Public bug reported:
In doing certification testing on an HP DL385p Gen8 server with an AMD
Opteron(tm) Processor 6320 CPU, we've run into some clock issues, as
illustrated by the following:
$ for x in `seq 0 9`; do start=`date +"%s"`; sleep 60; stop=`date +"%s"`; echo
"$stop - $start"|bc; done
65
62
60
60
60
61
60
60
60
61
This should produce a string of "60" values, and does on most systems;
however, on the DL385p Gen8, the output shown above is quite irregular.
(The test we use in the certification suite is more specialized and is
not this exact test; the above is simply an easy-to-reproduce bash
variant.)
The system in question is "phelps" in OIL.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-15-generic 4.4.0-15.31
ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6
Uname: Linux 4.4.0-15-generic x86_64
AlsaDevices:
total 0
crw-rw----+ 1 root audio 116, 1 Mar 29 14:43 seq
crw-rw----+ 1 root audio 116, 33 Mar 29 14:43 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: [Errno 2] No such file or directory: 'fuser'
Date: Wed Mar 30 12:13:22 2016
HibernationDevice: RESUME=UUID=b6a44b05-ebe0-4d1c-a525-69d4748960f8
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
MachineType: HP ProLiant DL385p Gen8
PciMultimedia:
ProcEnviron:
TERM=screen
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB:
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-15-generic
root=UUID=96485ede-c1a8-407d-9960-f4cfa725ea89 ro rootdelay=60
RelatedPackageVersions:
linux-restricted-modules-4.4.0-15-generic N/A
linux-backports-modules-4.4.0-15-generic N/A
linux-firmware 1.157
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 02/06/2014
dmi.bios.vendor: HP
dmi.bios.version: A28
dmi.chassis.type: 23
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrA28:bd02/06/2014:svnHP:pnProLiantDL385pGen8:pvr:cvnHP:ct23:cvr:
dmi.product.name: ProLiant DL385p Gen8
dmi.sys.vendor: HP
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug uec-images xenial
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https://bugs.launchpad.net/bugs/1563970
Title:
Clock issues on AMD Opteron(tm) Processor 6320
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