This is KDE2 on rc1 (I have /usr/lib/kde2/bin first in my path).

Login to sawfish/gnome.  Restoring running kmail.  I get the following
backtrace from a klauncher failure:

Here is a backtrace generated by DrKonqi:
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...(no debugging symbols found)...
(no debugging symbols found)...[New Thread 1024 (LWP 1035)]
0x40ff7ed9 in __wait4 () from /lib/libc.so.6
#0  0x40ff7ed9 in __wait4 () from /lib/libc.so.6
#1  0x4105f668 in __DTOR_END__ () from /lib/libc.so.6
#2  0x4073cc67 in KCrash::defaultCrashHandler ()
   from /usr/lib/kde2/lib/libkdecore.so.3
#3  <signal handler called>
#4  0x40f6ffd1 in __kill () from /lib/libc.so.6
#5  0x40f6fdaa in raise (sig=6) at ../sysdeps/posix/raise.c:27
#6  0x40f71552 in abort () at ../sysdeps/generic/abort.c:88
#7  0x40682602 in kDebugBackend () from /usr/lib/kde2/lib/libkdecore.so.3
#8  0x40683433 in kdbgstream::flush () from
/usr/lib/kde2/lib/libkdecore.so.3
#9  0x400993d2 in endl () from /usr/lib/kde2/lib/libkparts.so.1
#10 0x406e033d in KUniqueApplication::start ()
   from /usr/lib/kde2/lib/libkdecore.so.3
#11 0x406e0ebb in KUniqueApplication::KUniqueApplication ()
   from /usr/lib/kde2/lib/libkdecore.so.3
#12 0x410862a9 in KLauncher::KLauncher () from
/usr/lib/kde2/lib/klauncher.so
#13 0x41093aa2 in start_launcher () from /usr/lib/kde2/lib/klauncher.so
#14 0x804a50e in strcpy () at ../sysdeps/generic/strcpy.c:31
#15 0x804c9c0 in strcpy () at ../sysdeps/generic/strcpy.c:31
#16 0x40f5f665 in __libc_start_main (main=0x804c6f0 <strcpy+10604>, argc=1, 
    ubp_av=0xbffff9a4, init=0x8049794 <_init>, fini=0x804cf28 <_fini>, 
    rtld_fini=0x4000dca4 <_dl_fini>, stack_end=0xbffff99c)
    at ../sysdeps/generic/libc-start.c:111