On Sun, 2009-04-12 at 23:54 +0800, Alan Jenkins wrote: > Alan Jenkins wrote: > > Alexey Starikovskiy wrote: > >> Alan Jenkins wrote: > >>> On latest git, powertop shows 20 ACPI interrupts per second. > >>> Previously, this was closer to 1 per second. See attached output (a > >>> vs b, "a" is from 2.6.29-rc8). > >>> > >>> This is from a pretty sparse KDE desktop. Normally I run > >>> gnome-power-manager, but I killed it to make sure that wasn't > >>> causing any problems. > >>> > > > >>> gpe18: 60975 enabled > >>> gpe_all: 60975 > >>> sci: 60975 > >>> > >>> which I presume means lots of EC interrupts. > >>> > >>> [ 0.134068] ACPI: EC: GPE = 0x18, I/O: command/status = 0x66, > >>> data = 0x62 > >>> > > > >> This patch looks to be a suspect: > >> 34ff4dbccccce54c83b1234d39b7ad9e548a75dd, > >> Please check if reversing it helps > > > > No, I still get 20 ACPI interrupts per second. > > > > I tried without powertop, just in case that was provoking it, but it > > still happens: > > > > alan@alan-eeepc:/sys/firmware/acpi/interrupts$ cat sci; sleep 5; cat sci > > 2583 > > 2680 > > I did wonder whether this was due to thermal polling. So look what I > found with bisection :-). Does the issue still exist if the following commit is reverted? Thanks. > > > b1569e99c795bf83b4ddf41c4f1c42761ab7f75e is first bad commit > commit b1569e99c795bf83b4ddf41c4f1c42761ab7f75e > Author: Matthew Garrett <mjg59@xxxxxxxxxxxxx> > Date: Wed Dec 3 17:55:32 2008 +0000 > > ACPI: move thermal trip handling to generic thermal layer > > The ACPI code currently carries its own thermal trip handling, > meaning that > any other thermal implementation will need to reimplement it. Move > the code > to the generic thermal layer. > > > Regards > Alan > -- > 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 -- To unsubscribe from this list: send the line "unsubscribe kernel-testers" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
