root@etherknife-debug:~ # etherswitchcfg
etherswitch0: VLAN mode: DOT1Q
port0:
        pvid: 0
        flags=41<CPUPORT,INGRESS>
        media: Ethernet 1000baseT <full-duplex>
        status: active
port1:
        pvid: 0
        flags=40<INGRESS>
        media: Ethernet autoselect (100baseTX <full-duplex>)
        status: active
Fatal kernel mode data abort: 'Translation Fault (L2)' on read
trapframe: 0xd10eeaf0
FSR=00000007, FAR=0000004c, spsr=20000013
r0 =00000000, r1 =00000002, r2 =c0661624, r3 =c0843414
r4 =d10eed28, r5 =00000006, r6 =00000019, r7 =d1275000
r8 =d199a000, r9 =d1adc410, r10=c0446904, r11=d10eeb90
r12=c0877034, ssp=d10eeb80, slr=c0661664, pc =c0307b28

panic: Fatal abort
cpuid = 0
time = 1606674844
KDB: stack backtrace:
db_trace_self() at db_trace_self
	 pc = 0xc05913d8  lr = 0xc007aa84 (db_trace_self_wrapper+0x30)
	 sp = 0xd10ee8c8  fp = 0xd10ee9e0
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
	 pc = 0xc007aa84  lr = 0xc02cbddc (vpanic+0x170)
	 sp = 0xd10ee9e8  fp = 0xd10eea08
	 r4 = 0x00000100  r5 = 0xd10eea1c
	 r6 = 0xc07254d3  r7 = 0x00000000
vpanic() at vpanic+0x170
	 pc = 0xc02cbddc  lr = 0xc02cbb8c (doadump)
	 sp = 0xd10eea10  fp = 0xd10eea14
	 r4 = 0xd10eeaf0  r5 = 0x00000013
	 r6 = 0x0000004c  r7 = 0x00000007
	 r8 = 0x00000007  r9 = 0xd199a000
	r10 = 0x0000004c
doadump() at doadump
	 pc = 0xc02cbb8c  lr = 0xc05b3a80 (abort_align)
	 sp = 0xd10eea1c  fp = 0xd10eea48
	 r4 = 0x0000004c  r5 = 0xd10eea14
	 r6 = 0xc02cbb8c r10 = 0xd10eea1c
abort_align() at abort_align
	 pc = 0xc05b3a80  lr = 0xc05b3600 (abort_handler+0x330)
	 sp = 0xd10eea50  fp = 0xd10eeae8
	 r4 = 0x00000013  r5 = 0x0000004c
abort_handler() at abort_handler+0x330
	 pc = 0xc05b3600  lr = 0xc0593cf8 (exception_exit)
	 sp = 0xd10eeaf0  fp = 0xd10eeb90
	 r4 = 0xd10eed28  r5 = 0x00000006
	 r6 = 0x00000019  r7 = 0xd1275000
	 r8 = 0xd199a000  r9 = 0xd1adc410
	r10 = 0xc0446904
exception_exit() at exception_exit
	 pc = 0xc0593cf8  lr = 0xc0661664 (cpsw_getport+0x40)
	 sp = 0xd10eeb80  fp = 0xd10eeb90
	 r0 = 0x00000000  r1 = 0x00000002
	 r2 = 0xc0661624  r3 = 0xc0843414
	 r4 = 0xd10eed28  r5 = 0x00000006
	 r6 = 0x00000019  r7 = 0xd1275000
	 r8 = 0xd199a000  r9 = 0xd1adc410
	r10 = 0xc0446904 r12 = 0xc0877034
device_get_softc() at device_get_softc
	 pc = 0xc0307b28  lr = 0xc0661664 (cpsw_getport+0x40)
	 sp = 0xd10eeb80  fp = 0xd10eeb90
cpsw_getport() at cpsw_getport+0x40
	 pc = 0xc0661664  lr = 0xc008e6f0 (etherswitchioctl+0x62c)
	 sp = 0xd10eeb98  fp = 0xd10eebc0
	 r4 = 0xd124ce80  r5 = 0xd10eed28
	 r6 = 0x00000019  r7 = 0xc0843414
etherswitchioctl() at etherswitchioctl+0x62c
	 pc = 0xc008e6f0  lr = 0xc01ce0fc (devfs_ioctl+0xcc)
	 sp = 0xd10eebc8  fp = 0xd10eebf0
	 r4 = 0xd1b64be0  r5 = 0xc0446904
	 r6 = 0xd10eebf8  r7 = 0xc008e0c4
	 r8 = 0xd199a000 r10 = 0xc0446904
devfs_ioctl() at devfs_ioctl+0xcc
	 pc = 0xc01ce0fc  lr = 0xc03c6540 (vn_ioctl+0x12c)
	 sp = 0xd10eebf8  fp = 0xd10eecc0
	 r4 = 0xd1b64be0  r5 = 0x00000019
	 r6 = 0xd19c8000  r7 = 0xd1b54a00
	 r8 = 0xd10eed28  r9 = 0xd1adc410
vn_ioctl() at vn_ioctl+0x12c
	 pc = 0xc03c6540  lr = 0xc01ce758 (devfs_ioctl_f+0x2c)
	 sp = 0xd10eecc8  fp = 0xd10eece0
	 r4 = 0xd199a000  r5 = 0xc03c6414
	 r6 = 0x00000000  r7 = 0x00000000
	 r8 = 0xd19c8000 r10 = 0xc0446904
devfs_ioctl_f() at devfs_ioctl_f+0x2c
	 pc = 0xc01ce758  lr = 0xc0343688 (kern_ioctl+0x324)
	 sp = 0xd10eece8  fp = 0xd10eed20
	 r4 = 0xc01ce72c  r5 = 0xd19c8000
	 r6 = 0x00000001 r10 = 0xc0446904
kern_ioctl() at kern_ioctl+0x324
	 pc = 0xc0343688  lr = 0xc0343318 (sys_ioctl+0xf8)
	 sp = 0xd10eed28  fp = 0xd10eedc8
	 r4 = 0x00000044  r5 = 0xd199a2b0
	 r6 = 0xc0446904  r7 = 0x00000000
	 r8 = 0xd10eed28  r9 = 0xd199a000
	r10 = 0x40000000
sys_ioctl() at sys_ioctl+0xf8
	 pc = 0xc0343318  lr = 0xc05b2e20 (swi_handler+0x15c)
	 sp = 0xd10eedd0  fp = 0xd10eee40
	 r4 = 0xd199a000  r5 = 0x00000001
	 r6 = 0xc086cf9c  r7 = 0x00000000
	 r8 = 0x00000000  r9 = 0xd199a2a8
	r10 = 0xd1936388
swi_handler() at swi_handler+0x15c
	 pc = 0xc05b2e20  lr = 0xc0593c88 (swi_exit)
	 sp = 0xd10eee48  fp = 0xbfbfec00
	 r4 = 0xbfbfec28  r5 = 0xbfbfeb9c
	 r6 = 0x00000002  r7 = 0x00000036
	 r8 = 0xbfbfe79c  r9 = 0x00000000
	r10 = 0x000119ac
swi_exit() at swi_exit
	 pc = 0xc0593c88  lr = 0xc0593c88 (swi_exit)
	 sp = 0xd10eee48  fp = 0xbfbfec00
KDB: enter: panic
[ thread pid 1249 tid 100072 ]
Stopped at      kdb_enter+0x58: ldrb    r15, [r15, r15, ror r15]!