slow startup after upgrade

Corinna Vinschen
Thu Feb 19 19:04:00 GMT 2015

On Feb 19 11:53, Roger Orr wrote:
> I've tested again with the first patched cygwin1.dll:
> CYGWIN_NT-6.1-WOW LCLDN-DEV24 1.7.35(0.286/5/3) 2015-02-16 13:18 i686 Cygwin
> I can confirm the connections are occurring within the ldap_search_s
> call - here is one of the call stacks:
> [...]

AFAICS that's expected when enumerating accounts.

> Connection->Bind (enter username and password)
> (no new sessions)
> Browse->Search
> Base Dn - first naming context
> Filter: (&(objectClass=trustedDomain)(name=wibble))
> Gets 0 entries, quickly, no extra sessions visible
> Click 'Options'
> Select 'Chase Referrals'
> Click Ok
> Search again.
> Gets 0 entries, takes some seconds, and establishes nuermous TCP/IP connections.

Hunting down the other DCs I assume.

> (1) LDAP_OPT_REFERRALS is on by default
> (2) The fix added CN=System to the Base Dn - this seems to turn off referrals

I don't think it does.  The domain info is available on the DC you're
contacting so it doesn't have to ask others.  I assume here that
"wibble" is no valid domain name ;)

> --
> *aside*
> Sysinternals "ADInsight" is a 32bit only tool and, in order to work on
> a 64bit Windows you seem to have to manually inject the DLL
> ADInsightDll.dll (which is extracted into %TEMP%) into the target
> (32-bit!) process.

Uh, too bad.


Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat
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