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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - [SNB] BUG NULL pointer deref in gen6_ppgtt_insert_entries+0x154/0x1e0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99107#c15">Comment # 15</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - [SNB] BUG NULL pointer deref in gen6_ppgtt_insert_entries+0x154/0x1e0"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99107">bug 99107</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>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.</pre>
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