Timur,

fdisk manipulates DOS-style partition maps. Have you compiled these  
into your latest kernel? You don't actually have any errors in the  
below messages, other than the partition map being unreadable...

Chris

On 29 Sep 2006, at 21:11, Timur Tabi wrote:

I have a SATA drive attached to a PowerPC 8349E board, using the  
SIL 3114 controller.  I'm running the latest code from Paul  
Mackerras (PowerPC maintainer) (2.6.18-blabla).

I'm experiencing a number of I/O errors with the SATA drive.  fdisk  
can see the partition table, but when I issue the "w" command, I  
get this output:

Calling ioctl() to re-read partition table.
SCSI device sda: 321672960 512-byte hdwr sectors (164697 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back
 sda: unknown partition table
SCSI device sda: 321672960 512-byte hdwr sectors (164697 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back
 sda: unknown partition table
Syncing disks.

I cannot mount any partitions.  On boot, I see this:

sata_sil 0000:00:10.0: Applying R_ERR on DMA activate FIS errata fix
ata1: SATA max UDMA/100 cmd 0xD100E080 ctl 0xD100E08A bmdma  
0xD100E000 irq 22
ata2: SATA max UDMA/100 cmd 0xD100E0C0 ctl 0xD100E0CA bmdma  
0xD100E008 irq 22
ata3: SATA max UDMA/100 cmd 0xD100E280 ctl 0xD100E28A bmdma  
0xD100E200 irq 22
ata4: SATA max UDMA/100 cmd 0xD100E2C0 ctl 0xD100E2CA bmdma  
0xD100E208 irq 22
scsi0 : sata_sil
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata1.00: ATA-7, max UDMA/133, 321672960 sectors: LBA48 NCQ (depth  
0/32)
ata1.00: ata1: dev 0 multi count 0
ata1.00: configured for UDMA/100
scsi1 : sata_sil
ata2: SATA link down (SStatus 0 SControl 310)
scsi2 : sata_sil
ata3: SATA link down (SStatus 0 SControl 310)
scsi3 : sata_sil
ata4: SATA link down (SStatus 0 SControl 310)
scsi 0:0:0:0: Direct-Access     ATA      HDT722516DLA380  V43O PQ:  
0 ANSI: 5
SCSI device sda: 321672960 512-byte hdwr sectors (164697 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back
SCSI device sda: 321672960 512-byte hdwr sectors (164697 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write back
 sda: unknown partition table
sd 0:0:0:0: Attached scsi disk sda
sd 0:0:0:0: Attached scsi generic sg0 type 0

The odd thing is that this works in 2.6.13, so something is  
broken.  I don't know if it's a bug in the sata_sil driver, or a  
configuration issue.  Can anyone help?

-- 
Timur Tabi
Linux Kernel Developer @ Freescale
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-- 
Chris Boot
bootc@bootc.net
http://www.bootc.net/