Re: SCO vs. Novell; Novell wins.

2010-04-01 Thread Jerry Feldman
On 03/31/2010 11:37 PM, Jeffry Smith wrote:
 Well, Red Hat sued them, so they can't make that go away, and the main
 thing left in the IBM case is the IBM counterclaims.  Whether they're
 liabilities or not (and they're major liabilities), the decision to
 stop them doesn't reside with TSCOG any more.  I don't think either
 Red Hat or IBM are interested in settling.  IBM could have bought
 TSCOG (which is probably what they wanted to begin with).
   
I know that Red Hat did sue TSCOG, but right now, it is up to the
bankruptcy court. Not sure what would happen to these suits if TSCOG
were to go chapter 7. But, the IBM case is not just counterclaims, it is
still the contract issue, and that has not been adjudicated. Now since
the copyright issue has been resolved as well as the Novell royalty
claims, IBM and or Red Hat could petition for a lifting of the stay. But
there could be more interesting stuff. Remember that when Darth tried to
sell TSCOG to to his buddies in the York Galaxy, the litigation would
have been pursued by the buyer. And basically, the court has not ruled
on the 3 derivatives that IBM contributed to Linux. IBM must prove that
either the derivative clause itself does not apply or that it does not
apply to SMP, NUMA, and JFS. In any case, we've essentially eliminated
the SCO vs. Novell from the mix (unless by some idiocy, TSCOG decides to
appeal). I think TSCOG should sue Kevin and Darl McBride :-)



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Boston Linux and Unix
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Re: SCO vs. Novell; Novell wins.

2010-04-01 Thread Jeffry Smith
On Thu, Apr 1, 2010 at 4:11 PM, Jerry Feldman g...@blu.org wrote:
 On 03/31/2010 11:37 PM, Jeffry Smith wrote:
 Well, Red Hat sued them, so they can't make that go away, and the main
 thing left in the IBM case is the IBM counterclaims.  Whether they're
 liabilities or not (and they're major liabilities), the decision to
 stop them doesn't reside with TSCOG any more.  I don't think either
 Red Hat or IBM are interested in settling.  IBM could have bought
 TSCOG (which is probably what they wanted to begin with).

 I know that Red Hat did sue TSCOG, but right now, it is up to the
 bankruptcy court. Not sure what would happen to these suits if TSCOG
 were to go chapter 7. But, the IBM case is not just counterclaims, it is
 still the contract issue, and that has not been adjudicated. Now since
 the copyright issue has been resolved as well as the Novell royalty
 claims, IBM and or Red Hat could petition for a lifting of the stay. But
 there could be more interesting stuff. Remember that when Darth tried to
 sell TSCOG to to his buddies in the York Galaxy, the litigation would
 have been pursued by the buyer. And basically, the court has not ruled
 on the 3 derivatives that IBM contributed to Linux. IBM must prove that
 either the derivative clause itself does not apply or that it does not
 apply to SMP, NUMA, and JFS. In any case, we've essentially eliminated
 the SCO vs. Novell from the mix (unless by some idiocy, TSCOG decides to
 appeal). I think TSCOG should sue Kevin and Darl McBride :-)

I'll check Groklaw, but I don't see any sort of case now on those
issues.  All three are owned outright by IBM as the developer,
USL/Novell explicitly denied thier rights over derivitive code, Novell
(who owns the code according to this ruling), in accordance with the
APA, explicitly waived prosecution of IBM,.

Quick check - SCO is still claiming unfair competition, interference
in contracts, and interference in business relationships, based on
their last report on the case to the judge, after Judge Kimball ruled
for Novell (which it looks like this is the jury trial confirming) -
ref:  http://groklaw.net/pdf/IBM-1079.pdf

Of course, they have to prove those claims.

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Re: SCO vs. Novell; Novell wins.

