I just realized a new element that all of these scenarios have in
common: the screensaver.
The screensaver is activated when coming back from resume.
The crash during installation happened at just about the point where the
screensaver activated due to an activity timeout (I noticed during my
Matt: if it is screensaver related, it's probably not because of some 3D parts
- I have a blank screen and am seeing this, although I've yet to find a log of
it (perhaps just because of a lack of retention of Xorg logs for very long,
which is something I filed separately a while ago as Bug
I get this crash on resume from time to time. But I also get a crash
with the same symptoms on switching between the internal LVDS and an
external VGA with xrandr but without a suspend/resume.
--
X server crash: *** glibc detected *** free(): in valid next size (fast)
I got suspicious when I saw LogVMessageVerb in the backtrace, which I
have touched recently myself... Sure enough I did not think about the
possibility of clocks going backwards (which they sometimes do after
resume) when I worked on the timestamp stuff and you end up with nice
timestamps (like
