From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jon Hunter Subject: Re: [BISECTED] v4.3-rc5: OMAP1 boot hang Date: Fri, 13 Nov 2015 09:21:08 +0000 Message-ID: <5645AB84.2070004@nvidia.com> References: <20151013073046.GB7588@blackmetal.musicnaut.iki.fi> <20151111214444.GF2260@blackmetal.musicnaut.iki.fi> <20151113005722.GQ32536@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20151113005722.GQ32536@n2100.arm.linux.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Russell King - ARM Linux , Aaro Koskinen Cc: Tony Lindgren , linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: linux-omap@vger.kernel.org On 13/11/15 00:57, Russell King - ARM Linux wrote: > On Wed, Nov 11, 2015 at 11:44:44PM +0200, Aaro Koskinen wrote: >> Hi, >> >> Any suggestions how to debug this further? This happens also with v4.3 >> final. Is the CPU_SW_DOMAIN_PAN supposed to work with this CPU? >> >> I tried to disable various drivers (e.g. NAND, USB) and it still >> hangs... And it seems always at the same printk time stamp (roughly at >> 25 seconds). > > No idea what so ever, and I have zero knowledge of this ARM925 thing - > never had one, and never seen any specs on it. The weird thing is > that it's not producing any oops dump - I guess the kernel is totally > dead and unresponsive. I'd ask if you have a heartbeat LED, but I'd > guess the answer will be that the hardware is too limited. Both the 1510 and 5910 had the ARM925T CPU. Probably the best source of info is the 5910 documentation [0], specifically the MPU subsystem document [1]. Hope this helps. Jon [0] http://www.ti.com/product/OMAP5910/technicaldocuments [1] http://www.ti.com/lit/pdf/spru671 From mboxrd@z Thu Jan 1 00:00:00 1970 From: jonathanh@nvidia.com (Jon Hunter) Date: Fri, 13 Nov 2015 09:21:08 +0000 Subject: [BISECTED] v4.3-rc5: OMAP1 boot hang In-Reply-To: <20151113005722.GQ32536@n2100.arm.linux.org.uk> References: <20151013073046.GB7588@blackmetal.musicnaut.iki.fi> <20151111214444.GF2260@blackmetal.musicnaut.iki.fi> <20151113005722.GQ32536@n2100.arm.linux.org.uk> Message-ID: <5645AB84.2070004@nvidia.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 13/11/15 00:57, Russell King - ARM Linux wrote: > On Wed, Nov 11, 2015 at 11:44:44PM +0200, Aaro Koskinen wrote: >> Hi, >> >> Any suggestions how to debug this further? This happens also with v4.3 >> final. Is the CPU_SW_DOMAIN_PAN supposed to work with this CPU? >> >> I tried to disable various drivers (e.g. NAND, USB) and it still >> hangs... And it seems always at the same printk time stamp (roughly at >> 25 seconds). > > No idea what so ever, and I have zero knowledge of this ARM925 thing - > never had one, and never seen any specs on it. The weird thing is > that it's not producing any oops dump - I guess the kernel is totally > dead and unresponsive. I'd ask if you have a heartbeat LED, but I'd > guess the answer will be that the hardware is too limited. Both the 1510 and 5910 had the ARM925T CPU. Probably the best source of info is the 5910 documentation [0], specifically the MPU subsystem document [1]. Hope this helps. Jon [0] http://www.ti.com/product/OMAP5910/technicaldocuments [1] http://www.ti.com/lit/pdf/spru671