Ubuntu
linux package

"CE: hpet increased min_delta_ns to 20113 nsec" after ~30 minutes from the boot

Bug #811440 reported by Raul SA on 2011-07-16

This bug affects 4 people

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Expired	Low	Unassigned

Bug Description

Sometimes happens after 30 or 40 minutes from the start.

Dmesg shows: "CE: hpet increased min_delta_ns to 20113 nsec"

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: linux-image-2.6.38-10-generic 2.6.38-10.46
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: raul 1353 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0500000 irq 48'
   Mixer name : 'Realtek ALC883'
   Components : 'HDA:10573055,10573055,00100700 HDA:10ec0883,17341234,00100002'
   Controls : 28
   Simple ctrls : 17
Date: Sat Jul 16 11:24:37 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
MachineType: FUJITSU SIEMENS AMILO Pi 2530
ProcEnviron:
LANGUAGE=es_ES:en
LANG=es_ES.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-10-generic root=UUID=e03de110-2332-484c-ab8e-07189b4935e9 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-2.6.38-10-generic N/A
linux-backports-modules-2.6.38-10-generic N/A
linux-firmware 1.52
RfKill:
0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: linux
StagingDrivers: lirc_ite8709
UpgradeStatus: No upgrade log present (probably fresh install)
WifiSyslog: Jul 16 11:07:16 laptop kernel: [ 1575.263065] CE: hpet increased min_delta_ns to 20113 nsec
dmi.bios.date: 07/02/2007
dmi.bios.vendor: Phoenix
dmi.bios.version: 1.03C
dmi.board.name: F42
dmi.board.vendor: FUJITSU SIEMENS
dmi.board.version: 00030D0000000001
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU SIEMENS
dmi.modalias: dmi:bvnPhoenix:bvr1.03C:bd07/02/2007:svnFUJITSUSIEMENS:pnAMILOPi2530:pvr:rvnFUJITSUSIEMENS:rnF42:rvr00030D0000000001:cvnFUJITSUSIEMENS:ct10:cvr:
dmi.product.name: AMILO Pi 2530
dmi.sys.vendor: FUJITSU SIEMENS

Tags:

Revision history for this message

Raul SA (raulsiguenza) wrote on 2011-07-16:

AcpiTables.txt Edit (122.0 KiB, text/plain; charset="utf-8")
AlsaDevices.txt Edit (703 bytes, text/plain; charset="utf-8")
AplayDevices.txt Edit (385 bytes, text/plain; charset="utf-8")
ArecordDevices.txt Edit (382 bytes, text/plain; charset="utf-8")
BootDmesg.txt Edit (52.8 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (257 bytes, text/plain; charset="utf-8")
Card0.Amixer.values.txt Edit (3.2 KiB, text/plain; charset="utf-8")
Card0.Codecs.codec.0.txt Edit (159 bytes, text/plain; charset="utf-8")
Card0.Codecs.codec.1.txt Edit (12.5 KiB, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (2.0 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (1.9 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (559 bytes, text/plain; charset="utf-8")
Lspci.txt Edit (33.2 KiB, text/plain; charset="utf-8")
Lsusb.txt Edit (508 bytes, text/plain; charset="utf-8")
PciMultimedia.txt Edit (2.3 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcCpuinfo_.txt Edit (1.4 KiB, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (1.6 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (2.4 KiB, text/plain; charset="utf-8")
UdevDb.txt Edit (108.9 KiB, text/plain; charset="utf-8")
UdevLog.txt Edit (258.3 KiB, text/plain; charset="utf-8")

Brad Figg (brad-figg) on 2011-07-19

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

Alvaro Leal (Effenberg0x0) (effenberg0x0) wrote on 2011-10-12:

I have two desktops with the ASUS M4A89GTD Pro/USB3 Motherboard. Both have the same internal components and configs, except for the VGA models.

## SETUP ##
ASUS M4A89GTD Pro/USB3 Motherboard (specs: http://www.asus.com/Motherboards/AMD_AM3/M4A89GTD_PROUSB3/#specifications)
Realtec ALC892 Sound (snd-hda-intel)
AMD Phenom II X6 1100T BE (Black Edition)
4 x Kingston DDR3 1333 4GB (16GB in each PC)
Nvidia 9500GT / Nvidia GTS500 - Using proprietary Nvidia drivers v. 285.05.09 (64Bit)
1 x Western Digital SATA3 1TB Black Edition HDD (motherboard AHCI mode)
Corsair PSU 800W
OS: Ubuntu Oneiric 64Bit
Kernel: 3.0.0-0300-generic #201107220917 SMP Fri Jul 22 09:20:45 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux

Both present this message on dmesg, while other similar PCs here don't have this message.

Adding clocksource=tsc to grub options makes the message go away.

