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marcan42's profile
Hector Martin
Hector Martin
Hector Martin
@marcan42

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Hector Martin

@marcan42

If it ain't broke, I'll fix it! I'm porting Linux to Apple Silicon Macs at @AsahiLinux. http://patreon.com/marcan  | http://github.com/sponsors/marcan 

Tokyo, Japan
marcan.st
Joined May 2009

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    1. Hector Martin‏ @marcan42 24 Dec 2020
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      Huh. So apparently SteamVR for Windows Mixed Reality crashes when you turn on the controllers... if you're running in a VM with a certain CPU configuration? This sounds like one bizarre heck of a bug.

      3 replies 5 retweets 37 likes
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    2. Hector Martin‏ @marcan42 24 Dec 2020
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      I'm running it on my TR box with GPU passthrough, and I ended up opening a ticket with support because it just looked like a random crash unrelated to the VM. But then on a hunch I changed my CPU topology and RAM and that... fixed it?

      1 reply 1 retweet 5 likes
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    3. Hector Martin‏ @marcan42 24 Dec 2020
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      I haven't bisected it yet, but I went from 1s8c16t 32G unpinned to 1s8c8t 16G properly NUMA pinned and cores pinned to 8 physical cores on the die the GPU is attached to. But, like, all of this should be a performance thing only?

      3 replies 0 retweets 8 likes
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    4. Hector Martin‏ @marcan42 24 Dec 2020
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      Or is there some nontransparent stuff about hyperthreads that can crash software when they aren't where the OS thinks they should be?

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    5. Hector Martin‏ @marcan42 24 Dec 2020
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      The crash is just inside the SteamVR WMR driver DLL... 🤷‍♂️

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    6. Hector Martin‏ @marcan42 24 Dec 2020
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      Anyway, >400 combo on Beat Saber says this VR gaming in a VM idea works perfectly fine, once it works.

      2 replies 0 retweets 18 likes
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    7. David Airlie‏ @DaveAirlie 24 Dec 2020
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      Replying to @marcan42

      I played it on Linux fine a week or two ago!

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      Hector Martin‏ @marcan42 24 Dec 2020
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      Replying to @DaveAirlie

      Probably not with a Windows Mixed Reality headset though :-) (that 4K screen on the Reverb G2 was too good a deal to pass on)

      12:41 AM - 24 Dec 2020
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        1. David Airlie‏ @DaveAirlie 24 Dec 2020
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          Replying to @marcan42

          Indeed was just on a vive!

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        1. Bruno Gonzalez‏ @stenyak 24 Dec 2020
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          Replying to @marcan42 @DaveAirlie

          Lucky you! I suppose ordered in japan, because G2s are nowhere to be seen in spain T_T Since you like layers, next up would be trying vm>wmr>steamvr>revive>oculus. Maybe running on an M1, so you can also sprinkle a rosetta layer in there somehow!

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