Hey, so I wanted to try out LEDE today and decided to do an upgrade out of my working OpenWRT installation.
After I updated my router won't boot anymore and ends with a kernel panic every time. I have already tried to flash the U-Boot image from the latest snapshot since I've had a similar issue before when using an outdated version of U-Boot with OpenWRT 15.05.1. Here is the log it provides while booting:
ROM VER: 1.0.3
CFG 01
Read EEPROMX
X
U-Boot 2013.10-openwrt4 (Jul 31 2017 - 12:07:58) ARV752DPW22
Board: Arcadyan ARV752DPW22
SoC: Lantiq Danube-S v1.3
CPU: 333.333 MHz
IO: 166.667 MHz
BUS: 83.333 MHz
BOOT: NOR
DRAM: 64 MiB
Flash: 8 MiB
In: serial
Out: serial
Err: serial
Net: ltq-eth
Hit any key to stop autoboot: 0
## Booting kernel from Legacy Image at b0040000 ...
Image Name: MIPS LEDE Linux-4.4.71
Created: 2017-06-08 21:02:37 UTC
Image Type: MIPS Linux Kernel Image (lzma compressed)
Data Size: 1560641 Bytes = 1.5 MiB
Load Address: 80002000
Entry Point: 80002000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
Starting kernel ...
[ 0.000000] Linux version 4.4.71 (buildbot@builds-02.infra.lede-project.org) (gcc version 5.4.0 (LEDE GCC 5.4.0 r3103-1b51a49) ) #0 Wed Jun 7 19:24:41 2017
[ 0.000000] SoC: Danube rev 1.3
[ 0.000000] bootconsole [early0] enabled
[ 0.000000] CPU0 revision is: 00019641 (MIPS 24KEc)
[ 0.000000] MIPS: machine is ARV7510PW22 - Astoria Networks
[ 0.000000] Determined physical RAM map:
[ 0.000000] memory: 04000000 @ 00000000 (usable)
[ 0.000000] Initrd not found or empty - disabling initrd
[ 0.000000] Zone ranges:
[ 0.000000] Normal [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x0000000003ffffff]
[ 0.000000] Primary instruction cache 16kB, VIPT, 4-way, linesize 32 bytes.
[ 0.000000] Primary data cache 16kB, 4-way, VIPT, no aliases, linesize 32 bytes
[ 0.000000] Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
[ 0.000000] Kernel command line: console=ttyLTQ0,115200
[ 0.000000] PID hash table entries: 256 (order: -2, 1024 bytes)
[ 0.000000] Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.000000] Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
[ 0.000000] Writing ErrCtl register=00000000
[ 0.000000] Readback ErrCtl register=00000000
[ 0.000000] Memory: 58796K/65536K available (3879K kernel code, 160K rwdata, 620K rodata, 1212K init, 200K bss, 6740K reserved, 0K cma-reserved)
[ 0.000000] SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
[ 0.000000] NR_IRQS:256
[ 0.000000] CPU Clock: 333MHz
[ 0.000000] clocksource: MIPS: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 11467562657 ns
[ 0.000017] sched_clock: 32 bits at 166MHz, resolution 6ns, wraps every 12884901885ns
[ 0.007952] Calibrating delay loop... 221.18 BogoMIPS (lpj=442368)
[ 0.050595] pid_max: default: 32768 minimum: 301
[ 0.055554] Mount-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.062098] Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.078890] clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 7645041785100000 ns
[ 0.088586] futex hash table entries: 256 (order: -1, 3072 bytes)
[ 0.094837] pinctrl core: initialized pinctrl subsystem
[ 0.102286] NET: Registered protocol family 16
[ 0.114488] pinctrl-xway 1e100b10.pinmux: Init done
[ 0.121048] dma-xway 1e104100.dma: Init done - hw rev: 3, ports: 5, channels: 20
[ 0.181806] Can't analyze schedule() prologue at 80009038
[ 0.203005] PCI host bridge /fpi@10000000/pci@E105400 ranges:
[ 0.208702] MEM 0x0000000018000000..0x0000000019ffffff
[ 0.213972] IO 0x000000001ae00000..0x000000001affffff
[ 0.247367] usbcore: registered new interface driver usbfs
[ 0.253007] usbcore: registered new interface driver hub
[ 0.258430] usbcore: registered new device driver usb
[ 0.264120] PCI host bridge to bus 0000:00
[ 0.268170] pci_bus 0000:00: root bus resource [mem 0x18000000-0x19ffffff]
[ 0.275096] pci_bus 0000:00: root bus resource [io 0x1ae00000-0x1affffff]
