* openssh connection sharing fails: "mux_client_request_session: read from master failed: Connection reset by peer"
@ 2022-01-17 16:29 Adam Dinwoodie
2022-01-17 16:52 ` [cygwin] " Jason Pyeron
0 siblings, 1 reply; 4+ messages in thread
From: Adam Dinwoodie @ 2022-01-17 16:29 UTC (permalink / raw)
To: cygwin
[-- Attachment #1: Type: text/plain, Size: 1340 bytes --]
The SSH connection sharing function in Cygwin's openssh release, using
`ssh -M` or the ssh_config.5 ControlMaster configuration, doesn't appear
to work. Setting up a master connection seems fine, but subsequent SSH
sessions that should reuse master connection instead set up their own
session, with an error stating "mux_client_request_session: read from
master failed: Connection reset by peer".
Simple testcase attached, which creates a master connection, starts a
long sleep in a second SSH session, then terminates the master
connection. When I run this on one of my Debian boxes, the script takes
about 6s to run, as tearing down the master connection terminates the
long-running command. When run from Cygwin, however, the script takes
about 64s, as the second SSH session creates an independent connection
that's unaffected by the master connection terminating.
On Debian:
```
$ time bash test.sh adam@192.168.1.131
Master running (pid=7008)
Exit request sent.
real 0m6.048s
user 0m0.083s
sys 0m0.111s
```
On Cygwin:
```
$ time bash test.sh adam@192.168.1.131
Master running (pid=5079)
mux_client_request_session: read from master failed: Connection reset by peer
Exit request sent.
finishing
real 1m4.071s
user 0m0.106s
sys 0m0.540s
```
Slightly redacted `cygcheck -srv` output also attached.
Adam
[-- Attachment #2: test.sh --]
[-- Type: application/x-sh, Size: 815 bytes --]
[-- Attachment #3: cygcheck.out --]
[-- Type: text/plain, Size: 34770 bytes --]
Cygwin Configuration Diagnostics
Current System Time: Mon Jan 17 16:20:16 2022
Windows 10 Enterprise Ver 10.0 Build 19044
Path: C:\cygwin64\home\adinwoodie\.local\bin
C:\cygwin64\usr\local\bin
C:\cygwin64\bin
C:\Program Files\Microsoft\jdk-11.0.13.8-hotspot\bin
C:\WINDOWS\system32
C:\WINDOWS
C:\WINDOWS\System32\Wbem
C:\WINDOWS\System32\WindowsPowerShell\v1.0
C:\WINDOWS\System32\OpenSSH
C:\Program Files\PuTTY
C:\Program Files\Git\cmd
C:\Users\adinwoodie\AppData\Local\Microsoft\WindowsApps
Output from C:\cygwin64\bin\id.exe
<redacted>
SysDir: C:\WINDOWS\system32
WinDir: C:\WINDOWS
USER = 'EUROPE+adinwoodie'
PWD = '/home/adinwoodie'
HOME = '/home/adinwoodie'
USERDOMAIN = 'EUROPE'
OS = 'Windows_NT'
LS_COLORS = 'rs=0:di=01;34:ln=01;36:mh=00:pi=40;33:so=01;35:do=01;35:bd=40;33;01:cd=40;33;01:or=40;31;01:mi=00:su=37;41:sg=30;43:ca=30;41:tw=30;42:ow=34;42:st=37;44:ex=01;32:*.tar=01;31:*.tgz=01;31:*.arc=01;31:*.arj=01;31:*.taz=01;31:*.lha=01;31:*.lz4=01;31:*.lzh=01;31:*.lzma=01;31:*.tlz=01;31:*.txz=01;31:*.tzo=01;31:*.t7z=01;31:*.zip=01;31:*.z=01;31:*.Z=01;31:*.dz=01;31:*.gz=01;31:*.lrz=01;31:*.lz=01;31:*.lzo=01;31:*.xz=01;31:*.zst=01;31:*.tzst=01;31:*.bz2=01;31:*.bz=01;31:*.tbz=01;31:*.tbz2=01;31:*.tz=01;31:*.deb=01;31:*.rpm=01;31:*.jar=01;31:*.war=01;31:*.ear=01;31:*.sar=01;31:*.rar=01;31:*.alz=01;31:*.ace=01;31:*.zoo=01;31:*.cpio=01;31:*.7z=01;31:*.rz=01;31:*.cab=01;31:*.jpg=01;35:*.jpeg=01;35:*.mjpg=01;35:*.mjpeg=01;35:*.gif=01;35:*.bmp=01;35:*.pbm=01;35:*.pgm=01;35:*.ppm=01;35:*.tga=01;35:*.xbm=01;35:*.xpm=01;35:*.tif=01;35:*.tiff=01;35:*.png=01;35:*.svg=01;35:*.svgz=01;35:*.mng=01;35:*.pcx=01;35:*.mov=01;35:*.mpg=01;35:*.mpeg=01;35:*.m2v=01;35:*.mkv=01;35:*.webm=01;35:*.ogm=01;35:*.mp4=01;35:*.m4v=01;35:*.mp4v=01;35:*.vob=01;35:*.qt=01;35:*.nuv=01;35:*.wmv=01;35:*.asf=01;35:*.rm=01;35:*.rmvb=01;35:*.flc=01;35:*.avi=01;35:*.fli=01;35:*.flv=01;35:*.gl=01;35:*.dl=01;35:*.xcf=01;35:*.xwd=01;35:*.yuv=01;35:*.cgm=01;35:*.emf=01;35:*.ogv=01;35:*.ogx=01;35:*.aac=00;36:*.au=00;36:*.flac=00;36:*.m4a=00;36:*.mid=00;36:*.midi=00;36:*.mka=00;36:*.mp3=00;36:*.mpc=00;36:*.ogg=00;36:*.ra=00;36:*.wav=00;36:*.oga=00;36:*.opus=00;36:*.spx=00;36:*.xspf=00;36:'
COMMONPROGRAMFILES = 'C:\Program Files\Common Files'
PROCESSOR_LEVEL = '6'
PSModulePath = 'C:\Program Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules;C:\Program Files (x86)\Microsoft Azure Information Protection\Powershell'
CommonProgramW6432 = 'C:\Program Files\Common Files'
CommonProgramFiles(x86) = 'C:\Program Files (x86)\Common Files'
LANG = 'en_GB.UTF-8'
TZ = 'Europe/London'
HOSTNAME = 'pc5819'
PUBLIC = 'C:\Users\Public'
OLDPWD = '/home/adinwoodie'
EDITOR = 'vim'
UATDATA = <redacted>
USERNAME = 'adinwoodie'
JAVA_HOME = 'C:\Program Files\Microsoft\jdk-11.0.13.8-hotspot\'
LOGONSERVER = '\\PC5819'
PROCESSOR_ARCHITECTURE = 'AMD64'
SSH_AUTH_SOCK = '/tmp/ssh-AdTgGvfdIdaL/agent.4601'
LOCALAPPDATA = 'C:\Users\adinwoodie\AppData\Local'
COMPUTERNAME = 'PC5819'
FPS_BROWSER_APP_PROFILE_STRING = 'Internet Explorer'
!:: = '::\'
SYSTEMDRIVE = 'C:'
USERPROFILE = 'C:\Users\adinwoodie'
PATHEXT = '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC'
SYSTEMROOT = 'C:\WINDOWS'
USERDOMAIN_ROAMINGPROFILE = 'EUROPE'
OneDriveCommercial = <redacted>
PROCESSOR_IDENTIFIER = 'Intel64 Family 6 Model 158 Stepping 9, GenuineIntel'
OneDriveConsumer = 'C:\Users\adinwoodie\OneDrive'
TMP = '/tmp'
LC_CTYPE = 'en_GB.UTF-8'
SSH_AGENT_PID = '4604'
TERM_PROGRAM = 'mintty'
TERM_PROGRAM_VERSION = '3.5.2'
OneDrive = <redacted>
PROCESSOR_REVISION = '9e09'
FPS_BROWSER_USER_PROFILE_STRING = 'Default'
PROFILEREAD = 'true'
USERDNSDOMAIN = <redacted>
NUMBER_OF_PROCESSORS = '8'
ProgramW6432 = 'C:\Program Files'
COMSPEC = 'C:\WINDOWS\system32\cmd.exe'
VISUAL = 'vim'
APPDATA = 'C:\Users\adinwoodie\AppData\Roaming'
SHELL = '/bin/bash'
TERM = 'xterm'
WINDIR = 'C:\WINDOWS'
ProgramData = 'C:\ProgramData'
SHLVL = '1'
MINTTY_SHORTCUT = '/cygdrive/c/Users/adinwoodie/AppData/Roaming/Microsoft/Internet Explorer/Quick Launch/User Pinned/TaskBar/Cygwin64 Terminal.lnk'
PRINTER = 'Microsoft Print to PDF'
PROGRAMFILES = 'C:\Program Files'
ALLUSERSPROFILE = 'C:\ProgramData'
TEMP = '/tmp'
DriverData = 'C:\Windows\System32\Drivers\DriverData'
SESSIONNAME = 'Console'
ProgramFiles(x86) = 'C:\Program Files (x86)'
PS1 = '\n\[\033[0;32m\]✔ \[\033[0;37m\]\u@\h \[\033[0;37m\]\w\[\033[0;0m\]\[^[]0;\h:\w\a\]\n\[\033[0;37m\]\D{%a %e %b %R}\[\033[0;0m\] $ '
HOMEDRIVE = 'C:'
INFOPATH = '/usr/local/info:/usr/share/info:/usr/info'
HOMEPATH = '\Users\adinwoodie'
ORIGINAL_PATH = '/cygdrive/c/Program Files/Microsoft/jdk-11.0.13.8-hotspot/bin:/cygdrive/c/WINDOWS/system32:/cygdrive/c/WINDOWS:/cygdrive/c/WINDOWS/System32/Wbem:/cygdrive/c/WINDOWS/System32/WindowsPowerShell/v1.0:/cygdrive/c/WINDOWS/System32/OpenSSH:/cygdrive/c/Program Files/PuTTY:/cygdrive/c/Program Files/Git/cmd:/cygdrive/c/Users/adinwoodie/AppData/Local/Microsoft/WindowsApps'
