Proton: Crashing with esync enabled

Created on 22 Aug 2018 · 3Comments · Source: ValveSoftware/Proton

Phantom Doctrine (UE4) crashes on startup with esync enabled. With it disabled using PROTON_NO_ESYNC in user_settings.py, the game starts up fine. (however there are still some issues)

In terminal while crashing:

eventfd: Too many open files
esync: write: Bad file descriptor
Protocol error: process 0028: sendmsg: Bad file descriptor

Source

ghost

Most helpful comment

Solution: increase systemd DefaultLimitNOFILE as explained here

ghost on 22 Aug 2018

🚀1 ❤1 🎉1 👍1

All 3 comments

Solution: increase systemd DefaultLimitNOFILE as explained here

ghost on 22 Aug 2018

🚀1 ❤1 🎉1 👍1

I think that upon installation steam should increase the FD limit.

Guy1524 on 22 Aug 2018

👎4

Hello @DougTy, @Guy1524, increasing FD limits is a privileged operation requiring root permission and most likely will not change any time in the future. This is also documented at https://github.com/ValveSoftware/Proton/blob/proton_3.7/PREREQS.md#fd-limit-requirements.