Re: [REGRESSION] GPU passes into VM improperly after c376a3456d8b or a98db518dde2

Thorsten Leemhuis <[email protected]>
Newsgroups dev.linux.lists.regressions,dev.linux.lists.iommu,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
On 4/29/26 22:30, 70sp wrote:
> So I have tested it on both a working kernel (v6.12) and an affected kernel (mainline).
>  
> I managed to get the domain translation structures on the affected kernel, but couldn't get them on the working one since reading the file always ended up in a system crash or a segmentation fault.
>  
> I also couldn't get the PASID table entries, because the GPU doesn't support PASID.
>  
> Domain translation structures:
> GPU: https://pastebin.com/4EY5Wmsj
> GPU audio device: https://pastebin.com/fLf7weii
>  
> I've also looked through dmesg on both configurations, and on the affected kernel, this was the only data I found to have atleast something different. (On the working kernel basically nothing was reported)
>  
> Referenced snippet of dmesg: https://pastebin.com/5e3jQ2BL

Lo! Baolu, just wondering: what happened to this? It seems things
stalled. Or was there any progress to fix the regression that I missed?
Or do you need more data from 70sp? Ciao, Thorsten
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