Re: SATA: "unknown partition table" error, fdisk can't fix, works in 2.6.13

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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
[email protected]
http://www.bootc.net/


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