Ah. The invalid pointer bit is a red herring. The actual problem here is that X is segfaulting in your input driver - evdev_drv.
Annoyingly, this is the only frame in your backtrace which hasn't been successfully retraced. If you can reproduce this crash, could you please try following https://wiki.ubuntu.com/DebuggingProgramCrash and installing the xserver-xorg-input-evdev-dbgsym package before reproducing it? Hopefully then the automatic crash dump will be able to resolve the crash better. ** Changed in: xorg-server (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/839039 Title: Xorg assert failure: *** glibc detected *** X: munmap_chunk(): invalid pointer: 0x0000000001970070 *** To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/839039/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
