Re: Linux 4.1 WARNING in drm_ioctl.c

On Tue, Jun 23, 2015 at 08:27:13AM +0100, Daniel Stone wrote:

Hi,

On 23 June 2015 at 07:39, Daniel Vetter daniel@ffwll.ch wrote:

...

Which drm driver are you using? I didn't spot anything in your module list but might have missed it. Booting with drm.debug=0xe and grabbing dmesg will tell us for sure.

That'd be vgem.

If so then the below diff should help. -Daniel diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index 7a207ca547be..b491fb32cddb 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -328,6 +328,8 @@ static int __init vgem_init(void) goto out; }

+ drm_dev_set_unique(drm, "vgem"); + ret = drm_dev_register(vgem_device, 0);

if (ret)