Re: killpg(pgid, 0) fails if the process is in the middle of spawnve()

[Jun T <takimoto-j@kba.biglobe.ne.jp>]

> 2022/05/18 23:54, Corinna Vinschen <corinna-cygwin@cygwin.com> wrote:
> 
> For a start, can you try the above patch? 

Thanks for a quick response. The patch seems to solve the problem.
Of course there is a possibility that it happens with very low probability,
but I haven't get the problem by running 'cmd | less' many times, say
fifty times or so.

I didn't notice any bad side effects, and I guess the probability is
very low if it ever happens (so not easy to detect it).
# I tried running 'ls | less' several times while running 
#   while true; do ps; done
# in another terminal, but didn't get duplicated processes.


PS:
I'm new to building cygwin1.dll by myself, and have a few questions:
(1) After make, I've manually copied new-cygwin1.dll to /bin/cygwin1.dll.
I didn't copy/install any other files. Is this OK?
(2) What are cygwin0.dll and cygwin1.dbg? The latter is a new cygwin1.dll
with debug info?
(3) Is there a simple way to build only new-cygwin1.dll (and anything
required by it), without building (or trying to build) unnecessary
things (especially documents)?

--
Jun