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------------------------------------------------------------------------
On 2017-01-26T20:40:44+00:00 Diplosarus wrote:

LIBGL_ALWAYS_INDIRECT=1 glxgears 
fails on latest git on r600 with:

X Error of failed request:  255
  Major opcode of failed request:  155 (GLX)
  Minor opcode of failed request:  1 (X_GLXRender)
  Serial number of failed request:  42
  Current serial number in output stream:  164

After rendering one frame. this is on a ATI HD5850. This is 100%
repeatable and occures with every opengl app. Direct Rendering works
fine.

Indirect rendering works with the vesa x11 driver and llvmpipe. xf86
-video-ati versus xf86-video-modestetting both fail.

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/0

------------------------------------------------------------------------
On 2017-01-27T08:23:43+00:00 Michel Dänzer wrote:

This code in __glXForceCurrent:

    if (cx->wait && (*cx->wait) (cx, cl, error))
        return NULL;

calls DRI2WaitSwap, which returns TRUE because there is a pending swap.
I suspect something to deal with this went missing at a higher level at
some point.

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/1

------------------------------------------------------------------------
On 2017-01-29T23:35:31+00:00 Diplosarus wrote:

Xorg 1.18.3 and below works fine, xorg 1.18.4 fails.

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/2

------------------------------------------------------------------------
On 2017-01-29T23:42:57+00:00 Diplosarus wrote:

Looking at the commits between 1.18.3 and 1.18.4 this commit seams
pertain to the case:
https://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.18-branch&id=54ba95861e5ae54051d3963e5e7ced7d69a6de7b

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/3

------------------------------------------------------------------------
On 2017-01-30T01:04:20+00:00 Michel Dänzer wrote:

(In reply to diplosarus from comment #3)
> Looking at the commits between 1.18.3 and 1.18.4 this commit seams pertain
> to the case:
> https://cgit.freedesktop.org/xorg/xserver/commit/?h=server-1.18-
> branch&id=54ba95861e5ae54051d3963e5e7ced7d69a6de7b

Does reverting that commit fix it?

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/4

------------------------------------------------------------------------
On 2017-03-20T11:18:34+00:00 Diplosarus wrote:

(In reply to Michel Dänzer from comment #4) 
> Does reverting that commit fix it?

No sadly not.

Also this bug Persists in 1.19.3

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/5

------------------------------------------------------------------------
On 2017-03-22T09:18:00+00:00 Michel Dänzer wrote:

Can you bisect between 1.18.3 and 1.18.4?

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/6

------------------------------------------------------------------------
On 2018-02-09T13:31:48+00:00 Kusanagi Kouichi wrote:

I tested with xf86-video-ati-7.10.0-23-g733f606d. xorg-server-1.18.4 is
good and xorg-server-1.19.0 is bad. Bisected and the result is:


7d33ab0f8c7958b205076f71e4b47c24aace77fd is the first bad commit
commit 7d33ab0f8c7958b205076f71e4b47c24aace77fd
Author: Adam Jackson <[email protected]>
Date:   Tue Jun 28 15:54:44 2016 -0400

    dri2: Don't make reference to noClientException

    noClientException is now never filled in with a meaningful value, it's
    always -1. The sole caller of this function disregards the error value
    in any case.

    Reviewed-by: Eric Anholt <[email protected]>
    Signed-off-by: Adam Jackson <[email protected]>

:040000 040000 50ecf07fd43345192f937697193acbc91086e975
6d6494a0a06aed80c78491b758f7e35bf3059389 M      glx


Without 7d33ab0f8c7958b205076f71e4b47c24aace77fd, xorg-server-1.19.0 works but 
xorg-server-1.19.0-587-gbebcc8477 doesn't work. No X error but the following 
errors in dmesg:
[1654246.207734] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.212430] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.220569] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.220790] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.220880] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.236924] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.237176] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.237255] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.248485] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.248810] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.248960] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.265295] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.265866] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.266024] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.281986] radeon 0000:00:01.0: bo ffff90626cd73000 don't has a mapping 
in vm ffff90624f11d200
[1654246.992998] [drm:radeon_cs_parser_relocs [radeon]] *ERROR* gem object 
lookup failed 0x4c
[1654246.993025] [drm:radeon_cs_ioctl [radeon]] *ERROR* Failed to parse 
relocation -2!

