illumos gate

Which version of which distribution are you running? Do you have the core file? Can you run pstack on the core and include the stack traces?

I am on recent Openindiana, pkg update yesterday.

SunOS fuji 5.11 illumos-dca2b4edbf i86pc i386 i86pc

1. pstack core
   core 'core' of 3004: format
   fe106a2a UDiv (4, 0, 8042a3c, 8042778, 8042758, 80427fc) + 2a
   0807935f auto_sense (4, 0, 8042a3c, f58f4baf) + 2cb
   080742f2 add_device_to_disklist (8042d8c, 804318c, 0, 0) + 595
   08074c99 do_search (0, 1, 8043a18, 80663da, 805554c, fe520018) + 303
   080663f0 main (8043a1c, fe2285c8, 8043a58, 8057edb) + b0
   08057edb _start_crt (1, 8043a7c, f58f8c9f, 0, 0, 0) + 9a
   08057daa _start (1, 8043b64, 0, 8043b6b, 8043b7f, 8043b95) + 1a

What output you see if you execute the same format command with the "-M" option?
Is your controller reports something like this?:

Geometry:
    pcyl:    0
...(OR)
    heads:   0
...

1. format -M
   Searching for disks...
   c10t4d1: attempting auto configuration
   Inquiry:
   00 00 05 12 45 00 00 02 41 54 41 20 20 20 20 20 ....E...ATA
   53 54 33 32 30 4c 54 30 30 39 2d 39 57 43 31 34 ST320LT009-9WC14
   44 45 4d 41 20 20 20 20 20 20 20 20 20 20 20 20 DEMA
   57 30 51 39 53 48 48 42 00 00 00 77 1e a0 03 00 W0Q9SHHB...w....
   03 20 0b fd 16 00 00 00 00 . .......
   Product id: ST320LT009-9WC14
   Capacity: 25 42 ea af 00 00 02 00
   blocks: 625142447 (0x2542eaaf)
   blksize: 512
   disk name: `9-9WC14`

Mode sense page 0x3 (current):
header: 23 00 00 08 00 00 00 00 00 00 02 00
data: 03 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00

Mode sense page 0x4 (current):
header: 23 00 00 08 00 00 00 00 00 00 02 00
data: 04 16 04 a8 5e 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00
Geometry:
pcyl: 305246
ncyl: 305244
heads: 0
nsects: 0
acyl: 2
bcyl: 0
rpm: 0
nblocks: 625142448
The current rpm value 0 is invalid, adjusting it to 3600
Arithmetic Exception (core dumped)

Thank you for having a look at this !!

Yeah, is the same. It seems the controller does not publish the CHS values.

Additional Info because it was there also in #396 just to compare

1. cfgadm -a
   Ap_Id Type Receptacle Occupant Condition
   c10 scsi-bus connected configured unknown
   c10::dsk/c10t4d1 disk connected configured unknown
   sata2/0::dsk/c8t0d0 disk connected configured ok
   sata2/1::dsk/c8t1d0 disk connected configured ok
   sata2/2 sata-port empty unconfigured ok
   sata2/3::dsk/c8t3d0 disk connected configured ok
   sata2/4::dsk/c8t4d0 disk connected configured ok
   usb9/1 unknown empty unconfigured ok