fork() and NT error 0xC0000135 (STATUS_DLL_NOT_FOUND)

[Christopher Faylor]

On Tue, Oct 29, 2013 at 04:13:14PM +0000, Lavrentiev, Anton (NIH/NLM/NCBI) [C] wrote:
>Hello All,
>
>I can't find a similar problem reported earlier, so please excuse the question
>if it looks familiar.
>
>We have a software package that installs like a miniature CYGWIN deployment
>(basically, only cygwin1.dll and just a few other libraries in /bin
>along with cygrunsrv.exe), and there are no shells.
>
>cygrunsrv.exe is used to register and launch a Windows service with a binary
>located under "/opt/..." (which is a ported UNIX server).  The binary is started
>just fine, but when it tries to fork(), it gets the error 0xC0000135 (w/ errno=11,
>EAGAIN).  I traced it down to the fact that before fork() there is chdir("/") in
>that server binary.  Can it be the reason for the failed fork() that it can no longer
>find cygwin1.dll?  Unfortunately, I can't extend Windows PATH to include the
>CYGWIN /bin directory (because the cygrunsrv runs under an unmanaged service
>account).  Is there any other fix?

Cygwin doesn't rely on the PATH environment variable to find the binary
being forked.  It would be disastrous if it did.

cgf

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