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Re: [Xen-users] Xen 4.12 DomU hang / freeze / stall under high network/disk load
On Monday, February 17, 2020, Sarah Newman <srn@xxxxxxxxx> wrote:
> On 2/17/20 10:33 AM, Tomas Mozes wrote:
>
>> Just a quick note - no stall after switching to credit scheduler on xen
>> 4.12 after 3 days.
>
> That's great news. By 4.12 do you mean release 4.12.1, 4.12.2, or something else?
The latest 4.12.2 release.
>
> I'm assuming when "PGNet Dev" reported 4.12 being bad and 4.13 being good, they were using the default scheduler of credit 2.
>
> It's worth asking on xen-devel if there's a known bug in the credit 2 scheduler that's been fixed. It looks like there were some significant changes to the scheduling code in between Xen 4.12 and Xen 4.13, and if one was a fix I'm not sure it would have been recognized as being so.
Maybe it's a different issue, because the domu host hanged on 4.13 too.
>
> --Sarah
>
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