driver looping then crashing

[Roger James]

Running driver on Artful with the xwayland compositor. At random times the GPU stalls with.

Jan 30 11:22:28 dragon kernel: [ 487.046219] radeon 0000:02:00.0: ring 0 stalled for more than 29200msec
Jan 30 11:22:28 dragon kernel: [ 487.046224] radeon 0000:02:00.0: GPU lockup (current fence id 0x0000000000001bdb last fence id 0x0000000000001bdc on ring 0)

Usually when the system is idle.

The above message is repeated once a second for a while. This usually but not always terminates with a page load fault in the driver.

System can run for a few days without this happening. But on average it is once or twice a day.

Jan 30 11:22:30 dragon kernel: [ 488.507091] BUG: unable to handle kernel paging request at ffffb406c1891ffc
Jan 30 11:22:30 dragon kernel: [ 488.507176] IP: radeon_ring_backup+0xd3/0x140 [radeon]

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xserver-xorg-video-radeon 1:7.10.0-1
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
Date: Tue Jan 30 11:40:08 2018
DistUpgraded: 2017-11-06 18:26:08,552 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py'
DistroCodename: artful
DistroVariant: ubuntu
DkmsStatus:
 v4l2loopback, 0.10.0, 4.13.0-21-generic, x86_64: installed
 v4l2loopback, 0.10.0, 4.13.0-25-generic, x86_64: installed
 v4l2loopback, 0.10.0, 4.13.0-31-generic, x86_64: installed
 v4l2loopback, 0.10.0, 4.13.0-32-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] RV770 [Radeon HD 4850] [1002:9442] (rev ff) (prog-if ff)
InstallationDate: Installed on 2016-07-01 (577 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: System manufacturer System Product Name
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=linux
 PATH=(custom, no user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-32-generic root=/dev/mapper/wd-root ro
SourcePackage: xserver-xorg-video-ati
UpgradeStatus: Upgraded to artful on 2017-11-06 (84 days ago)
dmi.bios.date: 05/19/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0403
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: P6T SE
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0403:bd05/19/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6TSE:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: System Product Name
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.83-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu1~17.10.2
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu1~17.10.2
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Sat Dec 9 13:32:35 2017
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.19.5-0ubuntu2

[Roger James (rogerjames99)]

This crash looks very similar to #1301649. However is does not require the system to go into power save.

The crash is in radeon_ring_backup which is in linux/drivers/gpu/drm/radeon/radeon_device.c and part of the linux (kernel) package.

I have added that package to this bug.

[Roger James (rogerjames99)]

The file name above should read radeon_ring.c. I thought you used to be able to edit comments on here!

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This change was made by a bot.

[Roger James (rogerjames99)]

I have raised this bug at https://bugzilla.kernel.org/show_bug.cgi?id=198669