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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2015-03-27 12:02:10 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-03-30 16:59:47 +0200 |
| commit | ee73c61c0af590ff2c03fb83e68a5664bd8b38d0 (patch) | |
| tree | ba7ebcff86c1bdd4e99dffb6f6a94a44d8df040a /fs/aio.c | |
| parent | Linux 4.0-rc6 (diff) | |
| download | linux-ee73c61c0af590ff2c03fb83e68a5664bd8b38d0.tar.xz linux-ee73c61c0af590ff2c03fb83e68a5664bd8b38d0.zip | |
drm/i915: Skip allocating shadow batch for 0-length batches
Since
commit 17cabf571e50677d980e9ab2a43c5f11213003ae
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date: Wed Jan 14 11:20:57 2015 +0000
drm/i915: Trim the command parser allocations
we may then try to allocate a zero-sized object and attempt to extract
its pages. Understandably this fails.
Note that the real offender seems to be
commit b9ffd80ed659c559152c042e74741f4f60cac691
Author: Brad Volkin <bradley.d.volkin@intel.com>
Date: Thu Dec 11 12:13:10 2014 -0800
drm/i915: Use batch length instead of object size in command parser
Testcase: igt/gem_exec_nop #ivb,byt,hsw
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[cherry picked from commit 743e78c1d726d875b98ff9689cc77c4d3d5d9ae2
from drm-intel-next because 4.0 seems to be affected by this too,
despite that the obvious culprit is definitely not in 4.0. Whatever,
if fixes a bug.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'fs/aio.c')
0 files changed, 0 insertions, 0 deletions