This is a note to let you know that I've just added the patch titled drm/cirrus: Invalidate page tables when pinning a BO to the 3.10-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-cirrus-invalidate-page-tables-when-pinning-a-bo.patch and it can be found in the queue-3.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 109a51598869a39fdcec2d49672a9a39b6d89481 Mon Sep 17 00:00:00 2001 From: Michal Srb <msrb@xxxxxxxx> Date: Tue, 6 Aug 2013 15:26:50 +0200 Subject: drm/cirrus: Invalidate page tables when pinning a BO From: Michal Srb <msrb@xxxxxxxx> commit 109a51598869a39fdcec2d49672a9a39b6d89481 upstream. This is a cirrus version of Egbert Eich's patch for mgag200. Without bo.bdev->dev_mapping set, the ttm_bo_unmap_virtual_locked called from ttm_bo_handle_move_mem returns with no effect. If any application accessed the memory before it was moved, it will access wrong memory next time. This causes crashes when changing resolution down. Signed-off-by: Michal Srb <msrb@xxxxxxxx> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/gpu/drm/cirrus/cirrus_ttm.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/gpu/drm/cirrus/cirrus_ttm.c +++ b/drivers/gpu/drm/cirrus/cirrus_ttm.c @@ -353,6 +353,7 @@ int cirrus_bo_create(struct drm_device * cirrusbo->gem.driver_private = NULL; cirrusbo->bo.bdev = &cirrus->ttm.bdev; + cirrusbo->bo.bdev->dev_mapping = dev->dev_mapping; cirrus_ttm_placement(cirrusbo, TTM_PL_FLAG_VRAM | TTM_PL_FLAG_SYSTEM); Patches currently in stable-queue which might be from msrb@xxxxxxxx are queue-3.10/drm-cirrus-invalidate-page-tables-when-pinning-a-bo.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html