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Comment Re:The service manual (Score 1) 750

Thanks for the info on VSRM- I wasn't familiar with that acronym, and a google search on it was unenlightening w.r.t. automobile manuals.

I would still ask Zurk where he stops quoting the manual, and starts providing information/opinion not in the manual. I suspect that the last 2 paragraphs:

An internal short could occur within one or more of the paths from the circuits leading to the ecm. That could lead to a situation where the computer cannot detect its own failure.Therefore, when the system gets conflicting information, it arbitrarily ignores half the conflicting information. It does not know which of the circuits are lying or if they both are lying and shorted together. different resistance values will lead to arbitrary acceleration. Having the brake override it is a stopgap, but ixing the real problem (perhaps with a third circuit in voting mode which will require replacing the entire circuit path) is the REAL FIX. I suspect 2012 and onwards toyotas would have a third path and faraday cage/denso replacement for the magnet assembly in the plastic accelerator pedal (which is another problem with EMI which might lead to acceleration) which i am not going to go into here.

So, YES OP you should definitely install the update. Its the only thing standing between you and death if both the APP circuits short

.

are not in the manual.

It's OK if the information is a reasoned guess, speculation, or something he's tested personally or just a WAG. I would like to know how he came by it, so I can judge it's usefulness. Even if it's speculation or a WAG, it's a decent theory that can be easily tested. OK, maybe not safely tested, but testable at least.

Comment Re:You're looking at it wrong. (Score 2, Interesting) 750

That's very detailed information. Where are you getting this from? I see that ETCS issues are mentioned in a lawsuit against Toyota, but you're specifying that the unintended acceleration in Toyota's may be the result of a simple short across the 2 APP sensors? That's pretty big news, and if so, it's a hardware issue with a potential software workaround, as you've detailed above.

Is this something you've determined personally, or do you have a source link for it?

Comment Re:Rootkit false positive? (Score 1) 658

Was working on customer's computer last night, and I did the scan of his hard drive on my clean system and it caught a hacked atapi.sys with AVG.

"Object name";"K:\WINDOWS\system32\drivers\atapi.sys"

"Detection name";"Trojan horse Rootkit-Pakes.U"

Swapped it out with the good one from my windows XP SP3 and then did the updates on his system. No issues.

I was just lucky and did this without knowledge of the Blue screen issue.

So, to sum up:

1) yes atapi.sys can be hacked

2) didn't see any blue screens when updating 4 XP systems with known good atapi.sys.

That's just one data point, but it's useful.

Comment Misleading Summary, Misleading source article (Score 1) 920

The article from the "Orlando Sentinel" is just a bit slanted. Perhaps things aren't as bleak as that article and the summary suggest.

If we lose Constellation, it doesn't follow that the Manned Space Program is gone- just that we can't afford Constellation. See the Augustine Commission's report that claims that Constellation will only work if we give it another $3 billion a year. And this would have been for a program 5 years behind schedule, with no real test flights and several significant safety issues that haven't been resolved as of yet.

So what alternatives does the Obama administration have to look at? Well, as the article notes, Nasa will look at other heavy lift launch designs and come up with a plan to use one of those to replace the Ares V. As the Ares I was for Crew only, Nasa will look at the commercial launch vehicles such as the Dragon that we can use to ferry astronauts to the ISS and back. Nasa will get $200-300 million more a year to look at the new designs. This seems like a reasonable idea. We'll use commercial space services to lift the light stuff, and let NASA design the expensive, heavy lift vehicles.

The other point made in the article is that a new program won't be ready any time soon, implying that the new program would be starting from scratch. Given that Constellation wasn't going to be ready before 2017 at best, I'm not sure that we're going to lose any time we would have made up with Constellation. The other thing is that we won't be starting from scratch. Worst case, we start with the NLS review vehicle that NASA worked on back in 1993. Best case, we let those hard-working NASA engineers start with the DIRECT V3 proposal and get something up by 2015, a full 2 years before Ares would have been ready.

Comment Re:NTFS-3G vs. nfsmount (Score 1) 484

ntfs-3g was updated on nov 14 2009

ntfsmount was last updated in 2008

you do the math.

I've used ntfs-3g for external storage. A lot. ntfs-3g won't fix a corrupted fs or bad block, and you'll need access to the windows box to do that, but since you plan on having access to windows, that shouldn't be an issue. What's nifty is that I haven't seen a large decrease in speed for reads and writes- not as fast on linux as ext3, but 25MB/s isn't out of the question.

At the moment, I trust open source linux drivers for ntfs much more than anything that has to run on a windows box to let it see ext3.

Comment Re:not first, just big (Score 1) 82

We've had the Lincoln cluster online and offering processing time since February of 2009. 196 computing nodes (dual quad cores) and 96 Tesla units. That being said, congrats to the Aussie's for bringing a powerful new system online.

