Matthieu Crapet

• Distro / Kernel release:                           Debian GNU/Linux 11 (bullseye) / 5.10.0-8-amd64
• Mono / .NET package version:               mono-complete (6.12.0.122 from www.mono-project.com)
• Graphics driver version:                        Mesa 20.3.5-1 [Intel HD Graphics 6000 (BDW GT3) (0x1626)]
• Works for client, mp server or both:     Client, server untested
• Installation method used:                       tar zxvf vs_archive_*.tar.gz (no need to use install.sh script)
• Hacks (if needed):                                   crash due to memory issue, see below
• Vintage version:                                      1.16.4

For mono installation I followed:
https://www.mono-project.com/download/stable/#download-lin-debian
(took Debian 10 settings, I'm on Debian 11 but that worked fine)

After launching run.sh, I experienced systematic crashes when joining a Multiplayer game.
In output traces I could see:
* Assertion at lock-free-alloc.c:145, condition `sb_header' not met, function:alloc_sb, Failed to allocate memory for the lock free allocator

Found solution here:
https://github.com/anegostudios/VintageStory-Issues/issues/1742
https://github.com/mono/mono/issues/12947

As root user:

# sysctl vm.max_map_count
vm.max_map_count = 65530
# sysctl -w vm.max_map_count=262144
vm.max_map_count = 262144
# sysctl vm.max_map_count
vm.max_map_count = 262144

So increasing soft limit from 65530 to 262144 fixed my issue.

Note: My PC has 16GB physical RAM + 16GB swap configured