Alan Cox Files Patent For DRM
booooh writes "Alan Cox has filed a patent for DRM (Digital Rights Management). From the filing: 'A rights management system monitors and controls use of a computer program to prevent use that is not in compliance with acceptable terms.' According to the patent pledge of Cox's employer Red Hat, they will not license this technology if the patent is granted. And it can probably be applied to the DRM that is in Vista. This forum has a few more details.
I KNEW I should have kept using LimeWire instead of paying for songs on iTunes!
"No matter where you go, there you are." -- Buckaroo Banzai
Either the patent system will be proven rotten, or DRM will be halted! It's a win-win!
My new blog
You should think that someone had thought of this before?
It might be something that reduces the threat of DRM completely making our computers useless.
Not all conservatives are stupid,
but it is true that most stupid people are conservative.
- Hume
Microsoft has got its back protected: http://www.google.com/patents?vid=USPAT6330670&id= tNcIAAAAEBAJ&dq=digital+rights+management
Had it been any other sort of technology, filing a patent for it and then refusing to license it, thus crippling adoption of that technology, would be considered a terrible thing on /. But in the case of DRM and RedHat, I think most would make an exception.
/. thought Novell was a fine upstanding company until recently.
But I'm still not that excited. Most on
He might as well try and patent the airplane. If he really wants to prevent further spread of DRM, he should use his energy educating people about it's true costs. The only people who are going to read about this already know about DRM.
--
WHO ATE MY BREAKFAST PANTS?
I for one welcome our cox overlord.
welcome our intellectual property owning masters, but I'm not sure if there is a patent on greetings or not?
As patent law, legalese and such is not my area of expertise, I'm out on a limb here, but doesn't this sound like a patent for saving the state of an DRM-aware application before exiting if a DRM-breaking state occurs, thus making legal DRM-aware applications even more annoying to use?
Wow, that would be a good shot in the back! I can't imagine how there's no prior art, but it'd be really sweet to have DRM patented by someone in the OS community.
(Can anyone find who the patent is actually registered to? Is it Alan Cox, or Red Hat, or is "Wilmer Cutler Pickering Hale And Dorr, LLP patents" the name it will actually be registered under?)
Its like the one ring being destroyed in Mt. Doom
Wont all this attention alert the patent office to the real reason they are seeking a patent?
Libertarian Leaning Political Discussion Forum.
patent outsource of torture
I do not believe in karma. "Funny"=-6. Do good and forbid evil. Yours, Oft-Offtopic Flamebaiting Troll.
Surely if this "can be applied to the DRM that is in Vista", then there is prior art, and the patent is invalid?
This probably won't be granted, due to the gobs of prior art around
95% of all computer errors occur between chair and keyboard (TM)
You see, he's not trying to patent DRM as a concept, he's trying to patent the technology of DRM system state saving. While this patent may have little value itself, it might be a show-stopper for Apple, Microsoft and the like. IANAL, but I suppose that Red Hat lawyers have studied the piles of MS et al DRM patents and Vista license agreement, and have found a hole in it [i.e. something that they use in the license or in their technology but haven't patented]. And now that Vista is getting ready for launch, Microsoft gets this blow. Let's keep our fingers crossed and see what follows.
Two possible outcomes: The patent is granted or it's not. If the patent is not granted, which is very likely because there is a ton of prior art, then this just paints the Open Source crowd as leeches who need to latch on to someone else's inventions to get anything done. It's not like many people don't think that anyway. If the patent is granted then this obviously shows that the patent system is flawed, but rest assured that the issue will then be solved before courts in no time, which "proves" that there are checks and balances, so everything can continue as usual. Either way it will be proven that the patent system actually works, because a patent troll has been defeated, and on top of that it will be shown that the people who most adamantly argue against patents a) don't refrain from trying to use the system to their advantage (double standard) and b) file patents for other people's inventions, which we all know is STEALING (or intellectual theft or somesuch).
FrostWire - all the *ahem* benefits of using Limewire, but without the annoying "Upgrade to Limewire Pro" popups.
