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From: Takashi Yano <takashi.yano@nifty.ne.jp>
To: cygwin@cygwin.com
Subject: Re: Regression in Cygwin 3.2.0
Date: Sat, 17 Apr 2021 21:37:14 +0900	[thread overview]
Message-ID: <20210417213714.2a3dad50885c85f4faf4e1b6@nifty.ne.jp> (raw)
In-Reply-To: <000b01d732a9$c15bf510$4413df30$@cl.cam.ac.uk>

On Fri, 16 Apr 2021 11:17:50 +0100
David Allsopp wrote:
> I'm unable to build OCaml using the mingw-w64 compilers with Cygwin 3.2.0.
> Windows 10.0.19042.928 (and tried on three different machines so far)
> 
> Repro:
> 
>  - Fresh Cygwin64 installation with make, libiconv, mingw64-x86_64-gcc-core
> and git added; fire up mintty
>  - git clone --depth 1 --recursive https://github.com/ocaml/ocaml
>  - cd ocaml && ./configure --host=x86_64-w64-mingw32 && make -j8 flexdll &&
> make -j8 world.opt
> 
> This is consistently hanging with Cygwin 3.2.0 and seems possibly to have
> something to do with linking (the creation of runtime/ocamlrun.exe and
> stdlib/camlheader, which is also an executable, seem to be part of the
> problem).
> 
> It can be immediately fixed by downgrading to Cygwin 3.1.7, cleaning the
> tree and repeating the build.
> 
> I'm of course very happy to try to reduce this to a smaller repro case, but
> is there an obvious culprit in Cygwin 3.2.0 to check before I do?

Thanks for the report. I looked into this problem and found
that the caused is the combination of some race issues for
non-cygwin processes in pty and console code.

I will submit the patches fixing this issue.

-- 
Takashi Yano <takashi.yano@nifty.ne.jp>

  parent reply	other threads:[~2021-04-17 12:37 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16 10:17 David Allsopp
2021-04-16 12:05 ` Thomas Wolff
2021-04-16 14:07   ` David Allsopp
2021-04-16 14:44     ` Thomas Wolff
2021-04-16 17:26       ` David Allsopp
2021-04-17 12:37 ` Takashi Yano [this message]
2021-04-18 10:58   ` David Allsopp

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