[modeset+nvidia+amdgpu] Xorg crashed with SIGABRT in __GI_raise()

[Lucy Llewellyn]

Crash dump for bug #1869747

From that bug:

I am unsure where the problem stems, but changes since the 25th have caused my system to fail to initialise the Xorg display. The console remains operational for debugging. I am currently using ZFS snapshots to use the system as it was on the 25th of March 2020 because that is the last snapshot before this issue.

$ lsb_release -rd
Description: Ubuntu Focal Fossa (development branch)
Release: 20.04

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: xserver-xorg-core 2:1.20.7-2ubuntu2
ProcVersionSignature: Ubuntu 5.4.0-18.22-generic 5.4.24
Uname: Linux 5.4.0-18-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
.proc.driver.nvidia.gpus.0000.01.00.0: Error: [Errno 21] Is a directory: '/proc/driver/nvidia/gpus/0000:01:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.suspend: suspend hibernate resume
.proc.driver.nvidia.suspend_depth: default modeset uvm
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 440.64 Fri Feb 21 01:17:26 UTC 2020
 GCC version: gcc version 9.3.0 (Ubuntu 9.3.0-3ubuntu1)
ApportVersion: 2.20.11-0ubuntu20
Architecture: amd64
Date: Tue Mar 31 14:20:06 2020
DistUpgraded: Fresh install
DistroCodename: focal
DistroVariant: ubuntu
DkmsStatus: nvidia, 440.64, 5.4.0-18-generic, x86_64: installed
ExecutablePath: /usr/lib/xorg/Xorg
ExecutableTimestamp: 1581160897
InstallationDate: Installed on 2020-03-03 (27 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Alpha amd64 (20200303)
MachineType: Gigabyte Technology Co., Ltd. Z170X-UD5 TH
ProcCmdline: /usr/lib/xorg/Xorg vt1 -displayfd 3 -auth /run/user/125/gdm/Xauthority -background none -noreset -keeptty -verbose 3
ProcEnviron: Error: [Errno 13] Permission denied: 'environ'
ProcKernelCmdLine: BOOT_IMAGE=/BOOT/ubuntu_t60y5t@/vmlinuz-5.4.0-18-generic root=ZFS=rpool/ROOT/ubuntu_t60y5t ro quiet splash intel_iommu=on vt.handoff=1
ProcMaps: Error: [Errno 13] Permission denied: 'maps'
Signal: 6
SourcePackage: nvidia-graphics-drivers
StacktraceTop:
 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50
 __GI_abort () at abort.c:79
 ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
 ?? () from /usr/lib/x86_64-linux-gnu/dri/iris_dri.so
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 03/09/2018
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: F22g
dmi.board.asset.tag: Default string
dmi.board.name: Z170X-UD5 TH-CF
dmi.board.vendor: Gigabyte Technology Co., Ltd.
dmi.board.version: Default string
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrF22g:bd03/09/2018:svnGigabyteTechnologyCo.,Ltd.:pnZ170X-UD5TH:pvrDefaultstring:rvnGigabyteTechnologyCo.,Ltd.:rnZ170X-UD5TH-CF:rvrDefaultstring:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: Default string
dmi.product.name: Z170X-UD5 TH
dmi.product.sku: Default string
dmi.product.version: Default string
dmi.sys.vendor: Gigabyte Technology Co., Ltd.
separator:

version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.100-4
version.libgl1-mesa-dri: libgl1-mesa-dri 20.0.0-1ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 20.0.0-1ubuntu1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.20.7-2ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:19.1.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20190815-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.16-1

[Sebastien Bacher (seb128)]

the issue could be the same as bug #1871959 , it's a segfault in the iris driver but there is no debug symbol