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Forums - Sony - I use OtherOS. Do you? And what for?

klystron said:
alephnull said:

It's just a conference paper so he's not spending a whole lot of time on it, but with all these things most of the time is spent on tweaking parameters, measuring op counts, cache misses, runtime, etc.

I've not run Linux on my PS3 (not enough ram to bother) so I'm not sure what profiling tools are available for its architecture. I guess it'd be PPC so probably all the traditional stuff is supported.

There's always gprof or manually reading from this cycle counter-like thing the cell has, but you probably want to use the cell specific CPC which is included in IBM's SDK.

There isn't much ram, but it has high bandwidth; so as long as your working sets fit it's not the end of the world. It's like a cheap Tesla box in that regard.



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alephnull said:
klystron said:
alephnull said:

It's just a conference paper so he's not spending a whole lot of time on it, but with all these things most of the time is spent on tweaking parameters, measuring op counts, cache misses, runtime, etc.

I've not run Linux on my PS3 (not enough ram to bother) so I'm not sure what profiling tools are available for its architecture. I guess it'd be PPC so probably all the traditional stuff is supported.

There's always gprof or manually reading from this cycle counter-like thing the cell has, but you probably want to use the cell specific CPC which is included in IBM's SDK.

There isn't much ram, but it has high bandwidth; so as long as your working sets fit it's not the end of the world. It's like a cheap Tesla box in that regard.

This is the argument that always kills me.  Not enough RAM?  Maybe not as much as you want, but there is plenty there.  Just remove what you do not want (out of gnome/kde/fluxbox whatever X you are using) and everything will run great.  Yes it takes awhile, but once I had everything up and running it runs wonderfully.



I don't use it, even if I did, I would be OK, I would rather have a safer network.



Wow Sony fans disappoint me so much.

I mean...anyone who has seen my post history here knows I am a fan of Sony.

But since this whole fiasco started, I've seriousley started to look at PS3 fans in a completely different light. Standing up for a company that is literally fucking us out of something we paid for.

 

OP - yes I use other OS. I use it to run emulators on my console as well as my media server like you said. Fuck Sony for removing it.



perpride said:

Wow Sony fan disappoint me so much.

I mean...anyone who has seen my post history here knows I am a fan of Sony.

But since this whole fiasco started, I've seriousley started to look at PS3 fans in a completely different light. Standing up for a company that is literally fucking us out of something we paid for.

 

OP - yes I use other OS. I use it to run emulators on my console as well as my media server like you said. Fuck Sony for removing it.

Im a Sony fan but even if I dont use "otherOS" I cant agree with a business practice like this. Please note that we didnt pay for PSN and they will not force you to remove "otherOS" tho. I agree with you on everything else. Even if I dont use it, im somewhat dissapointed to loose that feature to keep PSN. Also surprise theres a lot of people justifying this as easily.



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Icyedge said:
perpride said:

Wow Sony fans disappoint me so much.

I mean...anyone who has seen my post history here knows I am a fan of Sony.

But since this whole fiasco started, I've seriousley started to look at PS3 fans in a completely different light. Standing up for a company that is literally fucking us out of something we paid for.

 

OP - yes I use other OS. I use it to run emulators on my console as well as my media server like you said. Fuck Sony for removing it.

Im a Sony fan but even if I dont use "otherOS" I cant agree with a business practice like this. Please note that we didnt pay for PSN and they will not force you to remove "otherOS" tho. I agree with you on everything else. Even if I dont use it, im somewhat dissapointed to loose that feature to keep PSN. Also surprise theres a lot of people justifying this as easily.

Okay true, they aren't holding a gun to my head screaming "DO IT!".

But it's a choice between that and playing my games online...a choice which I have to make...and one that should have never even existed.



perpride said:
Icyedge said:
 

Im a Sony fan but even if I dont use "otherOS" I cant agree with a business practice like this. Please note that we didnt pay for PSN and they will not force you to remove "otherOS" tho. I agree with you on everything else. Even if I dont use it, im somewhat dissapointed to loose that feature to keep PSN. Also surprise theres a lot of people justifying this as easily.