EXECIGNORE = '*.dll'
_ = '/usr/bin/cygcheck'
HKEY_CURRENT_USER\SOFTWARE\Cygwin
HKEY_CURRENT_USER\SOFTWARE\Cygwin\Installations
(default) = '\??\C:\cygwin64'
eda34ea3250cc028 = '\??\C:\Users\adinwoodie\AppData\Local\wsltty'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\Installations
(default) = '\??\C:\cygwin64'
9d8973b6320a2a89 = '\??\C:\Program Files\SSHFS-Win'
HKEY_LOCAL_MACHINE\SOFTWARE\Cygwin\setup
(default) = 'C:\cygwin64'
obcaseinsensitive set to 1
Cygwin installations found in the registry:
System: Key: e022582115c10879 Path: C:\cygwin64
System: Key: 9d8973b6320a2a89 Path: C:\Program Files\SSHFS-Win
User: Key: e022582115c10879 Path: C:\cygwin64
User: Key: eda34ea3250cc028 Path: C:\Users\adinwoodie\AppData\Local\wsltty
c: hd NTFS 486772Mb 48% CP CS UN PA FC QU Windows
C:\cygwin64 / system binary,auto
C:\cygwin64\bin /usr/bin system binary,auto
C:\cygwin64\lib /usr/lib system binary,auto
cygdrive prefix /cygdrive user binary,posix=0,auto
Found: C:\cygwin64\bin\awk
-> C:\cygwin64\bin\gawk.exe
Found: C:\cygwin64\bin\bash.exe
Found: C:\WINDOWS\system32\bash.exe
Warning: C:\cygwin64\bin\bash.exe hides C:\WINDOWS\system32\bash.exe
Found: C:\cygwin64\bin\cat.exe
Found: C:\WINDOWS\system32\certutil.exe
Not Found: clinfo
Found: C:\WINDOWS\system32\comp.exe
Found: C:\WINDOWS\system32\convert.exe
Found: C:\cygwin64\bin\cp.exe
Found: C:\cygwin64\bin\cpp.exe
Found: C:\cygwin64\bin\crontab.exe
Found: C:\cygwin64\bin\curl.exe
Found: C:\WINDOWS\system32\curl.exe
Warning: C:\cygwin64\bin\curl.exe hides C:\WINDOWS\system32\curl.exe
Found: C:\cygwin64\bin\expand.exe
Found: C:\WINDOWS\system32\expand.exe
Warning: C:\cygwin64\bin\expand.exe hides C:\WINDOWS\system32\expand.exe
Found: C:\cygwin64\bin\find.exe
Found: C:\WINDOWS\system32\find.exe
Warning: C:\cygwin64\bin\find.exe hides C:\WINDOWS\system32\find.exe
Found: C:\WINDOWS\system32\ftp.exe
Found: C:\cygwin64\bin\gcc.exe
Not Found: gdb
Found: C:\cygwin64\bin\grep.exe
Found: C:\cygwin64\bin\hostname.exe
Found: C:\WINDOWS\system32\hostname.exe
Warning: C:\cygwin64\bin\hostname.exe hides C:\WINDOWS\system32\hostname.exe
Found: C:\cygwin64\bin\kill.exe
Found: C:\Program Files\Microsoft\jdk-11.0.13.8-hotspot\bin\klist.exe
Found: C:\WINDOWS\system32\klist.exe
Warning: C:\Program Files\Microsoft\jdk-11.0.13.8-hotspot\bin\klist.exe hides C:\WINDOWS\system32\klist.exe
Found: C:\cygwin64\bin\ld.exe
Found: C:\cygwin64\bin\ls.exe
Found: C:\cygwin64\bin\make.exe
Found: C:\cygwin64\bin\mv.exe
Found: C:\WINDOWS\system32\nslookup.exe
Found: C:\cygwin64\bin\patch.exe
Found: C:\cygwin64\bin\perl.exe
Found: C:\WINDOWS\system32\replace.exe
Found: C:\cygwin64\bin\rm.exe
Found: C:\cygwin64\bin\sed.exe
Found: C:\cygwin64\bin\sh.exe
Found: C:\WINDOWS\system32\shutdown.exe
Found: C:\cygwin64\bin\sort.exe
Found: C:\WINDOWS\system32\sort.exe
Warning: C:\cygwin64\bin\sort.exe hides C:\WINDOWS\system32\sort.exe
Found: C:\cygwin64\bin\ssh.exe
Found: C:\WINDOWS\System32\OpenSSH\ssh.exe
Warning: C:\cygwin64\bin\ssh.exe hides C:\WINDOWS\System32\OpenSSH\ssh.exe
Found: C:\cygwin64\bin\tar.exe
Found: C:\WINDOWS\system32\tar.exe
Warning: C:\cygwin64\bin\tar.exe hides C:\WINDOWS\system32\tar.exe
