[Bug 87780] [GM45] relocation error in 3.14 -- causes hang with -intel-2.99.917

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87780

--- Comment #8 from andreas.sturmlechner at gmail.com ---
Some things I can tell now:

Kernel versions that hang with >=xf86-video-intel-2.99.917: 3.4.106, 3.10.53
What works: 3.14.33, 3.17.4

Trying to apply the patch over 3.14.33 (only to check for backportability)
breaks build, and the same happens for 3.4.106:

drivers/char/agp/intel-gtt.c: In function ‘i810_write_entry’:
drivers/char/agp/intel-gtt.c:331:2: error: implicit declaration of function
‘writel_relaxed’

If I remove the `writel_relaxed` hunks to make the patch succeed, 3.4.106 still
hangs. But it seems that patch isn't the real fix anyway - it must be something
between 3.10 and 3.14.

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