From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753996AbdCIK5N (ORCPT ); Thu, 9 Mar 2017 05:57:13 -0500 Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:38010 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751355AbdCIK5G (ORCPT ); Thu, 9 Mar 2017 05:57:06 -0500 Date: Thu, 9 Mar 2017 11:56:55 +0100 From: Pavel Machek To: Geert Uytterhoeven Cc: Linus Torvalds , Josh Poimboeuf , Andy Lutomirski , kernel list , Ingo Molnar , Andrew Lutomirski , Borislav Petkov , Brian Gerst , Denys Vlasenko , Peter Anvin , Peter Zijlstra , Thomas Gleixner Subject: Re: v4.10: kernel stack frame pointer .. has bad value (null) Message-ID: <20170309105655.GA29554@amd> References: <20170306163807.GA20689@amd> <20170307173821.yknj5htr7plgdwxv@treble> <20170307182855.262ezbon2pm67qfd@treble> <20170308173703.2h57rsltma3smbcm@treble> <20170308212253.GA29562@amd> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="mYCpIKhGyMATD0i+" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org --mYCpIKhGyMATD0i+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu 2017-03-09 10:38:46, Geert Uytterhoeven wrote: > Hi Pavel, >=20 > On Wed, Mar 8, 2017 at 10:22 PM, Pavel Machek wrote: > > Well, I have fast CPUs, but most of the time they just compile > > stuff. Especially bisect is compile-heavy. I suspect going back to > > gcc-3.2 would bring me bigger advantages than CPU upgrade... >=20 > I hope you do use ccache or distcc? I tried to use distcc before, but it was rather hard to maintain. No ccache here. Hmm. I guess ccache really makes sense for bisect. On the other hand... it should be possible to compile kernel 10 times faster than we normally do, without powering up additional machines and without caching tricks. Best regards, Pavel --=20 (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blo= g.html --mYCpIKhGyMATD0i+ Content-Type: application/pgp-signature; name="signature.asc" Content-Description: Digital signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAljBNPcACgkQMOfwapXb+vIcwgCfUPHwjmDEJk4pVV1iVApsKbPu swwAn27lDZ/mDTCCgVzrnuIYBZFcVYcf =HwZW -----END PGP SIGNATURE----- --mYCpIKhGyMATD0i+--