This is a note to let you know that I've just added the patch titled
drm/amdgpu: fix a vm_flush fence leak
to the 4.8-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-amdgpu-fix-a-vm_flush-fence-leak.patch
and it can be found in the queue-4.8 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 2d7c17be00e0dce3bc1a092a2c277a9f86c69ca9 Mon Sep 17 00:00:00 2001
From: Grazvydas Ignotas <notasas@xxxxxxxxx>
Date: Sun, 23 Oct 2016 21:31:45 +0300
Subject: drm/amdgpu: fix a vm_flush fence leak
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From: Grazvydas Ignotas <notasas@xxxxxxxxx>
commit 2d7c17be00e0dce3bc1a092a2c277a9f86c69ca9 upstream.
Looks like .last_flush reference is left at teardown.
Leak reported by CONFIG_SLUB_DEBUG.
Fixes: 41d9eb2c5a2a ("drm/amdgpu: add a fence after the VM flush")
Reviewed-by: Chunming Zhou <david1.zhou@xxxxxxx>
Reviewed-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Grazvydas Ignotas <notasas@xxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1654,5 +1654,6 @@ void amdgpu_vm_manager_fini(struct amdgp
fence_put(adev->vm_manager.ids[i].first);
amdgpu_sync_free(&adev->vm_manager.ids[i].active);
fence_put(id->flushed_updates);
+ fence_put(id->last_flush);
}
}
Patches currently in stable-queue which might be from notasas@xxxxxxxxx are
queue-4.8/drm-amdgpu-fix-fence-slab-teardown.patch
queue-4.8/drm-amdgpu-fix-sched-fence-slab-teardown.patch
queue-4.8/drm-amd-fix-scheduler-fence-teardown-order-v2.patch
queue-4.8/drm-amdgpu-fix-a-vm_flush-fence-leak.patch
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