"The dew has clearly fallen with a particularly sickening thud this morning"
Has anyone patented patenting something yet?
For the record, I laughed so hard when I read the headline that most of the milk came out of my nose (I was eating breakfast).
Go go OSS humor!
Good idea, lets publicize a patent that might have been able to slip past Apple, Microsoft, etc...
Except that, by bringing it to the public limelight, you've just guaranteed that the aforementioned companies will attempt to get the patent thrown out due to section 102 a or b of Title 35 of the US Code (Patents).
GLaDOS for President 2016! "Well here we are again. It's always such a pleasure." -- GLaDOS, 2011
Seems like the following patent application may be more suitable for stopping DRM
http://uncyclopedia.org/wiki/Time_Travel_Patents
Jolyon
Please read my Canon EOS tech blog at http://www.everyothershot.com
Why can't open source companies just go around patenting everything, then locking up the Evil(tm) ideas forever and releasing the Good(tm) ideas for free use by anyone?
I mod down anyone who says "I will be modded down for this", regardless of the rest of their comment
But with totally obnoxious terms. Red Hat could enact some kind of fee whenever DRM-protected content is played, essentially turning the whole DRM world into pay-per-view. And then there would be the price increases, linked to the average price of cable TV. I even have a name for it: Digital Rights Restriction -- Genuine Annoyance Edition. It that's too long to fit in a banner ad, they could just call it "Revenue Assurance".
The key is not to make money, it is to drive home the high cost of DRM, making the downside totally obvious to all. Remember, no matter how ridiculous the terms might be, it really won't be any worse than the copyright industry will do all by themselves in a few years. But instead of using the salami-slice method, the all-at-once/in-your-face method forces everyone to confront the issue here and now.
I think the DRM patent is a really nifty strategy, and presented here on Martin Luther King day, no less!
Of course someone had surely thought of DRM before, and here he is.
The lovely part is using MS's own submarine tactics against them. If only Warren Buffett would sell short, then crank this patent suit and any cousins as far as they can go...
Oh gawd, if someone can actually land this and not "settle for $5000", EVERYONE has overcommited their 5-year business strategies to DRM. Come on, reel in all twelve of the eight-ton sharks polluting our media culture.
The captcha phrase is develops.
My first Journal Entry ever, in 8 years! http://slashdot.org/journal/365947/aphelion-scifi-fantasy-horror-poetry-webzine
From the disclosure:
What is claimed is
1. A method of controlling use of a computer program, said method comprising the steps of: monitoring usage of said computer program for at least one instance of a rights violation event; saving, upon detection of said rights violation event, state information pertaining to said computer program; and suspending, upon saving said state information, operation of said computer program.
This is an awfully broad claim. I would think proving prior art here and invalidating the claim would be pretty easy.
Download my free songs!
Rights Management System or Richard M Stallman ....
hmmm
A patent is only useful if you have the money to defend the patent in court. Same with a trademark or copyright. Without lots of cash a patent is an empty threat.
Even if this is invalid, look how much of a fuss SCO and MS have created with BS IP claims. I'm sure if Mr. Cox has paid attention, he can make a few heads turn. Or at least provide us with some amusement.
The Red Hat statement on patents is such that they won't enforce it unless there's reason to retaliate.
Far from trolling, this is protection from trolling.
Wikileaks, no DNS
I shall not comment on the likelihood of the patent being initially granted. Let's assume it is. Cox is then proposing to prevent anyone using DRM by refusing to license it to anyone on any terms. The trouble with that is such an action is grounds to cancel the patent. There are conditions in patent law designed to prevent anyone taking out patents with the objective of preventing the use of the embodied inventions. These were designed to prevent unfair competition, but will still apply.
It's quite clever, actually. Any DRM-aware application that doesn't save state before shutting down will be vilified as being broken the first time anyone loses important data because of a false positive, and any DRM-aware application that does is in violation of this patent. This makes any DRM-aware application either a) broken, or b) illegal. Very neat. Simple, but neat.
Reality is the ultimate Rorschach.
