Vasily Averin wrote: > Albert Lee wrote: >>>> Vasily Averin wrote: >>>>> I've noticed that some scsi commands for DVD-drive attached to pata_via >>>>> successfully finishes without any delays but reports about TIMEOUT condition. It >>>>> happens because of ATA_ERR bit is set in status register. As result for each >>>>> command Error Handler thread awakened, requests sense buffer and go to sleep again. >>>> Need more info. Please post boot dmesg and the result of 'lspci -nn' >>>> and 'hdparm -I /dev/srX' and when such errors occur. >> Your log looks ok. It's normal for TEST_UNIT_READY to return ATA_ERR when no disc >> inside and libata EH triggered to request sense. > > It's a bit strange for me, IMHO other scsi drivers requests sense buffer without > EH thread assistance. > Currently we know that ATA_ERR can be returned; it is not error, but one of > expected responses. Why we cannot request sense without EH? I would like to > understand is it implementation drawback or I missed something probably? That was a design choice. It's easier to implement that way. -- tejun - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
