Hi, I'm trying to get a new ASIC with an ARC770 core running with
openwrt, but I keep hitting the attempted to kill init problem, and have
run out of debugging ideas. I've tried building busybox statically linked.
I'm building a kernel elf with initramfs, and loading that via JTAG. I
can get console, and things seem to work up until the kernel passes
control to userspace. Devicetree and kernel log attached below.
I was wondering if anyone had this problem in the context of LEDE
(specifically on arc770), and what was done to resolve it.
Thanks,
Alex
# Appendix A: Relevant parts of devicetree
/include/ "skeleton.dtsi"
/ {
model = "adaptrum,anarion";
compatible = "snps,nsim";
#address-cells = <1>;
#size-cells = <1>;
interrupt-parent = <&core_intc>;
chosen {
bootargs = "earlycon debug console=ttyS0,115200n8";
stdout-path = "serial0:115200n8";
};
aliases {
serial0 = &uart0;
};
soc {
compatible = "simple-bus";
device_type = "soc";
#address-cells = <1>;
#size-cells = <1>;
ranges;
core_clk: core_clk {
#clock-cells = <0>;
compatible = "fixed-clock";
clock-frequency = <12000000>;
};
core_intc: interrupt-controller {
compatible = "snps,arc700-intc";
interrupt-controller;
#interrupt-cells = <1>;
};
uart0: serial@f2202100 {
compatible = "ns16550";
reg = <0xf2202100 0x20>;
interrupts = <8>;
reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <192000000>;
};
};
# Appendix B: Kernel failure log
[ 0.000000] Linux version 4.9.34+ (mrnuke@dev2.adaptrum) (gcc version
6.2.1 (LEDE GCC 6.2.1 r4561-ab3c551) ) #0 PREEMPT Sat Jul 15 01:31:46 2017
[ 0.000000] Memory @ 80000000 [256M]
[ 0.000000] OF: fdt:Machine model: adaptrum,anarion
[ 0.000000] earlycon: ns16550 at MMIO32 0xf2202100 (options '115200n8')
[ 0.000000] bootconsole [ns16550] enabled
[ 0.000000]
[ 0.000000] IDENTITY : ARCVER [0x35] ARCNUM [0x1] CHIPID [0x270f]
[ 0.000000] processor [0] : ARC 770 R4.11 (ARCompact ISA)
[ 0.000000] Timers : Timer0 Timer1
[ 0.000000] ISA Extn : mpy norm barrel-shift swap minmax swape
[ 0.000000] BPU : partial match, cache:256, Predict
Table:256
[ 0.000000] MMU [v3] : 8k PAGE, JTLB 256 (128x2), uDTLB 8, uITLB 4
[ 0.000000] I-Cache : 32K, 2way/set, 64B Line, VIPT aliasing
[ 0.000000] D-Cache : 32K, 4way/set, 64B Line, VIPT
[ 0.000000] Peripherals : 0xc0000000
[ 0.000000] Vector Table : 0x80006000
[ 0.000000] DEBUG : ActionPoint
[ 0.000000] OS ABI [v4] : 64-bit data any register aligned
[ 0.000000] On node 0 totalpages: 32768
[ 0.000000] free_area_init_node: node 0, pgdat 806a1e04, node_mem_map
8fee0000
[ 0.000000] Normal zone: 144 pages used for memmap
[ 0.000000] Normal zone: 0 pages reserved
[ 0.000000] Normal zone: 32768 pages, LIFO batch:7
[ 0.000000] pcpu-alloc: s0 r0 d32768 u32768 alloc=1*32768
[ 0.000000] pcpu-alloc: [0] 0
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on.
Total pages: 32624
[ 0.000000] Kernel command line: earlycon debug console=ttyS0,115200n8
[ 0.000000] PID hash table entries: 1024 (order: -1, 4096 bytes)
[ 0.000000] Dentry cache hash table entries: 32768 (order: 4, 131072
bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 3, 65536 bytes)
[ 0.000000] Memory: 253056K/262144K available (2366K kernel code,
100K rwdata, 704K rodata, 3608K init, 250K bss, 9088K reserved, 0K
cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] Preemptible hierarchical RCU implementation.