Flamebait? "The threat of DRM completely making our computers useless" is not a contraversial statement. Even if you really like DRM, you can probably think of some examples where it has been taken too far: think Sony rootkits, Starforce CDROM damage, and Jon Johansen and Dimitri Skylarov being arrested for hacking their own computers.
Read up on TCPA immediately. Consider how much of the design of Vista has been aimed at preventing access to high-quality copies of information protected by DRM. Should the film industry really have been allowed to design an operating system?
>north
You're an immobile computer, remember?
Or was that deliberate? I *should* preview before submit.
Chat with other atheists http://secularchat.org
and Novell ends up with the power to block or license the technique of DRM to anybody it sees fit
Why exactly are we convinced that Novell will just bury the technique and shield us from DRM forever?
Novell is a publicly owned company and has a duty (legally) to earn money for their shareholders. I cannot see of a situation where they'd make more by sitting on it, than they would by licensing it - If I was a shareholder in a company that got this patent, I'd want them to make me money.
Whatever their intentions are going into this , unless they produce a cast-iron legally binding document promising otherwise, this just means that all DRM will have another kick-back to Novell on it.
rgds
so this isn't new
Your product is only covered by the patent if it fits all the claims of the patent.
From the patent:
A rights management system monitors and controls use of a computer program to prevent use that is not in compliance with acceptable terms. The system monitors usage of the computer program for usage and activities that are not in compliance with the license or other use terms. Upon detection of a violation of these terms, state information pertaining to the computer program is saved and operation of the computer program and/or a portion of the computer system is suspended. The system maintains the suspension for as long as the violation exists. Once compliance has been reestablished, the suspension is terminated.
All Microsoft has to do to get around his patent is make it so that, once DRM breaks your computer, it stays broke. (Until you do something. Like, the infamous "format and reinstall".) (Which, BTW, you can only do once.)
Perhaps you meant Redhat?
The current attack vectors on cryptographic based "DRM" schemes are (1) accidental key leakage, (2) the key exchange system or (3) the fact that the data must be eventually decoded.
Note that (3) is what makes DRM systems very dumb. It also follows that the Operating System must get involved in order to so hide the data.
If the Operating System allows a debugger to run AT THE SAME TIME as the "DRM", its attackable. If the OS allows "unsigned" drivers to run, its attackable.
The OS (for example, Vista) will (eventually) not allow unsigned drivers. It must also "kick out" or "suspend" all non-DRM (unsigned) software when DRM content is played.
This behaviour falls into Mr. Coxs patent.
Now, if (Vista) doesn't implement the scheme, it remains vulnerable. So, the problem must be solved another way.
My suggestion then is to ALSO patent (or disallow) by widely publishing the idea that a hypervisor (VM supervisor) can be used for DRM control as well, and can also be used to suspend, terminate or otherwise control applications that could be used to attack DRM software.
Got that? It's now published.
Just another "Cubible(sic) Joe" 2 17 3061
I didn't say that my post was protected from trolling ;o)
Wikileaks, no DNS
...I'll tell him to be on the lookout for any coworkers who show up with new Porsches, Corvettes, etc., in the coming weeks. I think it would stick out just a little.
"Ladies and gentlemen, my killbot features Lotus Notes and a machine gun. It is the finest available."
Nonsense.
The claims are alternatives; if you infringe any claim then you infringe the patent.
Typically there are a few broad "independent" claims (including claim 1), and a bunch of other claims that add extra bits. For example, claim 1 might say "a widget that does A", and claim 2 might say "a widget according to claim 1 that also does B". This means that there are nice broad claims (claim 1), but if the broad claims are invalidated by prior art then you can maybe keep a few of the more specific claims (claim 2 - maybe there's prior art for widgets that do A but not for widgets that do A and B).
Not if you unconditionally save state before checking DRM, so that it's already saved should it need to suspend.
The revolution will not be televised... but it will have a page on Wikipedia
Considering the BS sabre rattling MS has been doing via Ballmer with regards to "potential" Patent problems with Linux it might be strategic instead of stupid. As long as we have the stupidity of Patents in their current form, it's inevitable that you will have companies doing this sort of thing.
