On 12/03/2009 02:45 AM, Alex Vandiver wrote: > At Tue Dec 01 20:43:42 -0500 2009, Tejun Heo wrote: >> Can you please try this one? > > Good and bad dmesg output attached. That's interesting. The link state seems to oscillates for quite long time. Can you please try the followings? 1. Change sata_deb_timing_hotplug to sata_deb_timing_long in ata_piix.c::piidx_sidpr_hardreset() and see whether it solves the problem? 2. Switch the controller into ahci mode in BIOS if possible and see whether the problem goes away. 3. Try kernel parameter "libata.force=nohrst" and see whether it makes any difference. Thanks. -- tejun -- 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