Comment That's Easy, Jomo! (Score 1) 255
Keep all of the idiots that want to work for a millionare for nothing. Fire the others.
Anyone with sense has by now joined a non-profit project.
Keep all of the idiots that want to work for a millionare for nothing. Fire the others.
Anyone with sense has by now joined a non-profit project.
Compare-and-exchange and mfence would be doing cache flush all of the way to RAM and global cache line invalidation, wouldn't they? So, they can potentially be used to hammer too.
Multi-threaded programs really do need those cache flushes to implement their interprocessor communications, don't they? It seems to me that they would be the ones most likely to hit this problem.
It has yet to be established whether hammer techniques can result in a correct data+ECC pattern. If so, it should be possible to permute the memory in a way that defeats this, either on the memory module or the memory controller.
That would make a good research paper for someone.
Yes, you beat me to it. A correctly-configured ECC motherboard with real ECC memory would defeat this. Watch out for fake ECC memory that just simulates the correction bits.
Once memory starts being vulnerable to row interference, having a machine without ECC becomes much more dangerous, regardless of this exploit.
You have the Part 15 and ISM services for that. You really can buy a microwave link that's metropolitan-distance and legal to use.
We lost much of our 440 capability to PAVE PAWS in California. Remember, Amateur Radio is not the primary service on many bands. The military is on 440.
If you want that nearly infinite microwave spectrum, you have the Part 15 and ISM services. Absolutely nothing is stopping you. Power is not the issue with those frequencies, it's line of sight and Fresnel zones.
No, I absolutely do not have to prefix my words with anything. You do that by posting as an anonymous coward. I use my real name to indicate that I stand behind my words.
Yes. The usual mechanism here would be WiFi security, with HTTPS or SSL inside of it.
It would be very bad if Firefox was gone.
The stock Android Webkit browser has a very bad security flaw - it does not properly enforce the Single Origin Policy (SOP) in Jelly Bean and below. It will not be fixed.
For Android devices that lack Google Play, Firefox is the best option.
Firefox would be an even better option if it was as fast as the stock Webkit browser. Let's hope that happens.
Potential Firefox wins:
Firefox is also the default browser in RedHat/Oracle/Scientific/CentOS Linux. That has to count for something.
OK, no real technical data and some absurd claims here.
First all-digital transceiver? No. There have been others. Especially if you allow them to have a DAC and an ADC and no other components in the analog domain, but even without that, there are lots of IoT-class radios with direct-to-digital detectors and digital outputs directly to the antenna. You might have one in your car remote (mine is two-way).
And they have to use patented algorithms? Everybody else can get along with well-known technology old enough that any applicable patents are long expired.
It would be nicer if there was some information about what they are actually doing. If they really have patented it, there's no reason to hold back.
Uranium was an awful decision for power generation, chosen only because it could also be used in weapons.
Thorium is a waste product in mining, and it only comes in one naturally-occurring isotope, so it doesn't need expensive enrichment like uranium.
Thorium reactors follow the U-233 decay chain, and run entirely as a liquid, low-pressure system, which can be diluted easily and, if necessary, mixed with boron for complete emergency control.
Conventional uranium fuel comes as metallic rods - which cannot be diluted. High-pressure uranium reactors should be universally retired - they are expensive and unsafe.
All power corrupts, but we need electricity.