Hi, I noticed messages like the following in my syslogs with Linux v3.8-rc1 and v3.8-rc2: ata1.00: failed to get Identify Device Data, Emask 0x1 In this Samsung ultrabook there exists a small SSD and a 500GiB HDD. I had no look which of the two is "ata1" or "ata2". NOTE: With ata2 I do not see the messages. I haven't checked older Linux-kernel versions. I followed the thread in [1] a bit and Aaron Lu pointed to the commit which causes these messages. Shane wanted to submit a patch [3] which I first didn't found. But I guess it's the one from [4], building right now... Hope this helps a bit to narrow down the problem. Regards, - Sedat - [1] https://lkml.org/lkml/2012/10/16/557 [2] http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=65fe1f0f66a57380229a4ced844188103135f37b [3] https://lkml.org/lkml/2012/11/16/369 [4] http://git.kernel.org/?p=linux/kernel/git/jgarzik/libata-dev.git;a=patch;h=de90cd71f68e947d3bd6c3f2ef5731ead010a768 P.S.: Excerpts from the quoted commit: [ drivers/ata/libata-core.c ] ... + /* check and mark DevSlp capability */ + if (ata_id_has_devslp(dev->id)) + dev->flags |= ATA_DFLAG_DEVSLP; + + + /* Obtain SATA Settings page from Identify Device Data Log, + * which contains DevSlp timing variables etc. + * Exclude old devices with ata_id_has_ncq() + */ + if (ata_id_has_ncq(dev->id)) { + err_mask = ata_read_log_page(dev, + ATA_LOG_SATA_ID_DEV_DATA, + ATA_LOG_SATA_SETTINGS, + dev->sata_settings, + 1); + if (err_mask) + ata_dev_dbg(dev, + "failed to get Identify Device Data, Emask 0x%x\n", + err_mask); + } + - EOT - -- 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
