bri3d

3 ms·

1.
by bri3d 5d ago
* Yes, TRACON have their own dedicated links. You can look into ASTERIX and STARS to learn some of the cursed ways the data processing and dataflow work. * There is supposed to be a primary and a secondary link, in this case the primary fai
2.
by bri3d 5d ago
I absolutely agree that engaging with these people beyond "we added checks to ensure your board has the RAM it came with, and this one failed" is a waste of time, but I think that at least providing that level of response would be
3.
by bri3d 5d ago
Really? I found that issue and all of the related ones really disingenuous from the Pi folks; they just stonewalled everyone with "contact your hardware seller" rather than explaining what was going on even at the glossed-over lev
4.
by bri3d 5d ago
I see that now… why did they check it in? One of the whole points of this approach is that that assembler should be trivial to re-derive by the end user since it’s just the original program listing. Some of the Xbox 360 recomp projects like
5.
by bri3d 5d ago
This is a recomp project, not a decomp project; the original binary is supplied by the user, mechanically translated into source code at an architecture level (rather than a human-readable level), and patched. It’s AOT dynamic recompilation
6.
by bri3d 7d ago
I felt compelled to reply to this because I agree with it so strongly (which is also why I phrased my initial post as "sort of odd" rather than "some evil anti-consumer monopoly volcano lair conspiracy"); so many corpo
7.
by bri3d 7d ago
Patch embargoes are a debate as old as security. I think the overall source embargo is rational _until_ fixes appear in a released binary build. Otherwise there's an integration/QA/rollout window where a source patch is publi
8.
by bri3d 7d ago
Oh! I had thought they stopped at the same time they closed off AOSP commits - that makes this entire rabble-rousing effort _exceptionally_ silly, then; I can't see the angle GrapheneOS are trying to push at all in that case (like, I g
9.
by bri3d 8d ago
So, the real thing that's happening here is: * Google drop "real" Android source-code updates to OEMs _and_ the public every half. * But they ship four Pixel updates, including documentation + SDKs. * Now they added new APIs
10.
by bri3d 10d ago
CA v. Altai (where the abstraction-filteration-comparison principle comes from) and SAS v. World provide pretty strong positive evidence that clean room is a valuable technique in both the US and Europe. I do agree with you that the term is
11.
by bri3d 11d ago
By not having void air space in between cylindrical cells like you'd get with two 18650s? It's mostly just a matter of packaging. Pouches can be made to have better volumetric density than cylindrical cells quite easily, which is
12.
by bri3d 13d ago
I read this as the chunks are 64 bytes and thus each chunk is split over 9 frames. I haven’t looked yet but it’s probably an ISO-TP esque framing protocol.
13.
by bri3d 14d ago
Yeah, that’s a good way to summarize what people are mad about; they basically moved all of the calibration from onboard to offboard diagnostics, and then thwarted most efforts to access the offboard diagnostics. Automotive is similar and I
14.
by bri3d 14d ago
Newer Deere equipment has a lot of components that have to be adapted using DSA - turbo actuators, various hydraulic sensors, various suspension leveling sensors, fuel injectors, interior displays, and anything SCR related are the big ones.
15.
by bri3d 17d ago
Palantir sell consulting services ("forward deployed engineering") around graph and map database platforms, using data supplied by customers. Some of their customers ask them to make surveillance aggregation systems, others ask th
16.
by bri3d 25d ago
I don't agree that this particular trait of macOS makes an implementation at the layer WINE implements (full API+ABI) any harder or easier. Certainly, vertical integration makes OS porting (ie Asahi) and lower level emulation more diff
17.
by bri3d 25d ago
No? Windows also has its own graphics subsystem, compositor, and an even bigger set of user land UI/forms/controls libraries than Mac OS. It really is just a critical velocity / adoption / time thing, there’s nothing str
18.
by bri3d 29d ago
I don't think this is new with LLMs (finding an exploit based on a few words offhand has always been a fun part of exploit development), but it's scaled and democratized to mass exploitation of low value targets. Backing exploit P
19.
by bri3d 1mo ago
> The entire point of compiling is to strip that extra data out, leaving pure functional logic that doesn't even strictly match the source logic thanks to optimization. I strongly disagree with this notion from even a conceptual (mu
20.
by bri3d 1mo ago
Yes, I agree with you (see my sibling post), but it's not what the post I replied to was saying.
21.
by bri3d 1mo ago
It seems like it could go either way to me in the US (not a lawyer, but someone who has a fair amount of experience in reverse engineering / fair use issues). On the one hand, it is fairly clear that producing source code with the expl
22.
by bri3d 1mo ago
Most of these projects carefully distribute only the source code representation of the binaries, for this reason, relying on the consumer to acquire / own the art assets and copyrighted material (logos, trademarks, etc.).
23.
by bri3d 1mo ago
Only server, as far as I know. Server is now either high-density E core (Sierra Forest) or low-density P core (Granite Rapids), but desktop and laptop are heterogeneous still; laptops are getting even more heterogeneous because they have P-
24.
by bri3d 1mo ago
> Realistically, that sort of thing isn't useful as non-homogeneous architectures really suck for an application or OS to deal with. I agree that if each core doesn't "support" the full ISA it's a huge pain (the
25.
by bri3d 1mo ago
There’s a technology fundamental driving the short form aspect too, current video models are all trained on <500 frame sequences and struggle to generate long shots. There are a lot of attempts in the literature to improve cross-generati
26.
by bri3d 1mo ago
Android has a proprietary HAL on both ends; the userspace interfaces to drivers are not the same as on "normal" Linux for almost any devices (baseband, video acceleration although this is at least EGL based, cameras, sensors, audi
27.
by bri3d 1mo ago
Friction drive e-bike conversions were popular years ago. They generally: * Wear tires surprisingly quickly * Absolutely suck in any form of weather or terrain condition (dirt, rain, etc.) * Have ~20% less efficiency than any other drive fo
28.
by bri3d 1mo ago
> Wait until they find out your mechanic has unfettered access to your car's OBD port when you hand them the keys Surprise! “They” did find this out and UN155/156 regulate a bunch of protections against local “attackers,” often
29.
by bri3d 1mo ago
With respect to 2), I don't think this should work architecturally even if the DRAM controller has knobs which can be accessed, because the guest's RAM should be encrypted with keys that can't be recovered in this way. It&#x2
30.
by bri3d 2mo ago
No, because the two platforms often don't share the same underlying kernels; this has been one of the main issues and complaints with ROCm/MIOpen since the start, although they are catching up slowly. This is actually a corollary

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