I am not merely a "consumer" or a "taxpayer". I am a Citizen of the State of Texas
This seems like something we should all hope will fail. If it is true that Linux violates 283 patents, or even if it is not, attempting to prevent a major industry from asserting DRM can do much more harm than good.
If granted and enforced, the best case scenario is that people working on the kernel and other major software components (like SAMBA) will finally get an opportunity to become patent experts and remove any patented code. In many ways here, ignorance is bliss.
Some may argue that Red Hat will exchange the use of this patent in a patent swap, e.g. licensing it to Microsoft/Apple/etc. in exchange for permanent indemnity against all potentially infringing technology in publically available source code (or similar terms). The likelyhood of this happening, of course, is virtually nil.
What no one gets is that DRM is a big compromise. Like all security its a balance between keeping things usable and keeping the media suppliers and the customers happy.
In a commercial world commercial companies have no requirement to sell anything to any one. So if you say I'll not buy it because it has X or does Y then that's your prerogative. It's the company's prerogative not to sell you something. It is the company's commercial decision to decide how many sales they are happy to lose that way.
So if this goes through. That doesn't suddenly mean that you'll be able to buy any media from any store and play it on any player. All that will happen is that some products will lose their DRM and others will be taken off of the market and online stores will close because the media companies wont be happy to allow their wares to be out there unprotected regardless.
So who will win from this? A bunch of evangelistic techie nerds who put their own principles over pragmatism. And who will lose? Basically you average Joe who's one of the many who's bought an iPod and one of the 2b downloads from iTunes say. And for us in between? I'll not lose out because DRM doesn't affect the CD rips I do and I never download pirated music anyway since most of the bands I listen to are small independent ones who sell CDs directly or through small record companies and who need every penny they can get...
If not, it is open for patenting. Unless the technology has been released more than a year beforehand.
However, for it to be released, you'd need to have produced the source code or description that is human readable. Microsoft (and all CSS companies) don't do that, they rely on trade secret to protect the human readable elements. If it's a trade secret, it isn't prior art.
Man, if there was a "-1 idiot".. .. sadly, there's a "-1 flamebait". :(
Microsoft? They're not huge DRM supporters by nature
Say what? I have just three words for you.
Windows Genuine Advantage.
Fascism starts when the efficiency of the government becomes more important than the rights of the people.
Tomorrow's news today: Microsoft buys Red Hat with petty cash and now owns the entire world.
"It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
And who will lose? Basically you average Joe who's one of the many who's bought an iPod and one of the 2b downloads from iTunes say.
So basically Apple customers?
Well, that's just awful. I can't imagine anyone wanting to harm such a fine, upstanding body of people.
What could they possibly have done to deserve it?
You would think from this that they spend all their time whining on-line, annoying people and defending DRM just because it's a product of the shining beacon of anal light that is Apple. And that's just absurd.
Property is theft. You're a moron.
PCT/US04/42423 was filed a year later claiming the benefit of this filing date of the US application. I have no idea what other "designated offices" have been elected; what other patent offices will accept software claims?
Also, according to a recent PTO Official Gazette The art unit to which this application is assigned has been giving first actions on applications filed about the time of this one, so perhaps an action will be forthcoming soon, although it depends mainly on the individual examiner's docket when the application must be acted on (oldest new application in docket must be acted on within two biweeks).
Exactly. It forces DRM to be nasty (unless you licence this patent) and therefore harder to shove down consumers' throats.
Even if Red Hat licenses this patent out for an exorbitant amount of money (which it would have to be, considering DRM really hurts Red Hat's business), it will serve to fund the development of free alternatives to DRM-infested software.
http://outcampaign.org/
Because media companies are very happy to not sell you anything and not make any profit just because they can't forcefeed you DRM. If DRM is banned, either they sell you non-DRMed media or they die. If you truly believe they'd rather die then sell you non DRM'ed media... well. DRM is just a way they found to maximize their profits. If they were obliged to have less profits, they would do it anyhow. Unlike us, they do not have any moral instances on DRM.
