On 31/07/15 10:58, Bryan O'Donoghue wrote:
On 31/07/15 10:53, Bryan O'Donoghue wrote:
On 31/07/15 01:03, Bryan O'Donoghue wrote:
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@alum.mit.edu wrote:
On Thu, Jul 30, 2015 at 10:56 AM, Bryan O'Donoghue pure.logic@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@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=812e8fe6ce46d733c30207ee26c7...
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
Hmm.
Interesting - I spoke way too soon on that.
Left my machine up overnight and lo and behold now that I do a dmesg I see...
nouveau E[chrome[2870]] multiple instances of buffer 16 on validation list nouveau E[chrome[2870]] multiple instances of buffer 24 on validation list nouveau E[chrome[2870]] multiple instances of buffer 167 on validation list nouveau E[chrome[2870]] multiple instances of buffer 251 on validation list nouveau E[chrome[2870]] multiple instances of buffer 248 on validation list nouveau E[chrome[2870]] multiple instances of buffer 249 on validation list nouveau E[chrome[2870]] multiple instances of buffer 230 on validation list nouveau E[chrome[2870]] multiple instances of buffer 253 on validation list nouveau E[chrome[2870]] multiple instances of buffer 255 on validation list nouveau E[chrome[2870]] multiple instances of buffer 230 on validation list nouveau E[chrome[2870]] multiple instances of buffer 257 on validation list nouveau E[chrome[2870]] multiple instances of buffer 230 on validation list
deckard@aineko:~$ dpkg -s libdrm2 Package: libdrm2 Status: install ok installed Priority: optional Section: libs Installed-Size: 106 Maintainer: Ubuntu X-SWAT ubuntu-x@lists.ubuntu.com Architecture: amd64 Multi-Arch: same Source: libdrm Version: 2.4.56-1~ubuntu2 Depends: libc6 (>= 2.17) Pre-Depends: multiarch-support Description: Userspace interface to kernel DRM services -- runtime This library implements the userspace interface to the kernel DRM services. DRM stands for "Direct Rendering Manager", which is the kernelspace portion of the "Direct Rendering Infrastructure" (DRI). The DRI is currently used on Linux to provide hardware-accelerated OpenGL drivers. . This package provides the runtime environment for libdrm. Orig-Maintainer: Debian X Strike Force debian-x@lists.debian.org
deckard@aineko:~$ uname -a Linux aineko 4.2.0-rc4+ #50 SMP Thu Jul 30 01:22:01 IST 2015 x86_64 x86_64 x86_64 GNU/Linux
Please note - this machine has the fix I proposed in the original patch applied so X is not locking up when the multiple instances message happens.
In any case to answer the original question - I don't believe switching away from 2.4.60 will resolve this issue
2.40.6 I mean :)
ah no... 2.4.60 is right...
Yes so Ilia - I've switched out 2.4.60 as per your suggestion to 2.4.56 (getting the version numbers right :) ) and it's still definitely giving me the multiple instances message.