tree: git://anongit.freedesktop.org/drm-intel drm-intel-next-queued
head: f7d2323c181ed5a2596494b860a99d567fd3e6cd
commit: 0ca36d78391dc97b7d3e3d26e4518e30f3e88c16 [126/130] drm/i915/bdw:
collect semaphore error state
drivers/gpu/drm/i915/i915_gpu_error.c:784 gen8_record_semaphore_state() error:
buffer overflow 'ering->semaphore_mboxes' 4 <= 4
drivers/gpu/drm/i915/i915_gpu_error.c:785 gen8_record_semaphore_state() error:
buffer overflow 'ring->semaphore.sync_seqno' 4 <= 4
drivers/gpu/drm/i915/i915_gpu_error.c:785 gen8_record_semaphore_state() error:
buffer overflow 'ering->semaphore_seqno' 4 <= 4
git remote add drm-intel git://anongit.freedesktop.org/drm-intel
git remote update drm-intel
git checkout 0ca36d78391dc97b7d3e3d26e4518e30f3e88c16
vim +784 drivers/gpu/drm/i915/i915_gpu_error.c
0ca36d78 Ben Widawsky 2014-06-30 778
0ca36d78 Ben Widawsky 2014-06-30 779 for_each_ring(useless, dev_priv, i) {
^^^^^^^^^^^^^
This loop goes to i < I915_NUM_RINGS but ->semaphore_mboxes[] has
I915_NUM_RINGS - 1 elements.
0ca36d78 Ben Widawsky 2014-06-30 780 u16 signal_offset =
0ca36d78 Ben Widawsky 2014-06-30 781
(GEN8_SIGNAL_OFFSET(ring, i) & PAGE_MASK) / 4;
0ca36d78 Ben Widawsky 2014-06-30 782 u32 *tmp =
error->semaphore_obj->pages[0];
0ca36d78 Ben Widawsky 2014-06-30 783
0ca36d78 Ben Widawsky 2014-06-30 @784 ering->semaphore_mboxes[i] =
tmp[signal_offset];
0ca36d78 Ben Widawsky 2014-06-30 @785 ering->semaphore_seqno[i] =
ring->semaphore.sync_seqno[i];
0ca36d78 Ben Widawsky 2014-06-30 786 }
0ca36d78 Ben Widawsky 2014-06-30 787 }
0ca36d78 Ben Widawsky 2014-06-30 788
---
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