[Bug 261291] ESX NFS4.1 client hangs, server never responds to EXCHANGE_ID/CREATE_SESSION

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 08 Feb 2022 23:19:09 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261291

--- Comment #14 from Alan Somers <asomers@FreeBSD.org> ---
Great find!  We are following up with VMWare now.  About that error code
though, if I'm reading the RFC correctly, it seems like we should send
NFS4ERR_SEQ_MISORDERED instead of NFS4ERR_STALE_CLIENTID, according to the
first paragraph on page 521.  Do you agree?  I'm getting set up to reproduce
this problem on demand now.  Hopefully I'll be able to test any fixes to either
side.

Also, FTR I discovered that nfsrevoke can snap the client out of its infinite
loop.

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