Linked by Thom Holwerda on Thu 25th Oct 2007 16:16 UTC, submitted by ParaFan
A thread on the OpenBSD -misc mailing list began by discussing whether or not XEN had been ported to OpenBSD, "is it planned at some point to release a paravirtualized xen kernel for OpenBSD 4.3 or 4.4?" Later in the discussion it was suggested that virtualization should be a priority for security reasons, "virtualization seems to have a lot of security benefits." OpenBSD creator Theo de Raadt strongly disagreed with this assertion, "you've been smoking something really mind altering, and I think you should share it."
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RE[2]: Theo has a point here
by Morin on Fri 26th Oct 2007 05:59
in reply to "RE: Theo has a point here"
Member since:2005-12-31
But OS/360 did not catch on. I also seem to remember that it was hopelessly bug-ridden (I guess that's a good definition for, "they didn't do it right").
Anyways, I wonder what the point is of having the VM layer emulate all quirks of the real hardware, just to have the guest OSes work around them again. If I'm hunting a million bugs anyway, adding complexity is the last thing I'd do.
If my memory serves me right, OS/360 wasn't really an attempt at security, than at backwards compatibility for already-written OSes on the same hardware (kinda like using Parallels to run Windows software on the Mac). While compatibility is an understandable goal, the net result is usually anything but perfect from an engineering point of view.
RE[3]: Theo has a point here
by sbergman27 on Sat 27th Oct 2007 16:34
in reply to "RE[2]: Theo has a point here"
Member since:2005-07-24
But OS/360 did not catch on. I also seem to remember that it was hopelessly bug-ridden (I guess that's a good definition for, "they didn't do it right").
Incredible that anyone would say such things. OS/360 didn't catch on? OS/360 made the *world* go round for *years*.
And there is *no such thing* as a "hopelessly bug-ridden" mainframe OS. That's almost by definition. If it's bug-ridden, it's not a mainframe OS. Reliability is *that* critical on this class of hardware.
News
Linked by Thom Holwerda on 06/19/13 23:02 UTC, submitted by M.Onty
"Microsoft has sensationally abandoned its controversial plans to restrict the sharing of XBox One games, and has also removed daily online authentication requirements for its forthcoming console", reports The Guardian. They had no choice. Still a good move.
Linked by Thom Holwerda on 06/19/13 22:28 UTC
"A snippet of code in the Steam digital distribution platform has revealed that Valve may be planning to let users easily share their games with friends in the future. The Verge has verified the code's authenticity, which was originally spotted by a member of the NeoGAF gaming forum; the code references a 'shared game library' and a notification that would alert a user when their games are currently in use by a borrower." This would change the, uh, game.
Linked by Thom Holwerda on 06/18/13 22:33 UTC
Official Apple statement on PRISM and privacy: "Regardless of the circumstances, our Legal team conducts an evaluation of each request and, only if appropriate, we retrieve and deliver the narrowest possible set of information to the authorities. In fact, from time to time when we see inconsistencies or inaccuracies in a request, we will refuse to fulfill it." This is basically Apple re-publishing their earlier statement in a more official manner. You either believe it, or you don't.
Linked by Anonymous on 06/18/13 22:26 UTC
The open source Contiki operating system and its commercial Thingsquare distribution are making strides towards the connected home. According to a Computerworld article, a new LED light bulb manufacturer is putting small computers into their light bulbs. Each computer runs the Contiki OS, which gives each bulb an IP address and allows them to be controlled with a smartphone application. To connect the bulbs to the application, the bulbs use both Wi-Fi and the much lower power IEEE 802.15.4 mesh technology.
Linked by Thom Holwerda on 06/18/13 22:25 UTC
"Google asked the secretive Foreign Intelligence Surveillance Court on Tuesday to ease long-standing gag orders over data requests it makes, arguing that the company has a constitutional right to speak about information it's forced to give the government. The legal filing, which cites the First Amendment's guarantee of free speech, is the latest move by the California-based tech giant to protect its reputation in the aftermath of news reports about sweeping National Security Agency surveillance of Internet traffic." Draining the ditch after the cow has drowned in it.
Linked by Thom Holwerda on 06/18/13 17:45 UTC
"I can't find one person who has been using the Nexus 7 for an extended period of time, and hasn't seen a massive downgrade in performance. Just what kind of downgrade are we talking here? I cannot pick up my Nexus 7 without experiencing problems like a lag of ten seconds, or more, just to rotate the display; touches refusing to acknowledged; stuttering notification panel actions; and unresponsive apps." Fully and utterly agreed. My Nexus 7 was blazing-fast and awesome for a few months, and at some point, it just started sucking. Just like that. I've tried loads of ROMs, and nothing helps.
Linked by Thom Holwerda on 06/18/13 17:32 UTC, submitted by poundsmack
A new release of the hobby operating system MenuetOS! The release notes are a bit non-descript, but you'll have to take what you can get: "updates and improvements (picview, httpc, ehci, ...)".
Linked by Thom Holwerda on 06/17/13 17:58 UTC
"The Internet is one of the most transformative technologies of our lifetimes. But for 2 out of every 3 people on earth, a fast, affordable Internet connection is still out of reach. And this is far from being a solved problem. There are many terrestrial challenges to Internet connectivity - jungles, archipelagos, mountains. There are also major cost challenges. Right now, for example, in most of the countries in the southern hemisphere, the cost of an Internet connection is more than a month's income. Solving these problems isn't simply a question of time: it requires looking at the problem of access from new angles. So today we're unveiling our latest moonshot from Google[x]: balloon-powered Internet access." Insane.
Linked by Thom Holwerda on 06/17/13 17:52 UTC
"MineAssemble is a tiny bootable Minecraft clone written partly in x86 assembly. I made it first and foremost because a university assignment required me to implement a game in assembly for a computer systems course. Because I had never implemented anything more complex than a 'Hello World' bootloader before, I decided I wanted to learn about writing my own kernel code at the same time. Note that the goal of this project was not to write highly efficient hand-optimized assembly code, but rather to have fun and write code that balances readability and speed. This is primarily accomplished by proper commenting and consistent code structuring." Just cool.
Linked by Thom Holwerda on 06/14/13 21:03 UTC
Jon Rubinstein, former CEO of Palm: "Well, I'm not sure I would have sold the company to HP. That's for sure. Talk about a waste. Not that I had any choice because when you sell a company you don't get to decide that. Obviously, the board and shareholders decide that. If we had known they were just going to shut it down and never really give it a chance to flourish, what would have been the point of selling the company? I think the deal we had with Verizon really hurt us, but who knew that at the time? These things are all hindsight."More News »
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Member since:
2006-10-08
"Similarly, a traditional OS separates processes completely as if they ran on different machines, but allows them to access shared resources, such as files or physical devices. This complete isolation was a great "selling" point of one of the first OSes which did it right: unix. (on a side note, I do not know to what extent pre-unix OSes achieved this goal). "
A comparable implementation has been present on IBM's S/360 (360/67) and S/370 in approx. 1970. They provided support for virtualizing hardware so that many different hardware environments could be simulated, which different OS implementations could make use of... IBM CP-67 or VM/370, if I remember correctly.
Of course, this implementation was not as capable as VMs are today, but they tried to achieve the same goal.