linux-kernel - Re: [PATCH] MODSIGN: Change default key details [ver #2]

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Message-ID: <21274.1430405427@warthog.procyon.org.uk>
Date:	Thu, 30 Apr 2015 15:50:27 +0100
From:	David Howells <dhowells@...hat.com>
To:	sedat.dilek@...il.com
Cc:	dhowells@...hat.com,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	keyrings@...ux-nfs.org, Rusty Russell <rusty@...tcorp.com.au>,
	LKML <linux-kernel@...r.kernel.org>,
	linux-security-module@...r.kernel.org,
	James Morris <james.l.morris@...cle.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] MODSIGN: Change default key details [ver #2]

Sedat Dilek <sedat.dilek@...il.com> wrote:

> This happened a 2nd time with a different kernel-series!
> Not sure why this was the case.
> It did not happen when rebuilding with the same kernel-config again.
> Not sure if parallel-make-jobs might be a cause for this (see attached
> build-script).

Yeah.  I've had other reports, but I can't see anything obvious.  I have a
suspicion there may be something not declared quite right in the makefile - or
even a race in make -jN, but I don't know how to reproduce it.

> For my quick builds of rcN Linux-kernels I normally do not need
> signing my modules.

Me neither.  Having module signing done on installation, not during the build,
is really inconvenient since I don't install the modules on my test machine
but rather copy them over with scp after booting the kernel with tftp.

> Attached is my simple build-script for generating Debian/Ubuntu kernel
> packages via builddeb script.

Do you have an rpmbuild version?

David
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