Comment 12 for bug 46034

Possibly useful information discovered. After crashing mine tonight in the same way as in my last comment, I used ctrl-alt-f1 to log in textually and see what processes were lying around. Then I attempted to go back to X via ctrl-alt-f7, and discovered that X had restarted on VT 8 instead of 7, and 7 was showing this:

*** glibc detected *** free(): invalid next size (normal): 0x0000000000997c0 ***