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Re: [Xen-devel] [PATCH for-4.13 2/2] Rationalize max_grant_frames and max_maptrack_frames handling
- To: "Durrant, Paul" <pdurrant@xxxxxxxxxx>
- From: Ian Jackson <ian.jackson@xxxxxxxxxx>
- Date: Wed, 27 Nov 2019 11:10:04 +0000
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- Cc: Juergen Gross <jgross@xxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Wei Liu <wl@xxxxxxx>, Paul Durrant <paul@xxxxxxx>, Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, Hans van Kranenburg <hans@xxxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxx>
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Durrant, Paul writes ("RE: [Xen-devel] [PATCH for-4.13 2/2] Rationalize
max_grant_frames and max_maptrack_frames handling"):
> > -----Original Message-----
> > From: Xen-devel <xen-devel-bounces@xxxxxxxxxxxxxxxxxxxx> On Behalf Of Ian
> > Jackson
> > I have seen reports of users who ran out of grant/maptrack frames
> > because of updates to use multiring protocols etc. The error messages
> > are not very good and the recommended workaround has been to increase
> > the default limit on the hypervisor command line.
> >
> > It is important that we don't break that workaround!
>
> Alas it has apparently been broken for several releases now :-(
I guess at least in Debian (where I have seen this) we haven't
released with any affected versions yet...
Ian.
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