Public bug reported:
Binary package hint: xserver-xorg-core
this bug is caused while the root window is visited, then the code still
try to visit the parent drawable.id. so the segment fault is there. the
following code change is about how to fix it and passed the test.
here is the diff file for xorg-server-1.10.1/Xext/panoramiXprocs.c
565,566c565
< if((pWin->parent == screenInfo.screens[0]->root) ||
< (pWin->parent->drawable.id ==
screenInfo.screens[0]->screensaver.wid))
---
> if((pWin->parent == screenInfo.screens[0]->root))
568,570c567,577
< rep.x += screenInfo.screens[0]->x;
< rep.y += screenInfo.screens[0]->y;
< }
---
> rep.x += screenInfo.screens[0]->x;
> rep.y += screenInfo.screens[0]->y;
> }
> if(pWin->parent != 0)
> {
> if((pWin->parent->drawable.id ==
> screenInfo.screens[0]->screensaver.wid))
> {
> rep.x += screenInfo.screens[0]->x;
> rep.y += screenInfo.screens[0]->y;
> }
> }
** Affects: xorg-server (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/795352
Title:
while enalbled the xinerama the xserver would face a segment fault
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