Application: konstruktor (0.9.0-beta1)
KDE Platform Version: 4.6.5 (4.6.5)
Qt Version: 4.7.2
Operating System: Linux 2.6.38-11-generic x86_64
Distribution: Ubuntu 11.04

-- Information about the crash:
- What I was doing when the application crashed:
Opening a file .ldr or .mlcad (files created previously with MLCad on Windows)
.mlcad can be found here : 
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=189421

Ubuntu 11.04, using Gnome.

The crash can be reproduced every time.

-- Backtrace:
Application: Konstruktor (konstruktor), signal: Segmentation fault
[Current thread is 1 (Thread 0x7fc19cd777a0 (LWP 2586))]

Thread 3 (Thread 0x7fc190373700 (LWP 2587)):
#0  0x00007fc19850bf03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc19586c104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc19586c9f2 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc190cd2c44 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fc1958933e4 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fc19b05bd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007fc19851904d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#7  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7fc184977700 (LWP 2650)):
#0  0x00007fc19850bf03 in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007fc19586c104 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc19586c639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc19b3f9446 in QEventDispatcherGlib::processEvents (this=0x103ac00, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:424
#4  0x00007fc19b3cd882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007fc19b3cdabc in QEventLoop::exec (this=0x7fc184976db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x00007fc19b2e4924 in QThread::exec (this=<value optimized out>) at thread/qthread.cpp:492
#7  0x00007fc19b3afc2f in QInotifyFileSystemWatcherEngine::run (this=0xf5deb0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x00007fc19b2e7175 in QThreadPrivate::start (arg=0xf5deb0) at thread/qthread_unix.cpp:320
#9  0x00007fc19b05bd8c in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007fc19851904d in clone () from /lib/x86_64-linux-gnu/libc.so.6
#11 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7fc19cd777a0 (LWP 2586)):
[KCrash Handler]
#6  r600_buffer_is_user_buffer (rctx=0xe38410) at r600_resource.h:103
#7  r600_upload_user_buffers (rctx=0xe38410) at r600_buffer.c:235
#8  0x00007fc17d6fd91f in r600_vertex_buffer_update (rctx=0xe38410) at r600_state.c:147
#9  0x00007fc17d7bca2d in st_draw_vbo (ctx=0x16b9610, arrays=<value optimized out>, prims=0x7fff398c0250, nr_prims=1, ib=0x0, index_bounds_valid=<value optimized out>, min_index=0, max_index=1263) at state_tracker/st_draw.c:709
#10 0x00007fc17d7b92fb in vbo_draw_arrays (ctx=0x16b9610, mode=1, start=0, count=<value optimized out>, numInstances=1) at vbo/vbo_exec_array.c:588
#11 0x00007fc19c98c15b in ldraw_renderer::renderer_opengl_retained::render_recursive(ldraw::model*, ldraw_renderer::render_filter const*, int) () from /usr/lib/libldrawrenderer.so.1
#12 0x00007fc19c98be47 in ldraw_renderer::renderer_opengl_retained::render_recursive(ldraw::model*, ldraw_renderer::render_filter const*, int) () from /usr/lib/libldrawrenderer.so.1
#13 0x00007fc19c98cd1e in ldraw_renderer::renderer_opengl_retained::render(ldraw::model*, ldraw_renderer::render_filter const*) () from /usr/lib/libldrawrenderer.so.1
#14 0x000000000045ed81 in ?? ()
#15 0x000000000045b74e in ?? ()
#16 0x00007fc19a5bec7a in QWidget::event (this=0xb70e30, event=0x7fff398c0f50) at kernel/qwidget.cpp:8405
#17 0x00007fc19a0f71b1 in QGLWidget::event (this=0xb70e30, e=0x7fff398c0f50) at qgl.cpp:4264
#18 0x00007fc19a56d9f4 in QApplicationPrivate::notify_helper (this=0x7d6560, receiver=0xb70e30, e=0x7fff398c0f50) at kernel/qapplication.cpp:4462
#19 0x00007fc19a5723ba in QApplication::notify (this=<value optimized out>, receiver=0xb70e30, e=0x7fff398c0f50) at kernel/qapplication.cpp:4341
#20 0x00007fc19b93f6c6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#21 0x00007fc19b3ce49c in QCoreApplication::notifyInternal (this=0x7fff398c1d80, receiver=0xb70e30, event=0x7fff398c0f50) at kernel/qcoreapplication.cpp:731
#22 0x00007fc19a5bbacd in sendSpontaneousEvent (this=0xe192a0, pdev=0xb70e40, rgn=..., offset=..., flags=3, sharedPainter=0x0, backingStore=0x0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#23 QWidgetPrivate::drawWidget (this=0xe192a0, pdev=0xb70e40, rgn=..., offset=..., flags=3, sharedPainter=0x0, backingStore=0x0) at kernel/qwidget.cpp:5492
#24 0x00007fc19a77db77 in QWidgetPrivate::repaint_sys (this=0xe192a0, rgn=...) at painting/qbackingstore.cpp:1612
#25 0x00007fc19a5b1f04 in QWidgetPrivate::syncBackingStore (this=0xe192a0) at kernel/qwidget.cpp:1834
#26 0x00007fc19a5bf194 in QWidget::event (this=0xb70e30, event=0xea4c20) at kernel/qwidget.cpp:8552
#27 0x00007fc19a0f71b1 in QGLWidget::event (this=0xb70e30, e=0xea4c20) at qgl.cpp:4264
#28 0x00007fc19a56d9f4 in QApplicationPrivate::notify_helper (this=0x7d6560, receiver=0xb70e30, e=0xea4c20) at kernel/qapplication.cpp:4462
#29 0x00007fc19a5723ba in QApplication::notify (this=<value optimized out>, receiver=0xb70e30, e=0xea4c20) at kernel/qapplication.cpp:4341
#30 0x00007fc19b93f6c6 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#31 0x00007fc19b3ce49c in QCoreApplication::notifyInternal (this=0x7fff398c1d80, receiver=0xb70e30, event=0xea4c20) at kernel/qcoreapplication.cpp:731
#32 0x00007fc19b3d1c25 in sendEvent (receiver=0x0, event_type=0, data=0x773b60) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#33 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x773b60) at kernel/qcoreapplication.cpp:1372
#34 0x00007fc19b3f9253 in sendPostedEvents (s=0x7da160) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#35 postEventSourceDispatch (s=0x7da160) at kernel/qeventdispatcher_glib.cpp:277
#36 0x00007fc19586bbcd in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#37 0x00007fc19586c3a8 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#38 0x00007fc19586c639 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#39 0x00007fc19b3f93ef in QEventDispatcherGlib::processEvents (this=0x773340, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:422
#40 0x00007fc19a6174de in QGuiEventDispatcherGlib::processEvents (this=<value optimized out>, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:204
#41 0x00007fc19b3cd882 in QEventLoop::processEvents (this=<value optimized out>, flags=...) at kernel/qeventloop.cpp:149
#42 0x00007fc19b3cdabc in QEventLoop::exec (this=0x7fff398c1c80, flags=...) at kernel/qeventloop.cpp:201
#43 0x00007fc19b3d1ecb in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1008
#44 0x0000000000464d58 in ?? ()
#45 0x00007fc198451eff in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#46 0x000000000041efe9 in _start ()

Reported using DrKonqi