amdgpu mst power saving null ptr deref

[Tuomas Heino]

Reoccurrence of amdgpu MST power saving related null pointer deref. Likely should be against kernel instead, but let's see whether ubuntu-bug attached sensible part of logs.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: xorg 1:7.7+23ubuntu2
ProcVersionSignature: Ubuntu 6.2.0-33.33~22.04.1-generic 6.2.16
Uname: Linux 6.2.0-33-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.5
Architecture: amd64
BootLog: Error: [Errno 13] Permission denied: '/var/log/boot.log'
CasperMD5CheckResult: pass
Date: Sun Oct 8 10:23:57 2023
DistUpgraded: Fresh install
DistroCodename: jammy
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes, including running git bisection searches
GpuHangFrequency: Very infrequently
GraphicsCard:
 Advanced Micro Devices, Inc. [AMD/ATI] Navi 14 [Radeon RX 5500/5500M / Pro 5500M] [1002:7340] (rev c5) (prog-if 00 [VGA controller])
   Subsystem: Micro-Star International Co., Ltd. [MSI] Navi 14 [Radeon RX 5500/5500M / Pro 5500M] [1462:3822]
InstallationDate: Installed on 2022-04-27 (528 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-6.2.0-33-generic root=UUID=69fa5235-bbc4-4603-9895-5e7017992b3c ro quiet splash vt.handoff=7
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: xorg
Symptom: display
Title: Xorg freeze
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/16/2012
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 2106
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: P8B WS
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.:bvr2106:bd07/16/2012:br4.6:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP8BWS:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:skuSKU:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.113-2~ubuntu0.22.04.1
version.libgl1-mesa-dri: libgl1-mesa-dri 23.0.4-0ubuntu1~22.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx N/A
version.xserver-xorg-core: xserver-xorg-core 2:21.1.4-2ubuntu1.7~22.04.1
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-2ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20210115-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.17-2build1

[Tuomas Heino (iheino+ub)]

A fix may already be available at https://gitlab.freedesktop.org/drm/amd/-/issues/2486