Resolver error while parsing DNS replies

[isb]

Hi,

I am trying to replay a trace using Polygraph. I am seeing this error
when Polygraph's DNS resolver fails to parse DNS replies on certain
lookups:

DnsXact.cc:94: error: 256/256 (c94) failed to parse DNServer response

In my limited tests, it seems to fail when CNAME records are returned
in the reply. It also fails on certain other replies. Is this a known
limitation? If so, are there any plans to fix it?

Thanks
Imran