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Date:      Fri, 20 Sep 2013 13:06:52 -0400
From:      "illoai@gmail.com" <illoai@gmail.com>
To:        Gary Palmer <gpalmer@freebsd.org>
Cc:        ml-freebsd-stable <freebsd-stable@freebsd.org>, Thomas Laus <lausts@acm.org>
Subject:   Re: FreeBSD 9-Stable + Atom D510 Freeze
Message-ID:  <CAHHBGkpECMXnrUKC6zuxRMNT6KD2QokvXM8KQeW_L3QekFtLgA@mail.gmail.com>
In-Reply-To: <20130920155208.GA55143@in-addr.com>
References:  <523AFF46.29244.4657A1@lausts.acm.org> <523B91F2.8070004@heuristicsystems.com.au> <523C49A9.5719.289C1E@lausts.acm.org> <20130920143615.GA40029@in-addr.com> <20130920144928.GA50355@mail.laus.org> <20130920155208.GA55143@in-addr.com>

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On 20 September 2013 11:52, Gary Palmer <gpalmer@freebsd.org> wrote:
> On Fri, Sep 20, 2013 at 10:49:28AM -0400, Thomas Laus wrote:
>> Gary Palmer [gpalmer@freebsd.org] wrote:
>> >
>> > When building kernel & world do you use the '-j' argument to do parallel
>> > builds?  AFAIK thats not done by default, but it is for some ports.
>> >
>> Gary:
>>
>> I just use the system defaults when building anything.  If there is a
>> '-j' argument passed to the compiler, I was not the one that did it.
>> Does this mean that the port building process needs to determine the
>> processor type in the configure stage?  I only use portmaster to keep
>> the ports updated.  I don't know of a global hook that will change the
>> compiler build flags in portmaster.
>
> Hi Tim,
>
> It's not a compiler flag, it's a make flag.  make -j n will fork off up to
> n compilers to do the build.  If you just do "make buildworld" then there
> is no parallel compilation.
>
> It used to be that ports had MAKE_JOBS_SAFE in the Makefile to mark that
> the port could be built using parallel compiles with the '-j' argument
> to make.  It appears that the logic has been switched and now you have
> to mark them as MAKE_JOBS_UNSAFE to say that parallel builds shouldn't be
> done, indicating that parallel builds are the default now (unless I'm
> misreading the code)
>
> You can try putting
>
> DISABLE_MAKE_JOBS=yes
>
> into /etc/make.conf to see if that stops the problem on port builds.
> Alternatively I think you could do
>
> portmaster -m DISABLE_MAKE_JOBS=yes <other options>
>
> However you'd have to do that each time you run portmaster.  I think
> putting
>
> PM_MAKE_ARGS="DISABLE_MAKE_JOBS=yes"
>
> in your .portmasterrc may do the same thing (not tried it).
>
> Note: this is NOT a fix.  If it works, it merely stops the ports builder
> from triggering the problem by not doing parallel compiles.  The compiles
> will also take longer.
>

I believe that both world/kernel & ports will honour
MAKE_JOBS_NUMBER=1 #(in /etc/make.conf)
which should restrict all builds to 1 "parallel" thread,
yes?

-- 
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