Public bug reported:
My server crashed while running KVM virtual machines.
Kernel: 6.8.0-86-generic
Hardware: Supermicro H13SAE-MF
Error in dmesg:
BUG: unable to handle page fault for address: 0000000000051db0
RIP: task_change_group_fair+0xa9/0x180
Happened while KVM guests were active.
Expect stable operation, got kernel oops instead.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
===== Kernel & OS Info =====
Kernel: 6.8.0-88-generic
Full uname: Linux _ 6.8.0-88-generic #89-Ubuntu SMP PREEMPT_DYNAMIC Sat Oct 11
01:02:46 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Kernel version: Linux version 6.8.0-88-generic (buildd@lcy02-amd64-004)
(x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU
Binutils for Ubuntu) 2.42) #89-Ubuntu SMP PREEMPT_DYNAMIC Sat Oct 11 01:02:46
UTC 2025
Distro: Ubuntu 24.04.3 LTS
Installed kernel packages:
rc linux-image-6.8.0-71-generic 6.8.0-71.71
amd64 Signed kernel image generic
rc linux-image-6.8.0-78-generic 6.8.0-78.78
amd64 Signed kernel image generic
rc linux-image-6.8.0-79-generic 6.8.0-79.79
amd64 Signed kernel image generic
rc linux-image-6.8.0-83-generic 6.8.0-83.83
amd64 Signed kernel image generic
rc linux-image-6.8.0-84-generic 6.8.0-84.84
amd64 Signed kernel image generic
rc linux-image-6.8.0-85-generic 6.8.0-85.85
amd64 Signed kernel image generic
rc linux-image-6.8.0-86-generic 6.8.0-86.87
amd64 Signed kernel image generic
ii linux-image-6.8.0-87-generic 6.8.0-87.88
amd64 Signed kernel image generic
ii linux-image-6.8.0-88-generic 6.8.0-88.89
amd64 Signed kernel image generic
ii linux-image-6.8.0-90-generic 6.8.0-90.91
amd64 Signed kernel image generic
ii linux-image-generic 6.8.0-90.91
amd64 Generic Linux kernel image
===== Hardware Info =====
System Manufacturer: Supermicro
System Product Name: Super Server
System Version: 0123456789
BIOS Vendor: American Megatrends International, LLC.
BIOS Version: 2.2
BIOS Release Date: 11/18/2024
CPU: AMD Ryzen 9 7950X3D 16-Core Processor
AMD Ryzen 9 7950X3D 16-Core Processor Unknown
CPU @ 4.2GHz
Memory:
total used free shared buff/cache available
Mem: 183Gi 172Gi 6.5Gi 11Mi 6.0Gi 10Gi
Swap: 319Gi 34Gi 285Gi
===== Boot & Kernel Config =====
Kernel cmdline: BOOT_IMAGE=/boot/vmlinuz-6.8.0-88-generic
root=UUID=df603efd-4031-4d3f-a666-de9913655d83 ro crashkernel=512M panic=10
crashkernel=512M panic=10
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
Kernel config: not available
===== KVM / Virtualization =====
KVM modules loaded:
kvm_amd 208896 611
kvm 1409024 312 kvm_amd
irqbypass 12288 1 kvm
ccp 143360 1 kvm_amd
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-88-generic 6.8.0-88.89
ProcVersionSignature: Ubuntu 6.8.0-88.89-generic 6.8.12
Uname: Linux 6.8.0-88-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version k6.8.0-88-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC1',
'/dev/snd/hwC1D0', '/dev/snd/pcmC1D2c', '/dev/snd/pcmC1D1c',
'/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p',
'/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0',
'/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p',
'/dev/snd/pcmC0D3p', '/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'
CasperMD5CheckResult: unknown
Date: Thu Dec 11 22:05:04 2025
InstallationDate: Installed on 2025-08-05 (128 days ago)
InstallationMedia: Ubuntu-Server 24.04.2 LTS "Noble Numbat" - Release amd64
(20250216.2)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Supermicro Super Server
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=/boot/vmlinuz-6.8.0-88-generic
root=UUID=df603efd-4031-4d3f-a666-de9913655d83 ro crashkernel=512M panic=10
crashkernel=512M panic=10
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
linux-restricted-modules-6.8.0-88-generic N/A
linux-backports-modules-6.8.0-88-generic N/A
linux-firmware 20240318.git3b128b60-0ubuntu2.21
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/18/2024
dmi.bios.release: 5.35
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 2.2
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H13SAE-MF
dmi.board.vendor: Supermicro
dmi.board.version: 2.00
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr2.2:bd11/18/2024:br5.35:svnSupermicro:pnSuperServer:pvr0123456789:rvnSupermicro:rnH13SAE-MF:rvr2.00:cvnSupermicro:ct17:cvr0123456789:skuTobefilledbyO.E.M.:
dmi.product.family: Family
dmi.product.name: Super Server
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug noble
** Description changed:
My server crashed while running KVM virtual machines.
