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From: "D. N. Knisely" <dnk AT lucent DOT com>
To: <cygwin AT cygwin DOT com>
Subject: RE: cygwin-1.3.11-3 Problem with Privoxy
Date: Tue, 25 Jun 2002 10:11:11 -0500
Message-ID: <LOEFIDOJKFHHHOOHLIHJGEIOCGAA.dnk@lucent.com>
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I don't think that multiple versions of cygwin1.dll is the problem.
Coincidentally, this system is a recent clean install of XP without too much
built-up crud.  I searched and found one extra copy (that came along with
xplanet), but that wasn't running.  Even after deleting it, the same problem
occurs:

Jun 25 14:00:31 Privoxy(1628300860) Error: can't fork: No error

Further inspection of privoxy suggests that whoever added CYGWIN hooks chose
to use threads rather than forking, so it is actually a Posix threads
problem.  When I disabled Posix thread use (which reverts to using fork), it
started working with 1.3.11.  Here is the code that no longer works; I have
no experience with Posix threads:

#if defined(FEATURE_PTHREAD) && !defined(SELECTED_ONE_OPTION)
#define SELECTED_ONE_OPTION
         {
            pthread_t the_thread;
            pthread_attr_t attrs;

            pthread_attr_init(&attrs);
            pthread_attr_setdetachstate(&attrs, PTHREAD_CREATE_DETACHED);
            child_id = (pthread_create(&the_thread, &attrs,
               (void*)serve, csp) ? -1 : 0);
            pthread_attr_destroy(&attrs);
         }
#endif

child_id is ending up as -1.  Did anything change in this area in 1.3.11?

Doug Knisely


>> On Mon, Jun 24, 2002 at 02:10:01PM -0500, D. N. Knisely wrote:
>> >I installed the new cygwin-1.3.11-3 libraries today.  I have been
running an
>> >OOTB build of privoxy (version 2.9.14), and it suddenly stopped working.
>> >The error indicates that it can't fork with no error code (?) (it
appears to
>> >spawn a process when a new proxy access occurs).

>> Sounds a lot like the dreaded "two versions of cygwin1.dll on your
system"
>> problem.

>> cgf


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