This is a note to let you know that I've just added the patch titled drm/i915/gvt: do not deliver a workload if its creation fails to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: drm-i915-gvt-do-not-deliver-a-workload-if-its-creation-fails.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From dade58ed5af6365ac50ff4259c2a0bf31219e285 Mon Sep 17 00:00:00 2001 From: Yan Zhao <yan.y.zhao@xxxxxxxxx> Date: Wed, 27 Mar 2019 00:54:51 -0400 Subject: drm/i915/gvt: do not deliver a workload if its creation fails From: Yan Zhao <yan.y.zhao@xxxxxxxxx> commit dade58ed5af6365ac50ff4259c2a0bf31219e285 upstream. in workload creation routine, if any failure occurs, do not queue this workload for delivery. if this failure is fatal, enter into failsafe mode. Fixes: 6d76303553ba ("drm/i915/gvt: Move common vGPU workload creation into scheduler.c") Cc: stable@xxxxxxxxxxxxxxx #4.19+ Cc: zhenyuw@xxxxxxxxxxxxxxx Signed-off-by: Yan Zhao <yan.y.zhao@xxxxxxxxx> Signed-off-by: Zhenyu Wang <zhenyuw@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/i915/gvt/scheduler.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -1389,8 +1389,9 @@ intel_vgpu_create_workload(struct intel_ intel_runtime_pm_put(dev_priv); } - if (ret && (vgpu_is_vm_unhealthy(ret))) { - enter_failsafe_mode(vgpu, GVT_FAILSAFE_GUEST_ERR); + if (ret) { + if (vgpu_is_vm_unhealthy(ret)) + enter_failsafe_mode(vgpu, GVT_FAILSAFE_GUEST_ERR); intel_vgpu_destroy_workload(workload); return ERR_PTR(ret); } Patches currently in stable-queue which might be from yan.y.zhao@xxxxxxxxx are queue-4.19/drm-i915-gvt-do-not-let-pin-count-of-shadow-mm-go-ne.patch queue-4.19/drm-i915-gvt-do-not-deliver-a-workload-if-its-creation-fails.patch