@tatsu I'd be massively keen to hear if @foodlfg has any good ideas!

I don't think Proton experimental has ever worked for me. Generating a run file with PROTON_NO_ESYNC=1 PROTON_DUMP_DEBUG_COMMANDS=1 %command% I get the the contents:

#!/bin/bash
#Run game or given command in environment

cd "/home/chris/.local/share/Steam/steamapps/common/Supreme Commander Forged Alliance"
DEF_CMD=("/home/chris/.local/share/Steam/steamapps/common/Supreme Commander Forged Alliance/bin/SupremeCommander.exe")
PATH="/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/bin/:/usr/bin:/bin" \
	TERM="xterm" \
	WINEDEBUG="-all" \
	WINEDLLPATH="/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/lib64//wine:/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/lib//wine" \
	LD_LIBRARY_PATH="/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/lib64/:/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/lib/:/overrides/lib/x86_64-linux-gnu:/overrides/lib/i386-linux-gnu" \
	WINEPREFIX="/home/chris/.local/share/Steam/steamapps/compatdata/9420/pfx/" \
	SteamGameId="9420" \
	SteamAppId="9420" \
	WINEDLLOVERRIDES="steam.exe=b;dotnetfx35.exe=b;dxvk_config=n;d3d11=n;d3d10=n;d3d10core=n;d3d10_1=n;d3d9=n" \
	STEAM_COMPAT_CLIENT_INSTALL_PATH="/home/chris/.local/share/Steam" \
	WINE_LARGE_ADDRESS_AWARE="1" \
	GST_PLUGIN_SYSTEM_PATH_1_0="/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/lib64/gstreamer-1.0:/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/lib/gstreamer-1.0" \
	WINE_GST_REGISTRY_DIR="/home/chris/.local/share/Steam/steamapps/compatdata/9420/gstreamer-1.0/" \
	MEDIACONV_AUDIO_DUMP_FILE="/home/chris/.local/share/Steam/steamapps/shadercache/9420/fozmediav1/audio.foz" \
	MEDIACONV_AUDIO_TRANSCODED_FILE="/home/chris/.local/share/Steam/steamapps/shadercache/9420/swarm/transcoded_audio.foz" \
	MEDIACONV_VIDEO_DUMP_FILE="/home/chris/.local/share/Steam/steamapps/shadercache/9420/fozmediav1/video.foz" \
	MEDIACONV_VIDEO_TRANSCODED_FILE="/home/chris/.local/share/Steam/steamapps/shadercache/9420/swarm/transcoded_video.foz" \
	"/home/chris/.local/share/Steam/steamapps/common/Proton - Experimental/dist/bin/wine" steam.exe "${@:-${DEF_CMD[@]}}"

This launches fine in Steam but when I configure FAF to launch using this file it crashes without launching FA properly:

2021-03-11 20:08:55.013  INFO 60023 --- [     Thread-144] c.f.client.fa.ForgedAllianceService      : Starting Forged Alliance with command: [/home/chris/personal/faf/downlords-faf-client-1.4.2/run3, /home/chris/.faforever/bin/ForgedAlliance.exe, /init, init.lua, /nobugreport, /log, /home/chris/.faforever/logs/game_14048771.log, /gpgnet, 127.0.0.1:42855, /mean, 1262.54, /deviation, 104.661, /savereplay, gpgnet://127.0.0.1:45845/14048771/SlowHands89.SCFAreplay, /country, GB, /numgames, 404] in directory: /home/chris/.faforever/bin
wineserver: using server-side synchronization.
wine: RLIMIT_NICE is <= 20, unable to use setpriority safely
wine: Using RTKit to control niceness in the [-15,15] range
Setting breakpad minidump AppID = 9420
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561197969765596 [API loaded no]
INTEL-MESA: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

INTEL-MESA: warning: Performance support disabled, consider sysctl dev.i915.perf_stream_paranoid=0

2021-03-11 20:08:57.141  INFO 60023 --- [ool-3-thread-11] com.faforever.client.game.GameService    : Forged Alliance terminated with exit code 0
2021-03-11 20:08:57.466  INFO 60023 --- [     Thread-144] c.f.client.fa.relay.ice.IceAdapterImpl   : ICE adapter terminated normally

The game log file never gets created, the ICE log seems to just be an EOF exception when it can't talk to FA and then shuts down. Any other logs I should be looking at?

I've also tried generating a run file using the args you mentioned and noticed the only difference seems to be that yours generates a run file without the WINEFSYNC="1" \ entry (which also doesn't make any different, Experimental still fails to launch).

game_14043116.log
Here is a log from another game resulting in a crash, which this time didn't really seem to coincide with anything specific. Couldn't copy the exception details this time as the pop-up for that become unresponsive when I tried to copy it.

Having had a few months of really pretty stable playing on Linux, the last couple of weeks have been hellish. I've posted elsewhere but am getting pretty fed up now. I can't identify what's changed, unless it's something to do with a Proton update that Steam did.

I'm basically getting crashes with memory access exceptions, usually 30+ minutes into games but I've just had a game that crashed even sooner than that.

game_14043116.log - This is the log from the most recent crash I had but nothing jumps out for me. If there's something else I could share that might help, please let me know!

Spec:

• i7-10750H
• 1650 Ti (Nvidia driver 450.102.04)
• 32gb ram
• Ubuntu 20.04 (Proton 5.0-10)
• Client version 1.4.2

I've recently started having problems more frequently with crashing out, usually 30+ minutes into the game, with a EXCEPTION_ACCESS_VIOLATION.

For example:

EXCEPTION_ACCESS_VIOLATION (0xc0000005) at address 0x0095815d
    attempted to read memory at 0x0000008f

This seems to have got dramatically worse over the last couple of weeks but I haven't been able to pinpoint it exactly, or anything that particularly changed around then. For games that don't crash, they often will upon loading the score screen if they've been longer than half an hour or so. Shorter games don't crash either during or at the score screen.

Anecdotally, there seems to be coincidence with fairly high stakes moments in the game - e.g., I play DualGap a lot and would guess it has happened multiple times when there are large bombing runs on a T4 arti.

Spec:

• i7-10750H
• 1650 Ti (Nvidia driver 450.102.04)
• 32gb ram
• Ubuntu 20.04 (Proton 5.0-10)
• Client version 1.4.2

Recent exception trace upon crash