Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. Also, Slashdot's Facebook page has a chat bot now. Message it for stories and more. ×

Comment Re:C strikes again (Score 1) 83

and ASM

Would the ASM have been bug-free?

Would any other language, with ANY amount of safe-guards been physically incapable of producing an off-by-one in it's output code?


This is quite literally "Ragel took a definition, and then compiled it to bad machine code". Whether that was via an intermediary language or not, that's possible with ANY compiler for ANY language. If Java had a bug in it that resulted in incorrect machine code being generated for the "safe" Java code it was asked to execute, the same would have happened.

Bad, buggy compiler. The fact that it used an intermediate language which you disagree with is neither here nor there (and Ragel could output asm direct, so it wasn't "C-specific"). No different to a JVM-compiler bug.

Comment Re:Artificial Gravity (Score 1) 154

Applying force in space is much more difficult because of the lack of free energy given to help you fight it via friction. It's that energy that any "artificial gravity" would have to supply constantly to let you do anything (e.g. walk across a room).

Stopping your own mass quickly is dead easy - you just hit something. It'll be like a fall (no 9.8m/s/s to fight) in slow motion for a frail old man. It all cancels out. If you're going fast, you're dead anyway. Because you have NO way to stop no matter how strong your arms are.

The problem is that you have to find something that will stop you, that's not going to move significantly in the other direction, that you won't damage, that won't damage you, and that won't be moving too fast relative to you (big spinning, large-mass to generate gravity are spinning against you quite fast on a 50-50 basis!)

Comment Re:thank you gemalto (Score 2) 47

The eSim isn't necessarily a software device. Think TPM.

"Upcoming new generation of SIM is called e-SIM or eSIM (embeddedSIM), which is non-replaceable embedded chip in SON-8 package which may be soldered directly onto a circuit board. It will have M2M and remote SIM provisioning capabilities."

It's just that rather than having to produce secure, tiny, portable, replaceable chips, they build a chip into the device that can be programmed (maybe only one or a limited number of times, or only with a signed update) to any number.

So rather than having to mess around with cards, you just identify the chip in the device directly.

Comment Re:Artificial Gravity (Score 4, Insightful) 154

Showers aren't practical in space anyway... forming gravity just for them is ridiculous, and no you don't "need two pumps" (that would be easy!) - you just need air flow. Imagine showering in a wind tunnel - it works just fine and is probably more efficient. The real problem is that you need to seal the entire shower all around as the water will escape from ANY direction.

Sleeping - some of the best reported sleeps are in space, no weight makes for better comfort. But you don't need to be "strapped down", you just need to be lightly tethered so you don't wander off at any speed. Two bungee cords attached to a harness in space will give you the best sleep you ever had.

Laptop fans operate just fine in space. Like the shower, airflow is still present even in the absence of gravity. You're not living in a vacuum.

Body muscles, yes, they deteriorate. Which is why they exercise. But they only deteriorate relative to Earth - for space use they are just fine. Long-term space living, your body adapts to its surroundings rather than building muscle mass that would be wasted anywhere but on Earth.

Comment Re:Goodwill & Dell Computer (Score 5, Insightful) 274

I have disposed of tons of monitors over the years, all with WEEE-compliant disposal agents.

One of them told me that they get paid a pound (British) each to take them to Heathrow. They are loaded on a plane. A guy from a company in India / Asia signs them off and gives them the money. He then pays to ship them out to Asia.

The ONLY way that can be profitable, is for them to be landfilled in a country that doesn't care about what they are landfilling.

On my end, I have all the paperwork, so I have disposed of them "ethically". So has the guy with the van that he takes to Heathrow loaded with monitors every week. And he takes any boxes of cables, which he tells me the copper - melted down - pays for his fuel. Otherwise he wouldn't make profit himself.

I imagine your goodwill store are doing the same, they just don't know it.

Honestly - what possible use is an old, broken CRT monitor? None. That's why we've been throwing them away for decades rather than try to repair them. Even if you look into what's in them, there are no profitable parts you can extract while still being environmentally-friendly (sure, if you don't give a shit about the kids handling rare earth metals to get at tiny slivers of precious metals, then it all "works").

You've been fed a line. But for the last 15 years I've not heard anything but the same thing from all the different people who come to collect our e-waste, all of whom sign off, all of whom get their thing signed-off, but nobody knows what happens to the end product as it goes abroad (at HUGE expense if you consider cargo rates and handling on tons of monitors).

There are numerous studies that put GPS trackers in e-waste. Almost without exception they end up abroad and in landfill.

Whether it's you, the goodwill store, Dell, their disposal company, or the people they use doing that "knowingly" it's almost impossible to tell. But you're aren't doing shit for the planet, I assure you.

Comment Sigh (Score 3, Insightful) 641

They're over the limit?

Sorry, whatever the ultimate cause of the accident, they were unfit to drive, thus pontificating over what they "would have" done in another is absolutely pointless. This driver got into a car and drove off when there was even a RISK of being near or over the limit and never questioned it.

They are, therefore, a BAD DRIVER. The cause of their death - whether that's a guy on the wrong side of the road, unintended acceleration, a fire, etc. is incidental to their decision to drive. That's why we make brakes and steering wheels and train people to pass a test to ensure they're fit to drive, so you can avoid obstacles, stop the car, press the right pedal and not lose control if you're being a driver of even satisfactory driving skill.

