[hoary, kernel-image-2.6.8-1-k7] device mapper ate my disks

[Carlo Salinari]

Hello,

I've just upgraded to kernel-image-2.6.8-1-k7, Version: 2.6.8-5, and got 
this at boot:

libata version 1.02 loaded.
sata_sil version 0.54
ACPI: PCI interrupt 0000:01:0b.0[A] -> GSI 11 (level, low) -> IRQ 11
ata1: SATA max UDMA/100 cmd 0xE0C5C080 ctl 0xE0C5C08A bmdma 0xE0C5C000 
irq 11
ata2: SATA max UDMA/100 cmd 0xE0C5C0C0 ctl 0xE0C5C0CA bmdma 0xE0C5C008 
irq 11
ata1: dev 0 cfg 49:2f00 82:7c6b 83:7b09 84:4003 85:7c69 86:3a01 87:4003 
88:207f
ata1: dev 0 ATA, max UDMA/133, 240121728 sectors:
ata1: dev 0 configured for UDMA/100
scsi0 : sata_sil
ata2: dev 0 cfg 49:2f00 82:7c6b 83:7b09 84:4003 85:7c69 86:3a01 87:4003 
88:207f
ata2: dev 0 ATA, max UDMA/133, 240121728 sectors:
ata2: dev 0 configured for UDMA/100
scsi1 : sata_sil
  Vendor: ATA       Model: Maxtor 6Y120M0    Rev: YAR5
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sda: 240121728 512-byte hdwr sectors (122942 MB)
SCSI device sda: drive cache: write back
 /dev/scsi/host0/bus0/target0/lun0: p1
Attached scsi disk sda at scsi0, channel 0, id 0, lun 0
  Vendor: ATA       Model: Maxtor 6Y120M0    Rev: YAR5
  Type:   Direct-Access                      ANSI SCSI revision: 05
SCSI device sdb: 240121728 512-byte hdwr sectors (122942 MB)
SCSI device sdb: drive cache: write back
 /dev/scsi/host1/bus0/target0/lun0: p1
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
Capability LSM initialized
device-mapper: 4.1.0-ioctl (2003-12-10) initialised: dm at uk.sistina.com
md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27
cdrom: open failed.
device-mapper: : dm-linear: Device lookup failed

device-mapper: error adding target to table
device-mapper: : dm-linear: Device lookup failed

device-mapper: error adding target to table
device-mapper: : dm-linear: Device lookup failed

device-mapper: error adding target to table
device-mapper: : dm-linear: Device lookup failed

device-mapper: error adding target to table
device-mapper: : dm-linear: Device lookup failed

[...]


which renders impossible to mount my 2 sata-disks.
Please note that sata_sil kernel module is correctly loaded.

Is there any workaround?

thanks,
    Carlo