In message <878zoomawb.fsf@gibbon.cnet.aladdin.de>, you write: 

-> I've got a problem with one machine, running 1.5Q (and earlier
-> versions):
-> 
-> Whenever I unmount a local fs, where at least some activity has
-> happened (e.g. ls -l), I get the following panic:
-> 
-> "ffs_unmount: flush left dirty bufs 0xhexnumbla"
-> 
-> This also happens at shutdown time when the fs's are unmounted, so
-> it's really annoying.

I've also seen this, both on my laptop and desktop boxes.  The desktop
has a SCSI CD and CDRW, but the hard drive is IDE.  The laptop has both
an IDE disk and IDE CD, and no SCSI.

Sorry that I don't have more info, just wanted to add my <AOL>Me TOO!</AOL>
--rafal

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Rafal Boni                                                  rafal@mediaone.net