2010-04-01 Thread Jerry Feldman
On 04/01/2010 09:08 AM, Jeffry Smith wrote:
 On Thu, Apr 1, 2010 at 4:11 PM, Jerry Feldman g...@blu.org wrote:
   
 On 03/31/2010 11:37 PM, Jeffry Smith wrote:
 
 Well, Red Hat sued them, so they can't make that go away, and the main
 thing left in the IBM case is the IBM counterclaims.  Whether they're
 liabilities or not (and they're major liabilities), the decision to
 stop them doesn't reside with TSCOG any more.  I don't think either
 Red Hat or IBM are interested in settling.  IBM could have bought
 TSCOG (which is probably what they wanted to begin with).

   
 I know that Red Hat did sue TSCOG, but right now, it is up to the
 bankruptcy court. Not sure what would happen to these suits if TSCOG
 were to go chapter 7. But, the IBM case is not just counterclaims, it is
 still the contract issue, and that has not been adjudicated. Now since
 the copyright issue has been resolved as well as the Novell royalty
 claims, IBM and or Red Hat could petition for a lifting of the stay. But
 there could be more interesting stuff. Remember that when Darth tried to
 sell TSCOG to to his buddies in the York Galaxy, the litigation would
 have been pursued by the buyer. And basically, the court has not ruled
 on the 3 derivatives that IBM contributed to Linux. IBM must prove that
 either the derivative clause itself does not apply or that it does not
 apply to SMP, NUMA, and JFS. In any case, we've essentially eliminated
 the SCO vs. Novell from the mix (unless by some idiocy, TSCOG decides to
 appeal). I think TSCOG should sue Kevin and Darl McBride :-)

 
Please reply to the listserv not me.
 I'll check Groklaw, but I don't see any sort of case now on those
 issues.  All three are owned outright by IBM as the developer,
 USL/Novell explicitly denied thier rights over derivitive code, Novell
 (who owns the code according to this ruling), in accordance with the
 APA, explicitly waived prosecution of IBM,.
   
Not entirely true. Novell waived the copyrights. TSOG still holds the
contractual rights. While SMP, NUMA, and JFS were developed by IBM (and
Sequent) under the strict terms of the original ATT contract these are
considered derivative works. IBM needs to prove in court that the
derivative clause does not apply. They signed their perpetual contract
with ATT before ATT sold USL to Novell. This has not yet been
adjudicated which is why I am including JFS which (IBM claims) was not
part of AIX. Basically, while Novell owwns the copyrights to the Unix
source code, TSCOG has the right to manage and sell licenses. This is
what Santa Cruz bought from Novell.
 Quick check - SCO is still claiming unfair competition, interference
 in contracts, and interference in business relationships, based on
 their last report on the case to the judge, after Judge Kimball ruled
 for Novell (which it looks like this is the jury trial confirming) -
 ref:  http://groklaw.net/pdf/IBM-1079.pdf

 Of course, they have to prove those claims.
   
In any case, there are still some rulings left in the SCO vs. Novell
case that are before Judge Stewart.

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Boston Linux and Unix
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Re: SCO vs. Novell; Novell wins.

2010-04-01 Thread Jeffry Smith
 Not entirely true. Novell waived the copyrights. TSOG still holds the
 contractual rights. While SMP, NUMA, and JFS were developed by IBM (and
 Sequent) under the strict terms of the original ATT contract these are
 considered derivative works. IBM needs to prove in court that the
 derivative clause does not apply. They signed their perpetual contract
 with ATT before ATT sold USL to Novell. This has not yet been
 adjudicated which is why I am including JFS which (IBM claims) was not
 part of AIX. Basically, while Novell owwns the copyrights to the Unix
 source code, TSCOG has the right to manage and sell licenses. This is
 what Santa Cruz bought from Novell.

Actually, Novell has the right to waive those claims, not just the
copyright.  TSCOG is agent for Novell, not owner of the contract
(that's why the contract says 100% to Novell, who remits a 5% fee to
SCO) - TSCOG has ownership of code developed after the sale.  Not the
overall rights.


 Quick check - SCO is still claiming unfair competition, interference
 in contracts, and interference in business relationships, based on
 their last report on the case to the judge, after Judge Kimball ruled
 for Novell (which it looks like this is the jury trial confirming) -
 ref:  http://groklaw.net/pdf/IBM-1079.pdf

 Of course, they have to prove those claims.

