Tejun Heo wrote:
Samsung DB-P70 somehow botched the first ICH9 SATA port. The board doesn't expose the first port but somehow SStatus reports link online while failing SRST protocol leading to repeated probe failures and thus long boot delay. Because the BIOS doesn't carry any identifying DMI information, the port can't be blacklisted safely. Fortunately, the controller does have subsystem vendor and ID set. It's unclear whether the subsystem IDs are used only for the board but it can be safely worked around by disabling SIDPR access and just using SRST works around the problem. Even when the workaround is triggered on an unaffected board the only side effect will be missing SCR access.
.. A suggestion, then. As a follow-up patch, would it be possible to drop the workaround kludge, and restore the missing SCR access, __after the first time that a drive is detected on that port__? This way, there won't be any funny business for cases where the same ID might occur on different (non-botched) hardware ? Probably overkill, though. :) Cheers -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
