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Submission + - Hardware Researchers Have Found Intel Instructions That Can Modify Opcodes (twitter.com) 2

stikves writes: From Twitter:
"Wow, we (+@h0t_max and @_Dmit) have found two undocumented x86 instructions in Intel CPUs which completely control microarchitectural state (yes, they can modify microcode)"

The implications are significant, since the code running on Intel CPUs can no longer trust that they will not be subject to adversarial execution of their instructions.

Comment Medically Qualified? (Score 1) 59

Serving ads for soup may be acceptable, if really annoying for the end user.

Linking a medicine with any sort of diagnosis would immediately come under a raft of legislation in many countries. Only qualified physicians or other healthcare professionals are able to do this legally as far as I know...

Comment Bandwidth? (Score 1) 84

A question - if anyone can give a reasoned answer... These things have no ethernet port - therefore images will be streamed over wifi. What is the maximum number of Pi Camera installations that could be set up, without saturating the bandwidth available? Any recommendations or advice?

Comment Re:No, nobody has run into this (Score 1) 167

I used to use Optar. Has the problem of 'expanding' the data to fit a full sheet of paper. I would prefer to have a compact block of known width and variable length up to a max of paper sheet length personally (but I don't have the coding skills to do this). Paperkey looks only useful for PGP keys, but not other data. Not looked at paperback - any comments on how good this is?

Comment Re:Beta Fightback (Score 1) 108

Whilst I, like every else here, seem to hate the changes being made here, are all the people here who post complaints here totally IT incapable?

If anyone here reads /. using firefox, it doesn't take a huge degree of effort to edit the HTML 'on the fly', and strip out all the offensive code. Has anyone looked at the RSS feed lately? It is abominable!

SOLUTION: Install Stylish, and voila. Complete control to throw away all the crap.

We probably should set up a community-driven recipe that everyone can download without the hassle of writing their own recipe. I *might* try to get round to doing this in a day or so... No promises, though.

Comment Re:No SINGLE solution for you... (Score 1) 420

It's a big question, and I don't feel that there is a single answer. But this is what I did...

I bought a Raspberry Pi, stuck XBMC on it, and am quite happy with it. However, what I did was wrong (at least, the approach was). However, I did it that way because I already had a Pi for other reasons, was playing with it, and I am a cheapskate that doesn't like buying hardware!

What you should do is decide what software you want to run, and your competency level of installing and maintaining it - and then buy the hardware to match.

I *really* wanted a simple DNLA Digital Media Renderer (DMR), rather than a DMC. Personally, I've never really liked GUI's, and wanted a simple backend just to play what was streamed to it. However, in the end, I could not find what I wanted, and developed an opinion that DNLA is a mish-mash of ideals that don't completely work in practice. So I gave up on that thread.

Had a brief encounter with the Apple TV. Didn't like it at all - not what I was looking for. The other retail consumer devices I had problems discovering that they wouldn't cope with all the potential formats I had, or wouldn't do what I wanted, or (more commonly) that I couldn't discover exactly what they were capable of anyway. I don't like locked-down platforms.

So I ended up with XBMC. It feels (to me) a bit bloated. Why would I need to view the weather on my TV? Or photographs? Etc... But the rest of the community seem to think that it isn't half bad, so that is good enough. But importantly, it works! I watch TV on a TV, not on the iPad (though the wife does) - and XBMC streams to it quite happily (so long as the format is correct - I've not bothered to look at streaming any .mkv files or transcoding options. And, if I feel the need, I can stream from the iPad to the TV (not that I do). Additionally, there is a very useful iPad/iPhone remote control app. It is my primary method of controlling it.

The annoyance (for me) is that I still need a keyboard plugged in to the Pi. It's not used much, and the plan is to ditch it completely, but I'm still tinkering with it. Also, I haven't got it to download TV schedules, or watch on-demand content from the web, or watch live broadcast TV, or act as a PVR, etc, etc. But that really isn't important to me. It may be for you...

Comment Misinformation (Score 1) 290

I guess that the original post really doesn't understand what TPM is, and has subscribed to the 'conspiracy theory' brigade. What would be the reason for avoiding the chip altogether, when it is quite possible to disable the functionality.

As a self-confessed privacy freak, I'd love a TPM module in my home machine - sadly I have not located a source of the module at a sensible price. I did, however, have it on an old laptop, and (under linux at least) found its functionality very positive. Then again, it was under a non-commercial OS, and I had full control over it.

What I *don't* understand is UEFI - mainly because I have no hardware to hack with. However, that appears at first glance to be more problematic for me to hack, since it seems only MS are able to sign the bootloader. Not a problem with TPM.

In short, it is not the presence or absence of the chip that the OP needs to think about - it is the software that is installed and used.

Comment Arghhh! (Score 1) 132

Stop this - RIGHT NOW.

Mitochondria do not have DNA, therefore the UK is not creating babies using the DNA from three people.

Mitochondria are being transferred whole, and contain RNA.

I know this is slashdot, and we must expect inaccurate reporting of scientific and technical subjects - but really...

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