Description of problem:

The 2.6.20-1.2925.fc7 kernel does not find my SCSI disks or CD drive, while the
2.6.18-1.2798.fc6 kernel does.

Version-Release number of selected component (if applicable):
2.6.20-1.2925.fc7

How reproducible:

Always

I've attached good & bad boot logs, for the earlier & later kernels respectively.

Here's how the IDE init looks on the good kernel:

ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
SvrWks CSB5: IDE controller at PCI slot 0000:00:0f.1
SvrWks CSB5: chipset revision 147
SvrWks CSB5: not 100% native mode: will probe irqs later
    ide0: BM-DMA at 0x08b0-0x08b7, BIOS settings: hda:pio, hdb:pio
    ide1: BM-DMA at 0x08b8-0x08bf, BIOS settings: hdc:DMA, hdd:pio
hdc: SONY CD-RW CRX216E, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
ide-floppy driver 0.99.newide

Then, the SCSI hardware is not detected either (good version as follows):
mptbase: Initiating ioc0 bringup
input: ImPS/2 Generic Wheel Mouse as /class/input/input1
ioc0: 53C1030: Capabilities={Initiator}
scsi0 : ioc0: LSI53C1030, FwRev=01000c00h, Ports=1, MaxQ=255, IRQ=177
  Vendor: SEAGATE   Model: ST336732LW        Rev: 2227
  Type:   Direct-Access                      ANSI SCSI revision: 03
 target0:0:0: Beginning Domain Validation
 target0:0:0: Ending Domain Validation
 target0:0:0: FAST-160 WIDE SCSI 320.0 MB/s DT IU QAS HMCS (6.25 ns, offset 63)
SCSI device sda: 71132959 512-byte hdwr sectors (36420 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through w/ FUA
SCSI device sda: 71132959 512-byte hdwr sectors (36420 MB)
sda: Write Protect is off
SCSI device sda: drive cache: write through w/ FUA
 sda: sda1 sda2
sd 0:0:0:0: Attached scsi disk sda


See attachements for full logs.