** Also affects: ubuntu-kernel-tests
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1793464
Title:
Kernel panic after the ubuntu_nbd_smoke_test on Xenial kernel
Status in ubuntu-kernel-tests:
New
Status in linux package in Ubuntu:
Incomplete
Bug description:
This issue can be reproduced on AMD64 KVM //bare-metal node, s390x zKVM node
The test itself will pass, but the system will hang after a few second.
Steps:
1. Deploy a node with 4.4 Xenial
2. Run the ubuntu_nbd_smoke_test
If you have access to the console, you will see that this system
actually bumped into a kernel panic:
Unable to handle kernel pointer dereference in virtual kernel address space
failing address: 000003ff802c1000 TEID: 000003ff802c1803
Fault in home space mode while using kernel ASCE.
Log here: https://pastebin.ubuntu.com/p/dNmtvbGjmz/
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-136-generic 4.4.0-136.162
ProcVersionSignature: Ubuntu 4.4.0-136.162-generic 4.4.144
Uname: Linux 4.4.0-136-generic s390x
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code
2: ls: cannot access '/dev/snd/': No such file or directory
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: s390x
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211
not found.
Date: Thu Sep 20 03:46:00 2018
HibernationDevice: RESUME=UUID=ca468a9c-9563-442c-85c6-6055e800a66e
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lspci:
Lsusb: Error: command ['lsusb'] failed with exit code 1:
PciMultimedia:
ProcFB: Error: [Errno 2] No such file or directory: '/proc/fb'
ProcKernelCmdLine: root=UUID=b65b756a-ba4e-4c53-aa32-0db2bdb50bb3
crashkernel=196M
RelatedPackageVersions:
linux-restricted-modules-4.4.0-136-generic N/A
linux-backports-modules-4.4.0-136-generic N/A
linux-firmware 1.157.20
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
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