Version:            (using KDE KDE 3.5.3)
Installed from:    Gentoo Packages
Compiler:          gcc 3.4.6 
OS:                Linux

Since about KDE 3.5.2, KMail has started to crash on a regular basis. It is not Kontact, since if I'm reading Usenet with KNode it is stable. If KMail is active however, even if minimised, it will at some point crash. If left open, this will happen several times a day.

Despite compiling with debug, I don't get much from the stack trace (it's included below). The one consistent factor is that it always crashes in the same functions, including nanosleep.

(no debugging symbols found)
Using host libthread_db library "/lib/libthread_db.so.1".
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 16384 (LWP 30589)]
[New Thread 32769 (LWP 30590)]
[New Thread 16386 (LWP 30591)]
[New Thread 32771 (LWP 30592)]
[New Thread 49156 (LWP 30593)]
[New Thread 65541 (LWP 30594)]
0x00002aaab0933015 in nanosleep () from /lib/libc.so.6
#0  0x00002aaab0933015 in nanosleep () from /lib/libc.so.6
#1  0x00002aaab0932eb2 in sleep () from /lib/libc.so.6
#2  0x00002aaaadb1031a in KCrash::startDrKonqi ()
   from /usr/kde/3.5/lib64/libkdecore.so.4
#3  0x00002aaaadb1064e in KCrash::defaultCrashHandler ()
   from /usr/kde/3.5/lib64/libkdecore.so.4
#4  0x00002aaab02ccc17 in __pthread_sighandler () from /lib/libpthread.so.0
#5  0x00002aaab08d68b0 in killpg () from /lib/libc.so.6
#6  0x0000000000000000 in ?? ()


I'm using Gentoo on AMD64, and I've noticed that some other people have the same problem, as shown in these threads:

http://forums.gentoo.org/viewtopic-t-432364-highlight-kmail+nanosleep.html

http://forums.gentoo.org/viewtopic-t-473271-highlight-kmail+nanosleep.html