Re: [Xen-users] Xen3.3 / Xen3.4 CPU soft lockups under pvops 2.6.31/2.6.32

[Pim van Riezen <pi+lists@xxxxxxxxxxxx>]

On Apr 8, 2010, at 16:28 , Pasi Kärkkäinen wrote:

On Thu, Apr 08, 2010 at 01:34:24AM +0200, Pim van Riezen wrote:

We're trying to get 2.6.31 and 2.6.32 rolled out on our clusters to offer newer features like FUSE fo our customers, but we're ran into a couple of showstopper issues when deploying these kernels on busier guests, showing a lot of errors like this:

Which exact kernel versions are you using? From which kernel tree/branch?

The last we tried was 2.6.32.9 from kernel.org. Had the same results with kernel.org 2.6.31.5.

in our hope to get rid of this issue we upgraded from Xen 3.3 to Xen 3.4.1.7 out of the gitco repos. The issue persisted. Is there a magic version of Xen, preferably one that can be found in an rpm repository for CentOS 5, that *does* properly support pvops kernels without these issues?

I've used Xen 3.4.2 and Xen 4.0.0 with pvops dom0 kernels.
pvops dom0 2.6.32 kernels _require_ Xen 4.0.0 or Xen 3.4.3.

That's what I understood, too. But then I ran into this:

  [root@sausage ~]# xm dmesg | grep Xen- | head -1

  (XEN) ----[ Xen-3.3.1  x86_64  debug=n  Not tainted ]----

  [root@sausage ~]# xm create -c vps3510

  Using config file "/etc/xen/vps3510".

  Started domain vps3510

  Linux version 2.6.32.9xls-domU (root@pablo) (gcc version 4.3.3 (Ubuntu 4.3.3-5ubuntu4) ) #2 SMP Mon Apr 5 21:43:30 CEST 2010

  (...)

  CentOS release 5.4 (Final)

  Kernel 2.6.32.9xls-domU on an x86_64

  

  vps3510.xlshosting.net login: 

Am I going mad? This is a vanilla kernel.

Are there any reliable RPM sources for 3.4.2?

xen bugzilla is not actively used/maintained.
Usually the bugs are discussed/fixed on xen-devel mailinglist.

Clear.

Cheers,

Pi

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