[ 0.000000] NR_IRQS:128
[ 0.000000] clocksource: ARC Timer1: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 159271703898 ns
[ 0.010000] Calibrating delay loop... 20.48 BogoMIPS (lpj=102400)
[ 0.150000] pid_max: default: 32768 minimum: 301
[ 0.160000] Mount-cache hash table entries: 2048 (order: 0, 8192 bytes)
[ 0.170000] Mountpoint-cache hash table entries: 2048 (order: 0, 8192
bytes)
[ 0.400000] clocksource: jiffies: mask: 0xffffffff max_cycles:
0xffffffff, max_idle_ns: 19112604462750000 ns
[ 0.410000] futex hash table entries: 256 (order: -2, 3072 bytes)
[ 0.480000] NET: Registered protocol family 16
[ 1.840000] pps_core: LinuxPPS API ver. 1 registered
[ 1.850000] pps_core: Software ver. 5.3.6 - Copyright 2005-2007
Rodolfo Giometti <giome...@linux.it>
[ 1.860000] PTP clock support registered
[ 2.020000] clocksource: Switched to clocksource ARC Timer1
[ 2.210000] NET: Registered protocol family 2
[ 2.290000] TCP established hash table entries: 2048 (order: 0, 8192
bytes)
[ 2.300000] TCP bind hash table entries: 2048 (order: 0, 8192 bytes)
[ 2.310000] TCP: Hash tables configured (established 2048 bind 2048)
[ 2.330000] UDP hash table entries: 512 (order: 0, 8192 bytes)
[ 2.340000] UDP-Lite hash table entries: 512 (order: 0, 8192 bytes)
[ 2.360000] NET: Registered protocol family 1
[ 2.550000] random: fast init done
[ 8.870000] workingset: timestamp_bits=30 max_order=15 bucket_order=0
[ 10.160000] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 10.170000] jffs2: version 2.2. (NAND) (SUMMARY) © 2001-2006 Red
Hat, Inc.
[ 11.290000] io scheduler noop registered
[ 11.300000] io scheduler deadline registered (default)
[ 11.400000] Serial: 8250/16550 driver, 4 ports, IRQ sharing disabled
[ 11.600000] console [ttyS0] disabled
[ 11.610000] f2202100.serial: ttyS0 at MMIO 0xf2202100 (irq = 8,
base_baud = 12000000) is a 16550
[ 11.630000] console [ttyS0] enabled
[ 11.630000] console [ttyS0] enabled
[ 11.640000] bootconsole [ns16550] disabled
[ 11.640000] bootconsole [ns16550] disabled
[ 11.790000] libphy: Fixed MDIO Bus: probed
[ 11.850000] stmmaceth f2014000.ethernet: no reset control found
[ 11.860000] stmmac - user ID: 0x10, Synopsys ID: 0x37
[ 11.870000] Ring mode enabled
[ 11.880000] DMA HW capability register supported[ 11.880000]
Enhanced/Alternate descriptors
[ 11.890000] Enabled extended descriptors
[ 11.890000] RX Checksum Offload Engine supported
[ 11.900000] COE Type 2
[ 11.900000] TX Checksum insertion supported
[ 11.910000] Wake-Up On Lan supported
[ 11.910000] Enable RX Mitigation via HW Watchdog Timer
[ 12.210000] libphy: stmmac: probed
[ 12.220000] eth%d: PHY ID 00221622 at 7 IRQ POLL (stmmac-0:07) active
[ 12.350000] sdhci: Secure Digital Host Controller Interface driver
[ 12.370000] sdhci: Copyright(c) Pierre Ossman
[ 12.370000] Synopsys Designware Multimedia Card Interface Driver
[ 12.400000] sdhci-pltfm: SDHCI platform and OF driver helper
[ 12.490000] NET: Registered protocol family 10
[ 12.590000] NET: Registered protocol family 17
[ 12.600000] 8021q: 802.1Q VLAN Support v1.8
[ 12.750000] Freeing unused kernel memory: 3608K (80008000 - 8038e000)
[ 12.760000] This architecture does not have kernel memory protection.
[ 12.890000] Kernel panic - not syncing: Attempted to kill init!
exitcode=0x00000004
[ 12.890000]
[ 12.890000] Rebooting in 1 seconds..[ 12.890000] Put your restart
handler here
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