I was able to get debug output from the failed kernel boot by adding the "earlycon" bootarg:
Marvell>> setenv bootargs earlycon console=ttyS0,115200 root=/dev/ram initrd=0xa00000,0x900000 ramdisk=34816 coherent_pool=1M Marvell>> boot Send Cmd : 0x68 to UART1 ## Booting image at 00800000 ... Image Name: kernel 4.11.0-0.bpo.1-marvell Created: 2017-07-30 18:55:56 UTC Image Type: ARM Linux Kernel Image (uncompressed) Data Size: 2076472 Bytes = 2 MB Load Address: 00008000 Entry Point: 00008000 Verifying Checksum ... OK OK Starting kernel ... Uncompressing Linux... done, booting the kernel. [ 0.000000] Booting Linux on physical CPU 0x0 [ 0.000000] Linux version 4.11.0-0.bpo.1-marvell (debian-kernel@lists.debian.org) (gcc version 6.3.0 20170516 (Debian 6.3.0-18) ) #1 Debian 4.11.6-1~bpo9+1 (2017-07-09) [ 0.000000] CPU: Feroceon 88FR131 [56251311] revision 1 (ARMv5TE), cr=0005397f [ 0.000000] CPU: VIVT data cache, VIVT instruction cache [ 0.000000] OF: fdt: Machine model: QNAP TS219 family [ 0.000000] earlycon: ns16550a0 at MMIO 0xf1012000 (options '') [ 0.000000] bootconsole [ns16550a0] enabled [ 0.000000] Memory policy: Data cache writeback [ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048 [ 0.000000] Kernel command line: earlycon console=ttyS0,115200 root=/dev/ram initrd=0xa00000,0x900000 ramdisk=34816 coherent_pool=1M [ 0.000000] PID hash table entries: 2048 (order: 1, 8192 bytes) [ 0.000000] Dentry cache hash table entries: 65536 (order: 6, 262144 bytes) [ 0.000000] Inode-cache hash table entries: 32768 (order: 5, 131072 bytes) [ 0.000000] Memory: 502648K/524288K available (4096K kernel code, 398K rwdata, 1132K rodata, 1024K init, 248K bss, 21640K reserved, 0K cma-reserved, 0K highmem) [ 0.000000] Virtual kernel memory layout: [ 0.000000] vector : 0xffff0000 - 0xffff1000 ( 4 kB) [ 0.000000] fixmap : 0xffc00000 - 0xfff00000 (3072 kB) [ 0.000000] vmalloc : 0xe0800000 - 0xff800000 ( 496 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 : 0xc0008000 - 0xc0500000 (5088 kB) [ 0.000000] .init : 0xc0700000 - 0xc0800000 (1024 kB) [ 0.000000] .data : 0xc0800000 - 0xc0863940 ( 399 kB) [ 0.000000] .bss : 0xc0863940 - 0xc08a1a20 ( 249 kB) [ 0.000000] NR_IRQS:16 nr_irqs:16 16 [ 0.000000] clocksource: orion_clocksource: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 9556302233 ns [ 0.000006] sched_clock: 32 bits at 200MHz, resolution 5ns, wraps every 10737418237ns [ 0.008120] Console: colour dummy device 80x30 [ 0.012582] Calibrating delay loop... 1974.27 BogoMIPS (lpj=3948544) [ 0.034147] pid_max: default: 32768 minimum: 301 [ 0.038878] Security Framework initialized [ 0.042982] Yama: disabled by default; enable with sysctl kernel.yama.* [ 0.049673] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.056280] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes) [ 0.063979] CPU: Testing write buffer coherency: ok [ 0.068919] ftrace: allocating 17111 entries in 34 pages [ 0.096090] Setting up static identity map for 0x100000 - 0x10003c [ 0.102442] mvebu-soc-id: MVEBU SoC ID=0x6282, Rev=0x1 [ 0.109175] devtmpfs: initialized [ 0.114763] VFP support v0.3: not present [ 0.118905] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns [ 0.128630] futex hash table entries: 256 (order: -1, 3072 bytes) [ 0.134879] pinctrl core: initialized pinctrl subsystem [ 0.140845] NET: Registered protocol family 16 [ 0.146052] DMA: preallocated 1024 KiB pool for atomic coherent allocations [ 0.153770] cpuidle: using governor ladder [ 0.157881] cpuidle: using governor menu [ 0.162020] Feroceon L2: Enabling L2 [ 0.165627] Feroceon L2: Cache support initialised. [ 0.170662] [Firmware Info]: /ocp@f1000000/ethernet-controller@72000/ethernet0-port@0: local-mac-address is not set [ 0.183533] No ATAGs? [ 0.186478] clocksource: Switched to clocksource orion_clocksource [ 0.209676] VFS: Disk quotas dquot_6.6.0 [ 0.213668] VFS: Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) [ 0.225645] NET: Registered protocol family 2 [ 0.230581] TCP established hash table entries: 4096 (order: 2, 16384 bytes) [ 0.237651] TCP bind hash table entries: 4096 (order: 2, 16384 bytes) [ 