Regards,
Effenberg

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2011-10-13:

Would it be possible for you to test the latest upstream kernel? It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the release candidate kernel versus the daily build. Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

tags:

added: needs-upstream-testing

Revision history for this message

Alvaro Leal (Effenberg0x0) (effenberg0x0) wrote on 2011-10-13:

Sure, I'll do tests still today and post the results.
Thanks Joseph.

Revision history for this message

Alvaro Leal (Effenberg0x0) (effenberg0x0) wrote on 2011-10-13:

Well, I think I can say that both RC8 and 3.1.0-999.201110040905_amd64 are very likely free from this problem. I could not install RC9 (had a weird dependency problem).

I tested two machines for exactly 45 minutes and had no mention whatsoever to the min_delta message reported here. Normally in a matter of 10 minutes I had lots of instances of the message.

The PCs were under heavy use: playing mp3 over network, running VirtualBox host with Win7-64 Guests, OpenGL tests, accelerated desktop (Nvidia), 1080p video playing, libreoffice, browsing, using network (smb) for large file transfers, plus more stuff. I'll keep them in "stress test" for a day and report again, but at this point I'm pretty sure if we still had the problem dmesg would be full of the min_delta increase msgs.

Regards,
Effenberg

Joseph Salisbury (jsalisbury) on 2011-10-13

Changed in linux (Ubuntu):
status:	Confirmed → Triaged
tags:	added: kernel-fixed-upstream removed: needs-upstream-testing

Joseph Salisbury (jsalisbury) on 2011-10-24

tags:

added: kernel-fixed-upstream-v3.1-rc8
removed: kernel-fixed-upstream

Revision history for this message

Alvaro Leal (Effenberg0x0) (effenberg0x0) wrote on 2011-10-24:

Bug is back again on Kernel 3.1.0 RC9. Same message below can be seen in dmesg.

[ 1562.139935] CE: hpet increased min_delta_ns to 20113 nsec

Please advise.

Thanks,
Effenberg

Revision history for this message

Joseph Salisbury (jsalisbury) wrote on 2011-10-24:

But you did not see this bug in 3.1.0 RC8 at all?

Revision history for this message

Alvaro Leal (Effenberg0x0) (effenberg0x0) wrote on 2011-10-25:

Didn't happen in RC8. As a curiosity: There are 97 bug reports here at launchpad (related, unrelated) in which users (willingly, unwillingly) posted their logs with this error message. I see it's out of the scope of Ubuntu and will report to kernel.org.

Thanks,
Effenberg

Revision history for this message

Guy (guy-b) wrote on 2012-09-09:

Hi,

I'm facing this too on a up to date ubuntu 12.04 with a Phenom II x6 BE with kernel 3.2.0-30-generic and previous (seens 3.2 kernels?).

Sep 9 20:46:10 localhost kernel: [ 7763.972626] CE: hpet increased min_delta_ns to 20113 nsec

Revision history for this message

Guy (guy-b) wrote on 2012-09-24:

#10

This morning I have now two messages at the same time (3.2.0-31-generic) :

09-24 11:44 kernel: [15662.284460] CE: hpet increased min_delta_ns to 20113 nsec
09-24 11:44 kernel: [15662.284785] CE: hpet increased min_delta_ns to 30169 nsec

I would like to mention that I'm using two unifying logitech receivers because my mouse had to be changed three days ago, the keyboard and mouse are not yet paired. I'm asking myself if this could be a reason for this messages. As soon as they will be paired I will see if a get one or two messages... Before I had only one as mentionned in #9.

Revision history for this message

penalvch (penalvch) wrote on 2013-11-25:

#11

Raul SA, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p linux <replace-with-bug-number>

Also, could you please test the latest upstream kernel available (not the daily folder) following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER

where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.13-rc1

This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing

If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER

As well, please remove the tag:
needs-upstream-testing

Once testing of the upstream kernel is complete, please mark this bug's Status as Confirmed. Please let us know your results. Thank you for your understanding.

tags:	added: bios-outdated-1.15
Changed in linux (Ubuntu):
importance:	Undecided → Low
status:	Triaged → Incomplete

Revision history for this message

Launchpad Janitor (janitor) wrote on 2014-01-24:

#12

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]

Changed in linux (Ubuntu):
status:	Incomplete → Expired

Revision history for this message

Alan Pope 🍺🐧🐱 🦄 (popey) wrote on 2014-04-30:

#13

I'm still seeing this on 3.12.5-031205-generic.

tags:

added: kernel-bug-exists-upstream-3.12.5

Revision history for this message

penalvch (penalvch) wrote on 2014-05-01:

#14

Alan Pope ㋛, thank you for your comment. So your hardware and problem may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into a Ubuntu repository kernel (not a mainline one) via:
ubuntu-bug linux

For more on this, please read the official Ubuntu documentation:
Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue
Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports
Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette