Viewing profile — amboar

I've become pretty enthusiastic about checklists. In case it helps anyone else, I wrote a small tool that helps maintain and execute them: https://github.com/amboar/checklists/ It'…

As I haven't seen a link to it in the comments yet: A while back Hillel Wayne put some effort into resolving the question of "Is Software Engineering Real Engineering?" with the cr…

[keys.select."space"] q = ":reflow" has worked well for me, even if the reflow behaviour itself is sometimes frustrating

gcc's __attribute__((tainted_args)) is pretty handy: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attribute...

Section J.1 _Unspecified_ behavior says > (11) The values of bytes that correspond to union members other than the one last stored into (6.2.6.1). So it's a little more constrained…

Yeah, I have rerere turned on However, it's not directly beneficial for the process outlined. With what I wrote about you only solve a given conflict at the end of a complete bisec…

A handy trick I've developed is using`git bisect` to solve otherwise intractable rebase conflicts: https://codeconstruct.com.au/docs/bisect-intractable-rebase-...

Related, have something similar for the major grid in Australia and it's smaller counterpart in Western Australia: https://opennem.org.au/

OpenBMC supports SoCs from Aspeed and Nuvoton, and HP were/are working to add support for their GXP (iLO) SoC.

Ah, here's the circuit design equivalent of that story: https://twitter.com/dave_universetf/status/14734753486542684...

One of my favourite talks is Decapping Chips the Hard Way by Adam Laurie and Zac Franken: https://youtu.be/0Z4aF-qiziM That was 8 years ago

> It was eating characters, which is the second worst thing it could do. Okay, that's interesting. Did you file a bug with your system's firmware provider or with upstream? You can…

> there is a lot about it that I won't miss, especially the way it handles serial communication Out of curiosity, what were the issues you had with OpenBMC's serial communication?

I realise your post is an argument in favour of Rust over C for these things, but regardless, you might be interested in a WIP library I've started to solve most of the issues you …

> - braindamaged linking I mean, it's simple, but brain-damaged? > - "if (!pred(x) || a I guess more parentheses would improve the clarity but your English translation suffers the …

As others have said, hacking it, certainly. But if you're not up for that and would like something more passive, read LWN.net (and possibly subscribe!)

Rusty's API scale captures this approach really well: How Do I Make This Hard to Misuse? https://ozlabs.org/~rusty/index.cgi/tech/2008-03-30.html What If I Don't Actually Like My U…

Use a packed struct (e.g. __attribute__((packed))). You may take a performance hit due to lack of alignment, but that's the judgement call

Right; then it comes down to platform design and whether you can reboot the soc in a mode that both reopens the bridges and doesn't kill the host, though that's not relevant if you…

Something important to note is that this is largely a BMC firmware problem - the hardware can be securely configured to maintain CIA against the host, just sometimes it is not.

Please upstream your changes! I remember you were playing around with getting OpenBMC running on a Supermicro X11, would be good to expand the x86-64 support

The description looks bad on the surface, but as always reality is more nuanced. These issues are only problematic in specific circumstances, particularly, bare-metal cloud hosting…

Right. The experience so far is that most people find the capability surprising.

Bear in mind the P9 chip does SMT4, so four cores gives you 16 hardware threads, and 8 cores 32 threads etc.

> The BMC (IPMI) is also a self sufficient ARM computer ASPEED BMC SoCs (popular BMC SoCs also used in OpenPOWER systems) have a ColdFire (m68k) co-processor buried inside them. In…