for me and my issue with nvidia freezing it seems to be solved in the alpha in karmic. could this be an issue with jaunty kernel?
On 5/18/09, Albert Damen <al...@gmx.net> wrote: > Based on Eric Anholt's findings about freezes due to prefetching beyond > end of aperture (b.fd.o 21488), I have done some testing. > > With Eric's patch applied in kernel 2.6.30-rc6 I still got the freeze. That > seemed to make sense: we are using EXA, and the exa offscreen buffer is > using the last page in aperture. So BO's wouldn't use the last page in our > case anyways. > Then I patched -intel and pushed back the exa offscreen buffer 4 kB below > end of aperture (0x0ed3f000-0x0fffefff: exa offscreen). That still gave the > freeze. > Then I pushed a bit harder, now by 32MB (0x0cd40000-0x0dffffff: exa > offscreen) --> No freeze anymore. > > The 32MB was not a random choice: it matches the 32 MB classic texture > buffer we had until beginning of April, which was sitting between exa > offscreen and end of aperture. Dropping patch 118_drop_legacy3d.patch, > which removed the (unused) classic texture buffer, also solves the > freeze issue for me. So maybe that patch (dated 1 April) has been the > trigger for this bug? > > Now the question is: Is something writing or reading beyond the end of > the exa offscreen buffer? Without the 32 MB unused memory after the exa > offscreen buffer, that would be beyond end of aperture. How can I find > what is doing that? > > -- > [i965] X freezes starting on April 3rd > https://bugs.launchpad.net/bugs/359392 > You received this bug notification because you are a direct subscriber > of the bug. > -- Jonathan Aquilina -- [i965] X freezes starting on April 3rd https://bugs.launchpad.net/bugs/359392 You received this bug notification because you are a member of Ubuntu-X, which is the registrant for xf86-video-intel. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
