00:00 <digetx> cyndis: (EE) gpu/tegra_stream_v3.c:152/tegra_stream_submit_v3(): drm_tegra_job_submit_v3() failed -1

00:00 <digetx> errno=-1 (Operation not permitted)CHANNEL_SUBMIT failed errno=1

00:00 <digetx> https://dpaste.com/3CCPW4RJ3

00:01 <digetx> it works for awhile and then starts to fail with that

00:05 <digetx> the performance is suspiciously bad, I'm not paying attention to perf for now, but could be a related problem

01:42 <digetx> I was running lxde that is very slow and it should be very fast

11:26 <cyndis> digetx: any tips on how to reproduce? just run lxde?

14:06 <digetx> cyndis: yes, you should notice immediately that something is wrong in comparison to v1 uapi; I was running it on T20, hence assume iommu=disabled

14:08 <cyndis> ack

14:08 <digetx> I was starting lxde, running mpv and moving video around for couple seconds, those errors appeared about minute later, default lxde has tray icons that periodically draw cpu load graph and updating clock time

14:09 <digetx> running video should be unnecessary

14:11 <digetx> I may take a closer look later today

14:16 <cyndis> i'm not super confident about the buffer unmapping on xf86-video-opentegra side, could be it's failing to unmap unneeded buffers

14:17 <cyndis> and accumulating a lot of them

14:17 <cyndis> though would expect to get an -ENOMEM then I guess

14:17 <cyndis> -EPERM sounds like a job timed out and the syncpoint was locked

14:19 <digetx> it could be a userspace problem, I haven't looked at the code much yet

14:20 <digetx> for now I want to get maximum things working even unoptimally so I could review it more easily