 In any case, there are still some rulings left in the SCO vs. Novell
 case that are before Judge Stewart.


Agreed - we'll see how it goes.  Of course, Darl's admission on the
stand that they didn't need the copyrights to conduct Unix business
should be pretty devastating to their case.

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Re: SCO vs. Novell; Novell wins.

2010-04-01 Thread Jeffry Smith
 While SMP, NUMA, and JFS were developed by IBM (and
 Sequent) under the strict terms of the original ATT contract these are
 considered derivative works. IBM needs to prove in court that the
 derivative clause does not apply. They signed their perpetual contract
 with ATT before ATT sold USL to Novell. This has not yet been
 adjudicated which is why I am including JFS which (IBM claims) was not
 part of AIX. Basically, while Novell owwns the copyrights to the Unix
 source code, TSCOG has the right to manage and sell licenses. This is
 what Santa Cruz bought from Novell.

1.  Only NUMA may not have the derivative clause - IBM DID have it,
and the others are theirs.

2.  IBM developed the linux JFS from theiir OS/2 JFS, which was a
clean-room implementation of JFS.  Despite what TSCOG claims,
copyright does NOT cover methods and concepts.

jeff
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[GNHLUG] [DLSLUG-Announce] TONIGHT: An Open-Source Involvement Engine - DLSLUG Monthly Meeting - 2010-04-01

2010-04-01 Thread Bill McGonigle
[no dinner rsvp's, so skipping it this month]

***
  Dartmouth-Lake Sunapee Linux User Group
   http://dlslug.org/
  a chapter of GNHLUG - http://gnhlug.org
***

The next regular monthly meeting of DLSLUG will be held:

 Thursday, April 1st, 7-9PM
at: Dartmouth College, Haldeman 041
  23 North Main Street, Hanover, NH

   All are welcome, free of charge.

   Agenda

7:00  Sign-in, networking

7:15  Introductory remarks

7:20  OpenHatch.org: An Open-Source Involvement Engine
presented by Parker Phinney

  Parker Phinney (Dartmouth '12) has just returned to campus after
  spending the Winter working for the Philadelphia-based startup
  company OpenHatch.org. OpenHatch is an open source involvement
  engine--a community website that aims to make open source
  software development more approachable, friendly, and fun!
  Parker will talk about some specific areas where participating
  in open source seems less fun or less exciting, and the things
  that OpenHatch is doing to remedy them. He wants to hear YOUR
  feedback about what you think that open source is missing and
  what sorts of features you would like to see from a site like
  OpenHatch.org. Also, time permitting, Parker may talk about Pair
  Programming and the other Extreme Programming techniques that he
  learned about while working at OpenHatch.

8:50  New York Minute

  By popular request: bring your ideas, questions, advertisements,
  job offers/searches, etc., we'll go 'round the horn and make
  introductions and announcements.


-

   Driving Directions

   Please see the website for links to driving directions.


  Refreshments

   We currently lack a refreshment sponsor.  If you or your
   company would like to provide or sponsor refreshments,
   please get in touch.

 RSVP

   RSVP by replying to this e-mail so we can give any
   refreshment sponsor a count.

  Mailing Lists

   There are two primary mailman lists set up for DLSLUG, an
   Announce list and a Discuss list. Please sign up for the
   Announce list (moderated, low-volume) to stay apprised of
   the group's activities and the Discuss list (unmoderated)
   for group discussion. Links to the mailing lists are on the
   webpage.

Tell Your Friends

   Please pass this announcement along to anyone else who may
   be interested.

-- 
Bill McGonigle, Owner
BFC Computing, LLC
http://bfccomputing.com/
Telephone: +1.603.448.4440
Email, IM, VOIP: b...@bfccomputing.com
VCard: http://bfccomputing.com/vcard/bill.vcf
Social networks: bill_mcgonigle/bill.mcgonigle
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April fools

2010-04-01 Thread Benjamin Scott
  We interrupt your regularly scheduled off-topic discussions to bring
you this message:

  http://xkcd.com/ is awesome today.