0.244118] TCP: Hash tables configured (established 4096 bind 4096) [ 0.250559] UDP hash table entries: 256 (order: 0, 4096 bytes) [ 0.256390] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes) [ 0.262750] NET: Registered protocol family 1 [ 0.267280] Unpacking initramfs... [ 0.270680] Initramfs unpacking failed: junk in compressed archive [ 0.304469] Freeing initrd memory: 9216K [ 0.308791] audit: initializing netlink subsys (disabled) [ 0.314507] audit: type=2000 audit(0.264:1): state=initialized audit_enabled=0 res=1 [ 0.322241] workingset: timestamp_bits=30 max_order=17 bucket_order=0 [ 0.328728] zbud: loaded [ 0.332709] Block layer SCSI generic (bsg) driver version 0.4 loaded (major 251) [ 0.340185] io scheduler noop registered [ 0.344152] io scheduler cfq registered (default) [ 0.349547] Serial: 8250/16550 driver, 2 ports, IRQ sharing disabled [ 0.356757] libphy: Fixed MDIO Bus: probed [ 0.360995] i2c /dev entries driver [ 0.364729] kirkwood-cpufreq kirkwood-cpufreq: Unable to get cpuclk [ 0.370996] kirkwood-cpufreq: probe of kirkwood-cpufreq failed with error -22 [ 0.378254] ledtrig-cpu: registered to indicate activity on CPUs [ 0.384848] registered taskstats version 1 [ 0.388973] zswap: loaded using pool lzo/zbud [ 0.393986] hctosys: unable to open rtc device (rtc0) [ 1.106495] random: fast init done [ 3.087516] Unable to handle kernel paging request at virtual address e0000004 [ 3.094706] pgd = c0004000 [ 3.097391] [e0000004] *pgd=00000000 [ 3.100948] Internal error: Oops: 5 [#1] ARM [ 3.105194] Modules linked in: [ 3.108230] CPU: 0 PID: 1 Comm: swapper Not tainted 4.11.0-0.bpo.1-marvell #1 Debian 4.11.6-1~bpo9+1 [ 3.117307] Hardware name: Marvell Kirkwood (Flattened Device Tree) [ 3.123537] task: df43f6a0 task.stack: df4a0000 [ 3.128043] PC is at crc32_be+0xac/0x160 [ 3.131943] LR is at 0xe0000000 [ 3.135064] pc : [<c03149e0>] lr : [<e0000000>] psr: 80000053 [ 3.135064] sp : df4a1ee0 ip : 00000007 fp : 00000000 [ 3.146476] r10: c0730838 r9 : 00000000 r8 : c0863940 [ 3.151669] r7 : 00000000 r6 : bfafa168 r5 : b2d5e10f r4 : c0a5c3b0 [ 3.158158] r3 : c052b470 r2 : b184c190 r1 : f0defde0 r0 : 0827764a [ 3.164647] Flags: Nzcv IRQs on FIQs off Mode SVC_32 ISA ARM Segment none [ 3.171826] Control: 0005397f Table: 00004000 DAC: 00000053 [ 3.177537] Process swapper (pid: 1, stack limit = 0xdf4a0190) [ 3.183334] Stack: (0xdf4a1ee0 to 0xdf4a2000) [ 3.187667] 1ee0: c0a5c3b0 f0defde7 c089db70 c0730834 c0863940 c0729144 c0729114 c080302c [ 3.195806] 1f00: ffffe000 c0101868 c0501d14 c080302c 00000011 c0863900 00000000 c0132ae0 [ 3.203936] 1f20: dfffee53 dfffee61 0000003a c0132bec c088a0d0 c01424f0 c061a0a4 0000003a [ 3.212065] 1f40: 00000007 00000007 c061a52c c061a52c 00000000 6692af0e 0000003a 00000008 [ 3.220196] 1f60: 0000003a c0863940 c0730834 c0863940 c0749f88 c0700e84 00000007 00000007 [ 3.228326] 1f80: 00000000 c07005b8 00000000 c04bb468 00000000 00000000 00000000 00000000 [ 3.236456] 1fa0: 00000000 c04bb478 00000000 c0107610 00000000 00000000 00000000 00000000 [ 3.244586] 1fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 3.252716] 1fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000002 [ 3.260860] [<c03149e0>] (crc32_be) from [<c0729144>] (of_fdt_raw_init+0x30/0x78) [ 3.268308] [<c0729144>] (of_fdt_raw_init) from [<c0101868>] (do_one_initcall+0x14c/0x180) [ 3.276534] [<c0101868>] (do_one_initcall) from [<c0700e84>] (kernel_init_freeable+0x1c8/0x20c) [ 3.285188] [<c0700e84>] (kernel_init_freeable) from [<c04bb478>] (kernel_init+0x10/0x10c) [ 3.293414] [<c04bb478>] (kernel_init) from [<c0107610>] (ret_from_fork+0x14/0x24) [ 3.300945] Code: e0230420 1afffff7 ebff8806 e8bd81f0 (e59e6004) [ 3.307002] ---[ end trace 6cbbaa91fcb8bad3 ]--- [ 3.311688] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 3.311688] [ 3.320775] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 3.320775] [ 53.658504] random: crng init done The error appears to be: [ 3.087516] Unable to handle kernel paging request at virtual address e0000004 [ 3.094706] pgd = c0004000 [ 3.097391] [e0000004] *pgd=00000000 [ 3.100948] Internal error: Oops: 5 [#1] ARM
