Until resolved - as a landing page (I'll put that in the description as well):
The summary for the workarounds for now is:
You can configure your /etc/ssh/ssh_config permanently
Host *
IPQoS lowdelay throughput
Or per command via:
$ ssh -o IPQoS=throughput user@host
---
Per the other bugs and discussions this seems to affect any VMWare backed hosts
which I guess most commonly would be:
- VMware based computing centers
- vagrant users through the vmware backend (see [7])
- home users of VMWare player
We will have to make our decision for Ubuntu the same way Fedora did [1] for
themselve.
They decided to keep the change and be broken on VMWare for now.
I'd not like to break users right now already with the soon to be released
19.04.
How are the opinions about for now reverting [2] for 19.04 to give VMWare a
chance to fix it up in their products.
We could then get into contact with VMWare (I can do that) that this was a
close gap action for just now.
Without such a discussion I'm not sure on this as [3][4] are community
discussions but no bug reports, as well as [5] being wrong as it isn't a
open-vm-tools bug.
But I'd also make clear that we intend drop that revert in 19.10 and later.
I'm polling a few people for opinions on this change (it is easy to do,
but hard to decide).
[1]: https://bugzilla.redhat.com/show_bug.cgi?id=1624437#c8
[2]:
https://anongit.mindrot.org/openssh.git/commit/?id=5ee8448ad7c306f05a9f56769f95336a8269f379
[3]: https://communities.vmware.com/message/2803219
[4]: https://communities.vmware.com/thread/590825
[5]: https://github.com/vmware/open-vm-tools/issues/287
[6]: https://github.com/hashicorp/vagrant/issues/10730
** Changed in: openssh (Ubuntu)
Status: Incomplete => Triaged
** Changed in: openssh (Ubuntu)
Importance: Undecided => Critical
** Tags added: server-next
** Description changed:
+ New versions of openssh (as in Ubuntu 19.04) are reported to trigger a
+ connection issue:
+
+ packet_write_wait: Connection to x.x.x.x port 22: Broken pipe
+
+ In most of the cases this seems to affect VMWare based environments as
+ there is a bug in their implementation in regard to the traffic shaping
+ protocols.
+
+ Until resolved by VMWare the workarounds for now are:
+
+ Configure your client to use the old defaults permanently in
+ => /etc/ssh/ssh_config
+ Host *
+ IPQoS lowdelay throughput
+ # You might want to limit to your VMware based systems
+
+ Or per command via:
+ $ ssh IPQoS="latency throughput" user@host
+
+ Two values as one is for interactive and one for non-interactive use
+ cases.
+
+ ---- original report ----
+
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
+ 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
+ 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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https://bugs.launchpad.net/bugs/1822370
Title:
19.04 beta openssh-client broken pipe
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