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@xxxxxxxxxxxx> wrote:
On Thu, Jul 30, 2015 at 10:56 AM, Bryan O'Donoghue
<pure.logic@xxxxxxxxxxxxxxxxx> 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
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
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@xxxxxxxxxxxxxxxx>
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@xxxxxxxxxxxxxxxx>
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 and similarly then Ilia - do
you happen to know if 2.4.56 should have the bug ? Should I now be using
a version of libdrm2 which is good ???
Bryan
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