Linked by Thom Holwerda on Thu 19th Mar 2009 06:44 UTC, submitted by Moulinneuf
As he had already predicted, cracker Charlie Miller has won the PWN2OWN contest by cracking Safari and Mac OS X within seconds of the start of the competition. "It took a couple of seconds. They clicked on the link and I took control of the machine," Miller said after his accomplishment. He took home the USD 10000 prize, as well as the MacBook he performed the exploit on. Internet Explorer 8 fell a while later by cracker Nils, who also cracked Safari and Firefox after being done with IE8.
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Member since:2006-02-05
The problem in the case of .net isn't performance, it is several thousand man years worth of legacy code. Anything new is done in .net.
Anything in the GAC (global assembly cache) only gets loaded once, which includes the core libraries. Also, there is only ever one runtime running (as opposed to java/ruby/python/etc), and individual programs are segregated into "AppDomains" under that single runtime.
Member since:2007-09-08
Also, there is only ever one runtime running (as opposed to java/ruby/python/etc), and individual programs are segregated into "AppDomains" under that single runtime.
Except when it isn't.
Application domains can be used to host multiple applications inside a single OS process. However, the app domains are implemented as multiple copies of the .NET VM running inside a single process. Even if you have a single process with 10 application domains, you still have multiple VMs, which are deliberately kept isolated from one another. Big deal - pretty much any VM runtime can do that.
That's how the .NET VM is hosted inside SQL Server, how it's used in IIS for ASP.NET websites, and how it's hosted as a COM object inside other applications.
However, that's not how most .NET applications run. If you run a .NET application, a new process will be created, creating a new instance of the .NET VM along with it.
What it can do is pre-compile the assemblies in the GAC to native code. That way, the native code can be shared by any application using it - the runtime just mmaps the code to memory, and the OS just maps the same block of memory into each VM's address space.
That's something that other VMs don't do yet, although I believe Sun were working on some sort of JIT cache for Java that'd perform the same role.
News
Linked by Thom Holwerda on 05/25/13 0:45 UTC
"So in summary... Google has pulled the plug on support on a protocol they've helped popularize, after years of promising interoperability, for reasons that are dubious at best, and in a way that leaves people who don't jump to the new Hangouts app unable to talk to their contacts without any feedback that their IMs aren't getting through... And they've done that with no warning to anyone. I imagine there's a bunch of people out there wondering where some of their buddies have gone, or why their messages aren't getting responses, because this isn't documented anywhere." Google really messed this up. Such a dick move.
Linked by Thom Holwerda on 05/24/13 23:59 UTC
The Tizen Greek Community has some screenshots of a very recent build of Tizen running on a Samsung GT-i8800. It looks wholly unremarkable.
Linked by Thom Holwerda on 05/24/13 22:33 UTC
Joint statement to The Next Web from Microsoft and Google: "Microsoft and YouTube are working together to update the new YouTube for Windows Phone app to enable compliance with YouTube's API terms of service, including enabling ads, in the coming weeks. Microsoft will replace the existing YouTube app in Windows Phone Store with the previous version during this time." Good to know these children stopped acting like little pricks. Can we have full Google support in Windows 8 now, please?
Linked by Howard Fosdick on 05/24/13 21:41 UTC
Yahoo is acquiring Tumblr, the microblogging and social networking website, for $1.1 billion USD. Tumblr offers little revenue but lots of eyeballs if Yahoo can monetarize them. Now Yahoo is bidding for Hulu, the streaming video service. After years of ineffective responses while Google, Facebook, and others took large chunks of the online advertising market, Yahoo is fighting back. Can Yahoo reignite the momentum it had at the turn of the century? What do you think?
Linked by Thom Holwerda on 05/24/13 14:44 UTC
"Sources have described iOS 7 as 'black, white, and flat all over'. This refers to the dropping of heavy textures and the addition of several new black and white user interface elements." I couldn't be happier.
Linked by Thom Holwerda on 05/23/13 23:22 UTC
"Ilja van Sprundel, a security researcher with IOActive, has discovered a large number of issues in the way various X client libraries handle the responses they receive from servers, and has worked with X.Org's security team to analyze, confirm, and fix these issues."
Linked by Thom Holwerda on 05/23/13 22:04 UTC
"Google is facing a new antitrust probe by the U.S. Federal Trade Commission into whether the company is using its leadership in the online display-advertising market to illegally curb competition, people familiar with the matter said." Sucks to be Google today, apparently.
Linked by Thom Holwerda on 05/23/13 22:01 UTC
"In the midst of the major press blitz surrounding its annual I/O Conference, Google dropped some unfortunate news about its instant messaging plans. In several places around the web, the company is replacing the existing 'Talk' platform with a new one called 'Hangouts' that sharply diminishes support for the open messaging protocol known as XMPP (or sometimes informally Jabber), and also removes the option to disable the archiving of all chat communications. These changes represent a switch from open protocols to proprietary ones, and a clear step backward for many users." That's why I always say: only suckers trust companies.
Linked by Thom Holwerda on 05/23/13 17:52 UTC
"The wave of departures is a sign of internal struggle, but amidst all the bad news, there is a glimmer of hope. According to an anonymous HTC executive cited by WSJ, the crucial HTC One is selling 'pretty good so far'. The executive revealed that HTC sold about five million One units since launch, a performance that is deemed encouraging. However, sales have been limited by the persisting supply issues that still plague the production of the HTC One." Finally some good news for HTC. Five million units amidst supply constraints is very impressive.
Linked by Thom Holwerda on 05/22/13 22:23 UTC
"Sony gave the PS4 50% more raw shader performance, plain and simple (768 SPs @ 800MHz vs. 1152 SPs & 800MHz). Unlike last generation, you don't need to be some sort of Jedi to extract the PS4's potential here. The Xbox One and PS4 architectures are quite similar, Sony just has more hardware under the hood. Weâll have to wait and see how this hardware delta gets exposed in games over time, but the gap is definitely there. The funny thing about game consoles is that itâs usually the lowest common denominator that determines the bulk of the experience across all platforms. On the plus side, the Xbox One should enjoy better power/thermal characteristics compared to the PlayStation 4. Even compared to the Xbox 360 we should see improvement in many use cases thanks to modern power management techniques." AnandTech does its usual in-depth thing.More News »
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Member since:
2006-01-18
I hope Apple will spend considerably more effort in pushing Objective-C 2.0 adoption.
Well The issue with .Net is it is vm based, I have been using VM based languages for a long time now, and I would not see any reason to move vital parts of an os infrastructure towards a VM especially if it works well. (except for portability reasons) you will get a huge speed hit and memory consumption goes through the roof. It might be interesting for new applications but moving legacy code over is sort of a no go.
Same goes for apple although introducing GC only has minor impacts on mem consumption and speed, there is simply no reason to do it! Newer code can be programmed against it older code probably which never will be touched again except for bugfixing once in a while does not make sense to be ported over!