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Date: Tue, 11 Aug 2020 12:30:08 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Race condition hangs on multiple mintty/tcsh? Brad Wetmore
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On Aug 11 19:02, Takashi Yano via Cygwin wrote:
> On Tue, 11 Aug 2020 11:37:58 +0200
> Corinna Vinschen wrote:
> > On Aug 11 13:59, Takashi Yano via Cygwin wrote:
> > > Hi Thomas,
> > > 
> > > On Thu, 6 Aug 2020 15:31:24 +0200
> > > Thomas Wolff wrote:
> > > > Am 06.08.2020 um 13:46 schrieb Thomas Wolff:
> > > > > Am 06.08.2020 um 01:23 schrieb Kevin Schnitzius via Cygwin:
> > > > >> On Wednesday, August 5, 2020, 06:56:48 PM EDT, Thomas Wolff 
> > > > >> <towo AT towo DOT net> wrote:
> > > > >>> Am 04.08.2020 um 12:02 schrieb Thomas Wolff:
> > > > >>>> Am 04.08.2020 um 00:13 schrieb Brad Wetmore via Cygwin:
> > > > >>>>> Hi,
> > > > >>>>>
> > > > >>>>> I generally kick off multiple (10) mintty sessions, and place them
> > > > >>>>> around the screen.
> > > > >>>>> [...]
> > > > > I could reproduce one case of one of three terminals being 
> > > > > unresponsive also with xterm.
> > > > And it also happens if I drop select() from mintty (and use just 
> > > > non-blocking read()).
> > > > > Does anybody familiar with pty/select or recent changes have any idea?
> > > 
> > > I looked into this problem. After much struggle, I think
> > > I have found a workaround for this issue.
> > > 
> > > I am not sure why this solves the issue at all, however,
> > > this works for me.
> > > 
> > > Could you please test a patch attached?
> > 
> > Shall I commit the patch and create a developer snapshot for testing?
> 
> Thanks so much. That would be more convenient for potential testers.

Done.  Please try the latest snapshot from https://cygwin.com/snapshots/


Thanks,
Corinna

-- 
Corinna Vinschen
Cygwin Maintainer
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