From: arnd@arndb•de (Arnd Bergmann)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 0/8] Raspberry Pi 2 support.
Date: Tue, 22 Dec 2015 00:11:32 +0100 [thread overview]
Message-ID: <201512220011.32234.arnd@arndb.de> (raw)
In-Reply-To: <20151220221158.GA6416@omega>
On Sunday 20 December 2015, Alexander Aring wrote:
> On Fri, Dec 18, 2015 at 11:08:26AM +0100, Alexander Aring wrote:
> > [ 0.000000] Memory policy: Data cache writeback
> > [ 0.000000] BUG: mapping for 0x3f201000 at 0xf0201000 out of vmalloc space
This is a separate bug, right?
> > [ 0.000000] ------------[ cut here ]------------
> > [ 0.000000] WARNING: CPU: 0 PID: 0 at arch/arm/kernel/devtree.c:149 arm_dt_init_cpu_maps+0x100/0x1a4()
> > [ 0.000000] DT /cpu 2 nodes greater than max cores 1, capping them
> > [ 0.000000] Modules linked in:
> > [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.4.0-rc5+ #989
> > [ 0.000000] Hardware name: BCM2835
> > [ 0.000000] [<c0016c4c>] (unwind_backtrace) from [<c0013e58>] (show_stack+0x20/0x24)
> > [ 0.000000] [<c0013e58>] (show_stack) from [<c0247620>] (dump_stack+0x20/0x28)
> > [ 0.000000] [<c0247620>] (dump_stack) from [<c0023a84>] (warn_slowpath_common+0x9c/0xc4)
> > [ 0.000000] [<c0023a84>] (warn_slowpath_common) from [<c0023aec>] (warn_slowpath_fmt+0x40/0x48)
> > [ 0.000000] [<c0023aec>] (warn_slowpath_fmt) from [<c074ef94>] (arm_dt_init_cpu_maps+0x100/0x1a4)
> > [ 0.000000] [<c074ef94>] (arm_dt_init_cpu_maps) from [<c074e60c>] (setup_arch+0x6f4/0x89c)
> > [ 0.000000] [<c074e60c>] (setup_arch) from [<c074b9cc>] (start_kernel+0x74/0x3a4)
> > [ 0.000000] [<c074b9cc>] (start_kernel) from [<00008078>] (0x8078)
> > [ 0.000000] ---[ end trace cb88537fdc8fa200 ]---
> > [ 0.000000] DT missing boot CPU MPIDR[23:0], fall back to default cpu_logical_map
> > [ 0.000000] CPU: All CPU(s) started in SVC mode.
>
> I can remove this WARNING when I enable CONFIG_SMP.
I think we should try to change this in the code.
> > [ 0.000000] Virtual kernel memory layout:
> > [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB)
> > [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB)
> > [ 0.000000] vmalloc : 0xf0800000 - 0xff800000 ( 240 MB)
> > [ 0.000000] lowmem : 0xc0000000 - 0xf0000000 ( 768 MB)
> > [ 0.000000] modules : 0xbf000000 - 0xc0000000 ( 16 MB)
> > [ 0.000000] .text : 0xc0008000 - 0xc074a7cc (7434 kB)
> > [ 0.000000] .init : 0xc074b000 - 0xc07b4000 ( 420 kB)
> > [ 0.000000] .data : 0xc07b4000 - 0xc081e910 ( 427 kB)
> > [ 0.000000] .bss : 0xc081e910 - 0xc08ca80c ( 688 kB)
> > [ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> > [ 0.000000] NR_IRQS:16 nr_irqs:16 16
> > [ 0.000000] Kernel panic - not syncing: /soc/local_intc: unable to map local interrupt registers
> > [ 0.000000]
> > [ 0.000000] CPU: 0 PID: 0 Comm: swapper Tainted: G W 4.4.0-rc5+ #989
> > [ 0.000000] Hardware name: BCM2835
> > [ 0.000000] [<c0016c4c>] (unwind_backtrace) from [<c0013e58>] (show_stack+0x20/0x24)
> > [ 0.000000] [<c0013e58>] (show_stack) from [<c0247620>] (dump_stack+0x20/0x28)
