kosma

21 ms·

181.
by kosma 10y ago
> In the US the NEC requires this. If you bother to look inside your breaker panel you will find the neutral and ground wires are literally screwed down to the same bus bar. It could be different in US, but in modern European installatio
182.
by kosma 10y ago
For those of you who don't have access to proper grounding (because, for example, the wiring lacks PE or it's faulty): a plain separation transformer (1:1) between mains and your laptop might be able do the trick. Unfortunately
183.
by kosma 10y ago
This is potentially deadly advice. A neutral/grounding fault will energize all your home devices with live potential; same with a live/neutral swap (unlikely but possible with Indian wiring standards).
184.
by kosma 10y ago
My understanding is that it's caused by Y capacitors in the power supply's EMI filter leaking minimal amounts of current onto the case. As others have mentioned, proper grounding usually fixes the issue - although in one case I ha
185.
by kosma 10y ago
The incorrect link gave me a good laugh though.
186.
by kosma 10y ago
Such is the price of using C on Harvard machines. It's even more pronounced on '51 as even the smallest $.5 chip has four (!) different address spaces (direct/register ram, indirect ram, xram and code) - and bigger chips have
187.
by kosma 10y ago
Unfortunately licenses for outdated versions of outdated compilers for outdated versions of an ancient language still sell for 3995€ a seat - I know because I'm using one right now. Nothing beats good old 8051 in terms of price. :)
188.
by kosma 10y ago
I did this test as a break from sitting in front of Keil C51. These questions highlight a very important issue: there are platforms and compilers out there that will bite you in the ass if you try to unconsciously apply what you learned whi
189.
by kosma 10y ago
How dare other people work in a coffee shop, aka my socializing space! ;)
190.
by kosma 10y ago
The title of this article should be "Don't go to art school in USA". The rest of the world has it different.
191.
by kosma 10y ago
> How do you measure "X", anyway? By hiring. Or, rather, not hiring. At every single company I worked for we had huge trouble finding new people skilled enough to understand our product/codebase and extend it. A task tha
192.
by kosma 10y ago
> You don't have to be autistic to be driven mad by the constant interruptions enforced by office culture. There's a difference between finding something completely pointless and stupid (an exaggerated "this is driving me
193.
by kosma 10y ago
> An obsessive personality can lead to an individual working 80 hour weeks - not by choice, but by default. They literally don't know any better and are not necessarily competent to make a conscious decision not to this. It gets eve
194.
by kosma 10y ago
As someone on the spectrum I don't see it as a detriment. Despite a seemingly vast difference between a high-functioning engineer and a low-functioning child, the strategies for improving the quality of life are pretty much the same. R
195.
by kosma 10y ago
This used to be a really damaging stereotype and a de facto standpoint of psychology (and psychiatry) for years. I've personally met experts who wouldn't diagnose ASD in people who managed to get married or get a job. I've pe
196.
by kosma 10y ago
Are we talking about the same kind of politics? Because, from my experience, autistics are more likely to hold strong views and discuss the "big" politics (as in, people ruling the country) while allistics are more into the practi
197.
by kosma 10y ago
I had a look at the documentation and it seems they finally made it a JTAG fuse and not just a value in program memory. Nice move.
198.
by kosma 10y ago
The FPB (flash patch and breakpoint) peripheral on Cortex-M3 allows live-patching the flash contents; this allows you to temporarily change the reset vector. That, plus careful supply voltage glitching to reset some peripherals but not othe
199.
by kosma 10y ago
> there is readout protection built into the SoC I have managed to bypass readout protection on STM32F1 with just a few nights of hacking and $2 in parts; I suspect F4 isn't much different. I wouldn't trust any general purpose
200.
by kosma 11y ago
I'll take a trashed BIOS over a backdoored BIOS any day. Firmware viruses are a very real threat today.
201.
by kosma 11y ago
Commoditization of exploits is important. The crooks have had access to them for a long time now on the black market; it's time we, the ordinary folks, have it too, so that we can raise awareness and protect ourselves. There are danger
202.
by kosma 11y ago
Vim's default are indeed dumb, but what you described is not a vim-specific problem. Walk into any room full of coders and try to use their computers; you'll discover tons of weirdness that can't be explained by anything exce
203.
by kosma 11y ago
The moment you do docker run -v `pwd`:/... you're no longer running pure Docker, but Docker + a shell script. Those shell scripts bloat horribly, are not portable, and are a pain to maintain. This is precisely my problem.
204.
by kosma 11y ago
Seconded. The most important feat you need to accomplish is being able to spin up new instances/environments on a whim. Once you have that, provisioning, testing, failover, scaling and high availability get much easier. Vagrant is dece
205.
by kosma 11y ago
Until a few days ago I was a DevOps engineer at a medium-sized tech company. My primary responsibility was dockerizing their applications and infrastructure. I quit the job. The scenario played out just as you said: I ended up single-handed
206.
by kosma 11y ago
There's a deeper underlying problem: the bit of code lacks any architecture. Even though libuv and others didn't exist back then, that's no excuse to just pull random descriptors from various parts of the program and stuff th
207.
by kosma 11y ago
> Now a developer who is working on a new feature is reluctant to take opportunities to refactor incase their commit message doesn't match the "standard". Having maintained a few projects on Github, I routinely reject comm
208.
by kosma 11y ago
How about implementing some sort of paging on top of it, Intel-style?
209.
by kosma 11y ago
Demanding to gather self-incriminating evidence... pretty bold request.
210.
Runit-docker: painlessly use Runit in Docker containers(github.com)
1 points by kosma 11y ago|0 comments

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