Comment 63 for bug 805087

Still affected by this, also unity/compiz/gtk-window-decorator seems to crash at random ('unity &> /dev/null & disown' fixes stuff... but I believe I ended up with the bug described here then). Everything's upgraded to latest packages.
dmesg output:
[57186.414368] gtk-window-deco[12531]: segfault at 118 ip 000000000040fc50 sp 00007fffe7276bb0 error 4 in gtk-window-decorator[400000+1c000]
[58080.808870] compiz[13398] general protection ip:7f1ab4dcac1d sp:7fffaf573670 error:0 in libunityshell.so[7f1ab4c6b000+225000]
[58093.878274] compiz[20080]: segfault at 688 ip 00007f43feb2fc30 sp 00007ffff7b774a0 error 4 in libunityshell.so[7f43fe990000+225000]
[58114.100402] ccsm[20060]: segfault at 18 ip 00007f3ace82c1c7 sp 00007fff5ca4a6a0 error 6 in libcompizconfig.so.0.0.0[7f3ace808000+42000]
[58270.644255] compiz[20923]: segfault at 58 ip 00007f4b846486d1 sp 00007fffe3a07a98 error 4 in libnvidia-glcore.so.280.13[7f4b8359a000+15f4000]