> > [ 0.000000] [<c0247620>] (dump_stack) from [<c00c17c0>] (panic+0x84/0x210)
> > [ 0.000000] [<c00c17c0>] (panic) from [<c0771d5c>] (bcm2836_arm_irqchip_l1_intc_of_init+0x94/0x110)
> > [ 0.000000] [<c0771d5c>] (bcm2836_arm_irqchip_l1_intc_of_init) from [<c0779f04>] (of_irq_init+0x1a0/0x2a8)
> > [ 0.000000] [<c0779f04>] (of_irq_init) from [<c0771af4>] (irqchip_init+0x14/0x1c)
> > [ 0.000000] [<c0771af4>] (irqchip_init) from [<c074d7a8>] (init_IRQ+0x28/0x88)
> > [ 0.000000] [<c074d7a8>] (init_IRQ) from [<c074bb64>] (start_kernel+0x20c/0x3a4)
> > [ 0.000000] [<c074bb64>] (start_kernel) from [<00008078>] (0x8078)
> > [ 0.000000] ---[ end Kernel panic - not syncing: /soc/local_intc: unable to map local interrupt registers
> >
>
> But still getting this panic, your patches does not contain some
> defconfig, so I still try to figure out what I need to enable to get it
> working. Maybe it is some missing config entry which should be enabled.
>
> But, for me it looks like some devicetree issue, because of_iomem returns
> NULL, at [0]. Don't know what I am doing wrong.
That is the most likely cause, yes. You can try replacing it with an ioremap with a
hardcoded physical address to see if that works.
Arnd
next prev parent reply other threads:[~2015-12-21 23:11 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-16 23:55 [PATCH v2 0/8] Raspberry Pi 2 support Eric Anholt
2015-12-16 23:55 ` [PATCH v2 1/8] irq: bcm2836: Fix initialization of the LOCAL_IRQ_CNT*IRQ timers Eric Anholt
2015-12-16 23:55 ` [PATCH v2 2/8] irq: bcm2836: Add SMP support for the 2836 Eric Anholt
2015-12-17 5:17 ` Baruch Siach
2015-12-16 23:55 ` [PATCH v2 3/8] dt-bindings: Add root properties for Raspberry Pi 2 Eric Anholt
2015-12-19 4:18 ` Rob Herring
2015-12-16 23:55 ` [PATCH v2 4/8] ARM: bcm2835: Split the DT for peripherals from the DT for the CPU Eric Anholt
2015-12-18 10:00 ` Alexander Aring
2015-12-21 23:09 ` Eric Anholt
2015-12-16 23:55 ` [PATCH v2 5/8] ARM: bcm2835: Move the CPU/peripheral include out of common RPi DT Eric Anholt
2015-12-16 23:55 ` [PATCH v2 6/8] ARM: bcm2835: Add devicetree for bcm2836 and Raspberry Pi 2 B Eric Anholt
2015-12-22 10:11 ` Alexander Aring
2015-12-16 23:55 ` [PATCH v2 7/8] ARM: bcm2835: Add a compat string for bcm2836 machine probe Eric Anholt
2015-12-16 23:55 ` [PATCH v2 8/8] ARM: bcm2835: Add Kconfig support for bcm2836 Eric Anholt
2015-12-26 22:38 ` Eric Anholt
2016-01-03 21:53 ` Noralf Trønnes
2015-12-17 0:03 ` [PATCH v2 0/8] Raspberry Pi 2 support Arnd Bergmann
2015-12-17 0:37 ` Eric Anholt
2015-12-17 8:48 ` Stefan Wahren
2015-12-17 10:26 ` Arnd Bergmann
2015-12-18 10:08 ` Alexander Aring
2015-12-18 10:55 ` Alexander Aring
2015-12-20 22:11 ` Alexander Aring
2015-12-21 23:07 ` Eric Anholt
2015-12-22 14:26 ` Alexander Aring
2015-12-22 19:01 ` Eric Anholt
2015-12-26 21:38 ` Noralf Trønnes
2015-12-21 23:11 ` Arnd Bergmann [this message]
2015-12-22 14:20 ` Alexander Aring
2015-12-22 21:23 ` Arnd Bergmann
2015-12-25 0:01 ` Eric Anholt
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