The code appears to be failing while dereferencing the reg pointer in
this (inlined) routine:
static inline int RegionNumRects(RegionPtr reg) {
return ((reg)->data ? (reg)->data->numRects : 1);
}
So, this looks more like memory corruption than a simple pointer deref error.
Have you had further X server crashes like this one, or was it just the
one?
** Changed in: xorg-server (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/927674
Title:
Xorg crashed with SIGSEGV in RegionNumRects()
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