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Gentoo Tesla – T2 Edition

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Re: Gentoo Tesla – T2 Edition

#61

Post by aidos »

stagger87 wrote: post #47
aidos wrote: post #44

Earlier quoted context omitted.

OT but what was the deal with the Toyota thing? I read something about this on HN the other day and as far as I can see they were unable to reproduce the bug https://en.wikipedia.org/wiki/2009%E2%80%9311_Toyota_vehicle... Would love to hear more about it from anyone who has more information.

This was my favorite read, https://users.ece.cmu.edu/~koopman/pubs/koopman14_toyota_ua_...

Thanks!

That picture of the ETCS board has just reminded me of a time my friend gave me a tour of the Mclaren F1 workshop – he worked on the testing team.

They'd just spent a couple of weeks tracking down an issue where the engine had misfired during one of the races (like, once or twice). Turns out that the tracks on one of the control circuit boards were a tiny bit too close and there had been an arc. I couldn't believe how much work they had put into figuring it out.

Re: Gentoo Tesla – T2 Edition

#62

Post by nickysielicki »

There's a lot of Gentoo hate in this thread. I think that's funny when you consider that the most-used Linux distribution on desktop/laptop computers is based on Gentoo. [1]

Google chose engineers for ChromeOS, and those engineers chose Gentoo. CoreOS also uses portage IIRC. Gentoo isn't for everyone, but I think there's probably a correlation between people who have used Gentoo (or similar) at some point in their life and people who know Linux thoroughly.

[1]: https://www.quora.com/Why-is-Chrome-OS-built-upon-Gentoo-and...

Re: Gentoo Tesla – T2 Edition

#63

Post by deegles »

jokr004 wrote: post #48
nekomancer wrote: post #42

Earlier quoted context omitted.

There have actually been a ton of examples over the years of researchers hacking into car systems wirelessly, some of which used the media system as the attack vector. Even if the media subsystem is running on dedicated hardware, the fact that it's networked with the rest of the car means that there's still a risk of it being used to gain access to other components.

>Even if the media subsystem is running on dedicated hardware, the fact that it's networked with the rest of the car means that there's still a risk of it being used to gain access to other components. I don't think anyone was claiming anything contrary to that, just that replacing the software running the media dash isn't going to fubar your car.

But it might fubar your warranty...

"Your honor, we were not responsible for that AutoPilot crash because the driver did an unauthorized modification of the car's software!"

Re: Gentoo Tesla – T2 Edition

#64

Post by karcass »

djsumdog wrote: post #55
wille92 wrote: post #16

I'm all for rooting my phones, media devices, gaming consoles...but I think I'd stop short of rooting my car. I think back to the Toyota electronic throttle control system bugs--we can hardly trust manufacturers to develop robust automotive software on their own, long before rooting and customization are thrown into the mix. The media system modded in this post _should_ be completely separate from the "brains" of the…

If you read, he's running in a chroot within the TelsaOS (which I'm guessing controls a lot of the sensor in/outs for displays and can't really be removed). So it's like running an X server and external display on your Android in a chroot, so it looks like you're running Ubuntu and Android.

she is running in a chroot

Re: Gentoo Tesla – T2 Edition

#65

Post by Hemera- »

gjolund wrote: post #2

Dude you are my hero. I look forward to the day that I can sit in my car with my friends, smoking something, watching a movie, and letting the self driving vehicle wander around LA while we look for interesting places to stop and explore. I would never use my couch again. Edit: If tesla begins making showers I may not even need an apartment.

Thanks :) This has been a really fun hobby :D

Re: Gentoo Tesla – T2 Edition

#66

Post by Hemera- »

vessenes wrote: post #4

I can't tell if the pull quotes are satire or not. "With Gentoo, my 5s 0-60 is so much faster than your 5s 0-60." Combined with the stated 3 day compile time, I'm thinking yes? Maybe?

If you look at the bottom of my blog you'll see that the captions and jokes are referencing http://funroll-loops.info/

I even took some of my favorites from there and modified them to reference Tesla, and that's what the captions are.

Re: Gentoo Tesla – T2 Edition

#68

Post by hexxeh »

nickysielicki wrote: post #62

There's a lot of Gentoo hate in this thread. I think that's funny when you consider that the most-used Linux distribution on desktop/laptop computers is based on Gentoo. [1] Google chose engineers for ChromeOS, and those engineers chose Gentoo. CoreOS also uses portage IIRC. Gentoo isn't for everyone, but I think there's probably a correlation between people who have used Gentoo (or similar) at some point in their li…

ChromeOS originally was built upon Ubuntu, but Gentoo made more sense when starting to build for a rather diverse set of hardware, various flavours of ARM etc.

Re: Gentoo Tesla – T2 Edition

#69

Post by pritambaral »

sweden wrote: post #35
brianwawok wrote: post #20

Earlier quoted context omitted.

So what happens when your app hits an infinite loop and locks the CPU? Or trashes some memory it shouldn't? Does autopilot still work? Do the airbags still deploy? Does the brake still work?

It is an interesting question. A while a go, 2 guys made a presentation at DEFCON with a presentation about their findings on hacking a Tesla Model S. They were able to successfully get root access to the car's system (not chroot, real full root access) and with that they were able to fully access to the car's API within Tesla OS. They even showed a video about one of the guys driving the car at low speed and the oth…

While it is very reassuring that the car is able, the speedpoint chosen by Tesla – 50kmph — is not. I'd rather a car not be remote-controllable at anything more than a slow crawl, and 50kmph is quite capable of making such a heavy car dangerous.
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