https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=270805
--- Comment #10 from Robert Clausecker <f...@freebsd.org> --- (In reply to Mark Millard from comment #9) The thermal zones for some reason do not have registers to read the temperature from. Hence some internal interface returns -1, which is converted into slightly below absolute zero. Your information about USB 2 vs USB 3 is interesting. I did my previous testing with a SATA HDD attached to an USB to SATA adapter, which should be using USB 3. Will test with that one again next week. -- You are receiving this mail because: You are the assignee for the bug.