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 <[email protected]> wrote:
On Thu, Jul 30, 2015 at 10:56 AM, Bryan O'Donoghue
<[email protected]> 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=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


Peter.

I tried your suggested fix too as uploaded and it doesn't fix it either.

I think that this is a separate bug or the fix as applied to libdrm doesn't actually fix it.


deckard@aineko:~$ dmesg | tail -n 1
nouveau E[chrome[3176]] multiple instances of buffer 413 on validation list

deckard@aineko:~$ dpkg -s libdrm2
Package: libdrm2
Status: install ok installed
Priority: optional
Section: libs
Installed-Size: 106
Maintainer: Debian X Strike Force <[email protected]>
Architecture: amd64
Multi-Arch: same
Source: libdrm
Version: 2.4.60-2ppa1~trusty1

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


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