Public bug reported:

Under some usage conditions on Ubuntu 20.04 I get an almost complete system 
freeze and after some minutes I get this issuing a dmesg command: "[TTM] Buffer 
eviction failed".
I can always reproduce the problem using Streetview function inside 
maps.google.com using Firefox (77.0.1).
My kernel version is 5.4.0-38 and my graphic card is an old Nvidia

01:00.0 VGA compatible controller: NVIDIA Corporation G86M [GeForce
8400M GS] (rev a1

When I switch to closed source Nvidia proprietary driver (ver. 340.108)
I have no issues.

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: focal

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https://bugs.launchpad.net/bugs/1884726

Title:
  [TTM] Buffer eviction failed

Status in linux package in Ubuntu:
  New

Bug description:
  Under some usage conditions on Ubuntu 20.04 I get an almost complete system 
freeze and after some minutes I get this issuing a dmesg command: "[TTM] Buffer 
eviction failed".
  I can always reproduce the problem using Streetview function inside 
maps.google.com using Firefox (77.0.1).
  My kernel version is 5.4.0-38 and my graphic card is an old Nvidia

  01:00.0 VGA compatible controller: NVIDIA Corporation G86M [GeForce
  8400M GS] (rev a1

  When I switch to closed source Nvidia proprietary driver (ver.
  340.108) I have no issues.

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https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1884726/+subscriptions

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