[Bug 1822370] Re: 19.04 beta openssh-client broken pipe

[Christian Ehrhardt ]

Interesting and maybe related

https://communities.vmware.com/thread/590825
https://github.com/vmware/open-vm-tools/issues/287
https://bugzilla.redhat.com/show_bug.cgi?id=1624437

The TL;DR of those is that VMWare would have issues with the AF21 QoS flag.
Does your client run in VMWare by chance?


Even if not it might be another part of the network setup between your client and server that reacts to the same change.

Please give the:
  $ ssh -o IPQoS=throughput user at host
a check (older default) if that resolves the issue.


I checked for the reason of this default change and found:
I found that the man page has this update about the defaults between cosmic/disco.
The upstream change is:
  https://anongit.mindrot.org/openssh.git/commit/?id=5ee8448ad7c306f05a9f56769f95336a8269f379

There as no follow on change to that yet as far as I can tell from git.

I'd appreciate if you could do the testing with the QoS options (which
can also be set in /etc/ssh/ssh_config if you want to make them
permanent. Maybe the world isn't ready for the new defaults yet and we
might have to hold them back a release?

** Bug watch added: github.com/vmware/open-vm-tools/issues #287
   https://github.com/vmware/open-vm-tools/issues/287

** Bug watch added: Red Hat Bugzilla #1624437
   https://bugzilla.redhat.com/show_bug.cgi?id=1624437

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https://bugs.launchpad.net/bugs/1822370

Title:
  19.04 beta openssh-client broken pipe

Status in openssh package in Ubuntu:
  Incomplete

Bug description:
  Upgrade to Xubuntu 19.04 beta from 18.10

  openssh-client

  when trying to ssh into another system, following error:

  packet_write_wait: Connection to x.x.x.x port 22: Broken pipe

  Problem is consistent on trying to connect to various systems.

  Can confirm was able to ssh prior to upgrade and can ssh into these
  systems from other systems.

  Can use putty on this system to ssh into these boxes as well.

  ProblemType: Bug
  DistroRelease: Ubuntu 19.04
  Package: openssh-client 1:7.9p1-9
  ProcVersionSignature: Ubuntu 5.0.0-8.9-generic 5.0.1
  Uname: Linux 5.0.0-8-generic x86_64
  ApportVersion: 2.20.10-0ubuntu23
  Architecture: amd64
  CurrentDesktop: XFCE
  Date: Fri Mar 29 13:36:38 2019
  InstallationDate: Installed on 2018-11-14 (135 days ago)
  InstallationMedia: Xubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 (20181017.2)
  ProcEnviron:
   LANGUAGE=en_US
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/bin/bash
  RelatedPackageVersions:
   ssh-askpass       N/A
   libpam-ssh        N/A
   keychain          N/A
   ssh-askpass-gnome N/A
  SSHClientVersion: OpenSSH_7.9p1 Ubuntu-9, OpenSSL 1.1.1b  26 Feb 2019
  SourcePackage: openssh
  UpgradeStatus: Upgraded to disco on 2019-03-29 (0 days ago)

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