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Valve Fixes Portal 2 To Work With SELinux

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  • Valve Fixes Portal 2 To Work With SELinux

    Phoronix: Valve Fixes Portal 2 To Work With SELinux

    Valve has fixed an issue with middle-ware used by Portal 2 so that on Linux users can now have SELinux enabled...

    http://www.phoronix.com/vr.php?view=MTYzMTU

  • #2
    This is what makes Linux so support so difficult.

    They might have fixed it for Selinux for now. But wait until the next policy 'update'.

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    • #3
      Originally posted by Rexilion View Post
      This is what makes Linux so support so difficult.

      They might have fixed it for Selinux for now. But wait until the next policy 'update'.
      Hey, it's something about MP3 support.

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      • #4
        No, the default policy doesn't allow executable heap memory, something that the mp3 decoder in Source somehow did, and that isn't going to change any soon, I would say ever.

        One should wonder why it was even working on other systems, I thought this kind of protection was pretty standard...

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        • #5
          Originally posted by Rexilion View Post
          This is what makes Linux so support so difficult.

          They might have fixed it for Selinux for now. But wait until the next policy 'update'.
          Yeah, poor widdle developers, having to comply with security policies... we should be more like windows, where they patch in the operating system full of hacks, spaghetti code and holes to compensate for all the stupidity and incompentence of 3rd-party developers!

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          • #6
            Why the hell did they use MP3 in Portal 2? I thought vorbis was pretty standard in games even years ago.

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            • #7
              Originally posted by Calinou View Post
              Hey, it's something about MP3 support.
              Did you read the article?

              Originally posted by r1348 View Post
              No, the default policy doesn't allow executable heap memory, something that the mp3 decoder in Source somehow did, and that isn't going to change any soon, I would say ever.
              Yeah, so I guess they either added a slow fallback or made a proper Selinux security marking.

              Originally posted by r1348 View Post
              One should wonder why it was even working on other systems, I thought this kind of protection was pretty standard...
              Selinux is part of the kernel already. But as far as I know, only Redhat's distro's enable it along with properly maintained policy's. Gentoo has Selinux in their hardened profiles but that is not intended for everyone to use I think.

              Originally posted by dee. View Post
              Yeah, poor widdle developers, having to comply with security policies... we should be more like windows, where they patch in the operating system full of hacks, spaghetti code and holes to compensate for all the stupidity and incompentence of 3rd-party developers!
              Leaked Windows source code has shown to be pretty cleanly written. Check your favorite torrent tracker for a tarball. This issue was caused by distribution enforcing more restrictive security measures. Instead of ignoring it the 3rd-party developers fixed it, which I consider a good thing and not a sign of stupidity and incompetence.

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              • #8
                Idk why but Windows always seems cleaner than Linux to me. Performance-wise, Windows is much better for home use / gaming use. For development, Windows is a pita to even set up. Customization is also better on Linux. Since I'm not a developer and I have older hardware, Windows is 5 times faster in most scenarios. However, there are certain things that I really love about Linux... but there's only really few of them

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                • #9
                  Originally posted by plantroon View Post
                  Idk why but Windows always seems cleaner than Linux to me. Performance-wise, Windows is much better for home use / gaming use. For development, Windows is a pita to even set up. Customization is also better on Linux. Since I'm not a developer and I have older hardware, Windows is 5 times faster in most scenarios. However, there are certain things that I really love about Linux... but there's only really few of them
                  Hey dude enough with the details avalanche, could you please be more generic?

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                  • #10
                    Originally posted by Rexilion View Post
                    Selinux is part of the kernel already. But as far as I know, only Redhat's distro's enable it along with properly maintained policy's. Gentoo has Selinux in their hardened profiles but that is not intended for everyone to use I think.
                    Yeah I knew that, I somehow took for granted that other security systems like AppArmor were enforcing a r/w-only heap memory policy, I was mistaken. Oh well, even happier to use Fedora.

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                    • #11
                      Originally posted by plantroon View Post
                      Idk why but Windows always seems cleaner than Linux to me. Performance-wise, Windows is much better for home use / gaming use. For development, Windows is a pita to even set up. Customization is also better on Linux. Since I'm not a developer and I have older hardware, Windows is 5 times faster in most scenarios. However, there are certain things that I really love about Linux... but there's only really few of them
                      Blah, blah, blah. Windows is nightmare when comes to performance, so give me proofs or stop lying. My friend has EEE PC with Windows 7 preinstalled and she asked me to fix it or she will throw this shit out of the window($). Now she has Kubuntu running on it and she's surprised how fast Linux compared to Windows is. I could install something lighter, but even Kubuntu is ways faster than winblows.

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                      • #12
                        How faster ?
                        I compared the system responsivness when I had 2 vmware VMs running on Windows to the same thing on Linux. Windows was way more responsive, Linux even got stuck.

                        Another thing: Having 20 tabs open in Chrome leads to extreme lag when scrolling the websites and the rest of the system is not responsive. On Windows, no such thing occurs. I believe that this is caused by the poor Flash player suppot on Linux.

                        Btw, my Linux system had no swap on disk, I used zram or what it's called. On Windows I have pagefile enabled and it's still faster. I know how awesome Linux kernel is (but it's getting too bloated imho) .... but all the programs running on top of it are bad, buggy, slow... (Xorg yay...)

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                        • #13
                          they also fixed multiplayer in this version. something to do with binding the controller to player one and not having any way of binding it to player two.
                          if you compare portal 2 to any other game they released, almost every bug got fixed within a 2 week span, congrats to them

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                          • #14
                            Originally posted by plantroon View Post
                            How faster ?
                            I compared the system responsivness when I had 2 vmware VMs running on Windows to the same thing on Linux. Windows was way more responsive, Linux even got stuck.

                            Another thing: Having 20 tabs open in Chrome leads to extreme lag when scrolling the websites and the rest of the system is not responsive. On Windows, no such thing occurs. I believe that this is caused by the poor Flash player suppot on Linux.

                            Btw, my Linux system had no swap on disk, I used zram or what it's called. On Windows I have pagefile enabled and it's still faster. I know how awesome Linux kernel is (but it's getting too bloated imho) .... but all the programs running on top of it are bad, buggy, slow... (Xorg yay...)
                            I have my Windows 7 choking whenever I'm installing some software, but I can play games on Linux when upgrading the system. Linux has feature like KSM (Kernel SamePage Merging) which reduces memory usage by VMs, but it's sometimes CPU hungry. I bet most distros have this enabled by default (Ubuntu for example), but it's very easy to disable it. Flash could be a problem, because afaik it's not accelerated and xorg is another big problem, I agree. When comes to kernel it becomes more and more responsive and performant (the newest one should finally fix IO stalls issue) and merging of RT tree should bring a lot of good fruits as well. I wouldn't say the choice is equall to bloat, because you're not forced to use ten different file systems same time (but you can!).

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