Someone later in thread asked if these GPU units would actually be useful for scientific computing. We think so. Our users and researchers here have developed implementations of both NAMD, a parallel molecular dynamics simulator and MIMD Lattice Computation (MILC) Collaboration that use the power of the GPU's. Both of these codes are freely available and widely used in the HPC community. We've had no lack of requests for time on the Lincoln cluster.

Are these GPUS for everyone? Nope. To disappoint all you gamers out there, the Tesla units have no graphics out ports. All the communication is done over the the PCIe bus. But for all of you budding scientists out there, these cards use the same freely available CUDA language that runs on all modern (8xxx and above) Nvidia hardware, so you may already have compatible GPU in your desktop now, even if it's just a single unit and slower.

One last note, while these units run really fast with single precision, they are capable of running in double precision, albeit much slower. For some problems, multiple initial runs can be done at the lower precision to localize the solution set, before doing a slower high precision run to find the final solution. This is similar to what Hollywood does when rendering animated movies- they first render a quick lo res version to see if the timing and characters are correct, then they run a hi-res version which takes longer to get a finished product. (Yes, I know, there's a lot more steps to it, but hey, this is just an analogy)

Comment Re:Partly a software problem. Erlang? (Score 1) 286

Well, the increase in numbers of cores will surely migrate down to the desktop level. Don't both Nvidia and ATI claim to provide graphics cards with hundreds of cores now? All available to the casual user.

He's got a point, though. Although the current HPC market is mature, and very sensitive to performance, the upcoming market for desktops with 100+ cores (call it hecto-scale) will care less about efficiency, and more about providing an easy way for the users to actually utilize all those cores. Even if the erlang language isn't want today's HPC users want, something like it will be useful for users on those hecto-scale desktops. I want to be able to take advantage of all those cores, but I sure don't want to write MPI or any other of today's options for massively parallel computing.

Maybe OpenCL or CUDA will spawn off some interpretive language that will be useful for us non-parallel programmers. On a system with 100+ cores, a language can afford to be less efficient for scripting or simple computing, but still find a use for all that processing power. We've certainly been willing to accept a loss of efficiency versus an ease of programming once the systems get powerful enough (look at the original assembly programming for the 8 bit home systems and compare it to say, java and an IDE).

Comment Nice launch, when would the actual Ares I launch? (Score 2, Informative) 383

Given that this test, while useful, didn't actually use any of the components of a man-rated Ares I, I'm not that excited.

Ares I will use a new 5 segment Solid Rocket Booster (SRB), this was the good old STS 4 segment SRB.
Ares I will use the J2-x powered upper stage, this was a weight equivalent mock-up.
Ares I will use the Orion capsule and it's engine to finish up the orbit, again, just a mock-up with right szie and weight.
Ares I flight control software not built yet, but that's ok, as the hardware it will guide wasn't here either.

You know when the car companies build a clay mock up of that new model? That's about where this Ares I-x test was. Baby steps are ok, but I was hoping for more return on investment.

So I'm annoyed that the test program hasn't progressed further, but in reality, this is rocket science, and at least they got the thing off the ground in a reasonable fashion. The problems here go a lot further than my unease that NCSA isn't that far along for the time and money they've already spent. Here's a list of issues that they still have to face in making this a viable launch system:

What's the lifting capacity of the ARES I? 25mt? That was the declared goal. 24 mt? That was a compromise when other issues crept in. 20 mt? Where the current design is, but Ares I needs 25 mt of lift for an Orion capsule with safety features and lunar capability for 4 crew, and doesn't have it.

Also, when is the Ares I scheduled to fly with the Orion capsule, even in a non-man-rated test? 2013, as NCSA originally planned? 2016 as the Augustine commission recently claimed?? Before the Space shuttle stops flying? Before the ISS is de-orbited? Be nice for NCSA to have a way to get our astronauts to the ISS without "borrowing a Soyuz."

More importantly, how much has NCSA spent on the development of the Ares I to date? 5 billion? 6 billion? They still have to finish the 5 segment SRB design and tests, the J-2x Upper stage engine and tests, the new upper stage and tests and the Orion capsule and tests before any manned flights can take place. That's got to be another $5 billion easy. All this to get the lift capacity of an Atlas V or a Delta IV heavy and a theoretical better safety rating.

Lastly, one reason the Ares I was chosen was that it was supposed to be safer for the crew than any alternative. But there's this- http://www.newscientist.com/blogs/shortsharpscience/2009/07/death-knell-for-nasas-ares-roc.html. I feel sorry for the hard-working engineers at NCSA, and I hope that the new management can get them back on track with a better design.