Where is that guy who'd die defending what I had to say when I need him?
I'd say you have some issues, but it sounds like you have the whole subscription.
Hahaha!! Booyah... IP law bites corporate America in the ass! W00t! The irony is seeping out of my router as we speak.
... ever added to certain standards ? If not to protect against suddenly appearing patents that kill the standard, why would they protect any standard with an agreement such as RAND ? If it is true what you are saying, RAND is not necessary as the law can always override it.
And even if it can override it, perhaps it is pretty difficult to achieve (plus costly...).
Slashdot: stuff for news, nerds that matter, matter for news, stuff that nerd
The biggest opposition to DRM seems to be media players. How much pertinent state is there really to save in a media player?
The content providers are going to do whatever they have to to not be in violation of this patent while still delivering DRM-protected content. They simply aren't going to do business without protecting their interests to the fullest extent that the law allows and that the customer accepts. And right now, most consumers seem to be pretty accepting of DRM (see iTunes).
Sorry, I meant to say "The biggest use of DRM seems to be media players." I started a thought with "opposition", but decided to start from a different angle, and must not have cleared the sentence.
For some reason I got Suse and Redhat mixed up
*smacks head into desk*
That's true. I hadn't thought of that.
Reality is the ultimate Rorschach.
There are a few examples of good DRM such as with Steam. This allows you to install on as many computers as you want and doesn't suffer the Music related problem of incompatibility of devices.
09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
So defending DRM is whining but complaining about it isn't? If you don't like what's out there go and make something you would like. That's your right. Just as it's my right to pay Apple to give me a device with DRM in. I'm not defending DRM I'm defending my right to choose what I do with my money without some sour busy body putting their oar in and spoiling it for me.
Prior art: the 10NES Checking Integrated Circuit (CIC) in the Nintendo Entertainment System, 1985. Prior art: the digital signature on games for Atari 7800 game console, 1986.
And that was in insightful post. I vote for +1 Troll and -1 Troll to be added.
If it's RedHat, I'd rather he didn't patent this. I trust good ol Alan. I don't trust a corporate entity. Their interests change. If, say, five years from now IBM buys RH, we may very well see this patent enforced.
I gotta say it isn't so much DRM I dislike. I've been hit with DRM issues in one of my latest projects. Got around it easy enough. Not all files have are easy to get around though- think tech demos from companies or somesuch. My problem with DRM is the authentication part. How do we know in 5 years if the server the machine needs to contact is around to "allow" me to use what I have purchased. That's my issue. Machines move like formats. In 5 years I'd still like to listen to my music and my movies without fear that the companies who placed the DRM on their files is still around, let alone running servers to let you use what you have.
I think that Alan did the best thing for DRM than anyone has ever done. RedHat won't license it if the patent is granted and Alan will be soul owner. I want a piece of his action! Hell, I'll even pay for his lawyers!
Anyhting that prohibits "fair use" is bad. DRM is a virus that invects everywhere.
Athiesm is a religion like not collecting stamps is a hobby.
Never try to teach a pig to sing. It will only waste your time, and annoy the pig.
My beliefs do not require that you agree with them.
Something that I thought of while responding to another message...
DRM-protecting online music sales does absolutely nothing to prevent people distributing copyrighted music illegally online. The fact that both action stake place online is a red herring: the two areas are completely unrelated. Whether the "pirate" got the copy he's distributing online from iTMS online or Borders down the street is irrelevant.
If the labels really wanted to do something about people sharing files they'd have Apple remove the DRM from the iTunes version, and instead watermark each track with a hash of the credit card number or other identifying information of the person who purchased it. Then when they found a copy online they could simply give Apple the watermark and get the identity of the person who originally distributed it.
Of course, any savvy "pirate" would filter the file and remove the watermark - but any savvy pirate would be ripping the higher quality version from a CD in the first place. After a few high profile cases, people would be less likely to share a downloaded track than one they ripped from a CD. Pretty soon the labels would be experimenting with un-DRMed watermarked online-only distribution to protect their copyrights.
