Comment # 3 on bug 110679 from Andrew Randrianasulu

using those two command lines

XVMC_VL=1 LIBVA_MESSAGING_LEVEL=2 LIBVA_TRACE=/dev/shm/log_file ./ffmpeg
-vaapi_device /dev/dri/renderD128 -benchmark -c:v libdav1d   -i
/mnt/sdb1/Stream2_AV1_720p_3.2mbps.webm  -vf
format=nv12,hwupload,scale_vaapi=w=3840:h=2160:mode=hq,hwdownload,format=yuv420p
-map 0:v:0  /dev/shm/1.avi

---------working--------

 LIBVA_MESSAGING_LEVEL=2 LIBVA_TRACE=/dev/shm/log_file_no_vl ./ffmpeg
-vaapi_device /dev/dri/renderD128 -benchmark -c:v libdav1d   -i
/mnt/sdb1/Stream2_AV1_720p_3.2mbps.webm  -vf
format=nv12,hwupload,scale_vaapi=w=3840:h=2160:mode=hq,hwdownload,format=yuv420p
-map 0:v:0  /dev/shm/1.avi

--------failing----------

I got two trace files, will attach them.