Found: C:\cygwin64\bin\test.exe
Found: C:\cygwin64\bin\timeout.exe
Found: C:\WINDOWS\system32\timeout.exe
Warning: C:\cygwin64\bin\timeout.exe hides C:\WINDOWS\system32\timeout.exe
Found: C:\cygwin64\bin\vi.exe
Found: C:\cygwin64\bin\vim.exe
Found: C:\cygwin64\bin\whoami.exe
Found: C:\WINDOWS\system32\whoami.exe
Warning: C:\cygwin64\bin\whoami.exe hides C:\WINDOWS\system32\whoami.exe
39k 2016/09/19 C:\cygwin64\bin\cygargp-0.dll - os=4.0 img=0.0 sys=5.2
"cygargp-0.dll" v0.0 ts=2016-09-19 02:13
65k 2019/05/02 C:\cygwin64\bin\cygassuan-0.dll - os=4.0 img=0.0 sys=5.2
"cygassuan-0.dll" v0.0 ts=2019-05-02 12:33
29k 2021/08/22 C:\cygwin64\bin\cygatomic-1.dll - os=4.0 img=0.0 sys=5.2
"cygatomic-1.dll" v0.0 ts=2021-08-22 09:57
19k 2018/12/20 C:\cygwin64\bin\cygattr-1.dll - os=4.0 img=0.0 sys=5.2
"cygattr-1.dll" v0.0 ts=2018-12-20 09:48
254k 2020/03/31 C:\cygwin64\bin\cygblkid-1.dll - os=4.0 img=0.0 sys=5.2
"cygblkid-1.dll" v0.0 ts=2020-03-28 06:22
132k 2021/04/20 C:\cygwin64\bin\cygbrotlicommon-1.dll - os=4.0 img=1.0 sys=5.2
"cygbrotlicommon-1.dll" v0.0 ts=2021-04-20 11:42
46k 2021/04/20 C:\cygwin64\bin\cygbrotlidec-1.dll - os=4.0 img=1.0 sys=5.2
"cygbrotlidec-1.dll" v0.0 ts=2021-04-20 11:42
66k 2019/07/21 C:\cygwin64\bin\cygbz2-1.dll - os=4.0 img=0.0 sys=5.2
"cygbz2-1.dll" v0.0 ts=2019-07-22 00:05
71k 2018/03/16 C:\cygwin64\bin\cygcares-2.dll - os=4.0 img=0.0 sys=5.2
"cygcares-2.dll" v0.0 ts=2018-03-16 02:33
13k 2019/01/02 C:\cygwin64\bin\cygcom_err-2.dll - os=4.0 img=0.0 sys=5.2
"cygcom_err-2.dll" v0.0 ts=2019-01-02 02:39
193k 2021/05/20 C:\cygwin64\bin\cygcrypt-2.dll - os=4.0 img=0.0 sys=5.2
"cygcrypt-2.dll" v0.0 ts=2021-05-20 09:38
2489k 2021/11/28 C:\cygwin64\bin\cygcrypto-1.1.dll - os=4.0 img=0.0 sys=5.2
"cygcrypto-1.1.dll" v0.0 ts=2021-11-28 16:59
649k 2022/01/08 C:\cygwin64\bin\cygcurl-4.dll - os=4.0 img=0.0 sys=5.2
"cygcurl-4.dll" v0.0 ts=2022-01-08 16:53
1552k 2017/09/28 C:\cygwin64\bin\cygdb-5.3.dll - os=4.0 img=0.0 sys=5.2
"cygdb-5.3.dll" v0.0 ts=2017-09-28 20:05
119k 2017/09/28 C:\cygwin64\bin\cygdb_cxx-5.3.dll - os=4.0 img=0.0 sys=5.2
"cygdb_cxx-5.3.dll" v0.0 ts=2017-09-28 20:06
569k 2017/09/28 C:\cygwin64\bin\cygdb_sql-5.3.dll - os=4.0 img=0.0 sys=5.2
"cygdb_sql-5.3.dll" v0.0 ts=2017-09-28 20:06
154k 2013/10/20 C:\cygwin64\bin\cygedit-0.dll - os=4.0 img=0.0 sys=5.2
"cygedit-0.dll" v0.0 ts=2013-10-20 21:56
169k 2021/07/23 C:\cygwin64\bin\cygexpat-1.dll - os=4.0 img=0.0 sys=5.2
"cygexpat-1.dll" v0.0 ts=2021-07-23 20:08
353k 2020/03/31 C:\cygwin64\bin\cygfdisk-1.dll - os=4.0 img=0.0 sys=5.2
"cygfdisk-1.dll" v0.0 ts=2020-03-28 06:23
27k 2015/11/17 C:\cygwin64\bin\cygffi-6.dll - os=4.0 img=0.0 sys=5.2
"cygffi-6.dll" v0.0 ts=2015-11-17 22:14
209k 2021/11/17 C:\cygwin64\bin\cygfido2-1.dll - os=4.0 img=1.9 sys=5.2
"cygfido2-1.dll" v0.0 ts=2021-11-17 14:08
56k 2019/07/28 C:\cygwin64\bin\cygformw-10.dll - os=4.0 img=0.0 sys=5.2
"cygformw-10.dll" v0.0 ts=2019-07-28 17:33
146k 2021/10/13 C:\cygwin64\bin\cyggc-1.dll - os=4.0 img=0.0 sys=5.2
"cyggc-1.dll" v0.0 ts=2021-10-13 06:55
74k 2021/08/22 C:\cygwin64\bin\cyggcc_s-seh-1.dll - os=4.0 img=0.0 sys=5.2
"cyggcc_s-seh-1.dll" v0.0 ts=2021-08-22 09:49
1099k 2018/03/19 C:\cygwin64\bin\cyggcrypt-20.dll - os=4.0 img=0.0 sys=5.2
"cyggcrypt-20.dll" v0.0 ts=2018-03-19 20:09
