** Changed in: linux (Ubuntu Cosmic)
Status: New => In Progress
** Changed in: linux (Ubuntu Cosmic)
Assignee: (unassigned) => Po-Hsu Lin (cypressyew)
** Changed in: ubuntu-kernel-tests
Assignee: (unassigned) => Po-Hsu Lin (cypressyew)
** Changed in: ubuntu-kernel-tests
Status: New => In Progress
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https://bugs.launchpad.net/bugs/1826385
Title:
ftrace in ubuntu_kernel_selftests hang with Cosmic kernel
Status in ubuntu-kernel-tests:
In Progress
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Cosmic:
In Progress
Bug description:
This issue is a bit strange.
The test has passed with Cosmic 4.18.0-18.19 generic kernel on AMD64
node during our SRU testing process.
https://pastebin.ubuntu.com/p/HN2vN6fCXn/
However, Tyler found that this test will hang after:
[30] Kretprobe dynamic event with maxactive [PASS]
[31] Register/unregister many kprobe events [PASS]
And this is 100% reproducible.
No relevant output in syslog.
This will need further investigation.
ProblemType: Bug
DistroRelease: Ubuntu 18.10
Package: linux-image-4.18.0-18-generic 4.18.0-18.19
ProcVersionSignature: User Name 4.18.0-18.19-generic 4.18.20
Uname: Linux 4.18.0-18-generic x86_64
AlsaDevices:
total 0
crw-rw---- 1 root audio 116, 1 Apr 25 07:16 seq
crw-rw---- 1 root audio 116, 33 Apr 25 07:16 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay': 'aplay'
ApportVersion: 2.20.10-0ubuntu13.2
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord':
'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
Date: Thu Apr 25 07:18:51 2019
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig': 'iwconfig'
Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
MachineType: QEMU Standard PC (i440FX + PIIX, 1996)
PciMultimedia:
ProcFB: 0 cirrusdrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.18.0-18-generic
root=UUID=2f68c627-8ab4-40d5-8c06-6563436d0f96 ro
RelatedPackageVersions:
linux-restricted-modules-4.18.0-18-generic N/A
linux-backports-modules-4.18.0-18-generic N/A
linux-firmware 1.175.3
RfKill: Error: [Errno 2] No such file or directory: 'rfkill': 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/01/2014
dmi.bios.vendor: SeaBIOS
dmi.bios.version: Ubuntu-1.8.2-1ubuntu1
dmi.chassis.type: 1
dmi.chassis.vendor: QEMU
dmi.chassis.version: pc-i440fx-xenial
dmi.modalias:
dmi:bvnSeaBIOS:bvrUbuntu-1.8.2-1ubuntu1:bd04/01/2014:svnQEMU:pnStandardPC(i440FX+PIIX,1996):pvrpc-i440fx-xenial:cvnQEMU:ct1:cvrpc-i440fx-xenial:
dmi.product.name: Standard PC (i440FX + PIIX, 1996)
dmi.product.version: pc-i440fx-xenial
dmi.sys.vendor: QEMU
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