Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

On 11/16/2017 02:19 PM, Hans van Kranenburg wrote: > > Latest work on this: > > https://patchwork.kernel.org/patch/10035835/ > > "Applied to for-linus-4.15." Ok, I just built a 4.9.65 kernel with this patch on top and the config from debian (config-4.9.0-4-amd64). It applies without

Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

On 11/15/2017 02:19 PM, Hans van Kranenburg wrote: > > [...] > > I see that all the discussions linked above have gone silent quickly > without a solution. ...because discussions continued in later versions of a patch... > A post to the Xen mailing list on Aug 31th did not get any answer yet:

Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

Hi, I ran into the same issue with 4.9.51-1 in the guest. My dom0 in this case is still Jessie with its xen 4.4 version. Users (rightfully) worry about what's suddenly wrong with their virtual machine, since the steal values mess up the cpu graphs. I see that all the discussions linked above

Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

There is currently a discussion on LKML and xen-devel about this issue: https://lkml.org/lkml/2017/10/10/182 Maybe this will result in some backportable fix.

Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

> Am 25.09.2017 um 02:07 schrieb Ben Hutchings : > > I agree that the kernel ought to work around this, but I'm hesitant to > add a fix that doesn't look like any upstream change. Why and how do > you think this was fixed in 4.11? Indeed this patch is not included

Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

Control: severity -1 important Control: tag -1 moreinfo On Wed, 2017-08-09 at 22:46 +0200, Michael Lass wrote: > Package: src:linux > Version: 4.9.30-2+deb9u3 > Severity: normal > Tags: patch > > Dear Maintainer, > > running Debian Stretch as a paravirtualized guest under Xen, the kernel >

Bug#871608: linux-image-4.9.0-3-amd64: Linux kernel should handle decreasing cpu steal clock counter gracefully

Package: src:linux Version: 4.9.30-2+deb9u3 Severity: normal Tags: patch Dear Maintainer, running Debian Stretch as a paravirtualized guest under Xen, the kernel obtains its cpu steal time counter from the virtualization host. On some hosts, occasionally a slight decrease in the cpu steal time