On 05/03/07 20:04, Garrett D'Amore wrote:

If the device isn't in use, then probably the historical data simply is not interesting.

They could be useful in post-mortem debugging where they represent
a small handle on past history relative to the snapshot-in-time
which the system crash dump represents.

So I'd suggest the solution is not to eliminate persistent kstats
from the OS entirely, but instead to find a simple mechanism to
detect when they are acting obstructively (as in the case you
describe) rather than as a history mechanism, and to cleanup
in those case or allow the driver some means to force the cleanup.

Gavin
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