Groups > linux.kernel > #1197164

Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times

From	Bryan O'Donoghue <pure.logic@nexus-software.ie>
Newsgroups	linux.kernel
Subject	Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times
Date	2015-07-31 18:20 +0200
Message-ID	<pSlcm-2vJ-13@gated-at.bofh.it> (permalink)
References	(3 earlier) <pRXto-1wm-15@gated-at.bofh.it> <pRXto-1wm-13@gated-at.bofh.it> <pRXD4-1Xv-15@gated-at.bofh.it> <pRXWq-2jR-5@gated-at.bofh.it> <pS3Sc-2ki-27@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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=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 <debian-x@lists.debian.org>
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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Thread

[PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-30 12:40 +0200
  Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times Ilia Mirkin <imirkin@alum.mit.edu> - 2015-07-30 16:20 +0200
    Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Peter Hurley <peter@hurleysoftware.com> - 2015-07-30 16:50 +0200
      Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-30 17:00 +0200
        Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times Ilia Mirkin <imirkin@alum.mit.edu> - 2015-07-30 17:10 +0200
          Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-30 17:20 +0200
          Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times Emil Velikov <emil.l.velikov@gmail.com> - 2015-07-30 17:30 +0200
            Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-31 18:20 +0200
            Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple times Ilia Mirkin <imirkin@alum.mit.edu> - 2015-07-31 18:40 +0200
              Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-31 18:50 +0200
                Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-08-03 03:00 +0200
      Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-30 17:00 +0200
    Re: [PATCH] drm/nouveau/gem: tolerate a buffer specified multiple  times Bryan O'Donoghue <pure.logic@nexus-software.ie> - 2015-07-30 16:50 +0200

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