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Re: Bash 5.1 fails parallel builds from source

From: Emanuel Haupt
Subject: Re: Bash 5.1 fails parallel builds from source
Date: Sat, 12 Dec 2020 13:45:24 +0100

Emanuel Haupt <ehaupt@FreeBSD.org> wrote:
> On 12/7/20 1:44 PM, Fazal Majid wrote:
> >> On Dec 7, 2020, at 15:37, Chet Ramey <chet.ramey@case.edu> wrote:
> >>
> >> Thanks for the report. I've never actually encountered this error.
> >> Just lucky, I guess.
> >
> > It’s a race condition. The machine I run it on has 6 cores and HT,
> > so I run it with a `make -j 12`, and even then, it’s not
> > consistently reproducible.
> Sure. I run make -j 4 at a minimum, make -j 8 sometimes, and I've
> never seen it. Not very reproducible.

Shortly after updating the FreeBSD port I received quite a few reports
about this. Although I wasn't able to reproduce the error myself it
appears that gentoo solved the race condition with this patch:


It's been confirmed to have solved the issue:



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