Yeah, it's sad. Yeah that kind of acceleration is unnecessary. Yeah, maybe there was a guy on your side of the road - it happens, there are idiots everywhere and people use the other side for overtaking, manoeuvres, etc. all the time. But the driver drove a car without knowing its capabilities, or feeling discomfort at it themselves enough to NOT drive it, or without taking "due care" (a phrase that will come up a lot) to ensure they didn't accelerate unintentionally no matter the situation. And they chose to do so while their judgement was impaired beyond legal limits.

Contributing factors are the least of your problems, compared to telling your OTHER sons and daughters, and their friends and family to NEVER DRIVE DRUNK if they don't want to kill themselves and others.

That you have to state that to an adult is really a sad state of affairs.

If it had been on a Harley (there are electric Harley's now too!), and they'd done the same, would you be calling for motorbikes to be outlawed where you weren't saying that before? The device is not the problem - someone pressing the throttle when they mean the brake is never going to end well, even for a fraction of a second. The problem is that you have allowed yourself to bring up your children to think that drink-driving is fine and acceptable, even if you know it's illegal, and then blame others when your KILLER of a child takes someone else out too by driving drunk.

Fuck, I don't even let work colleagues do that. I have literally removed people's keys and they've started fights with me over doing so. If your own child did it, fix that problem before you look at ANYTHING else.

Comment Re:Follow Proper Procedure: Call Company's Legal D (Score 2) 626

"but then it's also the border agent's right to detain you till you do"

Or get a warrant to say it's necessary.
Which would probably be refused.

The fear of "we'll just hold you until you co-operate" is not due process.

You object.
You wait.
Then you call in the lawyers (in this case JPL's, I imagine).
Because - as stated - they have no right to demand the passcode.
Hell, I'd be making them sign an NDA. As in YOU PERSONALLY sign the NDA to tell me what you'll do with the information in the phone. They'll refuse, of course they will, but it's not like I'm being uncooperative, I'm asking you to document, receipt and provide data security for that thing you're trying to access, which is a core part of evidence preservation anyway.

But there is a reason that I a) wouldn't enter the US, b) wouldn't try to take any electronic devices even if I did.

This guy worked for JPL. Imagine what that's doing to your foreign workers and people on business trips from other countries. They just aren't going to want to do business with you if their secret patents are being shared willy-nilly around the TSA offices without some kind of guarantee.

Hell, if they asked for my social media, I'd refuse beyond showing them my (locked-down) public Facebook page. If that gets me detained, even theoretically, then I'm not risking going at all.

The US is so anti-foreigner nowadays that they are basically going to cut themselves further off from the world than their own ignorance takes them anyway.

Comment Re:So? (Score 5, Insightful) 145

Red Hat gave us RPMs,systemd and NetworkManager. If I was drawing up a kill-list for a Linux distro, those would be at the top.

Outside of their high-end enterprise stuff and the kernel itself, they don't really touch that much. I'm a network manager and have deployed and managed Linux systems, and still do (VMs make this much easier nowadays, alongside the traditional MS setup). I've never once touched Red Hat as a distro for that purpose.

But I've bought any number of Slackware DVDs. Just the fact that Slackware is clean upstream code and simple patches for the most part, rather than highly customised stuff to make it work for The One True Distro gets my money.

I'm sure they do invest and they have a lot of code spread around, but they clearly aren't after my money. They just want huge businesses and not smaller shops at all. The pricing alone tells you that.

But Slackware? I've bought CD's almost every year (that are basically useless as soon as they've published because they are out-of-date and I never use physical media anyway), and the amount of work that goes into making it *my* OS is what I'm rewarding.

Red Hat don't have a penny of my money, in comparison.

Comment Re:Anti-theft device (Score 1) 142

Better than "software only" suicide, yes, it removes the value in the device.

But blowing a difficult-to-replace electronic fuse after zapping the memory would be simply and easier for such a purpose, and also be a device that would be allowed on the plane.

We're trying to STOP phones being dangerous, not make them more so.

And properly controlled and encrypted devices have an automatic protection against theft of data - it's called the encryption. Remove the encryption key or store it on a TPM chip if you have to. Better - put it on a TPM chip where the self-destruct features just clears the chip. Cheaper, simpler, safer, and can be done with existing devices.

Comment Re:Confusion (Score 1) 652

I'll give you my login to anything, even Facebook. Hell, my Slashdot login is above this very message.

What use is that to use unless it's so open that it's showing everything you said (e.g. my Slashdot). My social media logins get you almost nothing that you wouldn't already have by that point.

Are you suggesting they've stopped at that point, when there are no posts visible because "Homeland Security" isn't in your friend list on Facebook? I don't think so. I think, at minimum, they're asking you to reveal a login and if they're suspicious (which could include "Gosh, he doesn't let us see ABSOLUTELY EVERYTHING"), then it will go for passwords too.

And, technically, the email on this account of mine is completely different to the email of other accounts. Hell, I have about 20+ domains all with unlimited aliases I could use on them. There's no help there at all.

No, this is about volunteering information, and then if there's any suspicion (you didn't volunteer) forcing it out of you.

The US has been dead to me since just before 9/11 when all this nonsense started. I literally CANNOT take a laptop or phone which may have any work logins, emails or anything else at all on it into the US. EU law says that's breaking the law.

That ruins a whole load of stuff you might want to do on holiday, and kills business trips stone dead.

And if you demand logins to unrelated things, I'm likely to refuse. It's that likely to get me into trouble, I'm likely not to bother trying to go.

As such, not been to the US in years and have no current intention to go there.

Slashdot Top Deals

Machines have less problems. I'd like to be a machine. -- Andy Warhol