On Sun, 9 Jul 2006, Justin Piszcz wrote:

On Sun, 9 Jul 2006, Justin Piszcz wrote:

quoted

I made my own patch (following Mark's example) but also added that printk 
in that function.

Jul  9 16:37:52 p34 kernel: [4294810.556000] ata_gen_fixed_sense: failed 
ata_op=0x35
Jul  9 16:37:52 p34 kernel: [4294810.556000] ata4: translated ATA stat/err 
0x51/04 to SCSI SK/ASC/ASCQ 0xb/00/00
Jul  9 16:37:52 p34 kernel: [4294810.556000] ata_gen_ata_desc_sense: failed 
ata_op=0x51
Jul  9 16:37:52 p34 kernel: [4294810.556000] ata4: status=0x51 { DriveReady 
SeekComplete Error }
Jul  9 16:37:52 p34 kernel: [4294810.556000] ata4: error=0x04 { 
DriveStatusError }

Now that we have found the ata_op code of 0x35, what does this mean?  Is it 
generated from a bad FUA/unsupported command from the kernel/SATA driver?

Justin.

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In /usr/src/linux/include/linux/ata.h:

 ATA_CMD_WRITE_EXT = 0x35,

Perhaps these drives do not support this command or do not support it 
properly?

Any idea, Jeff/Alan?

Justin.

Here are all the errors (when reading/writing heavily):

[4294810.556000] ata_gen_fixed_sense: failed ata_op=0x35
[4294810.556000] ata4: translated ATA stat/err 0x51/04 to SCSI SK/ASC/ASCQ 
0xb/00/00
[4294810.556000] ata_gen_ata_desc_sense: failed ata_op=0x51
[4294810.556000] ata4: status=0x51 { DriveReady SeekComplete Error }
[4294810.556000] ata4: error=0x04 { DriveStatusError }
[4295514.668000] ata_gen_fixed_sense: failed ata_op=0x35
[4295514.668000] ata3: translated ATA stat/err 0x51/04 to SCSI SK/ASC/ASCQ 
0xb/00/00
[4295514.668000] ata_gen_ata_desc_sense: failed ata_op=0x51
[4295514.668000] ata3: status=0x51 { DriveReady SeekComplete Error }
[4295514.668000] ata3: error=0x04 { DriveStatusError }

Jeff/Mark, from these errors can we reach a consensus as to the cause of 
these errors and how to eliminate the problem?

Thanks,

Justin.