[ 0.282034] pci_bus 0000:00: root bus resource [??? 0x00000000 flags 0x0]
[ 0.288886] pci_bus 0000:00: No busn resource found for root bus, will use [bus 00-ff]
[ 0.299953] pci 0000:00:0e.0: BAR 0: assigned [mem 0x18000000-0x1800ffff]
[ 0.306707] pci 0000:00:0f.2: BAR 0: assigned [mem 0x18010000-0x180100ff]
[ 0.313552] pci 0000:00:0f.0: BAR 4: assigned [io 0x1ae00000-0x1ae0001f]
[ 0.320409] pci 0000:00:0f.1: BAR 4: assigned [io 0x1ae00020-0x1ae0003f]
[ 0.328771] clocksource: Switched to clocksource MIPS
[ 0.336426] NET: Registered protocol family 2
[ 0.342488] TCP established hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.349452] TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
[ 0.355838] TCP: Hash tables configured (established 1024 bind 1024)
[ 0.362430] UDP hash table entries: 256 (order: 0, 4096 bytes)
[ 0.368250] UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)
[ 0.374959] NET: Registered protocol family 1
[ 0.379393] PCI: Enabling device 0000:00:0f.0 (0000 -> 0001)
[ 0.385056] PCI: Enabling device 0000:00:0f.1 (0000 -> 0001)
[ 0.390776] PCI: Enabling device 0000:00:0f.2 (0000 -> 0002)
[ 0.410644] gptu: totally 6 16-bit timers/counters
[ 0.415607] gptu: misc_register on minor 63
[ 0.419747] gptu: succeeded to request irq 126
[ 0.424249] gptu: succeeded to request irq 127
[ 0.428817] gptu: succeeded to request irq 128
[ 0.433271] gptu: succeeded to request irq 129
[ 0.437789] gptu: succeeded to request irq 130
[ 0.442303] gptu: succeeded to request irq 131
[ 0.453592] lantiq,vmmc 1f103000.vmmc: requested GPIO 489
[ 0.458943] lantiq,vmmc 1f103000.vmmc: reserved 1MB at 0x03a00000
[ 0.466705] Crashlog allocated RAM at address 0x3f00000
[ 0.510688] squashfs: version 4.0 (2009/01/31) Phillip Lougher
[ 0.516455] jffs2: version 2.2 (NAND) (SUMMARY) (LZMA) (RTIME) (CMODE_PRIORITY) (c) 2001-2006 Red Hat, Inc.
[ 0.533233] io scheduler noop registered
[ 0.537094] io scheduler deadline registered (default)
[ 0.543469] 1e100c00.serial: ttyLTQ0 at MMIO 0x1e100c00 (irq = 112, base_baud = 0) is a lantiq,asc
[ 0.552433] console [ttyLTQ0] enabled
[ 0.552433] console [ttyLTQ0] enabled
[ 0.559540] bootconsole [early0] disabled
[ 0.559540] bootconsole [early0] disabled
[ 0.568943] lantiq nor flash device: 01000000 at 10000000
[ 0.573169] ltq_nor: Found 1 x16 devices at 0x0 in 16-bit bank. Manufacturer ID 0x0000c2 Chip ID 0x0022cb
[ 0.582239] Amd/Fujitsu Extended Query Table at 0x0040
[ 0.587171] Amd/Fujitsu Extended Query version 1.1.
[ 0.592039] number of CFI chips: 1
[ 0.595385] 4 ofpart partitions found on MTD device ltq_nor
[ 0.600739] Creating 4 MTD partitions on "ltq_nor":
[ 0.605470] 0x000000000000-0x000000040000 : "uboot"
[ 0.616945] 0x000000040000-0x000000060000 : "uboot_env"
[ 0.624445] 0x000000060000-0x000000fe0000 : "firmware"
[ 0.628133] mtd: partition "firmware" extends beyond the end of device "ltq_nor" -- size truncated to 0x7a0000
[ 0.738464] 0x000000fe0000-0x000001000000 : "board_config"
[ 0.742461] mtd: partition "board_config" is out of reach -- disabled
[ 0.765100] switch0: Atheros AR8216 rev. 1 switch registered on 1e180000.etop-ff
[ 0.802327] libphy: ltq_mii: probed
[ 0.842129] eth0: attached PHY [Atheros AR8216/AR8236/AR8316] (phy_addr=1e180000.etop-ff:00, irq=-1)
[ 0.851817] wdt 1f8803f0.watchdog: Init done
[ 0.859220] NET: Registered protocol family 10
[ 0.873307] NET: Registered protocol family 17
[ 0.876374] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[ 0.888564] 8021q: 802.1Q VLAN Support v1.8
[ 0.907605] VFS: Cannot open root device "(null)" or unknown-block(0,0): error -6
[ 0.913573] Please append a correct "root=" boot option; here are the available partitions:
[ 0.921722] 1f00 256 mtdblock0 (driver?)
[ 0.926503] 1f01 128 mtdblock1 (driver?)
[ 0.931403] 1f02 7808 mtdblock2 (driver?)
[ 0.936293] Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
[ 0.946280] Rebooting in 1 seconds..`