Reply at: https://bugs.launchpad.net/ubuntu/+source/xorg-
server/+bug/1776447/comments/7


** Changed in: xorg-server
       Status: Unknown => Confirmed

** Changed in: xorg-server
   Importance: Unknown => Medium

-- 
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https://bugs.launchpad.net/bugs/1776447

Title:
  Indirect GLX (LIBGL_ALWAYS_INDIRECT=1) causes opengl programms to
  crash

Status in X.Org X server:
  Confirmed
Status in xorg-server package in Ubuntu:
  New

Bug description:
  There's already an upstream bug report here:

  https://bugs.freedesktop.org/show_bug.cgi?id=99555

  Basically, with Option "IndirectGLX" "True" and
  LIBGL_ALWAYS_INDIRECT=1 I get immediate crashes e.g. with glxgear:

  steved@xubuntu:~$ LIBGL_ALWAYS_INDIRECT=true glxgears 
  Running synchronized to the vertical refresh.  The framerate should be
  approximately the same as the monitor refresh rate.
  X Error of failed request:  255
    Major opcode of failed request:  155 (GLX)
    Minor opcode of failed request:  1 (X_GLXRender)
    Serial number of failed request:  42
    Current serial number in output stream:  936

  I am trying to run what is effectively a traditional X Terminal, but
  as the hardware I am using has a 3D accelerated chipset it seems
  sensible to try to use it..

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: xserver-xorg-core 2:1.19.6-1ubuntu4
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  Uname: Linux 4.15.0-22-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.1
  Architecture: amd64
  BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
  Date: Tue Jun 12 10:09:30 2018
  DistUpgraded: Fresh install
  DistroCodename: bionic
  DistroVariant: ubuntu
  DkmsStatus:
   rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-22-generic, x86_64: installed
   rtl8812au, 4.3.8.12175.20140902+dfsg, 4.15.0-23-generic, x86_64: installed
  ExtraDebuggingInterest: Yes
  GraphicsCard:
   Intel Corporation Device [8086:5a85] (rev 0b) (prog-if 00 [VGA controller])
     Subsystem: Intel Corporation Device [8086:2212]
  InstallationDate: Installed on 2018-05-31 (11 days ago)
  InstallationMedia: Xubuntu 18.04 LTS "Bionic Beaver" - Release amd64 
(20180426)
  MachineType: AZW S I
  ProcEnviron:
   TERM=xterm
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-22-generic 
root=/dev/mapper/xubuntu--vg-root ro noresume
  SourcePackage: xorg-server
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 12/18/2017
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 00.12
  dmi.board.asset.tag: Default string
  dmi.board.name: AB1
  dmi.board.vendor: IP3 Tech
  dmi.board.version: Default string
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 35
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr00.12:bd12/18/2017:svnAZW:pnSI:pvrDefaultstring:rvnIP3Tech:rnAB1:rvrDefaultstring:cvnDefaultstring:ct35:cvrDefaultstring:
  dmi.product.family: Mini PC
  dmi.product.name: S I
  dmi.product.version: Default string
  dmi.sys.vendor: AZW
  version.compiz: compiz N/A
  version.libdrm2: libdrm2 2.4.91-2
  version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.0~rc5-1ubuntu1
  version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.0~rc5-1ubuntu1
  version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
  version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
  version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
  version.xserver-xorg-video-intel: xserver-xorg-video-intel 
2:2.99.917+git20171229-1
  version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2

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