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Date: Mon, 16 Apr 2001 17:31:39 -0400
From: Christopher Faylor <cgf AT redhat DOT com>
To: Cygwin Developers <cygwin-developers AT cygwin DOT com>
Subject: Re: Current CVS is non-functioning
Message-ID: <20010416173139.A21767@redhat.com>
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In-Reply-To: <20010416230948.H8266@cygbert.vinschen.de>; from vinschen@redhat.com on Mon, Apr 16, 2001 at 11:09:48PM +0200

On Mon, Apr 16, 2001 at 11:09:48PM +0200, Corinna Vinschen wrote:
>On Mon, Apr 16, 2001 at 03:45:13PM -0400, Christopher Faylor wrote:
>> On Mon, Apr 16, 2001 at 08:40:27PM +0200, Corinna Vinschen wrote:
>> >On Mon, Apr 16, 2001 at 07:15:50PM +0200, Corinna Vinschen wrote:
>> >> On Mon, Apr 16, 2001 at 12:16:50PM -0400, Earnie Boyd wrote:
>> >> > I've just built the current CVS and it is non-functioning.  It locked up
>> >> > my system hard to the point I had to do a hard reboot.  The last update
>> >> > I had was from the 04/13/01 so the changes that have caused this were
>> >> > within the past three days.  I don't have time currently to help debug
>> >> > this, sorry.  Maybe more time later this week.
>> >> > 
>> >> > Earnie.
>> >> 
>> >> I have similar problems. I can use it in a cmd window. I can use
>> >> it using an ssh connection only if ForwardX11 is NO because xauth
>> >> hangs otherwise. I can't use scp without tricking around anymore.
>> >> 
>> >> I have checked if my getgroups() change is doing this (you never know)
>> >> but it isn't.
>> >> 
>> >> Since today are still holidays in Germany and I'm nevertheless
>> >> debugging mmap(), I would appreciate if I don't have to debug
>> >> that problem as well.
>> >> 
>> >> Thanks,
>> >> Corinna
>> >
>> >I have just started gdb to look where the last process (which is
>> >either /bin/sh or /usr/X11R6/bin/xauth) hangs and it's always
>> >the same, AFAICS. It hangs in 
>> >
>> >#3  0x6105856c in fhandler_pipe::ready_for_read (this=0x1a0283f8, fd=0,
>> >    howlong=4294967295, ignra=0) at ../../../../src/winsup/cygwin/select.cc:484
>> >
>> >In all cases when reading from stdin which is a pipe here (since ssh
>> >is compiled using USE_PIPES option).
>> >
>> >Has somebody a clue why this happens suddenly?
>> 
>> Is there a problem with inheritance?  This is usually the symptom of keeping
>> one end of a pipe open.
>
>The problem disappears when Cygwin is compiled without NEWVFORK...

Ok.  I understand.  If I can't fix this in half an hour, I'll turn NEWVFORK
back off again.

cgf