So, who's going to patent this one?
Wouldn't dvds and hd dvds (more so for hd) fall under DRM protected data? \
\
It wastes your time, and annoys the pig.
Weaselmancer
rediculous.
They will not go bust, just back to more traditional forms of media sales.... you'll have to buy them ... as CDs ...
Which are not DRM-protected
See Better copyright protection than DRM....
First, there's already code to prevent cheating by monitoring what you run on your computer built in to the games, so people playing multiplayer online games are apparently willing to accept draconian restrictions on what they can run on their computer as a condition of playing the game.
Second, you can't play a multiplayer game without servers, so it people don't care if it has to connect to a server to authorize or decrypt local data, if the company's defunct the game's useless anyway.
But most importantly, the vast majority of these games don't need DRM to enforce payment. They can give the game away without any protection at all, since you need an account on their servers to log into them.
This is really not readily generalizable beyond the gaming market.
What if this is a patent to stop Microsoft if they try to make the hardware companies include the ability to ruin the hardware on which a pirated system runs. If such hardware sees the light of day then anyone with a marketshare under 90% won't have any hardware to run their software on.
+1 Agree -1 Disagree
You can't patent something to withold a third party from using your proprietary technology. The whole point of the patent system is to allow you a head start on competition. If you do not make the technology available yourself, a judge can force you to license it out to someone who will..
Double-edged sword??!
Look, now he's actually trying!
Quick, quick! Mod him up!
Then that patent would be totally invalid, if patents were anything but a suffocating scam.
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make install -not war
It's an obviously frequent /. misconception that disclosing prior art invalidates a patent/application. The fact is that a similar prior art search and disclosure is a necessary part of the patent search and application process. It proves that one has done one's homework. What needs to be shown is that the patent applied for differs from prior art in a *significant enough* way as to validate the request. Discovery and disclosure by another party of prior art not covered in the disclosure AND of a nature that shows that the request is not unique enough to merit a patent CAN and SHOULD invalidate the request, but this is not always the case.
The Inventor's Handbook (http://web.mit.edu/invent/h-main.html) describes this and many other relevant points in a manner far more readable than the patent laws.
"I may be synthetic, but I'm not stupid." -- Bishop 341-B
"I don't like the fact that my car has a chip governing it to 125MpH."
So disable it. You've every right to, and if it's any of the ones I'm familiar with, the dealer will be happy to help you with it too. They'll also sell you tires that won't disintegrate at 130; Which is what the stock ones will do, which is of course the whole point of that chip.
Not sure what the relevance to DRM is, except to show you're an idiot that doesn't know what he's talking about, but the rest of your post makes that pretty clear anyway.
imho, ppl will avoid using intrusive drm applications in the first place. I guess he could submit it for inclusion into the kernel and then linux distributions could enable it by default... lol ;-)
Well, wait a minute. If the patent's claims could be enforced against existing DRM systems like those in Vista, then those systems would constitute prior art for the patent. The only way a DRM system could violate the patent is if the system performs one or more of the claims made in the patent. But if a pre-existing system performs one of the claims in the patent, then the pre-existing system constitutes prior art for that claim, invalidating the patent.
I'm not saying the patent can't be granted, but I don't see how it can be applied to Vista, unless it was submitted in 2004-2005, before information about Vista's DRM was made available.
We are the 198 proof..
DRM systems existed long before the filing date - what was legal then can't be illegal now just because it was patented afterward; it would implicitly be prior art.
I don't trust Red Hat - what is to say that down the line Red Hat won't make their own DRM system?
"Screw Sun, cross-platform will never work. Let's move on and steal the Java language." - Visual J++ Product Manager
Next time you think of something like that, you (at least attempt to) patent it first then tell us about it afterwards.
that would completely break my "not bothered" image thing I got goin on here *lol*
:-p
Seriously, effort. Besides, it's "published" now, it's out there, it's safe
The revolution will not be televised... but it will have a page on Wikipedia
Wait, is that .25 cents or 25 cents? You don't happen to work for Verizon, do you?