49k 2019/07/10 C:\cygwin64\bin\cyggdbm-6.dll - os=4.0 img=0.0 sys=5.2
"cyggdbm-6.dll" v0.0 ts=2019-07-10 14:53
13k 2019/07/10 C:\cygwin64\bin\cyggdbm_compat-4.dll - os=4.0 img=0.0 sys=5.2
"cyggdbm_compat-4.dll" v0.0 ts=2019-07-10 14:53
582k 2021/08/21 C:\cygwin64\bin\cyggmp-10.dll - os=4.0 img=0.0 sys=5.2
"cyggmp-10.dll" v0.0 ts=2021-08-21 19:11
1472k 2019/07/29 C:\cygwin64\bin\cyggnutls-30.dll - os=4.0 img=0.0 sys=5.2
"cyggnutls-30.dll" v0.0 ts=2019-07-29 03:55
217k 2021/08/22 C:\cygwin64\bin\cyggomp-1.dll - os=4.0 img=0.0 sys=5.2
"cyggomp-1.dll" v0.0 ts=2021-08-22 09:53
116k 2020/02/16 C:\cygwin64\bin\cyggpg-error-0.dll - os=4.0 img=0.0 sys=5.2
"cyggpg-error-0.dll" v0.0 ts=2020-02-16 21:28
249k 2017/06/28 C:\cygwin64\bin\cyggpgme-11.dll - os=4.0 img=0.0 sys=5.2
"cyggpgme-11.dll" v0.0 ts=2017-06-29 00:10
100k 2017/05/03 C:\cygwin64\bin\cyggsasl-7.dll - os=4.0 img=0.0 sys=5.2
"cyggsasl-7.dll" v0.0 ts=2017-05-03 09:33
274k 2018/03/16 C:\cygwin64\bin\cyggssapi_krb5-2.dll - os=4.0 img=0.0 sys=5.2
"cyggssapi_krb5-2.dll" v0.0 ts=2018-03-16 03:38
1070k 2020/03/13 C:\cygwin64\bin\cygguile-2.2-1.dll - os=4.0 img=0.0 sys=5.2
"cygguile-2.2-1.dll" v0.0 ts=2020-03-08 21:47
36k 2021/08/31 C:\cygwin64\bin\cyghistory7.dll - os=4.0 img=0.0 sys=5.2
"cyghistory7.dll" v0.0 ts=2021-08-31 07:54
168k 2019/02/19 C:\cygwin64\bin\cyghogweed-4.dll - os=4.0 img=0.0 sys=5.2
"cyghogweed-4.dll" v0.0 ts=2019-02-19 06:59
1007k 2020/07/13 C:\cygwin64\bin\cygiconv-2.dll - os=4.0 img=0.0 sys=5.2
"cygiconv-2.dll" v0.0 ts=2020-07-13 13:57
197k 2017/05/02 C:\cygwin64\bin\cygidn-11.dll - os=4.0 img=0.0 sys=5.2
"cygidn-11.dll" v0.0 ts=2017-05-02 01:18
125k 2021/07/25 C:\cygwin64\bin\cygidn2-0.dll - os=4.0 img=0.0 sys=5.2
"cygidn2-0.dll" v0.0 ts=2021-07-25 08:25
42k 2021/07/29 C:\cygwin64\bin\cygintl-8.dll - os=4.0 img=0.0 sys=5.2
"cygintl-8.dll" v0.0 ts=2021-07-29 03:40
1695k 2021/08/21 C:\cygwin64\bin\cygisl-23.dll - os=4.0 img=0.0 sys=5.2
"cygisl-23.dll" v0.0 ts=2021-08-21 18:50
192k 2018/03/16 C:\cygwin64\bin\cygk5crypto-3.dll - os=4.0 img=0.0 sys=5.2
"cygk5crypto-3.dll" v0.0 ts=2018-03-16 03:37
754k 2018/03/16 C:\cygwin64\bin\cygkrb5-3.dll - os=4.0 img=0.0 sys=5.2
"cygkrb5-3.dll" v0.0 ts=2018-03-16 03:37
37k 2018/03/16 C:\cygwin64\bin\cygkrb5support-0.dll - os=4.0 img=0.0 sys=5.2
"cygkrb5support-0.dll" v0.0 ts=2018-03-16 03:36
48k 2021/06/12 C:\cygwin64\bin\cyglber-2-4-2.dll - os=4.0 img=0.0 sys=5.2
"cyglber-2-4-2.dll" v0.0 ts=2021-06-12 19:04
49k 2021/11/01 C:\cygwin64\bin\cyglber-2-5-0.dll - os=4.0 img=0.0 sys=5.2
"cyglber-2-5-0.dll" v0.0 ts=2021-11-01 17:44
266k 2021/06/12 C:\cygwin64\bin\cygldap-2-4-2.dll - os=4.0 img=0.0 sys=5.2
"cygldap-2-4-2.dll" v0.0 ts=2021-06-12 19:05
323k 2021/11/01 C:\cygwin64\bin\cygldap-2-5-0.dll - os=4.0 img=0.0 sys=5.2
"cygldap-2-5-0.dll" v0.0 ts=2021-11-01 17:44
283k 2021/06/12 C:\cygwin64\bin\cygldap_r-2-4-2.dll - os=4.0 img=0.0 sys=5.2
"cygldap_r-2-4-2.dll" v0.0 ts=2021-06-12 19:07
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Cygwin DLL version info:
DLL version: 3.3.3
DLL epoch: 19
DLL old termios: 5
DLL malloc env: 28
Cygwin conv: 181
API major: 0
API minor: 341
Shared data: 5
DLL identifier: cygwin1
Mount registry: 3
Cygwin registry name: Cygwin
Installations name: Installations
Cygdrive default prefix:
Build date:
Shared id: cygwin1S5
No Cygwin services found.
