make -jN loops on Windows

[Niklas Larsson]

Other than using integer-simple I haven't done anything strange, just
standard mingw. I'm using the 'quick' flavour in my build.mk.

One thing to try is to use -d with make (and maybe tee the output to a
file, it produces tons of stuff). Then it may be possible to pinpoint where
it hangs.

Niklas


2013/8/29 Simon Peyton-Jones <simonpj at microsoft.com>

>  I was using integer-gmp. And sadly make –j2 locks up way before getting
> to integer-gmp.****
>
> ** **
>
> Simon****
>
> ** **
>
> *From:* Niklas Larsson [mailto:metaniklas at gmail.com]
> *Sent:* 28 August 2013 18:08
> *To:* Simon Peyton-Jones
> *Cc:* Kyle Van Berendonck; ghc-devs at haskell.org
>
> *Subject:* Re: make -jN loops on Windows****
>
>  ** **
>
> Hi!****
>
> ** **
>
> I have a hint of what could be wrong.****
>
> ** **
>
> I looked through my configuration and saw that I used integer-simple. When
> I changed it to integer-gmp it blew up with -j4 (it didn't hang though, it
> errored out in the linking phase). The build went fine after I reran
> without -j.****
>
> ** **
>
> Niklas****
>
> ** **
>
> 2013/8/28 Simon Peyton-Jones <simonpj at microsoft.com>****
>
>  I tried make –j2, which locked up.  “sh validate” used –j but I’m not
> sure with what N.****
>
>  ****
>
> It’s tantalising if it worked for you!  And it worked fine on my old Win7
> laptop.  Where did you get your mingw/msys installation from?  I got mine
> from http://www.mingw.org/, using the download installer
> “Mingw-get-setup.exe”.****
>
>  ****
>
> I have also just unravelled another bizarre failure, which I’ll describe
> in a separate email.  Sadly resolving the latter does not fix the make –j2
> problem.****
>
>  ****
>
> Simon****
>
>  ****
>
> *From:* ghc-devs [mailto:ghc-devs-bounces at haskell.org] *On Behalf Of *Niklas
> Larsson
> *Sent:* 27 August 2013 23:56
> *To:* Kyle Van Berendonck
> *Cc:* ghc-devs at haskell.org
> *Subject:* Re: make -jN loops on Windows****
>
>  ****
>
> Hi!****
>
>  ****
>
> Are you using make -j with or without number of jobs? I tried with make
> -j4 on my Windows 8 machine and it worked well.****
>
>  ****
>
> Niklas****
>
>  ****
>
> 2013/8/27 Kyle Van Berendonck <kvanberendonck at gmail.com>****
>
>  Hi Simon,****
>
>  ****
>
> I think this is a MinGW bug. If we're talking about the same bug (lockup,
> no console output, task manager shows cpu but it doesn't produce files,
> etc) I get it when building other projects with -j too and I don't think
> its GHC's fault.****
>
>  ****
>
> Regards,****
>
>  ****
>
> Kyle Van Berendonck****
>
>
> _______________________________________________
> ghc-devs mailing list
> ghc-devs at haskell.org
> http://www.haskell.org/mailman/listinfo/ghc-devs****
>
>   ****
>
>  ** **
>
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