[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2015-06-17 Thread Rolf Leggewie
lucid has seen the end of its life and is no longer receiving any updates. Marking the lucid task for this ticket as "Won't Fix". ** Changed in: linux (Ubuntu Lucid) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscr

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2014-07-29 Thread Joe Terranova
Per your request, created bug #1349883 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727459 Title: TSC is not reliable under Xen on some Intel CPUs To manage notifications about this bug go to: htt

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2014-07-29 Thread Stefan Bader
@Joe, please open a new bug report for this. I am not sure that in your case there will be the same unreasonable high process times in top. And even if, the kernel version for EC2 in Precise had very special Xen code. So it is unlikely the same bug re-surfacing. I believe "ubuntu-bug linux" should

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2014-07-28 Thread Joe Terranova
Per request, I've updated to the latest kernel, 3.13.0-32-generic, and still have the issue. Updated dmesg attached. ** Attachment added: "dmesg output on 3.13.0-32-generic" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/727459/+attachment/4164624/+files/sample%20dmesg%20new.txt -- You

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2014-07-28 Thread Joe Terranova
Full dmesg log as requested ** Attachment added: "full dmesg output" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/727459/+attachment/4164601/+files/full%20dmesg.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://b

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2014-07-28 Thread Joe Terranova
Having the same issue on Trusty 3.13.0-29-generic #53-Ubuntu SMP Wed Jun 4 21:00:20 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux This is occurring for me on some EC2 instances. Not continuously, but sporadically when launching new instances. I've attached a sample of the dmesg log showing the time ju

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2014-07-28 Thread Brad Figg
** Also affects: linux (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Trusty) Status: New => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/7274

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-05-18 Thread Launchpad Bug Tracker
** Branch linked: lp:ubuntu/lucid-proposed/linux-ec2 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727459 Title: TSC is not reliable under Xen on some Intel CPUs -- ubuntu-bugs mailing list ubuntu

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-05-17 Thread Stefan Bader
** Description changed: + SRU Justification + + Impact: When applying the Xen patchset one endif seems to have gone to + the wrong place. So instead of not setting sched_clock_stable it is done + all the time. + + Fix: Move endif so the whole code segment is covered. + + Testcase: Can cause var

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-05-17 Thread Stefan Bader
** Changed in: linux (Ubuntu) Status: Triaged => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727459 Title: TSC is not reliable under Xen on some Intel CPUs -- ubuntu-bugs mai

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-05-17 Thread Robbie Williamson
** Changed in: linux (Ubuntu Lucid) Milestone: None => lucid-updates -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727459 Title: TSC is not reliable under Xen on some Intel CPUs -- ubuntu-bugs

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-04-13 Thread Stefan Bader
I would rather suspect that this is no problem after 10.04 as Xen code is much more integrated into the common kernel code. As for the patch. I sort of was hitting this while going over a big set of changes that we are missing and I think the way it currently is was a bug while porting the initial

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-03-17 Thread Andy Whitcroft
@Doug -- do we know if this is still an issue with Natty instances in -ec2? I would like to confirm this is at least fixed in the next release. If you are able to test and confirm that would be very helpful. Nominating for Lucid as your test kernels are versioned there. ** Also affects: linux (

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-03-09 Thread Doug Mitchell
Here is a patch we are testing now. Thanks, Doug ** Patch added: "xen-sched-clock-unstable.diff" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/727459/+attachment/1897925/+files/xen-sched-clock-unstable.diff -- You received this bug notification because you are a member of Ubuntu Bug

[Bug 727459] Re: TSC is not reliable under Xen on some Intel CPUs

2011-03-01 Thread Doug Mitchell
** Summary changed: - TSC is not reliable undex Xen on some Intel CPUs + TSC is not reliable under Xen on some Intel CPUs -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/727459 Title: TSC is not reli