From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [PATCH v2] ARM: dts: sunxi: Add regulators for LeMaker BananaPi Date: Wed, 07 Oct 2015 07:36:29 -0700 Message-ID: <7hzizu924y.fsf@deeprootsystems.com> References: <1438532305-5884-1-git-send-email-public_timo.s@silentcreek.de> <20150818153631.GH2547@lukather> <20151005173957.B1BD16C8150E@dd34104.kasserver.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20151005173957.B1BD16C8150E-RzmsueL7+k6AvxNu/8lEInnhMCiq3JZZ@public.gmane.org> (Timo Sigurdsson's message of "Mon, 5 Oct 2015 19:39:57 +0200 (CEST)") Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Timo Sigurdsson Cc: maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, pawel.moll-5wv7dgnIgG8@public.gmane.org, mark.rutland-5wv7dgnIgG8@public.gmane.org, ijc+devicetree-KcIKpvwj1kUDXYZnReoRVg@public.gmane.org, galak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org, wens-jdAy2FN1RRM@public.gmane.org, tyler.baker-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org List-Id: devicetree@vger.kernel.org "Timo Sigurdsson" writes: > Kevin Hilman schrieb am 24.09.2015 19:57: >> kernelci.org started finding boot faiulres[1] on bananapi linux-next >> around next-20150918, but it was only failing in some labs and not >> others. I finally bisected it down to this patch, which landed in >> linux-next in the form of 2d665a8a8350 ARM: dts: sunxi: Add regulators >> for LeMaker BananaPi. Reverting that commit on top of next-20150923 >> gets my bananapi booting again. >> >> Note it's kind of an interesting boot failure. The kernel boots fully >> to a shell, but panics after running a few commands. In particular >> 'dmesg -n1' seems to trigger it usually[2]. >> >> Kevin >> >> [1] >> http://kernelci.org/boot/sun7i-a20-bananapi/job/next/kernel/next-20150923/defconfig/multi_v7_defconfig/lab/lab-khilman/?_id=5602504359b514be146c326f >> [2] >> http://storage.kernelci.org/next/next-20150923/arm-multi_v7_defconfig/lab-khilman/boot-sun7i-a20-bananapi.html > > following up on my last email: I'm back from my vacation and I tried to > reproduce your problem, but my board doesn't seem to be affected, so I > cannot trigger it. > > I still think that the lower voltages may be the cause of your problem > with that specific board, so could you please test the attached patch on > top of my patch that you first experienced the problem with? Please let > us know whether this solves your issue or whether we need to dig deeper. Thanks for the patch. Looks like it's the OPPs. I went back to next-20150923 and verified it still fails. Then, I applied your patch and saw that it boots just fine. Kevin -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html