Strange taskqueue timeouts

Matthew Dillon dillon at
Thu Nov 27 14:37:15 PST 2008

:Too strange that after a reboot or reset, the disk was completely missing.
:There was no ad4 (or ar0) any more. It appeared again, after powering down
:the box completely.
:> Prior to my recent departure from the FreeBSD Project, I documented this
:> common problem.  And no, there is no fix for it; it requires a large
:> amount of time and money (replacing hardware) to troubleshoot.
:Thanks! I'll take a close look if this kind of problems appear again.
:   Michael

    Check that all the fans are working and the disk hasn't overheated, too.
    One thing that a big rdist might do is exercise the cpu and disk enough
    to overheat the system if it was not otherwise well fanned.

					Matthew Dillon 
					<dillon at>

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