Kernel: 6.8.0-86-generic
Hardware: Supermicro H13SAE-MF
Error in dmesg:
BUG: unable to handle page fault for address: 0000000000051db0
RIP: task_change_group_fair+0xa9/0x180
Happened while KVM guests were active.
Expect stable operation, got kernel oops instead.
ProblemType: Bug
DistroRelease: Ubuntu 24.04
===== Kernel & OS Info =====
Kernel: 6.8.0-88-generic
- Full uname: Linux evoxt-hk-16.evoxt.com 6.8.0-88-generic #89-Ubuntu SMP
PREEMPT_DYNAMIC Sat Oct 11 01:02:46 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
+ Full uname: Linux _ 6.8.0-88-generic #89-Ubuntu SMP PREEMPT_DYNAMIC Sat Oct
11 01:02:46 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Kernel version: Linux version 6.8.0-88-generic (buildd@lcy02-amd64-004)
(x86_64-linux-gnu-gcc-13 (Ubuntu 13.3.0-6ubuntu2~24.04) 13.3.0, GNU ld (GNU
Binutils for Ubuntu) 2.42) #89-Ubuntu SMP PREEMPT_DYNAMIC Sat Oct 11 01:02:46
UTC 2025
Distro: Ubuntu 24.04.3 LTS
Installed kernel packages:
rc linux-image-6.8.0-71-generic 6.8.0-71.71
amd64 Signed kernel image generic
rc linux-image-6.8.0-78-generic 6.8.0-78.78
amd64 Signed kernel image generic
rc linux-image-6.8.0-79-generic 6.8.0-79.79
amd64 Signed kernel image generic
rc linux-image-6.8.0-83-generic 6.8.0-83.83
amd64 Signed kernel image generic
rc linux-image-6.8.0-84-generic 6.8.0-84.84
amd64 Signed kernel image generic
rc linux-image-6.8.0-85-generic 6.8.0-85.85
amd64 Signed kernel image generic
rc linux-image-6.8.0-86-generic 6.8.0-86.87
amd64 Signed kernel image generic
ii linux-image-6.8.0-87-generic 6.8.0-87.88
amd64 Signed kernel image generic
ii linux-image-6.8.0-88-generic 6.8.0-88.89
amd64 Signed kernel image generic
ii linux-image-6.8.0-90-generic 6.8.0-90.91
amd64 Signed kernel image generic
ii linux-image-generic 6.8.0-90.91
amd64 Generic Linux kernel image
===== Hardware Info =====
System Manufacturer: Supermicro
System Product Name: Super Server
System Version: 0123456789
BIOS Vendor: American Megatrends International, LLC.