Comment Re:Mixed Feelings. (Score 1) 266

Wow. Can I have some of whatever it is that you're smoking?

So do you put on your telepathic helmet in order to discern what it is that FSF really wants? Or do they you write secret emails, boasting about their plan to conquer the world? Perhaps they just beam this information directly to your brain.

There's no secret agenda here. The developer writes something and copyrights it, just like everybody else. For whatever reason, the developer then says, "Here, go ahead and use this. Do what whatever you want with as long as you respect my copyright. Here's a copy of the source code as a bonus, so you can see exactly how I did it. You know what? I'm feeling so generous that you can even have a copyright exemption in order to distribute this wonderful code as you see fit. One caveat though. Since I gave you the ability to see how its done with the source code, you need to give others that same ability when you distribute my work. If that's too much to ask, then just don't hand it out."

I do admit that I like your unstated base assumption- that only GPL'd software is worth having, and that by not having access to GPL, no computer would be worth anything. Let me take a moment and savor the thought of a world were anything other than GPL protected software was simply a joke... Ahhh. refreshing. Strangely though, I can't anyone thinking that's the way world is now, nor do see anyone claiming it should be that way.

As for defending freedom, I do believe no one has ever claimed that "Liberty is free", at least, not while sober. In fact, I can easily find many claims to the contrary. Here, try these guys Freedom Monkeys, they have a bunch of quotes. I suspect that those principles apply just as strongly to software liberty as they do for personal liberty. If you want your software to be freely available and usable, then it wouldn't make sense to hand it over to those who will just take it and hide it away. The GPL prevents this. Your way doesn't. Since your goals aren't aligned with those who choose the GPL, then you can simply not use the GPL.

How did you put it?

The solution is simple; we need to abandon the GPL.

Here, let's fix that.

The solution is simple; I need to abandon the GPL.

See? So much better for all of us.

Comment Re:Why? (Score 3, Informative) 266

mod parent up. The original post on this thread was just plain FUD.

You must:
1) give the modified GPL source code as well as the binaries to the person who is your client.
You have the option to
2) give the modified GPL source code to your client, and everybody else if you choose to.
The second option is not mandatory.

Comment Re:Willful ignorance. (Score 1) 759

From the article:

In the revised advisory, Microsoft explained why it won't patch Windows XP, the world's most popular operating system. "By default, Windows XP SP2, Windows XP SP3 and Windows XP Professional x64 Edition SP2 do not have a listening service configured in the client firewall and are therefore not affected by this vulnerability," the company said. "Windows XP SP2 and later operating systems include a stateful host firewall that provides protection for computers against incoming traffic from the Internet or from neighboring network devices on a private network."

Although the two bugs can be exploited on Windows 2000 and XP, Microsoft downplayed their impact. "A system would become unresponsive due to memory consumption ... [but] a successful attack requires a sustained flood of specially crafted TCP packets, and the system will recover once the flood ceases."

Looks like SP2 & SP3 do have this flaw- they just don't expose it normally, and even if they did, Microsoft claims that the consequences are less than dire. Not an unreasonable line to take. Probably not worth the hassle of patching, since the work-around is so simple- don't enable that.

Now claiming that it's not technologically feasible to fix it is a laugh; what they really meant to say was that it's not economically feasible to do so.

With actual Vista usage estimated at 30%, Microsoft has to do something to encourage the other 60% of the market not using Vista to upgrade. Getting some cheap and easy FUD against Windows XP is one way to push a large chunk of users towards Windows 7. Other efforts are underway as well. Nothing wrong with marketing your product, really, but doing so by promoting claims that your older products are unsafe has always struck me as unwise. It's one thing to say that "Our new Frobish 2000 is safer than ever" but claiming that "We no longer feel it's worth the effort to support the Frobish 1993, which so many of our customers use" is quite another. Some people might even form the impression that the company is interested only in new sales.

Books

Submission + - Orwell removed from Kindle

dlapine writes: "What's the difference between an ebook and the dead-tree edition? Seems that the dead-tree versions are harder for the publisher or middleman to recall. On July 17th, Amazon bowed to pressure from the publisher and electronically deleted versions of George Orwell's books, remotely and without warning to their customers. A refund was provided, but the irony involved in silently pulling 1984 from the electronic bookshelves of Kindle users is immense. "Congratulations! Your account has been increased to 0 books by George Orwell."

Still want to buy that Kindle?

More information here: some-e-books-are-more-equal-than-others"

Comment Clu (Score 1) 342

If you want a monitor that can display useful information about thousands of nodes on a single display try clumon. We use it for our 1000+ node clusters. The software was developed in-house but is available under the University of Illinois/NCSA Open Source License Copyright (noticeware). If you're just going to use this in-house, the license shouldn't be an issue.

