linux-kernel - RE: ACPICA 20140214 auto-serialize weirds my machine...

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Message-ID: <94F2FBAB4432B54E8AACC7DFDE6C92E37C7F9876@ORSMSX103.amr.corp.intel.com>
Date:	Fri, 14 Mar 2014 19:36:54 +0000
From:	"Moore, Robert" <robert.moore@...el.com>
To:	Sabrina Dubroca <sd@...asysnail.net>,
	Valdis Kletnieks <Valdis.Kletnieks@...edu>
CC:	"Zheng, Lv" <lv.zheng@...el.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
	Len Brown <lenb@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-acpi@...r.kernel.org" <linux-acpi@...r.kernel.org>
Subject: RE: ACPICA 20140214 auto-serialize weirds my machine...

Sabrina, Valdis:

Do either of you see any error messages like this:

ACPI Error: Mutex [0x1] is not acquired, cannot release (20140214/utmutex-437)



> -----Original Message-----
> From: Sabrina Dubroca [mailto:sd@...asysnail.net]
> Sent: Friday, March 14, 2014 10:38 AM
> To: Valdis Kletnieks
> Cc: Zheng, Lv; Wysocki, Rafael J; Moore, Robert; Len Brown; linux-
> kernel@...r.kernel.org; linux-acpi@...r.kernel.org
> Subject: Re: ACPICA 20140214 auto-serialize weirds my machine...
> 
> Hi,
> 
> 2014-03-14, 12:05:01 -0400, Valdis Kletnieks wrote:
> > Surprisingly enough, this hasn't seemed to have bitten many Linux
> > people yet, Google only finds a BSD thread (where the same ACPICA code
> is in use):
> >
> > http://comments.gmane.org/gmane.os.dragonfly-bsd.user/1817
> 
> I was about to report the same issue on a Dell Latitude D830. Boot
> failure, flood of these messages:
> 
> ACPI Exception: AE_AML_MUTEX_ORDER, while evaluating GPE method [_L1C]
> (20140214/evgpe-580) ACPI Error: Method parse/execution failed [\GPE._L1C]
> (Node f5e0c9a8), AE_AML_MUTEX_ORDER (20140214/psparse-536) ACPI Error:
> Cannot acquire Mutex for method [SX30], current SyncLevel is too large (1)
> (20140214/dsmethod-362) ACPI Exception: AE_AML_MUTEX_ORDER, while
> evaluating GPE method [_L1C] (20140214/evgpe-580)
> 
> With acpi_no_auto_serialize things look good.
> 
> 
> Before I tried that option, a bisection led me to remove "| AML_CREATE"
> from commit f56b05bd111b. That made the laptop boot,
> 
> things seemed okay, except for the battery not being detected: the normal
> battery line was gone ("ACPI: Battery Slot [BAT0] (battery
> present)") and there's this instead:
> 
> ACPI Error: Cannot acquire Mutex for method [SX45], current SyncLevel is
> too large (1) (20140214/dsmethod-362) ACPI Error: Method parse/execution
> failed [\_SB_.BIF_] (Node f5c250d8), AE_AML_MUTEX_ORDER (20140214/psparse-
> 536) ACPI Error: Method parse/execution failed [\_SB_.BAT0._BIF] (Node
> f5c25168), AE_AML_MUTEX_ORDER (20140214/psparse-536) ACPI Exception:
> AE_AML_MUTEX_ORDER, Evaluating _BIF (20140214/battery-416)
> 
> 
> --
> Sabrina