  I have found several Easter eggs so far (without cheating).

-- Ben
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Re: April fools

2010-04-01 Thread Tyson Sawyer
On Thu, Apr 1, 2010 at 12:39 PM, Benjamin Scott dragonh...@gmail.com wrote:
  We interrupt your regularly scheduled off-topic discussions to bring
 you this message:

  http://xkcd.com/ is awesome today.

  I have found several Easter eggs so far (without cheating).

I'm afraid to look.  XKCD doesn't normally post on Thursdays.  If I
look is the joke on me? ;-)

-- 
Tyson D Sawyer

A strong conviction that something must be done is the parent
of many bad measures.   - Daniel Webster

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Re: April fools

2010-04-01 Thread Tyson Sawyer
On Thu, Apr 1, 2010 at 12:54 PM, Tyson Sawyer ty...@j3.org wrote:
 On Thu, Apr 1, 2010 at 12:39 PM, Benjamin Scott dragonh...@gmail.com wrote:
  We interrupt your regularly scheduled off-topic discussions to bring
 you this message:

  http://xkcd.com/ is awesome today.

  I have found several Easter eggs so far (without cheating).

 I'm afraid to look.  XKCD doesn't normally post on Thursdays.  If I
 look is the joke on me? ;-)

OK. I looked.  Its real. :-)


-- 
Tyson D Sawyer

A strong conviction that something must be done is the parent
of many bad measures.   - Daniel Webster

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Re: SCO vs. Novell; Novell wins.

2010-04-01 Thread Jerry Feldman
On 04/01/2010 11:25 AM, Jeffry Smith wrote:
   Only NUMA may not have the derivative clause - IBM DID have it,
 and the others are theirs.

 2.  IBM developed the linux JFS from theiir OS/2 JFS, which was a
 clean-room implementation of JFS.  Despite what TSCOG claims,
 copyright does NOT cover methods and concepts.
   
While these facts might be true (and from what I have read are quite
true), the lawsuit covers all 3. Essentially, the SCO vs. IBM case has
not been adjudicated, regardless what IBM claims, it is up to the court.
IBM has been claiming from day 1 that the derivative clause itself was
waived by ATT. It comes down to contract law.

And, while Novell currently owns the copyrights, TSOG retains the
contract rights. This is why Microsoft and Sun went to TSOG, not to
Novell. That was the other issue in Utah regarding the royalties that
was resolved and not appealed. TSCOG issues and maintains the licenses,
and must pay some of the royalties to Novell.

-- 
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Boston Linux and Unix
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[GNHLUG] Vim - how to learn more - CentraLUG, April 5th

2010-04-01 Thread Ted Roche
The April meeting of the Central New Hampshire Linux User Group,
CentraLUG, will be on Monday, April 5th, at the New Hampshire Technical
Institute's Library, Room 146, starting at 7 PM. Directions and details
always available at http://www.centralug.org

Ted will talk about Vim the text editor. Developed by Bram Moolenaar and
originally released for the Amiga (on Fred Fish 591!)[1], Vim was based
on the vi editor by Bill Joy (and he, in turn was inspired by ex,
etcetera...). No expert, Ted will talk about what he's learned and where
he learned it, resources that are out there to learn or enhance the
basic functionality, and a demonstration of what he's learned so far and
how far he has to go. We'll talk about resources you can use - websites,
cheatsheets, videocasts, books - online and paper version, a really cool
one-liner, add-ons and plugins and more! Beginners interested in
learning about Vim are welcome. Experienced practitioners and experts
are welcome to share their insights and suggestions on how to learn
more.  Emacs users are welcome to make constructive comments.

As always. we will have a question and answer session, announcements,
job openings, folks looking for jobs, and general camaraderie. Hope to
see you there.

[1] http://en.wikipedia.org/wiki/Vim_(text_editor)
http://en.wikipedia.org/wiki/Vim_%28text_editor%29

-- 
Ted Roche
Ted Roche  Associates, LLC
http://www.tedroche.com

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NFS stops responding

2010-04-01 Thread Michael ODonnell

I've run out of clues (EBRAINTOOSMALL) trying to solve an NFS puzzle
and could use some help getting unstuck.  Analysis is awkward because
the customers in question are trying to make what use they can of the
machines even as these problems are ocurring around them, so reboots
and other dramatic acts have to be scheduled well in advance.