BIOS Version: 2.2
BIOS Release Date: 11/18/2024
CPU: AMD Ryzen 9 7950X3D 16-Core Processor
- AMD Ryzen 9 7950X3D 16-Core Processor Unknown
CPU @ 4.2GHz
+ AMD Ryzen 9 7950X3D 16-Core Processor Unknown
CPU @ 4.2GHz
Memory:
- total used free shared buff/cache
available
+ total used free shared buff/cache
available
Mem: 183Gi 172Gi 6.5Gi 11Mi 6.0Gi
10Gi
Swap: 319Gi 34Gi 285Gi
===== Boot & Kernel Config =====
Kernel cmdline: BOOT_IMAGE=/boot/vmlinuz-6.8.0-88-generic
root=UUID=df603efd-4031-4d3f-a666-de9913655d83 ro crashkernel=512M panic=10
crashkernel=512M panic=10
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
Kernel config: not available
===== KVM / Virtualization =====
KVM modules loaded:
kvm_amd 208896 611
kvm 1409024 312 kvm_amd
irqbypass 12288 1 kvm
ccp 143360 1 kvm_amd
ProblemType: Bug
DistroRelease: Ubuntu 24.04
Package: linux-image-6.8.0-88-generic 6.8.0-88.89
ProcVersionSignature: Ubuntu 6.8.0-88.89-generic 6.8.12
Uname: Linux 6.8.0-88-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version
k6.8.0-88-generic.
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.28.1-0ubuntu3.8
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/controlC1',
'/dev/snd/hwC1D0', '/dev/snd/pcmC1D2c', '/dev/snd/pcmC1D1c',
'/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D0c', '/dev/snd/pcmC1D0p',
'/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0',
'/dev/snd/pcmC0D9p', '/dev/snd/pcmC0D8p', '/dev/snd/pcmC0D7p',
'/dev/snd/pcmC0D3p', '/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'
CasperMD5CheckResult: unknown
Date: Thu Dec 11 22:05:04 2025
InstallationDate: Installed on 2025-08-05 (128 days ago)
InstallationMedia: Ubuntu-Server 24.04.2 LTS "Noble Numbat" - Release amd64
(20250216.2)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: Supermicro Super Server
ProcEnviron:
- LANG=en_US.UTF-8
- PATH=(custom, no user)
- SHELL=/bin/bash
- TERM=xterm-256color
- XDG_RUNTIME_DIR=<set>
+ 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=/boot/vmlinuz-6.8.0-88-generic
root=UUID=df603efd-4031-4d3f-a666-de9913655d83 ro crashkernel=512M panic=10
crashkernel=512M panic=10
crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
RebootRequiredPkgs: Error: path contained symlinks.
RelatedPackageVersions:
- linux-restricted-modules-6.8.0-88-generic N/A
- linux-backports-modules-6.8.0-88-generic N/A
- linux-firmware 20240318.git3b128b60-0ubuntu2.21
+ linux-restricted-modules-6.8.0-88-generic N/A
+ linux-backports-modules-6.8.0-88-generic N/A
+ linux-firmware 20240318.git3b128b60-0ubuntu2.21
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/18/2024
dmi.bios.release: 5.35
dmi.bios.vendor: American Megatrends International, LLC.
dmi.bios.version: 2.2
dmi.board.asset.tag: To be filled by O.E.M.
dmi.board.name: H13SAE-MF
dmi.board.vendor: Supermicro
dmi.board.version: 2.00
dmi.chassis.asset.tag: Chassis Asset Tag
dmi.chassis.type: 17
dmi.chassis.vendor: Supermicro
dmi.chassis.version: 0123456789
dmi.modalias:
dmi:bvnAmericanMegatrendsInternational,LLC.:bvr2.2:bd11/18/2024:br5.35:svnSupermicro:pnSuperServer:pvr0123456789:rvnSupermicro:rnH13SAE-MF:rvr2.00:cvnSupermicro:ct17:cvr0123456789:skuTobefilledbyO.E.M.:
dmi.product.family: Family
dmi.product.name: Super Server
dmi.product.sku: To be filled by O.E.M.
dmi.product.version: 0123456789
dmi.sys.vendor: Supermicro
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https://bugs.launchpad.net/bugs/2135005
Title:
BUG: unable to handle page fault for address: 000000000000b7ce
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