On Fri, 24 Jun 2011, Rafael J. Wysocki wrote: > > > I'm still not clear on why the error handler needs to run at this time. > > > > Because SATA ports are suspended with the help of the SCSI error handling > > mechanism (which Tejun claims is the best way to do that). > I've carried out this exercise to see how complicated it is going to be > and it doesn't really seem to be _that_ complicated. The appended patch > illustrates this, but it hasn't been tested, so caveat emptor. The patch is straightforward enough. But will it be sufficient? Suppose a SATA port is already in runtime suspend when the system sleep starts. Will the error handler be able to do its special job? I don't know... It may turn out to be necessary for the SATA port to be runtime resumed somewhere along the line. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
