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 > I'm trying to apply your mentioned patches to 3.19 and report back. OK. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel