[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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
>
_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxxx
https://lists.xenproject.org/mailman/listinfo/xen-users

 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.