dfrig2489:   hw: cmd=0x20 feature=0x00 count=4 lba=33554428 bytecount=2048 flags=0x2
ad0: LSI (v3) check1 failed
dfrig2489:   hw: cmd=0x20 feature=0x00 count=1 lba=33554431 bytecount=512 flags=0x2
ad0: LSI (v2) check1 failed
dfrig2489:   hw: cmd=0x20 feature=0x00 count=4 lba=33554241 bytecount=2048 flags=0x2
ad0: FreeBSD check1 failed
ad0: 16384MB <DF2489 SANE GEOMETRY FW000001> at ata0-master PIO4
ad0: 33554432 sectors [33288C/16H/63S] 16 sectors/interrupt 1 depth queue
dfrig2489[go6]: newbus attach machinery RETURNED
dfrig2489: scenario 6 DONE (seq=1)


DragonFly/x86_64 (dfbsd) (ttyd0)



login: dfrig2489: worker firing scenario 1 (under mp_token, like the boot attach context)
dfrig2489: channel prepared: variant=0 (params.heads=16 params.sectors=63 cylinders=16383 atavalid=0x0006 lba_size=0x02000000)
dfrig2489[go1]: firing PRODUCTION ata_identify() (variant=0) -- kernel own ad_attach follows
ata0: identify ch->devices=00000001
dfrig2489:   hw: cmd=0xec feature=0x00 count=0 lba=0 bytecount=512 flags=0x1222
ata0-master: pio=PIO4 wdma=UNSUPPORTED udma=UNSUPPORTED cable=40 wire
ad-: ad0 exists, using next available unit number
dfrig2489: rig ata setmode default -> mode=0x0c
dfrig2489:   hw: cmd=0xc6 feature=0x00 count=16 lba=0 bytecount=0 flags=0x1
dfrig2489:   hw: cmd=0x20 feature=0x00 count=17 lba=33554415 bytecount=8704 flags=0x2
ad1: Adaptec check1 failed
dfrig2489:   hw: cmd=0x20 feature=0x00 count=4 lba=33554428 bytecount=2048 flags=0x2
ad1: LSI (v3) check1 failed
dfrig2489:   hw: cmd=0x20 feature=0x00 count=1 lba=33554431 bytecount=512 flags=0x2
ad1: LSI (v2) check1 failed
dfrig2489:   hw: cmd=0x20 feature=0x00 count=4 lba=33554241 bytecount=2048 flags=0x2
ad1: FreeBSD check1 failed
ad1: 16384MB <DF2489 SANE GEOMETRY FW000001> at ata0-master PIO4
ad1: 33554432 sectors [33288C/16H/63S] 16 sectors/interrupt 1 depth queue
dfrig2489: scenario 1 DONE (seq=2)
dfrig2489: worker firing scenario 2 (under mp_token, like the boot attach context)
dfrig2489: channel prepared: variant=1 (params.heads=0 params.sectors=63 cylinders=16383 atavalid=0x0006 lba_size=0x02000000)
dfrig2489[go2]: firing PRODUCTION ata_identify() (variant=1) -- kernel own ad_attach follows
ata0: identify ch->devices=00000001
dfrig2489:   hw: cmd=0xec feature=0x00 count=0 lba=0 bytecount=512 flags=0x1222
ata0-master: pio=PIO4 wdma=UNSUPPORTED udma=UNSUPPORTED cable=40 wire
ad-: ad0 exists, using next available unit number
dfrig2489: rig ata setmode default -> mode=0x0c
dfrig2489:   hw: cmd=0xc6 feature=0x00 count=16 lba=0 bytecount=0 flags=0x1


Fatal trap 18: integer divide fault while in kernel mode
cpuid = 4; lapic id = 4
instruction pointer	= 0x8:0xffffffff80328f7b
stack pointer	        = 0x10:0xfffff8008d9ab7e0
frame pointer	        = 0x10:0xfffff8008d9ab900
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 0, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= Idle
current thread          = pri 12 
kernel: type 18 trap, code=0

CPU4 stopping CPUs: 0x0000002f
 stopped
Stopped at      ad_attach+0x24b:        divq    %rsi,%eax
db>