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Date: Tue, 7 Apr 2015 14:42:09 +0200
From: Andrew Lunn <andrew@lunn.ch>
To: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: linux-arm-kernel@lists.infradead.org,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: not syncing: Attempted to kill init! exitcode=0x00000004 ?
Message-ID: <20150407124209.GA12633@lunn.ch>
References: <CAK7LNATT8cJoQh+7ZEyUXgMtL0OSYg+69t8wcuNSk+SN+Rwf2g@mail.gmail.com>
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On Tue, Apr 07, 2015 at 12:34:30PM +0900, Masahiro Yamada wrote:
> Hello experts,
> I hope this is the correct ML to ask this question.
> 
> I am struggling to port Linux-4.0-rc7 onto my SoC/board,
> based on ARM cortex-A9 (single CPU), but the kernel fails to boot
> with the error:
> "not syncing: Attempted to kill init! exitcode=0x00000004"
> 
> 
> I want to use NS16550-compatible UART, Global Timer, and GIC.
> I wrote a simple device tree source for my own board like this:
> 
> ------------------>8------------------------------
> /dts-v1/;
> /include/ "skeleton.dtsi"
> 
> / {
>         compatible = "socionext,ph1-ld4";
> 
>         memory {
>                 device_type = "memory";
>                 reg = <0x80000000 0x20000000>;
>         };
> 
>         chosen {
>                 bootargs = "root=/dev/ram0 console=ttyS0,115200";
>         };
> 
>         aliases {
>                 serial0 = &uart0;
>         };
> 
>         cpus {
>                 #size-cells = <0>;
>                 #address-cells = <1>;
> 
>                 cpu@0 {
>                         device_type = "cpu";
>                         compatible = "arm,cortex-a9";
>                         reg = <0>;
>                 };
>         };
> 
>         clocks {
> [    0.000000] Virtual kernel memory layout:
> [    0.000000]     vector  : 0xffff0000 - 0xffff1000   (   4 kB)
> [    0.000000]     fixmap  : 0xffc00000 - 0xfff00000   (3072 kB)
> [    0.000000]     vmalloc : 0xe0800000 - 0xff000000   ( 488 MB)
> [    0.000000]     lowmem  : 0xc0000000 - 0xe0000000   ( 512 MB)
> [    0.000000]     pkmap   : 0xbfe00000 - 0xc0000000   (   2 MB)
> [    0.000000]     modules : 0xbf000000 - 0xbfe00000   (  14 MB)
> [    0.000000]       .text : 0xc0208000 - 0xc0d03b7c   (11247 kB)
> [    0.000000]       .init : 0xc0d04000 - 0xc0dce000   ( 808 kB)
> [    0.000000]       .data : 0xc0dce000 - 0xc0ecbde0   (1016 kB)
> [    0.000000]        .bss : 0xc0ecbde0 - 0xc0f1aee8   ( 317 kB)
> [    0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
> [    0.000000] Hierarchical RCU implementation.
> [    0.000000]  Additional per-CPU info printed with stalls.
> [    0.000000]  RCU restricting CPUs from NR_CPUS=16 to nr_cpu_ids=1.
> [    0.000000] RCU: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=1
> [    0.000000] NR_IRQS:16 nr_irqs:16 16
> [    0.000000] GIC CPU mask not found - kernel will fail to boot.
> [    0.000000] GIC CPU mask not found - kernel will fail to boot.

I assume you have seen this, have taken a deeper look, and know it is
not your issue?

    Andrew