Hya,
Attention SATA disk users. When upgrading kernel to 2.6.19/2.6.20 using 'make oldconfig', sata setting won't go into new config file. SATA used to be under SCSI, but no longer.
CONFIG_SCSI_SATA_SIL (older kernels) and CONFIG_SATA_SIL (newer ones)
I wasted significant amount of time.
Happy Penguins!