On Sat, Jun 7, 2008 at 6:55 AM, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:Yes, the problem which we are fighting here is that almost all Acer notebooks come withOn Sat, 7 Jun 2008 06:21:54 +0000 "Justin Mattock" <justinmattock@xxxxxxxxx> wrote:
Well; I was hoping it was going to be just an easy fix, but unfortunatelyI removed bugzilla from cc - that only works if there's [Bug 1234] in
changing
if (atomic_read(&ec->irq_count) > 5) {
to
if (atomic_read(&ec->irq_count) > 20) {
does seem to make the message disappear, for a while, probably at
around three hours,(for me at least) then the message appeared again.
:-(
So leaving me back to the beginning of try to have a go at this.
regards;
the Subject:.
I added linux-acpi to cc - this is an acpi problem.
What Justin is mysteriously referring to here is:
: From: "Justin Mattock" <justinmattock@xxxxxxxxx>
: To: "Linux Kernel Mailing List" <linux-kernel@xxxxxxxxxxxxxxx>
: Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
: Subject: GPE storm detected, disabling EC GPE
: Date: Thu, 5 Jun 2008 21:01:55 +0000
: Sender: linux-kernel-owner@xxxxxxxxxxxxxxx
:
: FWIW I noticed a post where the person had changed 5 to 20, and it
: seemed to work for them;
: So with that in mind I decide to give that a go, here is the location:
: drivers/acpi/ec.c
: @@ -527,47 +488,51 @@ static u32 acpi_ec_gpe_handler(void *data)
: {
: acpi_status status = AE_OK;
: struct acpi_ec *ec = data;
: u8 state = acpi_ec_read_status(ec);
:
: pr_debug(PREFIX "~~~> interrupt\n");
: atomic_inc(&ec->irq_count);
: - if (atomic_read(&ec->irq_count) > 5) {
: + if (atomic_read(&ec->irq_count) > 20) {
: pr_err(PREFIX "GPE storm detected, disabling EC GPE\n");
: ec_switch_to_poll_mode(ec);
: goto end;
: }
:
: Now I don't know if this will work for other brands, but for
: me(Macbook Pro ATI chipset) I have not received the
: GPE storm detected, disabling EC GPE message, but it's only been an
: hour, maybe after two or three this might appear.
: Also is this good or bad to set 5 to 20 for the system?
Could someone from acpi land please help here?
Justin, has this machine always had this problem or is it something
which earlier kernels handled correctly?
Thanks.
This issue just recently started, 2.6.25-rc9 and below don't give me
this message.