illumos gate

Loading modules: [ unix genunix specfs dtrace mac cpu.generic uppc pcplusmp scsi_vhci zfs sata sd ip hook neti sockfs arp usba stmf stmf_sbd qlc fctl lofs random idm fcp cpc ufs logindmux ptm sppp nfs ]
> ::ldi_handle

*** mdb: received signal SEGV at:
    [1] mdb`mdb_getopts+0x1bb()
    [2] genunix.so`ldi_handle+0x5a()
    [3] mdb`dcmd_invoke+0x7c()
    [4] mdb`mdb_call_idcmd+0x112()
    [5] mdb`walk_dcmd+0x3d()
    [6] genunix.so`ldi_handle_walk_step+0xcb()
    [7] mdb`walk_step+0x7f()
    [8] mdb`walk_common+0x77()
    [9] mdb`mdb_pwalk_dcmd+0xfc()
    [10] mdb`mdb_walk_dcmd+0x20()
    [11] genunix.so`ldi_handle+0xc4()
    [12] mdb`dcmd_invoke+0x7c()
    [13] mdb`mdb_call_idcmd+0x112()
    [14] mdb`mdb_call+0x449()
    [15] mdb`yyparse+0xda6()
    [16] mdb`mdb_run+0x2cd()
    [17] mdb`main+0xc9d()
    [18] mdb`_start+0x6c()

mdb: (c)ore dump, (q)uit, (r)ecover, or (s)top for debugger [cqrs]?

From ::help ldi_handle:

Without the address of an "ldi_handle_t", print all handles.