Cygwin Package Information
Last downloaded files to: C:\Users\adinwoodie\Downloads
Last downloaded files from: https://www.mirrorservice.org/sites/sourceware.org/pub/cygwin/
Package Version Status
_autorebase 001091-1 OK
alternatives 1.3.30c-10 OK
aria2 1.32.0-1 OK
autoconf 15-1 OK
autoconf2.1 2.13-12 OK
autoconf2.5 2.69-5 OK
autoconf2.7 2.71-2 OK
automake 11-1 OK
automake1.10 1.10.3-3 OK
automake1.11 1.11.6-3 OK
automake1.12 1.12.6-3 OK
automake1.13 1.13.4-2 OK
automake1.14 1.14.1-3 OK
automake1.15 1.15.1-2 OK
automake1.16 1.16.5-1 OK
automake1.9 1.9.6-11 OK
base-cygwin 3.8-1 OK
base-files 4.3-3 OK
bash 4.4.12-3 OK
bash-completion 2.7-1 OK
binutils 2.37-2 OK
bzip2 1.0.8-1 OK
ca-certificates 2021.2.52-1 OK
coreutils 8.26-2 OK
cron 4.1-65 OK
crypto-policies 20190218-1 OK
csih 0.9.11-1 OK
curl 7.81.0-1 OK
cygcheck-dep 3.0-2 OK
cygrunsrv 1.62-1 OK
cygutils 1.4.16-7 OK
cygwin 3.3.3-1 OK
cygwin-devel 3.3.3-1 OK
dash 0.5.11.5-1 OK
diffutils 3.8-1 OK
dos2unix 7.4.2-1 OK
editrights 1.03-1 OK
file 5.39-1 OK
findutils 4.8.0-1 OK
gawk 5.1.1-1 OK
gcc-core 11.2.0-1 OK
getent 2.18.90-4 OK
git 2.34.1-1 OK
Missing file: /usr/bin/gpgsplit.exe from package gnupg
gnupg 1.4.23-1 Incomplete
grep 3.7-2 OK
groff 1.22.4-1 OK
gzip 1.11-1 OK
hostname 3.13-1 OK
info 6.8-2 OK
ipc-utils 1.0-2 OK
less 590-1 OK
libargp 20110921-3 OK
libassuan0 2.5.3-1 OK
libatomic1 11.2.0-1 OK
libattr1 2.4.48-2 OK
libblkid1 2.33.1-2 OK
libbrotlicommon1 1.0.9-2 OK
libbrotlidec1 1.0.9-2 OK
libbz2_1 1.0.8-1 OK
libcares2 1.14.0-1 OK
libcom_err2 1.44.5-1 OK
libcrypt-devel 4.4.20-1 OK
libcrypt2 4.4.20-1 OK
libcurl4 7.81.0-1 OK
libdb5.3 5.3.28-2 OK
libedit0 20130712-1 OK
libexpat1 2.4.1-1 OK
libfdisk1 2.33.1-2 OK
libffi6 3.2.1-2 OK
libfido2 1.9.0-2 OK
libgc1 8.0.6-1 OK
libgcc1 11.2.0-1 OK
libgcrypt20 1.8.2-1 OK
libgdbm6 1.18.1-1 OK
libgdbm_compat4 1.18.1-1 OK
libgmp10 6.2.1-2 OK
libgnutls30 3.6.9-1 OK
libgomp1 11.2.0-1 OK
libgpg-error0 1.37-1 OK
libgpgme11 1.9.0-1 OK
libgsasl-common 1.8.0-4 OK
libgsasl7 1.8.0-4 OK
libgssapi_krb5_2 1.15.2-2 OK
libguile2.2_1 2.2.7-1 OK
libhogweed4 3.4.1-1 OK
libiconv2 1.16-2 OK
libidn11 1.33-1 OK
libidn2_0 2.3.2-1 OK
libintl8 0.21-1 OK
libisl23 0.24-2 OK
libk5crypto3 1.15.2-2 OK
libkrb5_3 1.15.2-2 OK
libkrb5support0 1.15.2-2 OK
libltdl7 2.4.6-8 OK
liblz4_1 1.7.5-1 OK
liblzma5 5.2.4-1 OK
libmetalink3 0.1.3-1 OK
libmpc3 1.2.1-2 OK
libmpfr6 4.1.0-2 OK
libncursesw10 6.1-1.20190727 OK
libnettle6 3.4.1-1 OK
libnghttp2_14 1.46.0-1 OK
libntlm0 1.4-1 OK
libopenldap2_4_2 2.4.59-1 OK
libopenldap2_5_0 2.5.9-1 OK
libp11-kit0 0.23.20-1 OK
libpcre1 8.45-1 OK
libpcre2_8_0 10.39-1 OK
libpipeline1 1.5.3-1 OK
libpkgconf3 1.6.3-1 OK
libpopt-common 1.18-1 OK
libpopt0 1.18-1 OK
libprocps8 3.3.17-1 OK
libpsl5 0.21.1-1 OK
libquadmath0 11.2.0-1 OK
libreadline7 8.1-2 OK
libsasl2_3 2.1.27-1 OK
libsigsegv2 2.10-2 OK
libsmartcols1 2.33.1-2 OK
libsodium-common 1.0.18-1 OK
libsodium23 1.0.18-1 OK
libsqlite3_0 3.34.0-1 OK
libssh2_1 1.10.0-1 OK
