illumos gate

Running Virtualbox 4.3.30 on mid-March OpenIndiana system, guest is yesterday's build of OI.

When I attach host device to the system and it has audio CD in it (or perhaps, just this particular CD), guest system crashes on boot. This is reproducible.
First of all, screen is filled with some read timeouts, then I see the following dump
http://imgur.com/UDg84Nz :

> $C
ffffff0003f739c0 ahci_add_doneq+0x14(ffffff0186dd4cc0, 0, 1)
ffffff0003f73a60 ahci_mop_commands+0x148(ffffff0186dcce40, ffffff0186dd4cc0, 1, 
2, 0, 0, ffffff0000000000)
ffffff0003f73b00 ahci_fatal_error_recovery_handler+0x241(ffffff0186dcce40, 
ffffff0186dd4cc0, ffffff0188057850, 40000000)
ffffff0003f73b60 ahci_events_handler+0xda(ffffff01881353f0)
ffffff0003f73c20 taskq_thread+0x2d0(ffffff0188489c18)
ffffff0003f73c30 thread_start+8()
> ::status
debugging crash dump vmcore.0 (64-bit) from openindiana
operating system: 5.11 illumos-7909625 (i86pc)
image uuid: 10b698ed-7eca-cc12-ec7b-c55d11390c86
panic message: 
BAD TRAP: type=e (#pf Page fault) rp=ffffff0003f738b0 addr=40 occurred in module
 "ahci" due to a NULL pointer dereference
dump content: kernel pages only

$ uname -a 
SunOS openindiana 5.11 illumos-7909625 i86pc i386 i86pc Solaris

This doeesn't happen, when I attach empty cdrom or cdrom witth inserted mp3 CD.