Re: GA-MA790FX-DS5 SATA ahci NCQ erros on Jmicron 20360/20363 (JMB363) kernel 2.6.25-2 Debian/Lenny

[Krzysztof Halasa <khc@pm.waw.pl>]

Sergey Spiridonov <sena@hurd.homeunix.org> writes:

> I got a replacement motherboard. And I got absolutely same errors and
> problems.

FWIW I have an MSI (P45 Neo2) mobo with JMB363 (only PATA connected)
and its second AHCI port (ata8, not connected) gives me the following.

The 2.6.26.2 kernel doesn't see any problem:

Linux version 2.6.26.2 (gcc version 4.3.0 20080428 (Red Hat 4.3.0-8) SMP
ata7: SATA max UDMA/133 abar m8192@0xfeafe000 port 0xfeafe100 irq 16
ata8: SATA max UDMA/133 abar m8192@0xfeafe000 port 0xfeafe180 irq 16
ata7: SATA link down (SStatus 0 SControl 300)
ata8: SATA link down (SStatus 0 SControl 300)
ata9: PATA max UDMA/100 cmd 0xdc00 ctl 0xd880 bmdma 0xd400 irq 17
ata10: PATA max UDMA/100 cmd 0xd800 ctl 0xd480 bmdma 0xd408 irq 17
ata9.00: ATAPI: _NEC DVD_RW ND-4550A, 1.09, max UDMA/33
ata9.00: configured for UDMA/33

Now with 2.6.26.3:
ata7: SATA max UDMA/133 abar m8192@0xfeafe000 port 0xfeafe100 irq 16
ata8: SATA max UDMA/133 abar m8192@0xfeafe000 port 0xfeafe180 irq 16
ata7: SATA link down (SStatus 0 SControl 300)
ata8: SATA link down (SStatus 0 SControl 300)
ata9: PATA max UDMA/100 cmd 0xdc00 ctl 0xd880 bmdma 0xd400 irq 17
ata10: PATA max UDMA/100 cmd 0xd800 ctl 0xd480 bmdma 0xd408 irq 17
ata9.00: ATAPI: _NEC DVD_RW ND-4550A, 1.09, max UDMA/33
ata9.00: configured for UDMA/33
ata8: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen
ata8: irq_stat 0x00000040, connection status changed
ata8: SError: { DevExch }
ata8: hard resetting link
ata8: SATA link down (SStatus 0 SControl 300)
ata8: EH complete
ata8: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen
ata8: irq_stat 0x00000040, connection status changed
ata8: SError: { DevExch }
ata8: hard resetting link
ata8: SATA link down (SStatus 0 SControl 300)
ata8: EH complete
ata8: exception Emask 0x10 SAct 0x0 SErr 0x4000000 action 0xe frozen
ata8: irq_stat 0x00000040, connection status changed
ata8: SError: { DevExch }
ata8: hard resetting link
...

.config differences which could somehow be relevant(?):

-CONFIG_GART_IOMMU=y
-CONFIG_K8_NB=y
-CONFIG_AGP_AMD64=y

(I'm using SWIOTLB in both cases, it's P45/Core2 duo based machine).

Can't see anything between 2.6.26.2 and 2.6.26.3 which could cause
that. Perhaps I should bisect it anyway?
For now I have just disabled these AHCI devices, didn't know that it
was ok with 2.6.26.2 (just noticed it in the logs). Will look at it.
-- 
Krzysztof Halasa