AC88 Using 384.9, Crash?

[Elmer]

Browsing the internet when all the sudden there was a crash. I'm not a very good troubleshooter, but it appears it was the RT-AC88U router (384.9 firmware). It was happily handling dnsmasq requests until the mysimplelink (blink camera) request:

Feb 15 09:00:22 dnsmasq-dhcp[1132]: DHCPDISCOVER(br0) 58:c3:8b:67:75:9c
Feb 15 09:00:22 dnsmasq-dhcp[1132]: DHCPOFFER(br0) 192.168.1.234 58:c3:8b:67:75:9c
Feb 15 09:00:22 dnsmasq-dhcp[1132]: DHCPREQUEST(br0) 192.168.1.234 58:c3:8b:67:75:9c
Feb 15 09:00:22 dnsmasq-dhcp[1132]: DHCPACK(br0) 192.168.1.234 58:c3:8b:67:75:9c android-b53b40ae44727e11
Feb 15 09:00:56 dnsmasq-dhcp[1132]: DHCPREQUEST(br0) 192.168.1.239 02:ff:60:5b:ca:e6
Feb 15 09:01:40 dnsmasq-dhcp[1132]: DHCPDISCOVER(br0) f4:b8:5e:fb:20:b4
Feb 15 09:01:40 dnsmasq-dhcp[1132]: DHCPOFFER(br0) 192.168.1.242 f4:b8:5e:fb:20:b4
Feb 15 09:01:40 dnsmasq-dhcp[1132]: DHCPREQUEST(br0) 192.168.1.242 f4:b8:5e:fb:20:b4
Feb 15 09:01:40 dnsmasq-dhcp[1132]: DHCPACK(br0) 192.168.1.242 f4:b8:5e:fb:20:b4 F4B85EFB20B4-mysimplelink
Feb 15 09:01:53 kernel: br0: port 1(vlan1) neighbor 8000.88:dc:96:5c:fd:92 lost
Feb 15 09:01:53 kernel: br0: topology change detected, propagating
Feb 15 09:01:19 syslogd started: BusyBox v1.25.1
Feb 15 09:01:19 kernel: klogd started: BusyBox v1.25.1 (2019-02-02 13:18:13 EST)
Feb 15 09:01:19 kernel: Linux version 2.6.36.4brcmarm (merlin@ubuntu-dev) (gcc version 4.5.3 (Buildroot 2012.02) ) #1 SMP PREEMPT Sat Feb 2 13:28:19 EST 2019
Feb 15 09:01:19 kernel: CPU: ARMv7 Processor [413fc090] revision 0 (ARMv7), cr=10c53c7f
Feb 15 09:01:19 kernel: CPU: VIPT nonaliasing data cache, VIPT nonaliasing instruction cache
Feb 15 09:01:19 kernel: Machine: Northstar Prototype
Feb 15 09:01:19 kernel: Ignoring unrecognised tag 0x00000000
Feb 15 09:01:19 kernel: bootconsole [earlycon0] enabled
Feb 15 09:01:19 kernel: Memory policy: ECC disabled, Data cache writealloc
Feb 15 09:01:19 kernel: MPCORE found at 19020000
Feb 15 09:01:19 kernel: PERCPU: Embedded 7 pages/cpu @88407000 s6272 r8192 d14208 u65536
Feb 15 09:01:19 kernel: pcpu-alloc: s6272 r8192 d14208 u65536 alloc=16*4096
Feb 15 09:01:19 kernel: pcpu-alloc: [0] 0 [0] 1
Feb 15 09:01:19 kernel: Built 1 zonelists in Zone order, mobility grouping on. Total pages: 130048
Feb 15 09:01:19 kernel: Kernel command line: root=/dev/mtdblock2 console=ttyS0,115200 init=/sbin/preinit earlyprintk debug
Feb 15 09:01:19 kernel: PID hash table entries: 2048 (order: 1, 8192 bytes)
Feb 15 09:01:19 kernel: Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Feb 15 09:01:19 kernel: Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Feb 15 09:01:19 kernel: Memory: 512MB = 512MB total
Feb 15 09:01:19 kernel: Memory: 514896k/514896k available, 9392k reserved, 0K highmem
Feb 15 09:01:19 kernel: Virtual kernel memory layout:
Feb 15 09:01:19 kernel: vector : 0xffff0000 - 0xffff1000 ( 4 kB)
Feb 15 09:01:19 kernel: fixmap : 0xfff00000 - 0xfffe0000 ( 896 kB)
Feb 15 09:01:19 kernel: DMA : 0xf7e00000 - 0xffe00000 ( 128 MB)
Feb 15 09:01:19 kernel: vmalloc : 0xa0800000 - 0xf0000000 (1272 MB)
Feb 15 09:01:19 kernel: lowmem : 0x80000000 - 0xa0000000 ( 512 MB)
Feb 15 09:01:19 kernel: modules : 0x7f000000 - 0x80000000 ( 16 MB)
Feb 15 09:01:19 kernel: .init : 0x80008000 - 0x80050000 ( 288 kB)
Feb 15 09:01:19 kernel: .text : 0x80050000 - 0x80410000 (3840 kB)
Feb 15 09:01:19 kernel: .data : 0x8042a000 - 0x8044f400 ( 149 kB)
Feb 15 09:01:19 kernel: SLUB: Genslabs=11, HWalign=32, Order=0-3, MinObjects=0, CPUs=2, Nodes=1
Feb 15 09:01:19 kernel: * Invalid signature of oopsbuf: 07-8F-BC-B5-C9-56-87-96 (len 329757147)
Feb 15 09:01:19 kernel: Hierarchical RCU implementation.
Feb 15 09:01:19 kernel: RCU-based detection of stalled CPUs is disabled.
Feb 15 09:01:19 kernel: Verbose stalled-CPUs detection is disabled.
Feb 15 09:01:19 kernel: NR_IRQS:256
Feb 15 09:01:19 kernel: MPCORE GIC init
Feb 15 09:01:19 kernel: External imprecise Data abort at addr=0x0, fsr=0x1c06, pc=0x8000f9d8 lr=0x8000f9cc ignored.
Feb 15 09:01:19 kernel: MPCORE Global Timer Clock 700000000Hz
Feb 15 09:01:19 kernel: Calibrating delay loop... 2798.38 BogoMIPS (lpj=13991936)