Public bug reported:
I have an Epyc Genoa system that won't boot with either the 6.14.0 or
6.14.1 kernels without mce=off. The system is only a few months old, and
has run without issue on all kernels up to the most recent 6.13.10
release. Starting with kernel 6.14.0, the system is unable to boot,
apparently due to a CPU cache issue (based on my reading of the
journalctl -b logs). I don't believe this is actually a hardware issue
as reported by journalctl -b, as I have run thorough stress tests on
both the CPU and memory without any problem since first coming accross
this. I have reached out to the board manufacturer, and there are no
newer BIOS updates available. System details are below.
CPU: AMD EPYC 9554 (microcode 0x0a101148)
Motherboard: ASRock Rack GENOAD8X-2T/BCM (BIOS Firmware Version 10.05, BMC
Firmware Version 10.02.00)
Memory: 8x64GB MICRON DDR5 RDIMM
[ 2.016623] BERT: Error records from previous boot:
[ 2.019601] [Hardware Error]: event severity: fatal
[ 2.022688] [Hardware Error]: Error 0, type: fatal
[ 2.026173] [Hardware Error]: fru_text: ProcessorError
[ 2.028867] [Hardware Error]: section_type: IA32/X64 processor error
[ 2.031706] [Hardware Error]: Local APIC_ID: 0x0
[ 2.033879] [Hardware Error]: CPUID Info:
[ 2.036475] [Hardware Error]: 00000000: 00a10f11 00000000 00800800 00000000
[ 2.038856] [Hardware Error]: 00000010: 76fa320b 00000000 178bfbff 00000000
[ 2.040891] [Hardware Error]: 00000020: 00000000 00000000 00000000 00000000
[ 2.043879] [Hardware Error]: Error Information Structure 0:
[ 2.045883] [Hardware Error]: Error Structure Type: cache error
[ 2.047903] [Hardware Error]: Check Information: 0x000000000602001f
[ 2.050184] [Hardware Error]: Transaction Type: 2, Generic
[ 2.052881] [Hardware Error]: Operation: 0, generic error
[ 2.054882] [Hardware Error]: Level: 0
[ 2.057883] [Hardware Error]: Processor Context Corrupt: true
[ 2.059883] [Hardware Error]: Uncorrected: true
[ 2.061899] [Hardware Error]: Context Information Structure 0:
[ 2.063883] [Hardware Error]: Register Context Type: MSR Registers
(Machine Check and other MSRs)
[ 2.067872] usb 1-1: new high-speed USB device number 2 using xhci_hcd
[ 2.067891] [Hardware Error]: Register Array Size: 0x0050
[ 2.073207] [Hardware Error]: MSR Address: 0xc0002051
[ 2.076587] [Hardware Error]: Context Information Structure 1:
[ 2.078873] [Hardware Error]: Register Context Type: Unclassified Data
[ 2.081350] [Hardware Error]: Register Array Size: 0x0010
[ 2.083291] [Hardware Error]: Register Array:
[ 2.085194] [Hardware Error]: 00000000: 00000010 00000000 1c3010c0
fffffffe
[ 2.087887] BERT: Total records found: 1
ProblemType: Bug
DistroRelease: Ubuntu 25.04
Package: linux-image-6.14.0-13-generic 6.14.0-13.13
ProcVersionSignature: Ubuntu 6.14.0-13.13-generic 6.14.0
Uname: Linux 6.14.0-13-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k6.14.0-13-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.32.0-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path',
'/dev/snd/controlC0', '/dev/snd/controlC2', '/dev/snd/controlC1',
'/dev/snd/hwC0D0', '/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/hwC2D0',
'/dev/snd/pcmC2D9p', '/dev/snd/hwC1D0', '/dev/snd/pcmC2D8p',
'/dev/snd/pcmC1D9p', '/dev/snd/pcmC0D7p', '/dev/snd/pcmC2D7p',
'/dev/snd/pcmC1D8p', '/dev/snd/pcmC0D3p', '/dev/snd/pcmC2D3p',
'/dev/snd/pcmC1D7p', '/dev/snd/pcmC1D3p', '/dev/snd/seq', '/dev/snd/timer']
failed with exit code 1:
CRDA: N/A
Card0.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card0.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card1.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
Card2.Amixer.info: Error: [Errno 2] No such file or directory: 'amixer'
Card2.Amixer.values: Error: [Errno 2] No such file or directory: 'amixer'
CasperMD5CheckResult: pass
CurrentDmesg: Error: command ['dmesg'] failed with exit code 1: dmesg: read
kernel buffer failed: Operation not permitted
Date: Tue Apr 8 23:49:59 2025
InstallationDate: Installed on 2025-04-08 (0 days ago)
InstallationMedia: Ubuntu-Server 25.04 "Plucky Puffin" - Daily amd64 (20250324)
MachineType: To Be Filled By O.E.M. GENOAD8X-2T/BCM
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
ProcFB: 0 astdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-6.14.0-13-generic
root=/dev/mapper/ubuntu--vg-ubuntu--lv ro
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
mce=off
RelatedPackageVersions:
linux-restricted-modules-6.14.0-13-generic N/A
linux-backports-modules-6.14.0-13-generic N/A
linux-firmware 20250317.git1d4c88ee-0ubuntu1
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
acpidump:
dmi.bios.date: 12/12/2024
dmi.bios.release: 5.27
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 10.05
dmi.board.name: GENOAD8X-2T/BCM
dmi.board.vendor: ASRockRack
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 17
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr10.05:bd12/12/2024:br5.27:svnToBeFilledByO.E.M.:pnGENOAD8X-2T/BCM:pvrToBeFilledByO.E.M.:rvnASRockRack:rnGENOAD8X-2T/BCM:rvr:cvnToBeFilledByO.E.M.:ct17:cvrToBeFilledByO.E.M.:skuToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: GENOAD8X-2T/BCM
dmi.product.sku: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug plucky
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https://bugs.launchpad.net/bugs/2106553
Title:
Unable to boot starting with Kernel 6.14.0
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