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From: "Karl M" <karlm30 AT hotmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: services not starting with 20060104 snapshot
Date: Thu, 05 Jan 2006 02:41:42 -0800
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>From: Christopher Faylor Subject: Re: services not starting with 20060104 
>snapshot
>Date: Thu, 5 Jan 2006 01:05:45 -0500
>
>On Thu, Jan 05, 2006 at 12:42:56AM -0500, Igor Peshansky wrote:
> >On Wed, 4 Jan 2006, Christopher Faylor wrote:
> >
> >> On Wed, Jan 04, 2006 at 11:22:13PM -0500, Igor Peshansky wrote:
> >> >On Wed, 4 Jan 2006, Christopher Faylor wrote:
> >> >>On Wed, Jan 04, 2006 at 08:45:15PM -0500, Igor Peshansky wrote:
> >> >>>On Wed, 4 Jan 2006, Christopher Faylor wrote:
> >> >>>
> >> >>>>On Wed, Jan 04, 2006 at 06:38:26PM -0500, Igor Peshansky wrote:
> >> >>>>>Frankly, I'm not sure what the right fix would be in this case, or 
>even
> >> >>>>>how to debug this...  Any ideas on how I can simulate service 
>startup
> >> >>>>>on the command line (to allow popping up gdb) would be greatly
> >> >>>>>appreciated.
> >> >>>>
> >> >>>>Does the change I just checked into CVS cause any difference in
> >> >>>>behavior?  If not, could you also try changing the 
>CreateWindowStation
> >> >>>>argument &sec_all_nih to NULL?
> >> >>>
> >> >>>Nope, sorry to say, neither helped.  In both cases I got the same 
>error
> >> >>>1053 when starting the service.  The Windows error log messages are
> >> >>>identical as well.
> >> >>
> >> >>How about the latest CVS?  This will probably revert to the "ssh
> >> >>localhost date" failing scenario, I assume.
> >> >
> >> >Sigh.  Exactly.  The service starts, though...
> >> >
> >> >I wonder if the service startup problem has to do with the fact that
> >> >spawn_guts() calls GetProcessWindowStation() and isn't getting the one
> >> >you create in fhandler_console::need_invisible()...  Hmm, no, you call
> >> >SetProcessWindowStation() there too...  I can't think of a way for me
> >> >to check whether it succeeds, though.
> >>
> >> Can you try inverting the (now) two CreateWindowStation calls in
> >> need_invisible so that the "CygwinInvisible" case is called first and
> >> the NULL case is called second?
> >
> >Nope, didn't work.  The service doesn't start in this case.
> >
> >> And, if that doesn't work, then try commenting out the
> >> CloseWindowStation.
> >
> >I wasn't sure whether you meant commenting it out after the swap or
> >before, so I tried both.  It didn't affect the behavior in either case
> >(service not started with the swap; no output from ssh without the swap).
>
>Any and all combinations are welcome at this point.  There seem to be an
>infinite number of straws.
>
>Next straw would be to put a call to init_console_handler(TRUE); just 
>before
>the call to CloseWindowStation:
>
>       if (horig && h && h != horig && SetProcessWindowStation (horig))
>	{
>	  set_console_handler_true (TRUE);
>	  CloseWindowStation (h);
>	}
>
> >> Also, what version of XP are you running?  Pro?  Is it up-to-date with
> >> all service packs and updates?
> >
> >I'm running XP Pro SP1, with most updates applied (except KB835409 and
> >KB910437, which are pending).
>
>Maybe that is a clue, as Yitzchak suggested.  I'd missed that in the 
>cygcheck
>output.  I'm running SP2 and I believe Corinna is also.
>
I just tried the 200601040513 snapshot on two similar XP machines (except 
for SP1 on one, SP2 recently applied on the other) it works on SP2, I had to 
revert to 20060103 on the SP1 box.

HTH,

...Karl




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