Hibernate fails

[Hugo Vanwoerkom <hvw59601@care2.com>]

Hi,

Running the latest Sid on a PC. After hibernating for years it suddenly 
fails with these messages:

serial 00:08: disable failed
dpm_run_callback(): pnp_bus_freeze+0x0/0x10 returns -5
PM: Device 00:08 failed to freeze: error -5

How does one figure out what device 00:08 is and a return code of -5?

I hibernate by issuing 'acpitool -S' and those messages are in kern.log.

Hugo