Version:            (using KDE KDE 3.5.7)
Installed from:    Debian testing/unstable Packages
Compiler:          gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)  
OS:                Linux

I run Debian etch with backportet kde 3.5.7 packages from sid (compiled by me).

Some times konqueror crashed.. i have installed the dbg packages from kde and libc, that i can make a backtrace...

Thats the result: 

Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1232627488 (LWP 20720)]
[KCrash handler]
#6  0xb716f72f in ~QDesktopWidgetPrivate (this=0x80be430)
    at kernel/qdesktopwidget_x11.cpp:103
#7  0xb716f818 in ~QDesktopWidget (this=0x80c1ac8)
    at kernel/qdesktopwidget_x11.cpp:189
#8  0xb71ceba2 in ~QApplication (this=0xbfd16838)
    at kernel/qapplication.cpp:1046
#9  0xb7843329 in ~KApplication (this=0xbfd16838)
    at /usr/src/kde/kdelibs-3.5.7.dfsg.1/./kdecore/kapplication.cpp:1644
#10 0xb67336ab in kdemain (argc=2, argv=0x80818a8)
    at /usr/src/kde/kdebase-3.5.7/./kate/app/kwritemain.cpp:692
#11 0xb7f21524 in kdeinitmain (argc=2, argv=0x80818a8) at kwrite_dummy.cpp:3
#12 0x0804e457 in launch (argc=2, _name=0x8079184 "kwrite", 
    args=0x80791b2 "", cwd=0x0, envc=1, envs=0x80791c3 "", reset_env=false, 
    tty=0x0, avoid_loops=false, 
    startup_id_str=0x80791c8 "alienpc;1183292539;237164;23984_TIME2176532751")
    at /usr/src/kde/kdelibs-3.5.7.dfsg.1/./kinit/kinit.cpp:673
#13 0x0804ecf9 in handle_launcher_request (sock=9)
    at /usr/src/kde/kdelibs-3.5.7.dfsg.1/./kinit/kinit.cpp:1240
#14 0x0804f092 in handle_requests (waitForPid=0)
    at /usr/src/kde/kdelibs-3.5.7.dfsg.1/./kinit/kinit.cpp:1443
#15 0x080502b1 in main (argc=5, argv=0xbfd17164, envp=0xbfd1717c)
    at /usr/src/kde/kdelibs-3.5.7.dfsg.1/./kinit/kinit.cpp:1909
#16 0xb7c94ea8 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#17 0x0804b911 in _start () at ../sysdeps/i386/elf/start.S:119

The Crash was triggert by closing the apllication...

I hope it can help to fix a bug in kde and make it more stable ;-)

Thomas