[D3D9] SpellForce 2 - Anniversary Edition: freezes when a match starts

[ranplayer]

SpellForce 2 completely freezes when a match starts (Skirmish or Campaign) with DXVK (Proton 11 branch). No issues with WineD3D.

Software information

• Name of the game: SpellForce 2: Anniversary Edition
• Settings: maxed out at 1440p/120hz

System information

• GPU: RX 6700 XT
• Driver: Mesa 26.1.8
• Wine version: Proton 11.0-2 and Experimental (2026-08-28)
• DXVK version: Proton's branch

Apitrace file(s)

• API trace (I wasn't able to reach in game though, it froze on the Skirmish loading screen)

Log files

Please attach Proton or Wine logs as a text file:

• Proton logs: steam-39550.tar.gz

[doitsujin]

Does Proton 10 work?

No idea what to make of the log, something is segfaulting over and over but ofc it doesn't tell us what.

[ranplayer]

It does... just tested it here.

[WinterSnowfall]

57ec2b2dc8fb2ab473b29dbc248a795baaf81283 is the first bad commit
commit 57ec2b2dc8fb2ab473b29dbc248a795baaf81283
Author: Robin Kertels <robin.kertels@gmail.com>
Date:   Thu Nov 27 21:32:11 2025 +0100

    [d3d9] Port over discard allocation throttling to D3D9
    
    Nicer solution for games running out of address space with
    direct buffer mapping than force disabling direct buffer mapping.

 src/d3d9/d3d9_device.cpp | 26 +++++++++++++++++++++-----
 src/d3d9/d3d9_device.h   |  7 ++++++-
 2 files changed, 27 insertions(+), 6 deletions(-)