HEAD @ r189170 fails to boot on a T41. Two cd/dvd drivers are
recognized (only 1 exists) and I get complaints of the form (and
transcribed):
acd1: WARNING - ATAPI_IDENTIFY taskqueue timeout - completing request
directory
(similarly for acd0) until there's a panic:
panic: mtx_lock() of destroy mutex @ .../../../kern_sema.c:79
(stack trace uninteresting).
Sam