Christopher Jones wrote:
Hello,
I have some testing to report. Using debian 4.0 and kernel 2.6.20.6 The
computer is a Dell inspiron 1501 laptop. I get errors and the hard disc
is not detected.
ahci 0000:00:12.0: AHCI 0001.0100 32 slots 4 ports 3 Gbps 0xf impl SATA
mode
ahci 0000:00:12.0: flags: 64bit ncq ilck pm led clo pmp pio slum part
ata3: SATA max UDMA/133 cmd 0xFFFFC20000022100 ctl 0x0 bmdma 0x0 irq 317
ata4: SATA max UDMA/133 cmd 0xFFFFC20000022180 ctl 0x0 bmdma 0x0 irq 317
ata5: SATA max UDMA/133 cmd 0xFFFFC20000022200 ctl 0x0 bmdma 0x0 irq 317
ata6: SATA max UDMA/133 cmd 0xFFFFC20000022280 ctl 0x0 bmdma 0x0 irq 317
scsi2 : ahci
ata3: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata3.00: qc timeout (cmd 0xec)
ata3.00: failed to IDENTIFY (I/O error, err_mask=0x104)
Using pci=nomsi causes the hard disc to be detected and it works correctly.
The same errors occurred with the 2.6.18 kernel. Again pci=nomsi fixes it.
Yep, broken interrupt delivery will definitely look like that. MSI is
definitely a problem here, at least on SB600.
I can also report that the pata_atiixp driver which was new between
2.6.18 and 2.6.20.6 works correctly for my CD drive.
That driver does not use MSI, so no worries there.
Jeff
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