At the office we are testing a new mobo and initially used the onboard SATA controllers (an sata_nv and sil24). Disks are Seagate Barracuda ES 750GB on Asus P5N-SLI-SE-DELUXE mobo. We get regular failures on the sil24 attached disks. Changing power supply had no effect. We then booted with 'noapic' and not a single error today. The errors are of this type (sorry, no logs were kept) status=0x50 { DriveReady SeekComplete } They arrive often and do not seem to relate so specific disk activity. In this case it was a raid syncing for a few hours (naturally it never completed). What does this indicate: A mobo problem? A bios issue? A bios setup error? A kernel apic issue or a sil24 driver issue? I used to get these at home when I used a sil based card (now not in use anymore) and I consider this a common problem. I also see these mentioned often elsewhere (as a websearch can easily confirm). -- Eyal Lebedinsky (eyal@xxxxxxxxxxxxxx) <http://samba.org/eyal/> attach .zip as .dat - 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