On Dec 7, 2006, at 6:14 PM, Anton B. Rang wrote:
This does look like the ATA driver bug rather than a ZFS issue per se.
Yes indeed. Well, that answers that. FWIW, I'm hour 2 of a mysql configure script run. Yow!
(For the curious, the reason ZFS triggers this when UFS doesn't is because ZFS sends a synchronize cache command to the disk, which is not handled in DMA mode by the controller; and for this particular controller, switching between DMA and PIO mode has some quirks which were worked around by adding delays. The fix involves a new quirk-work-around.)
Ah, so I suppose this would affect the V100, too. The same ALi IDE controller in that box.
Thanks for the insight. Since the fix for this made it into snv_52, I suppose it's too recent for a backport and patch release for s10 :(
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