Version:            (using KDE Devel)
Installed from:    Compiled sources
Compiler:          gcc 3.2 
OS:          Linux

Quite frequently (about 2% of the time I'd guess), closing an open file causes kdevelop to crash.  I am using a recent dvs snaphot of kde 3.1 and kdevelop 2.1.4, but this has occured with older shapshots and 2.1.3 as well.  I currently have qt 3.1 installed as well.  I use the tab-page mode interface.

here's the bt:

[New Thread 1024 (LWP 1845)]
0x41580499 in __wait4 () at __wait4:-1
	in __wait4
#0  0x41580499 in __wait4 () at __wait4:-1
#1  0x415ffdc8 in __DTOR_END__ () from /lib/libc.so.6
#2  0x414a0b23 in waitpid (pid=-512, stat_loc=0xfffffe00, options=-512)
    at wrapsyscall.c:174
#3  0x40b27ec2 in KCrash::defaultCrashHandler(int) ()
   from /opt/kde/lib/libkdecore.so.4
#4  0x4149e55b in pthread_sighandler (signo=11, ctx=
      {gs = 0, __gsh = 0, fs = 0, __fsh = 0, es = 43, __esh = 0, ds = 43, __dsh = 49168, edi = 137456336, esi = 120, ebp = 3221219656, esp = 3221219628, ebx = 1075175724, edx = 139496376, ecx = 72, eax = 142793120, trapno = 14, err = 4, eip = 1864769568, cs = 35, __csh = 0, eflags = 66054, esp_at_signal = 3221219628, ss = 43, __ssh = 0, fpstate = 0xbfffe6b0, oldmask = 2147483648, cr2 = 1864769568}) at signals.c:97
#5  <signal handler called>
#6  0x6f262020 in ?? ()
#7  0x401532ed in QextMdiMainFrm::qt_invoke(int, QUObject*) ()
   from /opt/kde/lib/libkdevelopqextmdi.so.2
#8  0x081e07d0 in CKDevelop::qt_invoke(int, QUObject*) ()
#9  0x40f5bdf9 in QObject::activate_signal(QConnectionList*, QUObject*) ()
   from /opt/qt/lib/libqt-mt.so.3
#10 0x40f5bc97 in QObject::activate_signal(int) ()
   from /opt/qt/lib/libqt-mt.so.3
#11 0x4124793e in QButton::clicked() () from /opt/qt/lib/libqt-mt.so.3
#12 0x40fdde46 in QButton::mouseReleaseEvent(QMouseEvent*) ()
   from /opt/qt/lib/libqt-mt.so.3
#13 0x40f8fffc in QWidget::event(QEvent*) () from /opt/qt/lib/libqt-mt.so.3
#14 0x40efe2c6 in QApplication::internalNotify(QObject*, QEvent*) ()
   from /opt/qt/lib/libqt-mt.so.3
#15 0x40efd8d3 in QApplication::notify(QObject*, QEvent*) ()
   from /opt/qt/lib/libqt-mt.so.3
#16 0x40a9a3c9 in KApplication::notify(QObject*, QEvent*) ()
   from /opt/kde/lib/libkdecore.so.4
#17 0x40ea3bd6 in QETWidget::translateMouseEvent(_XEvent const*) ()
   from /opt/qt/lib/libqt-mt.so.3
#18 0x40ea1631 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /opt/qt/lib/libqt-mt.so.3
#19 0x40eb6b7a in QEventLoop::processEvents(unsigned) ()
   from /opt/qt/lib/libqt-mt.so.3
#20 0x40f11df6 in QEventLoop::enterLoop() () from /opt/qt/lib/libqt-mt.so.3
#21 0x40f11c98 in QEventLoop::exec() () from /opt/qt/lib/libqt-mt.so.3
#22 0x40efe511 in QApplication::exec() () from /opt/qt/lib/libqt-mt.so.3
#23 0x08115202 in main ()
#24 0x414fa572 in __libc_start_main (main=0x8114640 <main>, argc=7, 
    ubp_av=0xbffff484, init=0x806b138 <_init>, fini=0x82cad38, rtld_fini=0, 
    stack_end=0x0) at ../sysdeps/generic/libc-start.c:129