[Bug 99107] [SNB] BUG NULL pointer deref in gen6_ppgtt_insert_entries+0x154/0x1e0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=99107

--- Comment #15 from Chris Wilson <chris at chris-wilson.co.uk> ---
Ah, not just a page:

[   46.684240] i915_gem_pwrite_ioctl(0 + fffffffe / 100000000), pages? no
[   48.062115] i915_gem_pwrite_ioctl(0 + fffffffc / 100000000), pages? no
[   49.435955] i915_gem_pwrite_ioctl(0 + fffffffd / 100000000), pages? no
[   50.808551] i915_gem_pwrite_ioctl(0 + fffffffd / 100000000), pages? no
[   68.478379] i915_gem_pwrite_ioctl(0 + fffffffe / 100000000), pages? no
[  146.486648] i915_gem_pwrite_ioctl(0 + dcc / 1000), pages? no
[  146.535395] i915_gem_pwrite_ioctl(0 + 5 / 1000), pages? yes
[  146.535441] i915_gem_pwrite_ioctl(0 + ffffffff / 100000000), pages? no
[  148.969021] i915_gem_pwrite_ioctl(0 + fffffffd / 100000000), pages? no
[  150.438061] i915_gem_pwrite_ioctl(0 + fffffffd / 100000000), pages? no
[  151.852695] i915_gem_pwrite_ioctl(0 + fffffffd / 100000000), pages? no
[  169.815979] i915_gem_pwrite_ioctl(0 + fffffffd / 100000000), pages? no

4GiB at a time.

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