This happens on latest Karmic too.
So it seems the problem is that the port multiplier code doesn't really like the new generation of AMD SATA 7xx controllers.
if I could vote I would turn off the CONFIG_SATA_PMP by default or make it at least disable-able through a kernel config parameter.
The few softreset failed messages are not that annoying than the random slowdowns and lockups which freezes the system for several minutes or forever.
This happens on latest Karmic too.
So it seems the problem is that the port multiplier code doesn't really like the new generation of AMD SATA 7xx controllers.
if I could vote I would turn off the CONFIG_SATA_PMP by default or make it at least disable-able through a kernel config parameter.
The few softreset failed messages are not that annoying than the random slowdowns and lockups which freezes the system for several minutes or forever.