https://bugs.freedesktop.org/show_bug.cgi?id=101319

Bug ID: 101319 Summary: Tonga DC + UVD [drm:fill_plane_attributes [amdgpu]] *ERROR* Unable to reserve buffer Product: DRI Version: DRI git Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: DRM/AMDgpu Assignee: dri-devel@lists.freedesktop.org Reporter: adf.lists@gmail.com

R9285 Tonga it seems that on various agd5f DC kernels using

mpv -fs --hwdec=vdpau <a 2160p60 very high bitrate video>

screen is 1920x1080 DVI-D

will sometimes produces logging with a few

[drm:fill_plane_attributes [amdgpu]] *ERROR* Unable to reserve buffer

grepping kernel log shows this is not new + only seems to happen with a DC kernel (I spend more time in non DC kernels and have no instances with those).

First record April 3rd, but then it doesn't always happen and I don't always run that test so it could have started earlier.

With just a few of the errors no bad effects noticed.

Today, with current agd5f amd-staging-4.11 I got a display lock with logging below, I can't reproduce the lock, but can get a few of the messages to show.

Jun 6 17:48:16 ph4 kernel: [drm:fill_plane_attributes [amdgpu]] *ERROR* Unable to reserve buffer Jun 6 17:48:47 ph4 last message repeated 6136 times Jun 6 17:49:33 ph4 last message repeated 9208 times Jun 6 17:49:33 ph4 kernel: sysrq: SysRq : Emergency Sync Jun 6 17:49:33 ph4 kernel: Emergency Sync complete Jun 6 17:49:33 ph4 kernel: [drm:fill_plane_attributes [amdgpu]] *ERROR* Unable to reserve buffer Jun 6 17:49:34 ph4 last message repeated 306 times Jun 6 17:49:34 ph4 kernel: sysrq: SysRq : Emergency Remount R/O Jun 6 17:49:34 ph4 kernel: [drm:fill_plane_attributes [amdgpu]] *ERROR* Unable to reserve buffer