis': malloc(): smallbin double linked list corrupted: 0x0000000004a675a0 ***

Program received signal SIGABRT, Aborted.
0x00007fffefa9dbb9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56	../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb) bt
#_0  0x00007fffefa9dbb9 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#_1  0x00007fffefaa0fc8 in __GI_abort () at abort.c:89
#_2  0x00007fffefadae14 in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7fffefbe9668 "*** Error in `%s': %s: 0x%s ***\
") at ../sysdeps/posix/libc_fatal.c:175
#_3  0x00007fffefae5b77 in malloc_printerr (action=<optimized out>, str=0x7fffefbe9a30 "malloc(): smallbin double linked list corrupted", ptr=<optimized out>) at malloc.c:4996
#_4  0x00007fffefae8884 in _int_malloc (av=0x7fffefe26760 <main_arena>, bytes=36) at malloc.c:3359
#_5  0x00007fffefaea230 in __GI___libc_malloc (bytes=36) at malloc.c:2891
#_6  0x00007fffe5088b7d in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#_7  0x00007fffe5086dd7 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#_8  0x00007fffe50883ff in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#_9  0x00007fffe5088512 in xcb_wait_for_reply () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#_10 0x00007fffecbf748f in _XReply () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#_11 0x00007fffecbf30cd in XSync () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#_12 0x00007ffff21c5a75 in QRasterWindowSurface::syncX() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_13 0x00007ffff21c5d55 in QRasterWindowSurface::beginPaint(QRegion const&) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_14 0x00007ffff21df599 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_15 0x00007ffff2011ea0 in QWidgetPrivate::syncBackingStore() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_16 0x00007ffff2021e6a in QWidget::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_17 0x00007fff6ac180ab in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#_18 0x00007ffff1fd2e2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_19 0x00007ffff1fd94a0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_20 0x00007ffff40806e1 in QgsApplication::notify (this=0x7fffffffdb20, receiver=0x5ca36d0, event=0x4a57ef0) at /home/timlinux/dev/cpp/QGIS/src/core/qgsapplication.cpp:243
#_21 0x00007ffff2c394dd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_22 0x00007ffff2c3cb3d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_23 0x00007ffff25a1b12 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_24 0x00007ffff25ab0e9 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_25 0x00007ffff2c51c1e in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_26 0x00007ffff25b83ab in QGraphicsScene::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_27 0x00007fff6ab15a0b in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#_28 0x00007ffff1fd2e2c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_29 0x00007ffff1fd94a0 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_30 0x00007ffff40806e1 in QgsApplication::notify (this=0x7fffffffdb20, receiver=0x5170cd0, event=0x3ffa330) at /home/timlinux/dev/cpp/QGIS/src/core/qgsapplication.cpp:243
#_31 0x00007ffff2c394dd in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_32 0x00007ffff2c3cb3d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_33 0x00007ffff2c66f83 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_34 0x00007fffed8f6e04 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#_35 0x00007fffed8f7048 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#_36 0x00007fffed8f70ec in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#_37 0x00007ffff2c667a1 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_38 0x00007ffff2074bb6 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_39 0x00007ffff2c380af in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_40 0x00007ffff2c383a5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#_41 0x00007ffff2479fec in QDialog::exec() () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#_42 0x00007fff6abf2fb5 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtGui.so
#_43 0x00007fff6b9b70d4 in PyEval_EvalFrameEx () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_44 0x00007fff6b9b917d in PyEval_EvalCodeEx () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_45 0x00007fff6b9b9310 in ?? () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_46 0x00007fff6b980e23 in PyObject_Call () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_47 0x00007fff6b8d430d in ?? () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_48 0x00007fff6b980e23 in PyObject_Call () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_49 0x00007fff6b93f837 in PyEval_CallObjectWithKeywords () from /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
#_50 0x00007fff6b58b048 in sip_api_invoke_slot () from /usr/lib/python2.7/dist-packages/sip.so
#_51 0x00007fff6b296a26 in ?? () from /usr/lib/python2.7/dist-packages/PyQt4/QtCore.so

[qgib]

Author Name: Filipe Dias (@fsdias)

---

See also #15934 for a workaround

[qgib]

Author Name: Tim Sutton (Tim Sutton)

---

Filipe Dias wrote:

See also #15934 for a workaround

Hi Filipe

Thanks, yes agreed avoiding double clicking is a workaround but having a crashing QGIS is something we should really try to fix.

Regards

Tim

[qgib]

Author Name: Victor Olaya (@volaya)

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Double clicking is a more natural way of editing the element, but I agree that a crash is not nice at all, so better to avoid it. I have disabled the double click edit, and now it can be done just by right-clicking and selecting the "edit" entry, or by clicking on the edit icon in the modeler element to edit.

I will investigate further to see how to fix the issue, but i think this is a good solution for now. Thanks Filipe for your help!

---

• status_id was changed from Open to Feedback

[qgib]

Author Name: Tim Sutton (Tim Sutton)

---

Victor Olaya wrote:

Double clicking is a more natural way of editing the element, but I agree that a crash is not nice at all, so better to avoid it. I have disabled the double click edit, and now it can be done just by right-clicking and selecting the "edit" entry, or by clicking on the edit icon in the modeler element to edit.

I will investigate further to see how to fix the issue, but i think this is a good solution for now. Thanks Filipe for your help!

Thanks very much Victor!

[qgib]

Author Name: Giovanni Manghi (@gioman)

---

• resolution was changed from to fixed/implemented
• status_id was changed from Feedback to Closed