[Bug 2057792] Re: Some Games are crashing linked to a vm_max_map_count too low

[vadim]

I suggest including 2147483642 not in LTS, but in Ubuntu 24.10 as an
experiment. Because I noticed an unpleasant detail. For example, there
is a game "Don't Starve," I know there is a native version, but this is
just as an experiment with Proton. If you launch the Proton version, you
will receive a message when vm.max_map_count = 1048576:
"steam_app_218740" is not responding. You may choose to wait a short
while for it to continue or force the app to quit entirely. But when
vm.max_map_count = 2147483642, there are no problems, everything loads
instantly.

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Title:
  Some Games are crashing linked to a vm_max_map_count too low

Status in gamemode package in Ubuntu:
  Confirmed
Status in linux package in Ubuntu:
  Won't Fix
Status in procps package in Ubuntu:
  Fix Committed

Bug description:
  Hello there,

  I submit this request to improve the gaming experience in ubuntu for all users. 
  Today, Hogwarts Legacy, Star Citizen and few more games are crashing or just not starting because the vm_max_map_count is locked at 65530. If we change this value to a value > 200000, all games are working well and there is no bug linked to maps. 

  Some others distribution like Fedora or Pop OS, have already made the
  change few month before.

  It's time to Ubuntu to makes the change also.

  Thanks in advance for applying this request.

  How to make this change :

  One file to modify : 
  /etc/sysctl.conf
  Add this line :
  vm.max_map_count=2147483642
  Save
  Reboot and enjoy

  Best Regards
  Vinceff

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