Hi Thomas,
thank you for the help to gather more information.
I added "initcall_debug" in grub and tested the suspend / cpu-lockup problem
after a rebooting into the new grub config.
I tried it different times, and can say, that the connected Thunderbolt
dock was not the problem, as the cpu-lockup also happens, when the
laptop was not connected to anything.
It is not happening on each suspend, but after some rounds of
suspend+resume I can see the problem.
In the attachment is the kern.log with two incidents, the last one took quite a
while (8000s).
If you have any other idea or have things I can test, I am happy to
help!
Best regards,
Michael
** Attachment added: "kernel.log.tgz"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1957808/+attachment/5560417/+files/kernel.log.tgz
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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1957808
Title:
Kernel soft lockup after resume
Status in linux package in Ubuntu:
Confirmed
Bug description:
Sometimes the kernel hangs after resuming from suspend.
It might be a problem when suspending, while the DELL thunderbolt dock is
connected.
ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: linux-image-5.13.0-25-generic 5.13.0-25.26
ProcVersionSignature: Ubuntu 5.13.0-25.26-generic 5.13.19
Uname: Linux 5.13.0-25-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
AudioDevicesInUse:
USERPID ACCESS COMMAND
/dev/snd/controlC0: minni 5443 F pulseaudio
/dev/snd/pcmC0D0c: minni 5443 F...m pulseaudio
/dev/snd/pcmC0D0p: minni 5443 F...m pulseaudio
/dev/snd/timer: minni 5443 f pulseaudio
CasperMD5CheckResult: unknown
CurrentDesktop: ubuntu:GNOME
Date: Thu Jan 13 15:53:19 2022
InstallationDate: Installed on 2020-12-19 (389 days ago)
InstallationMedia: Ubuntu 20.10 "Groovy Gorilla" - Release amd64 (20201022)
MachineType: Dell Inc. XPS 15 9500
ProcFB: 0 i915drmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-5.13.0-25-generic
root=/dev/mapper/vgubuntu-root ro quiet splash acpi_osi=Linux vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-5.13.0-25-generic N/A
linux-backports-modules-5.13.0-25-generic N/A
linux-firmware 1.201.3
SourcePackage: linux
UpgradeStatus: Upgraded to impish on 2021-10-17 (88 days ago)
dmi.bios.date: 05/26/2021
dmi.bios.release: 1.8
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.1
dmi.board.name: 05XYW7
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 10
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.8.1:bd05/26/2021:br1.8:svnDellInc.:pnXPS159500:pvr:rvnDellInc.:rn05XYW7:rvrA00:cvnDellInc.:ct10:cvr:sku097D:
dmi.product.family: XPS
dmi.product.name: XPS 15 9500
dmi.product.sku: 097D
dmi.sys.vendor: Dell Inc.
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