[Bug 229745] ahcich: CAM status: Command timeout

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Tue Sep 4 13:07:10 UTC 2018


--- Comment #11 from cryx-freebsd at h3q.com ---
(In reply to cryx-freebsd from comment #10)

Setting kern.cam.ada.write_cache=0 in loader.conf and doing a power-cycle makes
the problem go away, with the obvious hits on IO performance.

IHMO this shows that there is indeed a problem with the disks write-cache

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