[dm-devel] AMD-Vi IO_PAGE_FAULTs and ata3.00: failed command: READ FPDMA QUEUED errors since Linux 4.0
Andreas Hartmann
andihartmann at freenet.de
Tue Jul 28 19:23:42 UTC 2015
On 07/28/2015 at 08:58 PM, Mike Snitzer wrote:
> On Tue, Jul 28 2015 at 2:20pm -0400,
> Andreas Hartmann <andihartmann at freenet.de> 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
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