Comment 32 for bug 1510970

Devs, please check if this bug is the same as Bug #1501088 Bug #1501468 Bug #1502397 Bug #1503991 Bug #1504102 Bug #1504806 Bug #1504998 Bug #1505400 Bug #1505755 Bug #1505920 Bug #1506134 bug #1506321 Bug #1506346 Bug #1506650 Bug #1507059 Bug #1507202 Bug #1507343 Bug #1507569 Bug #1507659 bug #1509355 bug #1509622 Bug #1509644 Bug #1509846 bug #1509846 bug #1510998 bug #1511145 bug #1511343 bug #1511476 bug #1511512 bug #1511615 bug #1511704 Bug #1511819 Bug #1511898 Bug #1512097 Bug #1512365

They all show common patterns such as:
- Intel graphic cards
- Ubuntu 15.10
- Unity desktop environment
- Xorg crashes while opening applications windows or menus such as in thunderbird/libreoffice/etc.

From my findings, a temporary workaround to prevent X from crashing while opening windows/menus is to disable window animations in Compiz. Use compizconfig-settings-manager for this tweak (sudo apt-get install compizconfig-settings-manager). You can also use desktop environments such as XFCE and LXDE which do not use compiz.

After upgrading to kernel 4.3 I didn't run into this issue for several (5) days.
Kernels can be downloaded from http://kernel.ubuntu.com/~kernel-ppa/mainline/

Please join me in testing is this bug has been fixed upstream.

My current kernel:
Linux 4.3.0-040300rc7-generic #201510260712 SMP Mon Oct 26 11:14:07 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux