K 10
svn:author
V 8
rmacklem
K 8
svn:date
V 27
2018-11-20T01:56:34.377659Z
K 7
svn:log
V 275
nfsm_advance() would panic() when the offs argument was negative.
The code assumed that this would indicate a corrupted mbuf chain, but
it could simply be caused by bogus RPC message data.
This patch replaces the panic() with a printf() plus error return.

MFC after:	1 week

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