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Re: [Xen-devel] [PATCH] libxc: increase maximum migration stream record length

On 10/08/17 14:26, Andrew Cooper wrote:
> On 10/08/17 12:24, Juergen Gross wrote:
>> Today the maximum record lenth in a migration stream is 8MB. This
>> limits the size of a PV domain to a little bit less than 1TB in the
>> migration case, as the P2M frame list will exceed 8MB in this case.
>> Raising the record size limit by a factor of 16 allows for domain
>> sizes of nearly 16TB to be migrated. This ought to be enough.
>> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> Hmm - Changing this isn't something I've considered when it comes to ABI
> compatibility.  I also see that there is no mention of the maximum
> record length in the stream spec, which is an oversight.
> Worse still, there is no record length check in the python utilities,
> but both sides of the C code perform the check.
> Let me ponder the implications.

Any result yet?


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