From mboxrd@z Thu Jan 1 00:00:00 1970 From: gregory.clement@free-electrons.com (Gregory CLEMENT) Date: Thu, 23 Oct 2014 13:49:50 +0200 Subject: [BISECTED] arm: mvebu: Kernel hang after ae9304c9d311 if OF_SELFTEST=y In-Reply-To: <87mw8nt5io.fsf@natisbad.org> References: <87mw8nt5io.fsf@natisbad.org> Message-ID: <5448EB5E.3010405@free-electrons.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Arnaud, On 23/10/2014 13:00, Arnaud Ebalard wrote: > Hi, > > Trying to boot a 3.17.1 (same thing w/ current tip of Linus tree or > 3.17.1) on two Marvell Armada 370 based platforms (NETGEAR ReadyNAS > 102 and Synology DS213j) ends up w/ the following: > > Starting kernel ... > > Uncompressing Linux... done, booting the kernel. > > Error: unrecognized/unsupported machine ID (r1 = 0x00000bde). > > Available machine support: > > ID (hex) NAME > ffffffff Generic DT based system > ffffffff Marvell Armada 380/385 (Device Tree) > ffffffff Marvell Armada 375 (Device Tree) > ffffffff Marvell Armada 370/XP (Device Tree) > > Please check your kernel config and/or bootloader. > > I bisected it up to ae9304c9d31117 ("Adding selftest testdata > dynamically into live tree"). For a while, my kernels are compiled w/ > OF_SELFTEST and it works w/o issue. After that commit, boot hangs as It would be interesting to have a feedback of a kernel with an appended dtb and OF_SELFTEST enabled to a different platform (ie non mvebu). Then we will know if it something related to mvebu or to the device tree support. I will try to see if I can do this. > presented above. Disabling the option solves the issue on 3.17 and > also for current tip of Linus tree. Reverting the commit on those > kernel is not straightforward. > > A config is attached. > > Cheers, > > a+ > > ps: my platforms all boot a kernel w/ an appended dtb. > Thanks for you report, Gregory -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gregory CLEMENT Subject: Re: [BISECTED] arm: mvebu: Kernel hang after ae9304c9d311 if OF_SELFTEST=y Date: Thu, 23 Oct 2014 13:49:50 +0200 Message-ID: <5448EB5E.3010405@free-electrons.com> References: <87mw8nt5io.fsf@natisbad.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <87mw8nt5io.fsf-LkuqDEemtHBg9hUCZPvPmw@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Arnaud Ebalard Cc: Gaurav Minocha , Grant Likely , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Jason Cooper , Andrew Lunn , Sebastian Hesselbarth List-Id: devicetree@vger.kernel.org Hi Arnaud, On 23/10/2014 13:00, Arnaud Ebalard wrote: > Hi, > > Trying to boot a 3.17.1 (same thing w/ current tip of Linus tree or > 3.17.1) on two Marvell Armada 370 based platforms (NETGEAR ReadyNAS > 102 and Synology DS213j) ends up w/ the following: > > Starting kernel ... > > Uncompressing Linux... done, booting the kernel. > > Error: unrecognized/unsupported machine ID (r1 = 0x00000bde). > > Available machine support: > > ID (hex) NAME > ffffffff Generic DT based system > ffffffff Marvell Armada 380/385 (Device Tree) > ffffffff Marvell Armada 375 (Device Tree) > ffffffff Marvell Armada 370/XP (Device Tree) > > Please check your kernel config and/or bootloader. > > I bisected it up to ae9304c9d31117 ("Adding selftest testdata > dynamically into live tree"). For a while, my kernels are compiled w/ > OF_SELFTEST and it works w/o issue. After that commit, boot hangs as It would be interesting to have a feedback of a kernel with an appended dtb and OF_SELFTEST enabled to a different platform (ie non mvebu). Then we will know if it something related to mvebu or to the device tree support. I will try to see if I can do this. > presented above. Disabling the option solves the issue on 3.17 and > also for current tip of Linus tree. Reverting the commit on those > kernel is not straightforward. > > A config is attached. > > Cheers, > > a+ > > ps: my platforms all boot a kernel w/ an appended dtb. > Thanks for you report, Gregory -- Gregory Clement, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com -- 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