[Bug 275905] nfs client: mount becomes unresponsive

From: <bugzilla-noreply_at_freebsd.org>
Date: Sun, 24 Dec 2023 16:01:02 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=275905

--- Comment #5 from Lexi <lexi.freebsd@le-fay.org> ---
the client keytab should be fine, since i only created it about 2 days ago when
i installed this host and there was no previous principal for this fqdn.

'kinit -k host/fqdn' on the client seems to work:

# kinit -k host/ilythia.eden.le-fay.org
# klist
Credentials cache: FILE:/tmp/krb5cc_0
        Principal: host/ilythia.eden.le-fay.org@EDEN.LE-FAY.ORG

  Issued                Expires               Principal
Dec 24 15:54:16 2023  Dec 25 01:54:16 2023 
krbtgt/EDEN.LE-FAY.ORG@EDEN.LE-FAY.ORG

> Does this hang occur frequently or was this a "one time" hang on a mount that usually behaves ok?

as i mentioned, i only installed this host 2 days ago, so i can't say for sure,
but so far it has reliably occurred twice about 10 hours after booting so it
seems to be 100% reproducible.  (iow, it never *hasn't* occurred at that time.)

in the mean time, i've temporarily switched the mount from sec=krb5p to
sec=krb5 to see if this fixes the issue; aiui, this means no GSS should be
involved after the initial mount, so i expect it will, but i'm happy to do any
other testing you need.

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