[ANNOUNCEMENT] cygwin 3.3.0-0.2.6c1f49f83fde (TEST)

[Ken Brown]

On 10/16/2021 1:42 PM, Chris Roehrig wrote:
> 
> On Mon Sep 27 2021, at 7:26 AM, Ken Brown via Cygwin <cygwin@cygwin.com> wrote:
> 
>> On 9/26/2021 8:57 PM, Chris Roehrig wrote:
>>> I have installed this (completely this time) and have encountered no issues with it.  I'm getting full gigabit speeds with my rsync transfers.   Looks great!
>>
>> Thanks for testing.
> 
> 
> I've encountered a crash that might be related.   I had previously been having occasional crashes/hangs of cat.exe over the years, but this is the first time I've ever gotten an error message:
> 
> cygwin error: 0 [fifo_reader] cat 11398 C:\cygwin\bin\cat.exe: *** fatal  error - Can't add a client handler, Win32 error 123

This isn't a crash in the usual sense.  It's the Cygwin fifo code issuing a 
fatal error because an attempt to create a new Windows pipe instance failed. 
And it's in code that's been around for a while, so it's not related to the new 
pipe implementation.

> cat here is reading from a fifo created with mkfifo.
> 
> I've only encountered it once (out of daily runs over the last couple weeks) and don't know how to replicate it.   Possibly a race?    Looks like my script has tried to mitigate this with a sleep 1 between the mkfifo and the fork: cat < $fifo &

The sleep shouldn't be necessary.  If it is, there's a bug in the fifo code. 
Can you remove the sleep and see what happens?  It would be great if that made 
it possible to replicate the problem.

Ken