Frequent feezing with 1.1.7

[SilentException]

What version of melonDS DS are you using?

1.1.7

Does the problem happen in standalone melonDS?

I don't know.

What happened?

Updated to core v1.1.7 and already had 3 application freezes. Using Retroarch 1.19.1 Flatpak, the application froze completely until i killed it manually. I only play Mario Kart DS and once it froze in the menu (minutes after starting the game), and two times in game, after second and third race.
I have looked for any logs to share them here but cannot find them in Retroarch flatpak folder, logs folder is empty.

What should've happened instead?

No freezes.

Which platforms do you see the problem on?

• Windows
• macOS
• Linux
• Android
• iOS
• tvOS
• Other (specify below)

Which versions of the OS?

Steam OS 3.5.19

Which libretro frontend are you using?

Retroarch 1.19.1 Flatpak

Terms

• I agree to follow the code of conduct.
• I understand that melonDS DS is not developed or maintained by the authors of melonDS.
• I understand that this form is for reporting bugs, not for requesting help.
• I understand that the author develops this core in his spare time, and that he is under no obligation to respond to this bug report.

[JesseTG]

Do you have these logging options set?

[SilentException]

Will check when possible.
Earlier today I was looking at the options and noticed that Rewind was turned ON for the melonds-DS core override. I don't even remember turning it on (it is off in Retroarch cfg) but after I turned it off I noticed better performance in game and also had no crashes since. I'm hoping it is not a fluke but can rewind really affect the core so negatively?

[JesseTG]

Will check when possible. Earlier today I was looking at the options and noticed that Rewind was turned ON for the melonds-DS core override. I don't even remember turning it on (it is off in Retroarch cfg) but after I turned it off I noticed better performance in game and also had no crashes since. I'm hoping it is not a fluke but can rewind really affect the core so negatively?

Maybe. Rewind works by taking a lot of savestates; by default RetroArch takes one per frame, but I prefer to lower that rate to one per six frames.

Could you please answer the following:

1. Can I see your settings for melonDS DS? Core options and any overrides you have.
2. Does this issue occur if you disable the software renderer's threading? What about if you use OpenGL rendering?

[SilentException]

melonDS DS.zip
Here are the options and overrides. I haven't had rewind_enable = "true" after I disabled rewind but now I enabled it back to see if freezing will occur. I use OpenGL since SW doesn't have upscaling :)

I can tell for sure that Rewind has big performance impact and perhaps #215 can be attributed to that. I checked and old core didn't have rewind enabled.
As for freezes, after I enabled rewind I still haven't had any (yet?). I now have logs enabled so will provide them if it happens.