libssl1.1 1.1.1l-2 OK
libstdc++6 11.2.0-1 OK
libtasn1_6 4.14-1 OK
libunistring2 0.9.10-1 OK
libusb0 1.2.6.0-2 OK
libuuid1 2.33.1-2 OK
libxml2 2.9.12-2 OK
libxxhash0 0.8.0-1 OK
libzstd1 1.5.1-1 OK
lndir 1.0.3-1 OK
login 1.13-1 OK
m4 1.4.19-1 OK
make 4.3-1 OK
man-db 2.9.4-2.1 OK
mariadb-common 3.0.9-1 OK
mintty 3.5.2-1 OK
moreutils 0.66-1 OK
mysql-common 10.3.14-1 OK
ncurses 6.1-1.20190727 OK
openssh 8.8p1-1 OK
openssl 1.1.1l-2 OK
p11-kit 0.23.20-1 OK
p11-kit-trust 0.23.20-1 OK
patch 2.7.4-1 OK
Missing file: /usr/bin/shasum from package perl
perl 5.32.1-2 Incomplete
perl-Class-Inspector 1.36-3 OK
perl-Error 0.17029-2 OK
perl-File-ShareDir 1.118-2 OK
perl-IO-Tty 1.16-2 OK
perl-IPC-Run 20200505.0-2 OK
perl-Scalar-List-Utils 1.60-1 OK
perl-TermReadKey 2.38-3 OK
perl-Test-Harness 3.42-3 OK
perl-TimeDate 2.33-2 OK
perl-Unicode-Normalize 1.26-3 OK
perl_autorebase 5.32.1-2 OK
perl_base 5.32.1-2 OK
pkg-config 1.6.3-1 OK
Missing directory: /usr/share/pkgconfig/ from package pkgconf
pkgconf 1.6.3-1 Incomplete
procps-ng 3.3.17-1 OK
publicsuffix-list-dafsa 20211207-1 OK
pv 1.6.20-1 OK
python38 3.8.12-1 OK
python38-pip 21.3.1-2 OK
python38-setuptools 59.5.0-1 OK
python39 3.9.9-1 OK
python39-devel 3.9.9-1 OK
python39-pip 21.3.1-2 OK
python39-setuptools 59.5.0-1 OK
python39-wheel 0.37.1-1 OK
rebase 4.5.0-1 OK
rsync 3.2.3+20200903+git9f9240b-4 OK
run 1.3.4-2 OK
sed 4.8-1 OK
tar 1.34-1 OK
terminfo 6.1-1.20190727 OK
terminfo-extra 6.1-1.20190727 OK
texinfo 6.8-2 OK
the_silver_searcher 2.2.0-1 OK
tzcode 2021e-1 OK
tzdata 2021e-1 OK
unzip 6.0-17 OK
util-linux 2.33.1-2 OK
vim 8.2.3755-1 OK
vim-common 8.2.3755-1 OK
vim-minimal 8.2.3755-1 OK
w32api-headers 9.0.0-1 OK
w32api-runtime 9.0.0-1 OK
wget 1.21.2-1 OK
which 2.20-2 OK
windows-default-manifest 6.4-1 OK
xxd 8.2.3755-1 OK
xz 5.2.4-1 OK
zlib0 1.2.11-1 OK
zstd 1.5.1-1 OK
Use -h to see help about each section
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [cygwin] openssh connection sharing fails: "mux_client_request_session: read from master failed: Connection reset by peer"
2022-01-17 16:29 openssh connection sharing fails: "mux_client_request_session: read from master failed: Connection reset by peer" Adam Dinwoodie
@ 2022-01-17 16:52 ` Jason Pyeron
2022-01-17 16:59 ` Jason Pyeron
2022-01-17 20:36 ` Adam Dinwoodie
0 siblings, 2 replies; 4+ messages in thread
From: Jason Pyeron @ 2022-01-17 16:52 UTC (permalink / raw)
To: cygwin
> -----Original Message-----
> From: Adam Dinwoodie
> Sent: Monday, January 17, 2022 11:30 AM
>
> The SSH connection sharing function in Cygwin's openssh release, using
> `ssh -M` or the ssh_config.5 ControlMaster configuration, doesn't appear
> to work. Setting up a master connection seems fine, but subsequent SSH
Sadly, it is a known issue.
https://stackoverflow.com/questions/20959792/is-ssh-controlmaster-with-cygwin-on-windows-actually-possible/21439862#21439862
We would be happy to thrown some $ or beer at it.
