From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yegor Yefremov Subject: Re: am3517: failed to boot 3.10-rc1 Date: Tue, 21 May 2013 10:27:56 +0200 Message-ID: <519B300C.1040608@visionsystems.de> References: <519202DC.10100@visionsystems.de> <20130514125216.GE21107@arwen.pp.htv.fi> <519235C5.1010608@visionsystems.de> <5193493C.8020301@visionsystems.de> <519355FC.5050206@visionsystems.de> <87li7dsg6j.fsf@linaro.org> Reply-To: yegor_sub1@visionsystems.de Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from ns.visionsystems.de ([62.145.30.242]:55597 "EHLO mail.visionsystems.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752674Ab3EUI2L (ORCPT ); Tue, 21 May 2013 04:28:11 -0400 In-Reply-To: <87li7dsg6j.fsf@linaro.org> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Kevin Hilman Cc: balbi@ti.com, "linux-omap@vger.kernel.org" , "Shilimkar, Santosh" , "Mark A. Greer" , Maxim Podbereznyy On 17.05.2013 18:51, Kevin Hilman wrote: > Yegor Yefremov writes: > >> On 15.05.2013 10:37, Yegor Yefremov wrote: >>> On 14.05.2013 15:01, Yegor Yefremov wrote: >>>> On 14.05.2013 14:52, Felipe Balbi wrote: >>>>> On Tue, May 14, 2013 at 11:24:44AM +0200, Yegor Yefremov wrote: >>>>>> Trying to boot 3.10-rc1 on an am3515 based board. With the same >>>>>> .config as 3.7 the system comes to RTC stops there. I've also tried >>>>>> make omap2plus_defconfig with no visible difference. I'm booting from >>>>>> MMC card and it will be detected by the system. Kernel is from >>>>>> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git, latest >>>>>> commit f722406faae2d073cc1d01063d1123c35425939e. Are there any pending >>>>>> patches needed to boot on am3517? >>>>> does v3.9 work ? Can you bisect ? >>>> 'git checkout v3.9' version is working, will try to bisect. >>> This is bisect's result: >>> >>> f7b861b7a6d9d1838cbbb5f4053e61578b86d134 is the first bad commit >>> commit f7b861b7a6d9d1838cbbb5f4053e61578b86d134 >>> Author: Thomas Gleixner >>> Date: Thu Mar 21 22:49:38 2013 +0100 >>> >>> arm: Use generic idle loop >>> >>> Use the generic idle loop and replace enable/disable_hlt with the >>> respective core functions. >>> >>> Signed-off-by: Thomas Gleixner >>> Cc: Linus Torvalds >>> Cc: Rusty Russell >>> Cc: Paul McKenney >>> Cc: Peter Zijlstra >>> Reviewed-by: Cc: Srivatsa S. Bhat >>> Cc: Magnus Damm >>> Cc: Russell King >>> Tested-by: Kevin Hilman # OMAP >>> Link: http://lkml.kernel.org/r/20130321215233.826238797@linutronix.de >>> >>> :040000 040000 887517403888ff3947bce216aa4c1ff3ce3af434 8dc5236688a80fc64fa4112ce6136ecf3a19bac9 M arch >> We had such a problem long ago >> (https://patchwork.kernel.org/patch/1220061/ and >> http://www.spinics.net/lists/arm-kernel/msg168865.html) and the >> workaround was to use hohlt in kernel parameters. But with this patch >> the "nohlt" has gone. So now we need a solution, that fixes the root >> of the problem. > The broken 'nohlt' feature was indeed a regression caused by the above > patch, but there's already a fix queued for v3.10-rc2[1], so -rc1 will > need the patch applied manually. > > Kevin > > [1] https://lkml.org/lkml/2013/5/5/6 Thanks. rc2's 'nohlt' is working as expected. Yegor