Version: 1.10.1 (using 4.1.2 (KDE 4.1.2), 4.1.2-2.fc9 Fedora) Compiler: gcc OS: Linux (i686) release 2.6.26.5-45.fc9.i686 $ tail ~/.xsession-errors kwin: X Error (error: <unknown>[DAMAGE+0], request: XDamageDestroy[DAMAGE+2], resource: 0x1403f7b) Enchant dict for "en_US" 0xabcce30 Enchant dict for "en_US" 0xabcce30 Enchant dict for "en_US" 0xabcce30 Enchant dict for "ru_RU" 0xb615160 *** KMail got signal 11 (Crashing) QObject: Do not delete object, 'unnamed', during its event handler!
Let me guess: you had on-the-fly spellchecking enabled while you were typing the message? (sounds to me like a duplicate of the spellchecker bugs)
Yes, on-the-fly spellchecking enabled. But after upgrade system, problem was solved.