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Re: [Xen-users] Xen 4.12 DomU hang / freeze / stall under high network/disk load

  • To: Glen <glenbarney@xxxxxxxxx>
  • From: Sarah Newman <srn@xxxxxxxxx>
  • Date: Thu, 13 Feb 2020 19:20:02 -0800
  • Cc: Xen-users <xen-users@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Fri, 14 Feb 2020 03:20:36 +0000
  • Dkim-filter: OpenDKIM Filter v2.11.0 mail.prgmr.com 03CAE7200BE
  • List-id: Xen user discussion <xen-users.lists.xenproject.org>

On 2/13/20 7:06 PM, Sarah Newman wrote:

I'd recommend you start by attempting to reproduce the problem as fast as possible, with the setup as-is, before changing anything. 4 days is too long to have any certainty.

BTW, if it's the domU network load - you would probably reproduce fastest by 
running testing between 2 domUs on the same dom0, if you can.

Another thing I do is look through the commit logs in the Linux and Xen branches compared to my current version for any related commits that might be fixes. Linux I'm not sure but maybe both the 4.9 and 4.14 LTS git commit histories, Xen you would look at the staging-4.12 branch.

This suggests you're already able to reproduce the problem, so that you can 
retest after applying the patch.


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