linux-kernel - RE: Can anyone suggest a better fix? Not sure if I understand the problem, but the patch fixed it

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Date:	Wed, 28 Aug 2013 16:47:34 +0000
From:	"Yang, Fei" <fei.yang@...el.com>
To:	Michal Marek <mmarek@...e.cz>
CC:	Sam Ravnborg <sam@...nborg.org>,
	"linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>,
	"'linux-kernel@...r.kernel.org' (linux-kernel@...r.kernel.org)" 
	<linux-kernel@...r.kernel.org>
Subject: RE: Can anyone suggest a better fix? Not sure if I understand the
 problem, but the patch fixed it

>> I thought fixdep is about finding module dependency, and it isn't 
>> needed for built-in drivers. Please correct me if I'm wrong.
>
>fixdep filters the *.d files generated by gcc. These files record source
>-> object file dependencies, to not miss rebuilds.

OK, then it's more likely to be a timing issue. I'm running my builds on a machine with 32 cores, and as the build is distributed to multi-processors, there might be a synchronization issue.
Do you know how the .d files getting deleted normally? I see only .o.cmd file left after the build is completed.

Michal
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