Unklejoe

5 ms·

1.
by Unklejoe 3y ago
> You can also set init_on_free=1 in linux cmdline, the kernel will overwrite freed memory. Does this only work with kernel buffers? I’m wondering how glibc handles freed memory. I feel like there’s a good chance it doesn’t always notify
2.
by Unklejoe 3y ago
Can we talk about capacitive buttons while we’re at it? Worse in every way from a usability perspective. Supposedly more reliable, yet I’ve had plenty of failures. My damn dishwasher has capacitive buttons…a dishwasher - something you use w
3.
by Unklejoe 4y ago
BMW uses a rotary encoder for their iDrive thing. I have it in my 2011 3 series. People trash talk it, but I actually like it.
4.
by Unklejoe 4y ago
I’d become a burner technician for boilers. You have to be technically minded so there are some barriers to entry, and it’s basically critical infrastructure so there’s some security. They also get paid well.
5.
by Unklejoe 4y ago
Cars didn’t really start getting wireless CarPlay until around 2021. It would take a while for those cars to age out. My guess is that if Apple makes a portless iPhone, they will also make a wireless to wired CarPlay bridge.
6.
by Unklejoe 4y ago
There is a serious push to find a way to tax electric car owners to make up for the lack of a road tax that’s normally rolled into gasoline prices. Some people will propose tracking the mileage, while others will resist that idea because of
7.
by Unklejoe 4y ago
It’s actually kind of cool to see Mastodon being enough of a threat to be talked about these days.
8.
by Unklejoe 4y ago
> That seems to suggest that folks who have goods stolen from their stores would be justified in using violence to stop the thieves? I’d be happy with a store owner not being liable for injuries if they tackle someone who is trying to st
9.
by Unklejoe 4y ago
You could use heat exchangers (coolant) with a thermostat. It would stay closed until the batteries reached a certain temperature then it would dissipate heat through a radiator. Just like a coolant system on an ICE car.
10.
by Unklejoe 4y ago
> BUT ALSO shot out of an "injector" to fall precisely into alignment with the lasers, in vacuum within a plasma field... It does sound like magic, but doesn't EUV involve some process similar to this? Something about shoo
11.
by Unklejoe 4y ago
One thing I've always wondered about is how the ECC is handled on a modern SSD with regards to data retention. SSDs often have a data retention spec that basically defines how long you have until your bits start flipping, and it usuall
12.
by Unklejoe 4y ago
Not surprised to see you on here. I was the guy who got into the discussion about the merits of single mode vs multi mode with a few of your friends on Facebook a while ago. I was in the multi mode camp mainly due to cost reasons whereas th
13.
by Unklejoe 4y ago
You can attach a string to a foam ball/plunger type thing and then suck it through with a vacuum from the other side. Then, fix your wire to the string and pull it back in the other direction.
14.
by Unklejoe 4y ago
Another example is how garage door opener trip-beams work (the sensors that detect if something is in the way before lowering the door). The transmitter and receiver are wired in parallel and connected to a power supply through a series res
15.
by Unklejoe 4y ago
It’s fine for debug builds, but people should be aware that building with the address sanitizer enabled balloons the size of the executable and slows it down tremendously.
16.
by Unklejoe 4y ago
I’m not sure about that. Most cars can stop way faster than they can accelerate. The differences in force would be even more extreme for front wheel drive cars where the weight transfer allows for more grip on the front wheels during brakin
17.
by Unklejoe 4y ago
There were basically VPN services back in the day that would allow you to play Halo CE over the internet with strangers (the game would think it's on a LAN). This was before Xbox live (Halo CE didn't support live AFAIK), then even
18.
by Unklejoe 4y ago
Corded electric mowers are very rare in the USA. I live in a suburban neighborhood in the North East and have never seen one in my life. I see some battery powered ones though. I wonder if it’s due to our outlets being 120V? We’d be limited
19.
by Unklejoe 4y ago
Wow. I had no idea that was something that could happen. I would have expected you to wake up before damaging yourself like that - sort of like falling asleep in the bath tub.
20.
by Unklejoe 4y ago
My problem with that is: > significant decline in economic activity What is "significant"? > more than a few months How long exactly? All I gather from their description is that they basically just get a "feel" for
21.
by Unklejoe 4y ago
I'm shocked to see people here arguing for keeping leap seconds, accusing the Meta engineers of just being lazy. Leap seconds are stupid in my opinion. Under no circumstances should a timescale have discontinuities like that.
22.
by Unklejoe 4y ago
> GPS runs TAI GPS time is actually 19 seconds behind TAI at all times.
23.
by Unklejoe 4y ago
They're still used sometimes for low level ancillary board functionality. Like, controlling reset lines going to SoC's, etc. It's actually something that an EE may end up using in their career quite often if they're doin
24.
by Unklejoe 4y ago
I'm assuming that they need to have some type of power supply between the battery and the voltage rails of the amplifier to convert the 3.7V (or whatever) battery voltage to something higher. I would be surprised if this power supply w
25.
by Unklejoe 4y ago
How can a compiler remove a volatile store? There exists hardware where a store has a side effect, regardless of the value itself. For example, writing to a FIFO. That’s the entire point of volatile, no?
26.
by Unklejoe 4y ago
I read at some point that a piece of dust hit the telescope and potentially damaged it. I'm guessing that it turned out not to be a big deal or maybe they were able to work around it? Does anyone have any insight? The fact that they&#x
27.
by Unklejoe 4y ago
Could it be based on whatever physical port you’re attached to on the ISP’s network?
28.
by Unklejoe 4y ago
There’s a BMW factory level diagnostic program called Tool32 that might help when trying to reverse engineer stuff like this. I don’t think there’s a way to legitimately get ahold of this software though… Anyway, it has a bunch of test oper
29.
by Unklejoe 4y ago
If the drivers are for PCI or USB devices, then they would have probably worked for those unsupported architectures "for free" if they were written in C.
30.
by Unklejoe 4y ago
I’m right here, bombing Leetcode interviews because they ask me to write a program that sorts the columns in a CSV file in 15 minutes and I only know C.

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