Okay true, they aren't holding a gun to my head screaming "DO IT!".

But it's a choice between that and plahying my games online...a choice which I have to make...and one that should have never even existed.

Totally agree with you ;), this choice should have never existed, they shoudnt remove something some of their customers is currently enjoying. But even worst, the risk is far from justifying this either. Its very very low considering blu ray rips, internet bandwith (to downloads whole game) will refrain most person to hacking on PS3 + theres no hack at the moment that let you do anything bad for Sony. Slim doesnt even have "otherOS" anymore. At least if the risk would be very important I would understand, but its not the case. They would be better taking the risk to loose a bit of money from hack then shitting on the customers that use the "otherOS" function. You have my simpathy, I would be as mad as you if I would be using "otherOS".



Seems like the arguments are going round in circles now, but any-who. Perpride, you shouldn't be disappointed in sony fans, well not all of them anyway. I am not a sony fan however i can understand why sony is doing this (if it is infact NOT an april fools joke) as they need to keep there security safe. In many ways it's like airport restrictions that have been put in place since 9/11.



I do not run OS on my PS3. It sounds too complicated to me. Anyway I would probably brick my PS3 trying to install it. It is not worth the time and effort. Well done Sony removing an insignificant feature that only a small amount of PS3 owners actually use. Less than 1% of PS3 owners would use OS on the PS3.



Icyedge said:
perpride said:

Wow Sony fan disappoint me so much.

I mean...anyone who has seen my post history here knows I am a fan of Sony.

But since this whole fiasco started, I've seriousley started to look at PS3 fans in a completely different light. Standing up for a company that is literally fucking us out of something we paid for.

 

OP - yes I use other OS. I use it to run emulators on my console as well as my media server like you said. Fuck Sony for removing it.

Im a Sony fan but even if I dont use "otherOS" I cant agree with a business practice like this. Please note that we didnt pay for PSN and they will not force you to remove "otherOS" tho. I agree with you on everything else. Even if I dont use it, im somewhat dissapointed to loose that feature to keep PSN. Also surprise theres a lot of people justifying this as easily.

I know what Sony did was very unpopular, and while I am very pro Linux, I also understand why they did it:

with thing's like this investor's would have pressured Sony to do something , anything to atleast make it harder to keep SOFTWARE DUMP'S FROM GETTING PUT ON THE INTERNET.

When you have articles online with thing's like this stated, it's no wonder Sony did what they did:

 

this I think sum's it up pretty darn well:

Geohot-

"This is the coveted PS3 exploit, gives full memory access and therefore ring 0 access from OtherOS. Enjoy your hypervisor dumps. This is known to work with version 2.4.2 only, but I imagine it works on all current versions. Maybe later I'll write up how it works "

he even went sofar as to say this:

while I must take my hat off to GeoHot, you don't say thing's like this :

"Enjoy your hypervisor dumps."

expect a Company to not do every thing in their power to protect their software sales of their software and other's

an  when you have Media coverage with this:

PlayStation 3 finally hacked thanks to GeoHot

January 24th, 2010 byKyle
It has been more than two years since the initial launch of PlayStation 3, but until now no one has ever succeeded to get full control of the device. Well, its reign over the pirate world is over.
George Hotz (or GeoHot), the author of the blackra1n jailbreak for the latest iPhone/iPod Touch generation succeeded in taking control of the entire system memory and processor. It took him near five weeks to do the job, after 26 futile months.
He won’t share his methods yet, but promises to reveal everything when it’s completely ready. GeoHot also reports that this exploit can’t be closed by Sony with future software updates, so it will be permanent until they make changes on a hardware level into the future manufactured consoles.
Well, surely it’s a good news for all hackers and pirates in the gaming community. The prices of Blu-Ray discs and burners keep going down, so the PlayStation 3 may follow the Xbox 360 steps soon (getting a huge number of pirated games online).
with thing's like this what would people expect Sony to do.
(getting a huge number of pirated games online).
yes indeed that's exactly what sony and developer's wanted to hear!
but your removing a core function i payed for when i first bought the system. while i do think its regretable that Sony had indeed gave the choice to the consumer between Linux or upgrade and move on, I can understand exactly why they did it, Software sale's are how they recover their cost's, and what little number of software sale's they are getting, is a main priority, if people are making backup's of their game's you know and pretty much everyone know's there will soon be uploaded for people to download. one only has to look at the PSP and it's UMD dump's to see how much Sony would loose on what little number of Software sales it get's than , that would reduce that even further.
Game backup's alway's lead to piracy it just Human Nature.
EVEN IF SONY WOULD HAVE LEFT Other OS function in the ps3  there would still have been the goal of making software Backup's, which would have made it a problem anyway if they were passive about it. This way it make's it that Much harder for pirates  to do so.
when you had Media stating something like this:
"Well, surely it’s a good news for all hackers and pirates in the gaming community"
that does not bode well for Investor's over at Sony who may have happened to see something like this story on the internet!
and
Beside's there is still the option of BD-JAVA for Homebrew.
while I indeed think this was Bad for Sony to remove the Other OS function because I am very pro Linux,
At least they are still giving the Consumer a choice to Keep Linux at the expence of loss to their software sales if they would have done nothing.
As a Consumer you still have the option to Keep Linux, but you would loose other function's in the end, Sony is atleast letting the consumer deside how important  Linux is to you.
this was also stated:

when GeoHotz- stated this

""Hacking is breaking the security of the system, which I have done," Hotz responded. "I'm not spending my time writing custom firmware, ISO loaders, and an open SDK. Leave that to somebody else..."

and he states this:

“The hack would allow people to play older PS2 games on their consoles,” says the BBC, “recent versions of the PS3 do not have the ability to play PS2 games after Sony controversially removed a piece of hardware.”

Naturally, Geohot then admitted that it could also allow people to run pirated games.  “I’m not going to personally have anything to do with that,” he said.


But if you look at this from prevention of theft, i could not blame Sony for doing it.

like for instance

on the same token Geohot did have something to do with it  HE RELEASED HIS EXPLOIT, AN HIM KNOWING FULL WELL THAT IT COULD allow people to run pirated software.

what he does with his own ps3 is fine an dandy but allowing other's to do so also by helping them to do it

is having something to do with it.

so once again what would he expect Sony to do.

Hacking is great and all but when the result's of that  hacking you know would incite the use of your hack to cause piracy, than it's upto you with what you do with that , by putting it on the internet free for anyone to use. you would have to expect the same measure of resolve by the company who's product you hacked to protect that security exploit no matter if you intend for it to be just to show proof you did something like Hack a device. hacking can be a good thing , but also hacking does have sometime's a negative effect.

like this:

would you want MOD CHIPPED PS3's to have access to PSN!

January 27, 2010

How the PS3 hypervisor was hacked

It is quite possible someone will package this attack into a modchip since the glitch, while somewhat narrow, does not need to be very precisely timed. With a microcontroller and a little analog circuitry for the pulse, this could be quite reliable. However, it is more likely that a software bug will be found after reverse-engineering the dumped hypervisor and that is what will be deployed for use by the masses.

Sony appears to have done a great job with the security of the PS3. It all hangs together well, with no obvious weak points. However, the low level access given to guest OS kernels means that any bug in the hypervisor is likely to be accessible to attacker code due to the broad API it offers. One simple fix would be to read back the state of each mapping after changing it. If the write failed for some reason, the hypervisor would see this and halt.

It will be interesting to see how Sony responds with future updates to prevent this kind of attack.

http://rdist.root.org/2010/01/27/how-the-ps3-hypervisor-was-hacked/



I AM BOLO

100% lover "nothing else matter's" after that...

ps:

Proud psOne/2/3/p owner.  I survived Aplcalyps3 and all I got was this lousy Signature.