These were identified in the illumos port using the umem allocator:
umem_alloc_16 leak: 1 buffer, 16 bytes
ADDR BUFADDR TIMESTAMP THREAD
CACHE LASTLOG CONTENTS
81e460 817fd0 570a4304d986 1
7d6668 79aa80 0
libc.so.1`strdup+0x25
topology_parse+0x2b
main+0x1c5
umem_alloc_64 leak: 1 buffer, 64 bytes
ADDR BUFADDR TIMESTAMP THREAD
CACHE LASTLOG CONTENTS
828b60 826f80 570a60076310 1
7db028 7a4480 0
libc.so.1`strdup+0x25
bootrom_loadrom+0x2e
lpc_init+0x48
pci_lpc_init+0x30
pci_emul_init+0xd3
init_pci+0x32f
main+0x4ed