Michael Sedkowski wrote: > I did some additional checking today... > On kernels prior to 2.6.22 line, the bug exists and manifests itself > exactly the same way. However, when I removed the "-h" flag > from /etc/init.d/halt, the drive spins down only once on "Power down" > message and there is no sign of the bug and the emergency unload count > remains constant. I've verified this on kernels 2.6.21.6; 2.6.20.4; > 2.6.18-4-686-Etch. > The obvious conclusion is that something must have changed it the 2.6.22 > kernels, so that removing the "-h" has no effect. > I dunno if my observations are of any value, but I thought You should > know... Yeah, till 2.6.22, libata didn't spindown disks on suspend or power off which incremented emergency unload count on all normal systems, so only the ACPI S5 routine is spinning down the disk on you system. The problem here is that now that libata is fixed there are two entities trying to spin down the disk and the disk is dumb enough to spin back up when FLUSH CACHE or STANDBYNOW is received while spun down. :-( Thanks. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
