In this case the kernel is the "messenger" for the page fault.  This is
more likely to be a mesa or application issue than a kernel issue.

Can you please raise a ticket to the upstream mesa bug tracker?

** Also affects: mesa (Ubuntu)
   Importance: Undecided
       Status: New

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  amdgpu: [gfxhub] page fault when switching a video to or from

Status in linux package in Ubuntu:
Status in mesa package in Ubuntu:

Bug description:

  Switching a video to or from fullscreen freezes the screen for around
  10 seconds. This happens with Totem as well as VLC so its not related
  to a specific app.

  Additional observations:

  - The issue seems to be connected to the video's bitrate. With low
  bitrate videos I cannot trigger the freeze. However, videos with high
  bandwidth trigger the freeze reliably.

  Ubuntu 23.10 up to date as of 28.09.2023
  AMD Ryzen 7 PRO 6850U
  Kernel 6.5.0-5-generic
  Grub configured with: amdgpu.vm_update_mode=3

  Syslog shows:

  2023-09-28T20:02:29.803955+02:00 kernel: [27003.800898] amdgpu
  0000:04:00.0: amdgpu: [gfxhub] page fault (src_id:0 ring:24 vmid:2
  pasid:32771, for process Xwayland pid 2113 thread Xwayland:cs0 pid

  2023-09-28T20:02:39.975854+02:00 kernel: [27013.972772]
  [drm:amdgpu_job_timedout [amdgpu]] *ERROR* ring gfx_0.0.0 timeout, but
  soft recovered

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