[Intel-gfx] panning crash

[Felix Miata]

Dell Optiplex GX280
P4 32 bit Hyperthreading enabled 0F34 2.8GHz CPU
00:02.0 VGA compatible controller: Intel Corporation 82915G/GV/910GL Integrated Graphics Controller (rev 04)

/etc/X11/xinit/xinitrc.d/setup contains:
xrandr --fbmm 387x218 --fb 2560x1440 --output VGA1 --mode 1920x1440 --panning 2560x1440

Panning mouse out of initial CRTC desktop space into virtual desktop space and back in
some installations causes crash, in others not. Can someone here tell if this is a kernel,
server or other issue and not a driver issue from a look at Xorg.0.log? My suspicion is
kernel as primary if not sole.

Successes:
Rawhide, kernel 4.1.0-0.rc7, driver 2.99.917, server 1.17.1, KDE5
Mageia 5, kernel 3.19.8, driver 2.99.917, server 1.16.4, KDE4
openSUSE 13.1, kernel 3.12.39, driver 2.99.917, server 1.15.99.903, KDE3
openSUSE 13.2, kernel 3.16.7, driver 2.99.917, server 1.17.1, KDE3

Failures:
Fedora 21, kernel 4.0.4, driver 2.99.916, server 1.16.3, KDE4
Tumbleweed, kernel 4.0.4, driver 2.99.917, server 1.17.1, KDE3

Skipped testing due to unrelated issue (refuses mode 1920x1440 that xrandr claims
available, uses 1600x1200 instead, and no crashing):
Fedora 22, kernel 4.0.5, driver 2.99.917, server 1.17.1, KDE5

Logs:
http://fm.no-ip.com/Tmp/Linux/Xorg/Igfx/panfault/
-- 
"The wise are known for their understanding, and pleasant
words are persuasive." Proverbs 16:21 (New Living Translation)

 Team OS/2 ** Reg. Linux User #211409 ** a11y rocks!

Felix Miata  ***  http://fm.no-ip.com/