Re: ACPI errors with 3.7-rc3

[Greg KH]

On Tue, Nov 06, 2012 at 04:42:24PM +0400, Azat Khuzhin wrote:
> I'v also have such errors on my macbook pro.
> 
> $ dmesg | tail
> [17056.008564] ACPI Error: Method parse/execution failed
> [\_SB_.PCI0.LPCB.EC__.SMB0.SBRW] (Node ffff88026547ea10), AE_TIME
> (20120711/psparse-536)
> [17056.011194] ACPI Error: Method parse/execution failed
> [\_SB_.BAT0.UBST] (Node ffff88026547e678), AE_TIME
> (20120711/psparse-536)
> [17056.013793] ACPI Error: Method parse/execution failed
> [\_SB_.BAT0._BST] (Node ffff88026547e740), AE_TIME
> (20120711/psparse-536)
> [17056.016383] ACPI Exception: AE_TIME, Evaluating _BST (20120711/battery-464)
> [17056.511373] ACPI: EC: input buffer is not empty, aborting transaction
> [17056.512672] ACPI Exception: AE_TIME, Returned by Handler for
> [EmbeddedControl] (20120711/evregion-501)
> [17056.515256] ACPI Error: Method parse/execution failed
> [\_SB_.PCI0.LPCB.EC__.SMB0.SBRW] (Node ffff88026547ea10), AE_TIME
> (20120711/psparse-536)
> [17056.517886] ACPI Error: Method parse/execution failed
> [\_SB_.BAT0.UBST] (Node ffff88026547e678), AE_TIME
> (20120711/psparse-536)
> [17056.520479] ACPI Error: Method parse/execution failed
> [\_SB_.BAT0._BST] (Node ffff88026547e740), AE_TIME
> (20120711/psparse-536)
> [17056.523070] ACPI Exception: AE_TIME, Evaluating _BST (20120711/battery-464)

I'm seeing this again right now.  I'm wondering if it's because I'm
running on battery power at the moment:

[41694.309264] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20120913/evregion-501)
[41694.309282] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC__.SMB0.SBRW] (Node ffff88045cc64618), AE_TIME (20120913/psparse-536)
[41694.309300] ACPI Error: Method parse/execution failed [\_SB_.BAT0.UBST] (Node ffff88045cc64988), AE_TIME (20120913/psparse-536)
[41694.309310] ACPI Error: Method parse/execution failed [\_SB_.BAT0._BST] (Node ffff88045cc648c0), AE_TIME (20120913/psparse-536)
[41694.309324] ACPI Exception: AE_TIME, Evaluating _BST (20120913/battery-464)
[41694.809093] ACPI: EC: input buffer is not empty, aborting transaction

ec_storm_threshold is still set to 8 in /sys/module/acpi/parameters/ so that's
not the issue here.

> And also loadavg is too high ~ 10
> While there is no process that load CPU up to 100% or like that.
> I think that this because of processes that is done in kernel space.
> (basically that one who write such errors)
> 
> $ uname -a
> Linux macbook-pro-sq 3.6.5macbook-pro-custom-v0.1 #4 SMP Sun Nov 4
> 12:39:03 UTC 2012 x86_64 GNU/Linux

Ah, ok, that means it's not something new in 3.7-rc, so maybe it's just never
worked properly for this hardware :)

So it's not a regression, just an ACPI issue, any ACPI developer have an idea
about this?

thanks,

greg k-h
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