Comment 10 for bug 595438

void scsi_req_complete(SCSIRequest *req)
{
    assert(req->status != -1);
    req->bus->complete(req->bus, SCSI_REASON_DONE,
                       req->tag,
                       req->status);
}

(gdb) bt 1
#0 0x0852cd88 in ?? ()
(More stack frames follow...)
(gdb) frame 1
#1 0x080f0f16 in scsi_command_complete (r=0x86252d8, status=<value optimized out>, sense=<value optimized out>)
    at /home/mmarkk/src/KVM/qemu-kvm-0.12.3+noroms/hw/scsi-disk.c:105
105 scsi_req_complete(&r->req);
(gdb) print r->req->bus->complete
$7 = (scsi_completionfn) 0x852cd88
(gdb) disassemble 0x852cd88
No function contains specified address.

Corrupted memory ?