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

In reply to: bugzilla-noreply_a_freebsd.org: "[Bug 261291] ESX NFS4.1 client hangs, server never responds to EXCHANGE_ID/CREATE_SESSION"
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From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 10 Feb 2022 23:28:46 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=261291

--- Comment #20 from Alan Somers <asomers@FreeBSD.org> ---
Created attachment 231735
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=231735&action=edit
Workaround ESXi's CREATE_SESSION sequence_id bug

Thanks for that idea.  Attached is what I'm testing right now.  It works for my
simple reproduction case, and I'll find out by Monday if it works for real.

What it does is to check the nii_domain of the client.  If it's "vmware.com",
then it simply ignores sequence_id during CREATE_SESSION.  It also adds a
sysctl to switch that behavior on or off.

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