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To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>,
        "Matthias AT gmx DOT at"
 <matthias DOT meyer AT gmx DOT at>
Subject: Re: Cygwin 3.4.9 - how to install ssh-keygen
Thread-Topic: Cygwin 3.4.9 - how to install ssh-keygen
Thread-Index: AQHaH7pK0R17NrRRAEOZTzAc6wp2ibCLX8wugAF4QYCAACQMAIAA0BeAgAPuRs0=
Date: Wed, 29 Nov 2023 21:13:38 +0000
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From: Jose Isaias Cabrera via Cygwin <cygwin AT cygwin DOT com>
Reply-To: Jose Isaias Cabrera <jicman AT outlook DOT com>
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Sender: "Cygwin" <cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com>

On Monday, November 27, 2023 02:46 AM, Matthias--- expressed:
>
> Am Sonntag, dem 26.11.2023 um 12:21 -0700 schrieb Brian Inglis via Cygwin:
> > On 2023-11-26 10:12, Matthias--- via Cygwin wrote:
> > > Am Samstag, dem 25.11.2023 um 19:45 +0100 schrieb ASSI via Cygwin:
> > > > Matthias--- via Cygwin writes:
> > > > > Yes - That's the reason in my VM too:
> > > > >     strace ssh-keygen -A

> A/V is Antivirus? My VM is running Avira. Deactivating it
> haven't impact on ssh-keygen. I still have
> an Segmentation fault.

Pardon the high jacking of this threat, but I may have the same problem (or, at least, it's related). I can start another thread if it is desired...

I am having the same problem with ssh. So, a little history... This is a fresh Windows 11 Cygwin installation. Everything works great, except using ssh. For example, when I type,

jcabrera AT jicman ~
$ ssh jic AT web

jcabrera AT jicman ~
$

I get the prompt right away. I found out that Windows 11 comes with OpenSSH installed. I uninstalled it, rebooted, and reinstalled cygwin's openssh, and the problem is still there. I don't have any antivirus, except Microsoft's Defender, but I added two folder exclussions (c:\cygwin64 and the download folder for xmission download site). The strace of ssh is pretty long:

== beg strace ssh ==
$ strace ssh
--- Process 23800 created
--- Process 23800 loaded C:\Windows\System32\ntdll.dll at 00007ffe22410000
--- Process 23800 loaded C:\Windows\System32\kernel32.dll at 00007ffe20e20000
--- Process 23800 loaded C:\Windows\System32\KernelBase.dll at 00007ffe1f780000
--- Process 23800 loaded C:\cygwin64\bin\cygcrypto-1.1.dll at 00000003f6ce0000
--- Process 23800 loaded C:\cygwin64\bin\cygwin1.dll at 00007ffd8efa0000
--- Process 23800 loaded C:\cygwin64\bin\cyggssapi_krb5-2.dll at 00000003f40d0000
--- Process 23800 loaded C:\cygwin64\bin\cygz.dll at 00000003ee230000
--- Process 23800 loaded C:\cygwin64\bin\cyggcc_s-seh-1.dll at 00000003f4c30000
--- Process 23800 loaded C:\cygwin64\bin\cygk5crypto-3.dll at 00000003f0f00000
--- Process 23800 loaded C:\cygwin64\bin\cygkrb5-3.dll at 00000003f0e30000
--- Process 23800 loaded C:\cygwin64\bin\cygkrb5support-0.dll at 00000003f0e10000
--- Process 23800 loaded C:\cygwin64\bin\cygcom_err-2.dll at 00000003f7240000
--- Process 23800 loaded C:\cygwin64\bin\cygintl-8.dll at 00000003f12e0000
--- Process 23800 loaded C:\cygwin64\bin\cygiconv-2.dll at 00000003f3170000
    1       1 [main] ssh (23800) **********************************************
   94      95 [main] ssh (23800) Program name: C:\cygwin64\bin\ssh.exe (windows pid 23800)
   59     154 [main] ssh (23800) OS version:   Windows NT-10.0
   78     232 [main] ssh (23800) **********************************************
--- Process 23800 loaded C:\Windows\System32\advapi32.dll at 00007ffe202b0000
--- Process 23800 loaded C:\Windows\System32\msvcrt.dll at 00007ffe20d40000
--- Process 23800 loaded C:\Windows\System32\sechost.dll at 00007ffe203a0000
--- Process 23800 loaded C:\Windows\System32\rpcrt4.dll at 00007ffe22030000
--- Process 23800 loaded C:\Windows\System32\cryptbase.dll at 00007ffe1efd0000
--- Process 23800 loaded C:\Windows\System32\bcryptprimitives.dll at 00007ffe1fc50000
 9439    9671 [main] ssh (23800) sigprocmask: 0 = sigprocmask (0, 0x0, 0x7FFD8F2793B0)
  439   10110 [main] ssh (23800) open_shared: name shared.5, shared 0x1A0000000 (wanted 0x1A0000000), h 0x118, m 0, created 0
  152   10262 [main] ssh (23800) user_heap_info::init: heap base 0xA00000000, heap top 0xA00000000, heap size 0x20000000 (536870912)
   76   10338 [main] ssh (23800) open_shared: name S-1-5-21-1074337292-3126344265-1178006881-1002.1, shared 0x1A1000000 (wanted 0x1A1000000), h 0x114, m 1, created 0
   87   10425 [main] ssh (23800) user_info::create: opening user shared for 'S-1-5-21-1074337292-3126344265-1178006881-1002' at 0x1A1000000
   73   10498 [main] ssh (23800) user_info::create: user shared version AB1FCCE8
   74   10572 [main] ssh (23800) fhandler_pipe::create: name \\.\pipe\cygwin-e022582115c10879-23800-sigwait, size 11440, mode PIPE_TYPE_MESSAGE
   86   10658 [main] ssh (23800) fhandler_pipe::create: pipe read handle 0x12C
   52   10710 [main] ssh (23800) fhandler_pipe::create: CreateFile: name \\.\pipe\cygwin-e022582115c10879-23800-sigwait
   71   10781 [main] ssh (23800) fhandler_pipe::create: pipe write handle 0x130
   55   10836 [main] ssh (23800) dll_crt0_0: finished dll_crt0_0 initialization
--- Process 23800 loaded C:\Program Files (x86)\Citrix\ICA Client\epclient64.dll at 00007ffe00070000
--- Process 23800 loaded C:\Windows\System32\user32.dll at 00007ffe21e20000
--- Process 23800 loaded C:\Windows\System32\win32u.dll at 00007ffe20130000
--- Process 23800 loaded C:\Windows\System32\gdi32.dll at 00007ffe20df0000
--- Process 23800 loaded C:\Windows\System32\gdi32full.dll at 00007ffe1fea0000
--- Process 23800 loaded C:\Windows\System32\msvcp_win.dll at 00007ffe1fcd0000
--- Process 23800 loaded C:\Windows\System32\ucrtbase.dll at 00007ffe1fb30000
--- Process 23800 loaded C:\Windows\System32\combase.dll at 00007ffe21a90000
--- Process 23800 loaded C:\Windows\System32\version.dll at 00007ffe0b1f0000
--- Process 23800 loaded C:\Windows\System32\bcrypt.dll at 00007ffe1f130000
--- Process 23800 loaded C:\Windows\System32\imm32.dll at 00007ffe204e0000
--- Process 23800 loaded C:\Windows\System32\ntmarta.dll at 00007ffe1e850000
--- Process 23800 thread 15480 created
--- Process 23800 thread 15424 created
--- Process 23800, exception c0000005 at 00007ffd8f028094
--- Process 23800 thread 21708 created
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
[clip like entries]
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800 thread 15480 exited with status 0x0
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
[clip]
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800 loaded C:\Windows\System32\kernel.appcore.dll at 00007ffe1e7d0000
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
[clip]
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800 thread 21708 exited with status 0x0
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
[clip an inmense amount of lines like the one just above this line]
--- Process 23800, exception c0000005 at 00007ffd8efc0a5c
--- Process 23800 thread 22168 exited with status 0xc0000005
--- Process 23800 exited with status 0xc0000005
Segmentation fault

jcabrera AT jicman ~
$
== end strace ssh ==

This is the version installed:
$ uname -a
CYGWIN_NT-10.0-22631 jicman 3.4.10-1.x86_64 2023-11-29 12:12 UTC x86_64 Cygwin

Here is MS stuff:
== beg MS Stuff ==
$ systeminfo

Host Name:                 JICMAN
OS Name:                   Microsoft Windows 11 Pro
OS Version:                10.0.22631 N/A Build 22631
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
==end MS Stuff==

Thoughts anyone?

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