On Tue, 14 Apr 2009 08:59:01 -0600 Bjorn Helgaas <bjorn.helgaas@xxxxxx> wrote: > I can't help with the real problem of why the asynchronous battery > init causes the hang. that got fixed already for the module case. > > But I do object to the magic makefile ordering change in that commit. > Nobody reading the makefile can tell why battery is down at the end, > and moving it apparently slows down boot significantly. for all cases I've seen it actually speeds it up, because the battery now runs concurrently with the disk probe. > So the > ordering change just feels like a band-aid that covers up a place > where ACPI could be improved. the reason for the move is that both the battery and other pieces take the big acpi lock; which defeats the parallelism. So the battery needs to happen at the end instead. -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
