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Re: Regression caused by Commit: 5bd7ad2b225b ("Preserve the real value

From: NeilBrown
Subject: Re: Regression caused by Commit: 5bd7ad2b225b ("Preserve the real value of -jN in MAKEFLAGS using jobserver.")
Date: Fri, 03 Nov 2017 12:27:37 +1100

On Wed, Nov 01 2017, NeilBrown wrote:

> On Tue, Oct 31 2017, Paul Smith wrote:
>> On Thu, 2017-09-28 at 20:41 +1000, NeilBrown wrote:
>>> I dug into this a bit.
>>> The regression is caused because the 'j' flag now causes
>>> arg_job_slots to be set, rather than setting job_slots directly.
>> I pushed a fix for this.
> Thanks.  Your fix appear to work as expected for my use-case.
> NeilBrown

A few times when building the linux kernel I've received the message

make[1]: warning: jobserver unavailable: using -j1.  Add '+' to parent make 

This isn't consistent so it is presumably only when some particular
target needs building. If I make a clean start, I always get the
It seems to throw the whole build into -j1 mode.
In this case I pass '-j8' on the command line.

Any idea what could be causing this?


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