Symptoms: after approx 1 hour of apparently normal behavior, operations
like 'df -k' or 'ls -l' hang for minutes at a time and then fail with
I/O errors on any of the three machines when such operations refer to
NFS mounted directories.  At that point, doing this on all 3 machines:

   umount -f -l -a -t nfs

...followed by this:

   mount -a -t nfs

...on all 3 gets things unstuck for another hour.  (?!?!)

The 3 machines have NFS relationships thus:

  A mounts approx 6 directories from B (A-B)
  B mounts approx 6 directories from A (B-A)
  C mounts approx 6 directories from A (C-A) (same dirs as in B-A)
  C mounts approx 6 directories from B (C-B) (same dirs as in A-B)

All systems are running x86_64 CentOS5.4 on HP xw8600 workstations
connected via a Dell 2608 PowerConnect switch that's believed to be
functioning properly.  No jumbo packets.  All MTUs are the standard
1500.  I've tried specifying both UDP and TCP in the fstab lines.

I've disabled selinux.  The output of 'iptables -L' is:

   Chain INPUT (policy ACCEPT)
   target prot opt source   destination

   Chain FORWARD (policy ACCEPT)
   target prot opt source   destination

   Chain OUTPUT (policy ACCEPT)
   target prot opt source   destination

These commands:

   service nfs status ; service portmap status

...indicate nominal conditions (all expected daemons reported running)
when things are working but also when things are b0rken.

There wasn't anything very informative in /var/log/messages with the
default debug levels but messages are now accumulating there at firehose
rates because I enabled debug for everything, thus:

   for m in rpc nfs nfsd nlm; do rpcdebug -m $m -s all; done

After machine A exhibited the problem I *think* I see evidence in
/var/log/messages that the NFS client code has decided it never got a
response from the server (B) to some NFS request, so it retransmits the
request and (I think) it then concludes that the retransmitted request
also went unanswered so the operation is errored out.

I gathered some Enet traffic for Wireshark anlysis on both machines thus:

   dumpcap -i eth0 -w /tmp/`hostname`.pcap

...and viewed the client traffic with Wireshark, which (apparently)
confirms that the client did indeed wait a while and then (apparently)
retransmitted the NFS request.  The weird thing is that Wireshark analysis
of corresponding traffic on the server shows the first request coming in
and being turned around immediately, then we later see the retransmitted
request arrive and it, too, is promptly processed and the response goes
out immediately.  So, if I'm reading these tea leaves properly it's as
if that lost the ability to recognize the reply to that request.  [?!]

But, then, how could it be that all 3 machines seem to get into this state
at more or less the same time?  and why would unmounting and remounting
all NFS filesystems then fix it?   Aaaiii!!!


 [ Unfortunately, this problem is only occuring at the one
   customer site and can't be reproduced in-house, so unless
   I can find a way to first sanitize the logs I may not be
   permitted to publish them here...   -/   ]

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Re: NFS stops responding

2010-04-01 Thread Michael ODonnell


Oops.  I wrote:
So, if I'm reading these tea leaves properly it's as
if that lost the ability to recognize the reply to that request.  [?!]

...but meant to say, [...]it's as if that client lost the ability[...]

But, then, how could it be that all 3 machines seem to get into this
state at more or less the same time?  and why would unmounting and
remounting all NFS filesystems then fix it?   Aaaiii!!!

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Re: NFS stops responding

2010-04-01 Thread Joshua Judson Rosen
Michael ODonnell michael.odonn...@comcast.net writes:

 Oops.  I wrote:
  So, if I'm reading these tea leaves properly it's as
  if that lost the ability to recognize the reply to that request.  [?!]
 
 ...but meant to say, [...]it's as if that client lost the ability[...]
 
  But, then, how could it be that all 3 machines seem to get into this
  state at more or less the same time?  and why would unmounting and
  remounting all NFS filesystems then fix it?   Aaaiii!!!

