On 30/07/15 22:45, Peter Hurley wrote: > [ +cc Debian maintainer ] > > On 07/30/2015 11:26 AM, Emil Velikov wrote: >> On 30 July 2015 at 16:02, Ilia Mirkin <imirkin at alum.mit.edu> wrote: >>> On Thu, Jul 30, 2015 at 10:56 AM, Bryan O'Donoghue >>> <pure.logic at nexus-software.ie> wrote: >>>> On 30/07/15 15:52, Bryan O'Donoghue wrote: >>>>> >>>>> On 30/07/15 15:49, Peter Hurley wrote: >>>>>> >>>>>> On 07/30/2015 10:12 AM, Ilia Mirkin wrote: >>>>>>> >>>>>>> Is this happening with libdrm 2.4.60? If so, that's a known >>>>>>> (user-side) issue and should be fixed by using any version but that >>>>>>> one. >>>>>> >>>>>> >>>>>> What's the freedesktop bugzilla # for reference? >>>>>> >>>>>> Regards, >>>>>> Peter Hurley >>>>> >>>>> >>>>> I believe it's this one >>>>> >>>>> https://bugs.freedesktop.org/show_bug.cgi?id=89842#c19 >>>>> >>>> >>>> Not really a world of choice on ubuntu to fix it though... >>>> >>>> deckard at aineko:~/Development/projectara$ apt-show-versions libdrm2 >>>> libdrm2:amd64/trusty-updates 2.4.60-2~ubuntu14.04.1 uptodate >>>> libdrm2:i386/trusty-updates 2.4.60-2~ubuntu14.04.1 uptodate >>>> >>>> :( >>> >>> That's unfortunate. I know next to nothing about debian/ubuntu or how >>> they do versions or how to even build packages for them. But they're >>> big distros, presumably they have support teams of some sort, perhaps >>> they can help you. >>> >>> Assuming that switching away does resolve the issue for you, perhaps >>> you can also recommend that they avoid shipping that version, or >>> include this nouveau fix in it: >>> >>> http://cgit.freedesktop.org/mesa/drm/commit/?id=812e8fe6ce46d733c30207ee26c788c61f546294 >>> >> Fwiw debian has been tracking this as #789759, and they are shipping >> 2.4.62 which includes the fix. > > Unfortunately the LTS version of Ubuntu (trusty) was updated to 2.4.60 > several days ago without this fix. > > I repackaged libdrm 2.4.60 with only the bug fix above and confirm the > patch above fixes the observed behavior in freedesktop bug# 89842/ > debian bug# 789759. > > I pushed the repackage to Launchpad PPA @ ppa:phurley/libdrm > > Hopefully the Debian maintainer grabs this fix and updates the official > distribution version soon. > > Regards, > Peter Hurley
Yep. Dropping down to 2.4.56-1~ubuntu2 definitely removes the nouveau E[chrome[2737]] multiple instances of buffer 33 on validation list nouveau E[chrome[2737]] validate_init nouveau E[chrome[2737]] validate: -22 nouveau E[chrome[2737]] multiple instances of buffer 18 on validation list nouveau E[chrome[2737]] validate_init nouveau E[chrome[2737]] validate: -22 nouveau E[ PFIFO][0000:01:00.0] PFIFO: read fault at 0x0003e21000 [PAGE_NOT_PRESENT] from (unknown enum 0x00000000)/GPC0/(unknown enum 0x0000000f) on channel 0x007f80c000 [unknown] and hard lock-up of X. I'll update these guys with the fix http://tinyurl.com/orvbzf3