> sessions that should reuse master connection instead set up their own
> session, with an error stating "mux_client_request_session: read from
> master failed: Connection reset by peer".
>
> Simple testcase attached, which creates a master connection, starts a
> long sleep in a second SSH session, then terminates the master
> connection. When I run this on one of my Debian boxes, the script takes
> about 6s to run, as tearing down the master connection terminates the
> long-running command. When run from Cygwin, however, the script takes
> about 64s, as the second SSH session creates an independent connection
> that's unaffected by the master connection terminating.
>
> On Debian:
>
> ```
> $ time bash test.sh adam@192.168.1.131
> Master running (pid=7008)
>
> Exit request sent.
>
> real 0m6.048s
> user 0m0.083s
> sys 0m0.111s
> ```
>
> On Cygwin:
>
> ```
> $ time bash test.sh adam@192.168.1.131
> Master running (pid=5079)
> mux_client_request_session: read from master failed: Connection reset by peer
>
> Exit request sent.
> finishing
>
> real 1m4.071s
> user 0m0.106s
> sys 0m0.540s
> ```
>
> Slightly redacted `cygcheck -srv` output also attached.
>
> Adam
--
Jason Pyeron | Architect
PD Inc | Certified SBA 8(a)
10 w 24th St | Certified SBA HUBZone
Baltimore, MD | CAGE Code: 1WVR6
.mil: jason.j.pyeron.ctr@mail.mil
.com: jpyeron@pdinc.us
tel : 202-741-9397
^ permalink raw reply [flat|nested] 4+ messages in thread
* RE: [cygwin] openssh connection sharing fails: "mux_client_request_session: read from master failed: Connection reset by peer"
2022-01-17 16:52 ` [cygwin] " Jason Pyeron
@ 2022-01-17 16:59 ` Jason Pyeron
2022-01-17 20:36 ` Adam Dinwoodie
1 sibling, 0 replies; 4+ messages in thread
From: Jason Pyeron @ 2022-01-17 16:59 UTC (permalink / raw)
To: cygwin
> -----Original Message-----
> From: Jason Pyeron
> Sent: Monday, January 17, 2022 11:52 AM
>
> > -----Original Message-----
> > From: Adam Dinwoodie
> > Sent: Monday, January 17, 2022 11:30 AM
> >
> > The SSH connection sharing function in Cygwin's openssh release, using
> > `ssh -M` or the ssh_config.5 ControlMaster configuration, doesn't appear
> > to work. Setting up a master connection seems fine, but subsequent SSH
>
> Sadly, it is a known issue.
>
> https://stackoverflow.com/questions/20959792/is-ssh-controlmaster-with-cygwin-on-windows-actually-possible/21439862#21439862
>
> We would be happy to thrown some $ or beer at it.
>
I should have posted the Cygwin.com link on this: https://cygwin.com/cygwin-ug-net/highlights.html#ov-hi-sockets
And for anyone looking to start - some food for thought:
https://devblogs.microsoft.com/commandline/af_unix-comes-to-windows/
https://stackoverflow.com/questions/9475442/unix-domain-socket-vs-named-pipes
https://sourceware.org/legacy-ml/cygwin/2015-01/msg00123.html
-Jason
--
Jason Pyeron | Architect
PD Inc | Certified SBA 8(a)
10 w 24th St | Certified SBA HUBZone
Baltimore, MD | CAGE Code: 1WVR6
.mil: jason.j.pyeron.ctr@mail.mil
.com: jpyeron@pdinc.us
tel : 202-741-9397
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [cygwin] openssh connection sharing fails: "mux_client_request_session: read from master failed: Connection reset by peer"
2022-01-17 16:52 ` [cygwin] " Jason Pyeron
2022-01-17 16:59 ` Jason Pyeron
@ 2022-01-17 20:36 ` Adam Dinwoodie
1 sibling, 0 replies; 4+ messages in thread
From: Adam Dinwoodie @ 2022-01-17 20:36 UTC (permalink / raw)
To: cygwin
On Mon, Jan 17, 2022 at 11:52:01AM -0500, Jason Pyeron wrote:
> > -----Original Message-----
> > From: Adam Dinwoodie
> > Sent: Monday, January 17, 2022 11:30 AM
> >
> > The SSH connection sharing function in Cygwin's openssh release, using
> > `ssh -M` or the ssh_config.5 ControlMaster configuration, doesn't appear
> > to work. Setting up a master connection seems fine, but subsequent SSH
>
> Sadly, it is a known issue.
>
> https://stackoverflow.com/questions/20959792/is-ssh-controlmaster-with-cygwin-on-windows-actually-possible/21439862#21439862
Ah, I had found a bunch of discussions on sites like Stack Overflow, but
I don't like to assume that problems discussed there are necessarily
known to the relevant Cygwin folk unless I've found them discussed on
the Cygin mailing lists. In this case, it clearly has been, but I
didn't expect to have to search as far back as 2015 to find those
discussions!
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2022-01-17 20:36 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-01-17 16:29 openssh connection sharing fails: "mux_client_request_session: read from master failed: Connection reset by peer" Adam Dinwoodie
2022-01-17 16:52 ` [cygwin] " Jason Pyeron
2022-01-17 16:59 ` Jason Pyeron
2022-01-17 20:36 ` Adam Dinwoodie
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