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Dirt ShowDown segmentation fault
Koopacabras Mar 6, 2022
hi there. I don't know how to debug/fix this. I get segmentation fault on Dirt Showdown.
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tuubi Mar 6, 2022
Seeing as the Linux port runs Windows binaries on an ancient version of VP's Wine-like eON wrapper, your best bet might just be running it with Proton instead. This is probably not the solution you wanted, but it's definitely the easiest one.
dubigrasu Mar 6, 2022
Quoting: Koopacabrashi there. I don't know how to debug/fix this. I get segmentation fault on Dirt Showdown.
Are you running a 5.16 kernel by chance?
Koopacabras Mar 6, 2022
Quoting: dubigrasu
Quoting: Koopacabrashi there. I don't know how to debug/fix this. I get segmentation fault on Dirt Showdown.
Are you running a 5.16 kernel by chance?

yes!!
Koopacabras Mar 6, 2022
Quoting: tuubiSeeing as the Linux port runs Windows binaries on an ancient version of VP's Wine-like eON wrapper, your best bet might just be running it with Proton instead. This is probably not the solution you wanted, but it's definitely the easiest one.

problem is that Proton doesn't connect to Race.net and my saves are wiped (but that could be worked out tho)
Koopacabras Mar 6, 2022
Quoting: dubigrasu
Quoting: Koopacabrashi there. I don't know how to debug/fix this. I get segmentation fault on Dirt Showdown.
Are you running a 5.16 kernel by chance?
I'll be damned it's the kernel. is this some kind of kernel bug? with 5.15 it works
dubigrasu Mar 6, 2022
Quoting: Koopacabras
Quoting: dubigrasu
Quoting: Koopacabrashi there. I don't know how to debug/fix this. I get segmentation fault on Dirt Showdown.
Are you running a 5.16 kernel by chance?

yes!!
There is a regression in 5.16 that causes these segmentation faults with VP ports and probably some others.
A patch was proposed but hasn't been implemented yet, it maybe be ready for 5.17 or sooner.
If you can, install a 5.15 kernel, for example both Xanmod and Liquorix have stable 5.15 versions available.
Edit, ha you already did :)

Last edited by dubigrasu on 6 March 2022 at 12:17 pm UTC
Koopacabras Mar 6, 2022
can you point me to the kernel bug so I can bookmark it? then I can know if a patch has been released asap.
dubigrasu Mar 6, 2022
It was initially discussed here: https://marc.info/?l=linux-mm&m=164335825322850&w=2
Koopacabras Mar 6, 2022
I think the patch was merged to git queued for 5.16.13.
Spoiler, click me

https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/patch/?id=3d359c0fb8fe9887c9b627bf5dd046e7a7c60d45

I will patch my kernel if it's fine for merging into official git stable, then it's good enough for me. I will report back.

EDIT: yes that patch fixes the issue.

Last edited by Koopacabras on 6 March 2022 at 2:20 pm UTC
dubigrasu Mar 9, 2022
Fix already in the 5.16.0-13.2-liquorix-amd64 :) And likely very soon in Xanmod.
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