Me too in Kubuntu Jaunty. My backtrace is not very useful as most symbols are missing: (gdb) bt #0 0xb7feb430 in __kernel_vsyscall () #1 0xb7fc5cf9 in __lll_lock_wait () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb7fc1129 in _L_lock_89 () from /lib/tls/i686/cmov/libpthread.so.0 #3 0xb7fc0a32 in pthread_mutex_lock () from /lib/tls/i686/cmov/libpthread.so.0 #4 0xb63f468f in xcb_writev () from /usr/lib/libxcb.so.1 #5 0xb6a98afa in _XSend () from /usr/lib/libX11.so.6 #6 0xb6a98c23 in _XReply () from /usr/lib/libX11.so.6 #7 0xb6a8c507 in XSync () from /usr/lib/libX11.so.6 #8 0xb6b4c282 in XRenderFindDisplay () from /usr/lib/libXrender.so.1 #9 0xb6b49f25 in XRenderFreePicture () from /usr/lib/libXrender.so.1 #10 0xb4840f49 in ?? () from /usr/lib/libQtGui.so.4 #11 0xb484178d in ?? () from /usr/lib/libQtGui.so.4 #12 0xb4830d97 in QPixmap::deref () from /usr/lib/libQtGui.so.4 #13 0xb48311a0 in QPixmap::~QPixmap () from /usr/lib/libQtGui.so.4 #14 0xb45713fa in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so #15 0xb457df27 in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so #16 0xb457ec55 in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so #17 0xb4594aeb in ?? () from /usr/lib/kde4/plugins/styles/oxygen.so #18 0xb7d5bbb9 in exit () from /lib/tls/i686/cmov/libc.so.6 #19 0xb7d4377d in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6 #20 0x08048d11 in ?? ()
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