Re: [PATCH] Use spawn() in GNU Make on Cygwin, updated

[Chris Faylor]

On Mon, Sep 02, 2013 at 06:40:01PM -0400, David Boyce wrote:
>   On Mon, Sep 2, 2013 at 4:19 PM, Chris Faylor wrote:
>
>     *There is one know issue with fork where dlls in forked processes
>     don't
>
>     load at the right address and cause cygwin errors.  That is usually
>     fixed by running the autorebase program.
>
>   And it is that issue to which I refer. One of my co-workers claims to
>   have an STC which, using make -j, can reliably reproduce fork failures
>   even in 1.7.24 (or at least some very recent version employing
>   autorebase). Possibly he's wrong, or possibly it's BLODA, but even if
>   it's BLODA a spawn-based version would likely not suffer from the same
>   problem. If your claim is that fork should be expected to work 100% of
>   the time in a fully rebased install (which is what I thought and what I
>   told him when this first came up) I'll be happy to try and get ahold of
>   the test case and send it in.
>   And if a command-line flag has been agreed upon as Eli says, that's
>   good enough for me. In fact any answer is good enough for me as long as
>   the resulting make.exe works reliably with -j at large scale factors.

I'm interested in test cases which show fork failing for which rebase doesn't
fix the problem unless it actually is a third party app causing interference.

If there are third-party apps interfering with Cygwin then they can also
influence spawn and other operations.  It's not just fork that's
affected.

In case anyone is wondering: http://cygwin.com/acronyms/#BLODA

cgf