I don't suppose things are breaking at about the same time all of the
machines renew their DHCP leases, are they?

-- 
Don't be afraid to ask (λf.((λx.xx) (λr.f(rr.

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NFS stops responding

2010-04-01 Thread Ric Werme
 
 After machine A exhibited the problem I *think* I see evidence in
 /var/log/messages that the NFS client code has decided it never got a
 response from the server (B) to some NFS request, so it retransmits the
 request and (I think) it then concludes that the retransmitted request
 also went unanswered so the operation is errored out.

So, you have a path client - switch - server (request) - file system -
server (reply) - switch - client.

And that's a simple setup.  Add automount and NIS maps and then you'll
have real fun.
 
 I gathered some Enet traffic for Wireshark anlysis on both machines thus:
 
dumpcap -i eth0 -w /tmp/`hostname`.pcap
 
 ...and viewed the client traffic with Wireshark, which (apparently)
 confirms that the client did indeed wait a while and then (apparently)
 retransmitted the NFS request.  The weird thing is that Wireshark analysis
 of corresponding traffic on the server shows the first request coming in
 and being turned around immediately, then we later see the retransmitted
 request arrive and it, too, is promptly processed and the response goes
 out immediately.  So, if I'm reading these tea leaves properly it's as
 if that lost the ability to recognize the reply to that request.  [?!]

Sounds that way.  I learned to hate network switches when I was doing
GbE performance work with NFS.  I also got a phone call at 2230 one Friday
night before a blizzard about a customer with inscrutable NFS problem,
ultimately traced to their new router they didn't think of telling me
about.  (And a panic in code that choked on malformed NFS packets which
was actually helpful in fingering the router as the corrupter.)

Oh, this problem.  So you're seeing the replies leave the server.
That's good, it means you're talking about a networking problem, not
hung file systems or such stuff.  It also means your subject line
isn't quite right.  That's okay, happens all the time, but do note
the server _is_ responding.  The packets are getting lost.

The client isn't seeing the replies?  Blame the router, blame the router!
Except - take a closer look at those replies.  In the IP protocol is
the destination address the client?  Look at the Ethernet protocol, is
the destination address the router?  If both are true, then the router
must be seeing the replies, but isn't sending them on to the client.
Where are they going?  Check statistics in the router (if you can, another
reason to hate routers).  Check the ARP table in the router (if ... hate ...).

My guess, and I'm getting really rusty on this, is perhaps some other
system is using the clients IP address (fail - all 3 clients get lost?
that's unlikely.  Check routing tables if you can (... hate ...).

Simplify, simplify, simplify.  One challenging thing about chasing
NFS problems with NFS is that oftentimes the problem is not NFS.
However, NFS is often the dominant traffic source and people are surprised
to see that telnet/ftp/ssh don't work either.

You can't get much simpler than ping - start a ping from client - server.
If you stop getting ping replies the same time you stop getting NFS replies,
then don't worry about NFS.  Fix ping.  Routing tables.  ARP tables.

 But, then, how could it be that all 3 machines seem to get into this state
 at more or less the same time?  and why would unmounting and remounting
 all NFS filesystems then fix it?   Aaaiii!!!

If it is related to something like IP address reuse, it may be that by
doing unmounts you stop the NFS traffic long enough for the clients
to send out an ARP message stating they have the IP address and hence
reclaim it.  I'm skeptical that's the problem, but it might be related.

Oh, it's still up - check out http://h30097.www3.hp.com/tipnfs.html
I wrote that ages ago to keep people from pestering me with NFS problems
that were not specific to NFS.

Oh - another thing that can do you in.  Verify that the IP
messages and NFS messages are lengths that the recipient can understand.
If one system uses jumbo frames and the other doesn't, things work just
fine for small files and small directories and then something wedges because
a message is too long.

Same for NFS messages - I saw one case where the client said it wanted
64KB I/O, the server reported it could offer 64KB I/O, but the caching
NFS system in the middle only handled up to 32 KB NFS messages.

Bring bubble wrap to pop as needed.
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