From 045e769ab69ce94dedbcdcfd46c2578b385c2986 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sun, 7 Nov 2010 09:18:22 +0000 Subject: [PATCH] drm/i915: Handle GPU hangs during fault gracefully. Instead of killing the process, just return no page found and reschedule the process giving the GPU some time to (hopefully) recover. Signed-off-by: Chris Wilson --- drivers/gpu/drm/i915/i915_gem.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 47c665eeaf17..7c91bf2bbdfd 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1340,11 +1340,12 @@ unlock: mutex_unlock(&dev->struct_mutex); switch (ret) { + case -EAGAIN: + set_need_resched(); case 0: case -ERESTARTSYS: return VM_FAULT_NOPAGE; case -ENOMEM: - case -EAGAIN: return VM_FAULT_OOM; default: return VM_FAULT_SIGBUS; -- 2.39.2