Press SPACE to abort autoboot in 2 seconds
switch to partitions #0, OK
mmc0 is current device
SD/MMC found on device 0
** Unable to read file boot.scr **
** Unable to read file uEnv.txt **
switch to partitions #0, OK
mmc0 is current device
Scanning mmc 0:1...
reading /am335x-boneblack.dtb
35930 bytes read in 9 ms (3.8 MiB/s)
Found EFI removable media binary efi/boot/bootarm.efi
Scanning disks on usb...
Scanning disks on mmc...
MMC Device 2 not found
MMC Device 3 not found
Found 6 disks
reading efi/boot/bootarm.efi
76528 bytes read in 14 ms (5.2 MiB/s)
## Starting EFI application at 82000000 ...
>> OpenBSD/armv7 BOOTARM 1.0
boot>  
booting sd0a:/bsd: 4535443+206344+562616 [277544+90+282224+244902]=0x5d8520

OpenBSD/armv7 booting ...
arg0 0xc08d8520 arg1 0xe05 arg2 0x88000000
Allocating page tables
freestart = 0x808d9000, free_pages = 128807 (0x0001f727)
IRQ stack: p0x80907000 v0xc0907000
ABT stack: p0x80908000 v0xc0908000
UND stack: p0x80909000 v0xc0909000
SVC stack: p0x8090a000 v0xc090a000
Creating L1 page table at 0x808dc000
Mapping kernel
Constructing L2 page tables
undefined page pmap [ using 805216 bytes of bsd ELF symbol table ]
board type: 3589
Copyright (c) 1982, 1986, 1989, 1991, 1993
	The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2018 OpenBSD. All rights reserved.  https://www.OpenBSD.org

OpenBSD 6.2-current (GENERIC) #1: Sun Jan 28 16:48:36 CST 2018
    root@beagle3.east.rtk0.net:/usr/src/sys/arch/armv7/compile/GENERIC
real mem  = 536870912 (512MB)
avail mem = 516878336 (492MB)
Fatal kernel mode data abort: 'Alignment fault'
trapframe: 0xc090bf38
DFSR=00000001, DFAR=c0733493, spsr=20000193
r0 =c0733493, r1 =00000800, r2 =c07efcdc, r3 =c073b234
r4 =c07acce0, r5 =00000005, r6 =00000007, r7 =00000006
r8 =c07d3288, r9 =00000332, r10=0000019a, r11=c090bfa8
r12=0000000b, ssp=c090bf8c, slr=c05da2e4, pc =c05d8f50

Stopped at      add_entropy_words+0x5c: ldr     r8, [r0], #0x004
ddb> show registers
spsr          0x20000193
r0            0xc0733493        ieee80211_mira_valid_tx_mcs.max_mcs+0xf8b
r1                 0x800        fiqvector+0x7e4
r2            0xc07efcdc        entropy_add_ptr
r3            0xc073b234        add_entropy_words.twist_table
r4            0xc07acce0        entropy_pool
r5                   0x5
r6                   0x7
r7                   0x6
r8            0xc07d3288        cpu_info_primary
r9                 0x332        fiqvector+0x316
r10                0x19a        fiqvector+0x17e
r11           0xc090bfa8        _bss_end__+0xf83e8
r12                  0xb
usr_sp                 0
usr_lr                 0
svc_sp        0xc090bf8c        _bss_end__+0xf83cc
svc_lr        0xc05da2e4        random_start+0x8c
pc            0xc05d8f50        add_entropy_words+0x5c
und_sp        0xc090a000        _bss_end__+0xf6440
abt_sp        0xc0909000        _bss_end__+0xf5440
irq_sp        0xc0908000        _bss_end__+0xf4440
add_entropy_words+0x5c: ldr     r8, [r0], #0x004