You can see a sample clumon display of a working cluster at NCSA Linux Cluster Monitor.The clumon page for that cluster shows you each the job status of each individual node (if the node is colored, it has a job assigned), the load on the machine (the height of the line is proportional to the load, and red tips show loads over 1.0 per cpu) and the service status (green underline is ready, yellow/black stripes is offline, and red is unexpected offline/no comms). If you mouse-over a node, a status box pops up with more information on that specific node.

As this was designed for a cluster with the Torque resource manager, it won't be exactly what you need, but since you are willing to write a monitor from scratch, it might be a really useful starting point. Design-wise, this monitor allows the engineer or manager to see what's going on in general, with problem areas being immediately obvious, and without being overly cluttered.

The open source Performance Co-Pilot software runs on each node to collect information, which is polled by the central server. Back end is MySQL. The dynamic display is PHP.

Straightforward, useful and very configurable.

Comment Re:Using hard drives as removable cartridges (Score 1) 393

I wouldn't recommend using rotating-platter drives for "long term" archival storage, if by "long-term", you are talking more than 5 years. The lifespan of modern drives is such that 5 years is possible, but no guarantee.

The choice of format certainly won't be a factor in the ease of retrieval in the next 5 years, and probably won't in the next 10. ATA 1 was approved as standard back in 1994, and most motherboards today still have an onboard connector that supports it. That's what, 15 years of complete support? Any reason to believe that they will stop selling usb adapters for ide anytime soon? If you're concerned with sata's lifespan, just buy the $20 usb-to-sata adaptor now and you're covered. And realistically, what other drive interface would you suggest for home backup? SAS? Sata is the cheap, reliable and fast option these days.

The big issue with USB is that it is too slow for practical backups when the data involved approaches 1TB. With most USB external drives, you'd be lucky to break 20MB/s for sustained transfers. That's 50 seconds per GB, or almost 2 hours to backup the lot. The original poster was describing his effort to backup his media collection, so assuming that his backup needs involved hundreds of gigabytes of data is not too far fetched. Sata transfer rates on modern drives should be 50-60MB/s sustained, and quite possibly higher. This gives you a backup time of less than an hour, which is a lot more practical.

The external usb drive option also has a higher cost. The Freeagent unit adds about a $50 premium for each extra drive, not reasonable for a single unit, but quite expensive for a good swap set of 4 or 5 drives, and an unnecessary duplication of equipment. I'm not knocking the concept, but in practice, the external USB units are not as cheap or fast as a mobile tray and standard sata drives.

One could make a case for external drives with esata support, but you'd still be looking at an extra cost of $50 per drive, and a duplication of hardware. No thanks.

The great thing about this concept is that once solid state drives get to the point where they are cheap enough, they are a drop in replacement for the rotating platter drives you used to use. Instant upgrade in both reliability and speed. Assuming of course, that some manufacturer gets a clue and releases said drives in the 3.5" form factor. Don't get me started...

Comment Using hard drives as removable cartridges (Score 5, Informative) 393

If you'd just like to store your data off the PC, and you need "unlimited" storage, get a sata hot-swap mobile rack, a bunch of drives and presto!

Specifically, this is what I use.

Get one of these - http://www.newegg.com/Product/Product.aspx?Item=N82E16817994057 and install it. Its' hot swap, and tray-less, so it treats the sata drives like cartridges. It's about $25.

Find out if your motherboard supports sata hot swap - if not, you'll need one of sate card that can do hotplug, try this - http://www.newegg.com/Product/Product.aspx?Item=N82E16816132003. It works and it's about $25 as well.

Then determine your storage needs- 1TB drives can be had for as low as $75, but that's for relatively cheap drives. The better ones are about $100. 1.5TB drives are available for $130. The 2 TB still command a premium price at $280.

I'd recommend the 1.5's.

Buy a few of them, just like you would buy tape cartridges. Geek tip- if you buy several(4-5) drives at once from Newegg, they ship them in a styrofoam shipping thing, that has slots for 3.5" drives and works wonderfully as shelf container. You keep the anti-static bags the drives are shipped in, and put them on the drives before stowing them in the styrofoam form.

There, you now have the equivalent of a tape drive and cartridges, for all of $50 for the "drive" and cartridges at the price point you want. Unlike cheap tape, you get sata speeds, no vendor lock-in, and your data on a medium that is universal.

All that being said, you have do your backups as if the drives were tape cartridges- that implies a cartridge (drive) rotation system, data stored redundantly on multiple cartridges, regular backups and verification, etc. It won't do you much good if you don't follow the proper backup steps. Here's a guide to doing it properly- http://www.structuredsolutions.net/whitepapers/Tape%20Backup%20Procedure.htm

It is a nice piece of kit, however. It's up to you to use it properly.

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