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Date: Mon, 16 Apr 2001 23:09:48 +0200
From: Corinna Vinschen <vinschen AT redhat DOT com>
To: Cygwin Developers <cygwin-developers AT cygwin DOT com>
Subject: Re: Current CVS is non-functioning
Message-ID: <20010416230948.H8266@cygbert.vinschen.de>
Reply-To: Corinna Vinschen <cygwin-developers AT cygwin DOT com>
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References: <3ADB1AF2 DOT 29F3D8D AT yahoo DOT com> <20010416191550 DOT A8266 AT cygbert DOT vinschen DOT de> <20010416204027 DOT F8266 AT cygbert DOT vinschen DOT de> <20010416154513 DOT A19315 AT redhat DOT com>
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In-Reply-To: <20010416154513.A19315@redhat.com>; from cgf@redhat.com on Mon, Apr 16, 2001 at 03:45:13PM -0400

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...

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.