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Date: Thu, 25 May 2017 18:59:37 +0300
From: Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To: cygwin AT cygwin DOT com
Message-ID: <1362259325.20170525185937@yandex.ru>
To: Houder <houder AT xs4all DOT nl>, cygwin AT cygwin DOT com
Subject: Re: Clueless! sshd ONLY fails at system startup (XP/SP3) ...
In-Reply-To: <20c9be1102ad4e7590b837c068d3f0ba@xs4all.nl>
References: <20c9be1102ad4e7590b837c068d3f0ba AT xs4all DOT nl>
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Greetings, Houder!

> Hi,

> YES, I know, XP is NOT supported anymore ... However, I started
> out on XP ... and it has sshd running as a Window service,

>      installed and configured (as approved by Corinna :-)

> ... some time ago I may have upgraded openssh over there (yes, I
> am now running W7) ... I cannot really remember. Yes, sometimes I
> visit (ssh) the "old station" (XP) for info that I am missing.

> (both machines are behind a firewall - rest assured)

> "Suddenly" (yesterday?) I noticed that the "sshd daemon" fails;
> it is started at system startup (i.e. an automatic service).

> When the service is restarted after system startup, i.c.

>      cygrunsrv -E sshd; cygrunsrv -S sshd

> it then works flawlessly (which amazes me, given the error in
> the sshd.log)

What if you `net start "Cygwin sshad"` ?

> ... tried several things ... in the end, I reinstalled Cygwin +
> openssh (a minimal installation) -- using the time machine.

> However this new, minimal installation of Cywin fails in the exact
> same way!

> Again tried some things ... Finally, I decided to post my problem.

> Any suggestions? (Yes, XP has F-Secure as anti-virus)

> The message in the sshd.log:

> Server listening on 0.0.0.0 port <X>.^M # X = some port, but not 22
>        1 [main] sshd 3152 E:\Cygwin25\usr\sbin\sshd.exe: *** fatal error 
> in forked process - fork: can't reserve memory for parent stack 0x30000 
> - 0x230000, (child has 0x40000 - 0x240000), Win32 error 487
>   395874 [main] sshd 3152 cygwin_exception::open_stackdumpfile: Dumping 
> stack trace to sshd.exe.stackdump
>        3 [main] sshd 536 fork: child -1 - forked process 3152 died 
> unexpectedly, retry 0, exit code 0x100, errno 11
> fork: Resource temporarily unavailable^M

> Do I interpret this correctly? The child (sshd) fails to "allocate
> stack for the parent (sshd)" ...

> WHY does this only happen at system STARTUP ?????

Any "antivirus" running on that system?
Did you try to fully rebase your installation?


-- 
With best regards,
Andrey Repin
Thursday, May 25, 2017 18:57:22

Sorry for my terrible english...


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