doc-tab-bug in beta2??(was:Re: Problems with compiler option -g and configure)

[Mr. Data]

On Sam, 29 Jan 2000 you wrote:
> On Sat, 29 Jan 2000,  Joachim Ansorg wrote:
[snip]
> > BTW, KDevelop does crash again (only sometime) if I click on the Doc Tab.
> 
> Oh no :(
> 
> Are you on cvs version or released beta1?
> What did you do just before this? compile? load a project?
> Don't happen to have a backtrace?
> 
> Umm, it's a difficult one because its not reproducable. Or rather since that
> last fix a week ago, I've not been able to crash this. I'm guessing it'll be
> the same qt bug being triggered in a different way, but ...
[snap] 

Hi,
it seems that your talking about the doc-tab-crash-bug ("an old friend of
mine"). The doc-tab-bug is 100% reproducable on my system.
(In Version 1.1beta1;CVSUP;and still in beta2)

Just do the following: 
->disable the outputview
->click the doctab
->expand some listitems until the vertical scrollbar appears
->load a project
->while loading, click docbrowsertab, then immediatly outputview toolbutton
->crash !

The backtrace looks different from crash to crash (I added three of them),
but is almost the same in any version I tried.

One guy on this list told me, that he can´t reproduce this.

Just some thoughts:

- If you run Kdevelop with a high screen resolution (e.g. 1600x1200 pixel), you
won´t run into this bug very often, because the listview can contain more items?
But the bug should be reproducable if you expand the listview like I said
before.
- Maybe this bug occurs more often on slow machines? (I´m running an old i586
here)
- Maybe there is something wrong with my qt-libs? (But the other KDE-apps run
stable!?)
- Maybe I´m doing something real stupid? 

My wish:

Can anyone try this, and confirm this bug (it only takes a minute)?
I just would like to know, whether I´m the only one with this problem.

Sorry for for this mega-mail, but I thought it could be helpful.

Bye M.D.


i586, SuSe 6.1, egcs-2.91.66
----------------------------------------
Program received signal SIGSEGV, Segmentation fault.
0x40168e1f in QListView::drawContentsOffset ()
(gdb) bt
#0  0x40168e1f in QListView::drawContentsOffset ()
#1  0x40187f9b in QScrollView::viewportPaintEvent ()
#2  0x40187dbd in QScrollView::eventFilter ()
#3  0x4016a7fe in QListView::eventFilter ()
#4  0x4011a3ea in QObject::activate_filters ()
#5  0x40130fd5 in QWidget::event ()
#6  0x400f5400 in QApplication::notify ()
#7  0x401c368c in QWidget::repaint ()
#8  0x401c420f in QWidget::setGeometry ()
#9  0x40186efe in QScrollView::updateScrollBars ()
#10 0x401888db in QScrollView::resizeContents ()
#11 0x4016a165 in QListView::updateGeometries ()
#12 0x4016a0ce in QListView::show ()
#13 0x40438565 in KTabCtl::showTab ()
#14 0x4011c677 in QObject::activate_signal ()
#15 0x401dc7d4 in QTabBar::selected ()
#16 0x40193154 in QTabBar::setCurrentTab ()
#17 0x40192fc5 in QTabBar::setCurrentTab ()
#18 0x8092e45 in _start ()
#19 0x807c439 in _start ()                            
-------------------------------------
Program received signal SIGSEGV, Segmentation fault.
0x4016c146 in QListView::itemMargin ()
(gdb) bt
#0  0x4016c146 in QListView::itemMargin ()
#1  0x40167247 in QListViewItem::paintCell ()
#2  0x40168e24 in QListView::drawContentsOffset ()
#3  0x40187f9b in QScrollView::viewportPaintEvent ()
#4  0x40187dbd in QScrollView::eventFilter ()
#5  0x4016a7fe in QListView::eventFilter ()
#6  0x4011a3ea in QObject::activate_filters ()
#7  0x40130fd5 in QWidget::event ()
#8  0x400f5400 in QApplication::notify ()
#9  0x401c368c in QWidget::repaint ()
#10 0x401c420f in QWidget::setGeometry ()
#11 0x40186efe in QScrollView::updateScrollBars ()
#12 0x401888db in QScrollView::resizeContents ()
#13 0x4016a165 in QListView::updateGeometries ()
#14 0x4016a0ce in QListView::show ()
#15 0x40438565 in KTabCtl::showTab ()
#16 0x4011c677 in QObject::activate_signal ()
#17 0x401dc7d4 in QTabBar::selected ()
#18 0x40193154 in QTabBar::setCurrentTab ()
#19 0x40192fc5 in QTabBar::setCurrentTab ()
#20 0x8092e45 in _start ()
#
-----------------------------------
Program received signal SIGSEGV, Segmentation fault.
0x4016726d in QListViewItem::paintCell ()
(gdb) bt
#0  0x4016726d in QListViewItem::paintCell ()
#1  0x40168e24 in QListView::drawContentsOffset ()
#2  0x40187f9b in QScrollView::viewportPaintEvent ()
#3  0x40187dbd in QScrollView::eventFilter ()
#4  0x4016a7fe in QListView::eventFilter ()
#5  0x4011a3ea in QObject::activate_filters ()
#6  0x40130fd5 in QWidget::event ()
#7  0x400f5400 in QApplication::notify ()
#8  0x401c368c in QWidget::repaint ()
#9  0x401c420f in QWidget::setGeometry ()
#10 0x40186efe in QScrollView::updateScrollBars ()
#11 0x401888db in QScrollView::resizeContents ()
#12 0x4016a165 in QListView::updateGeometries ()
#13 0x4016a0ce in QListView::show ()
#14 0x40438565 in KTabCtl::showTab ()
#15 0x4011c677 in QObject::activate_signal ()
#16 0x401dc7d4 in QTabBar::selected ()
#17 0x40193154 in QTabBar::setCurrentTab ()
#18 0x40192fc5 in QTabBar::setCurrentTab ()
#19 0x8092e45 in _start ()