linux-kernel - Re: ACPI errors with 3.7-rc3

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Message-ID: <41011456.LYWJPCi9Xt@vostro.rjw.lan>
Date:	Wed, 07 Nov 2012 22:49:40 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	Greg KH <gregkh@...uxfoundation.org>,
	Azat Khuzhin <dohardgopro@...il.com>
Cc:	linux-acpi@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Feng Tang <feng.tang@...el.com>, Lv Zheng <lv.zheng@...el.com>,
	Len Brown <lenb@...nel.org>,
	"Moore, Robert" <robert.moore@...el.com>
Subject: Re: ACPI errors with 3.7-rc3

On Tuesday, November 06, 2012 01:48:26 PM Greg KH wrote:
> 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?

Can you please send the output of acpidump from the affected machine(s)?

Rafael


-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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