On 07/28/2015 at 08:58 PM, Mike Snitzer wrote: > On Tue, Jul 28 2015 at 2:20pm -0400, > Andreas Hartmann <andihartmann@xxxxxxxxxx> wrote: > >> On 07/28/2015 at 07:50 PM, Mike Snitzer wrote: >> [..] >>> Are your SATA devcies using NCQ? >> >> Yes. It's enabled: >> >> dmesg| grep -i ncq >> ahci 0000:00:11.0: flags: 64bit ncq sntf ilck pm led clo pmp pio slum part >> ata2.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA >> ata3.00: 5860533168 sectors, multi 0: LBA48 NCQ (depth 31/32), AA >> ata1.00: 468862128 sectors, multi 16: LBA48 NCQ (depth 31/32), AA >> >> As the errors already come up on boot (during mount of partitions or >> even before the password for the disk has been provided): How can I >> disable NCQ during boot of the kernel? Is there a kernel option? > > See: > https://ata.wiki.kernel.org/index.php/Libata_FAQ#Enabling.2C_disabling_and_checking_NCQ > > alternatively, and likely easier, set this on the kernel commandline: > libata.force=noncq ata2.00: FORCE: horkage modified (noncq) ata2.00: 5860533168 sectors, multi 0: LBA48 NCQ (not used) ata3.00: FORCE: horkage modified (noncq) ata3.00: 5860533168 sectors, multi 0: LBA48 NCQ (not used) ata5.00: FORCE: horkage modified (noncq) ata1.00: FORCE: horkage modified (noncq) ata1.00: 468862128 sectors, multi 16: LBA48 NCQ (not used) Perfectly. Seems to work w/ 3.19.8 and your mentioned patches. But now, I'm getting another error, which I didn't see before w/ 3.x-kernels: [drm:btc_dpm_set_power_state [radeon]] *ERROR* rv770_restrict_performance_levels_before_switch failed It seams that your patches do have some unwanted side effects :-). Could you please reexamine your patch "dm crypt: don't allocate pages for a partial request" - after applying this patch all the problems are coming up here. Thanks, regards, Andreas -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