That doesn't suddenly mean that you'll be able to buy any media from any store and play it on any player. All that will happen is that some products will lose their DRM and others will be taken off of the market and online stores will close because the media companies wont be happy to allow their wares to be out there unprotected regardless.
Fine. Given a choice between no online media sales and the elimination of general purpose computing that the **AAs want, I choose the former.
So who will win from this? A bunch of evangelistic techie nerds who put their own principles over pragmatism.
Techie nerds like Steve Wozniak. If the **AAs have their way, guys like him won't be able to get the hardware and software they could use to create the next big thing. Sorry, I'm not prepared to reduce the chances of technological breakthroughs that benefit all of humanity so that you can have an easier time buying Shakira albums.
How to solve most of our problems: 1.Lots of nuclear plants. 2.Cure aging.
Trolls aren't what they used to be. But then again, I guess being made into a twisted parody of nature enslaved to Morgoth by a second rate hobbyist fantasy author and be forced to remember your time as a relatively benign mythological being from Scandinavian folklore all your miserable existence would do that to you, I guess. And the movie trilogy, which makes mockery of both your original and Tolkien-corrupted nature, would certainly not help.
You do realize the origin of "trolling" stems from the fishing term, right? You're right, though. The term definitely ain't what it used to be.
"It is seldom that liberty of any kind is lost all at once." -David Hume
True, but slow
Nah, you can leave the VM to do it these days. Something like, the OS writes any dirty pages to a backing store (file rather than anonymous) when they don't get used for a length of time. If the program resumes quickly, it's all still in memory. If you stay suspended for a while, pages will start being written to disk. If the program gets terminated, the remaining pages can be flushed quicker to disk. The memory can then be reclaimed if it needs to be, and you swap back in as you need on resume. The application code and data itself will already be memory mapped to the binary, so nothing extra required here. The OS can be told not to swap pages out during normal execution unless resources are low, as with anonymous swap. Depending on the application, size of data etc, and how much of that data gets changed regularly, you'd wanna tweak writeout patterns.
EROS was a research OS that applied this kind of persistence across the board. If you ran a DRM prog on top of EROS, everything I described above would basically happen automatically, without needing to add any code to the app, as part of the way the OS Just Does Things(tm).
The revolution will not be televised... but it will have a page on Wikipedia
I had forgotten VM. But forcing sync on every change can still be a performance problem, I think.
I'm sorry for your weak personality and your emotional issues. Have a nice day
When my Karma level reaches 0 I feel in piece with the Universe
"But forcing sync on every change can still be a performance problem, I think"
Yep, but you wouldn't need to, the OS can keep it in memory, syncing to disk at low intervals, before suspend (something you'd probably wanna do anything, and means it's already on disk when you recheck drm on resume), and before freeing the pages after the program exits. Is just treated like a swap file, specific to that memory range, that's persistent (unlike anonymous swap, which is freed from swap once the page is unmapped from the address space). If the app gets suspended due to drm fail, the pages are frozen, and the OS can take its time writing them out (then freeing the pages for other processes if memory is needed, and read back in when the app resumes - pretty normal behaviour)
The revolution will not be televised... but it will have a page on Wikipedia
It's just a way to get RedHat (which is boring and lifeless these days) back in the press. Business is business, and any news is news.
Cox is just pumping up his net worth, no worse or better than any other company big wig.
See through the hype surrounding the initials "DRM" and think about the real world outcome of Alan Cox turning in such a patent... RedHat gets noticed again, Cox gets noticed again... etc. Merry-go-round.
Nothing new to see here, move along, or join the parade of Slashdot Lemmings to run and squeal and jump for hyped up joy, making themselves no better off, but making Cox and the gang quite a bit of real world monetary value.
Not that handing money to them isn't probably a good thing, compared to handing it to others... but people, really -- it's just a marketing ploy. No better/worse than the ones from Microsoft.
+++OK ATH