DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org CD00D385141E
Subject: Re: Unix Domain Socket Limitation?
To: Ken Brown <kbrown@cornell.edu>, cygwin <cygwin@cygwin.com>
References: <71490665-31b0-f63c-74da-461a053fac21@huarp.harvard.edu>
 <55ea1649-1979-6238-75ab-69100c22e069@cornell.edu>
 <4260ad1b-4ab2-fa36-fd0e-7c9644560114@huarp.harvard.edu>
 <38a82f82-1ef9-768e-7d3e-15f63147e188@cornell.edu>
 <a1f6e9af-7c0b-4d3f-4198-1c7bff4869dc@huarp.harvard.edu>
 <16165727-f614-1543-70bc-36457ddbf260@cornell.edu>
From: Norton Allen <allen@huarp.harvard.edu>
Message-ID: <75d1315b-5a56-a2e5-310d-6ac33a3cf17c@huarp.harvard.edu>
Date: Mon, 30 Nov 2020 13:26:32 -0500
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On 11/30/2020 1:14 PM, Ken Brown wrote:
> I can reproduce the hang, and it happens if I use the new AF_UNIX code 
> also. But what I'm seeing (at least with the new code) isn't exactly 
> what you describe.
>
> When the server's first select call returns, accept succeeds.  The 
> server then calls select a second time, and that call doesn't return.  
> I haven't checked yet to see what's going on in the client, and I may 
> not get to that for a while.
>
That's good news, and seems to be consistent with my theory that it is 
some sort of race condition that might be particularly sensitive to 
system-specific timing. I am compiling cygwin1.dll now.


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