linux-kernel - RE: [Regression Linux 4.11] TPM module not loaded anymore

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Date:   Wed, 12 Apr 2017 21:49:14 +0000
From:   "Moore, Robert" <robert.moore@...el.com>
To:     Paul Menzel <pmenzel@...gen.mpg.de>
CC:     Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>,
        "Maciej S. Szmigiero" <mail@...iej.szmigiero.name>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Arthur Heymans <arthur@...ymans.xyz>,
        "tpmdd-devel@...ts.sourceforge.net" 
        <tpmdd-devel@...ts.sourceforge.net>,
        "GNUtoo@...log.org" <GNUtoo@...log.org>,
        "Zheng, Lv" <lv.zheng@...el.com>,
        "Wysocki, Rafael J" <rafael.j.wysocki@...el.com>,
        "linux-acpi@...r.linux.org" <linux-acpi@...r.linux.org>
Subject: RE: [Regression Linux 4.11] TPM module not loaded anymore



> -----Original Message-----
> From: Paul Menzel [mailto:pmenzel@...gen.mpg.de]
> Sent: Wednesday, April 12, 2017 2:27 PM
> To: Moore, Robert <robert.moore@...el.com>
> Cc: Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>; Maciej S.
> Szmigiero <mail@...iej.szmigiero.name>; linux-kernel@...r.kernel.org;
> Arthur Heymans <arthur@...ymans.xyz>; tpmdd-devel@...ts.sourceforge.net;
> GNUtoo@...log.org; Zheng, Lv <lv.zheng@...el.com>; Wysocki, Rafael J
> <rafael.j.wysocki@...el.com>; linux-acpi@...r.linux.org
> Subject: RE: [Regression Linux 4.11] TPM module not loaded anymore
> 
> Dear Robert,
> 
> 
> Thank you for looking into this.
> 
> 
> On 2017-04-12 17:54, Moore, Robert wrote:
> > And probably the dmesg if error messages appear in there.
> 
> Linux doesn’t log any messages, as the `tpm` module doesn’t load. Please
> find the output of `sudo acpidump` attached.
> 
> […]
> 
[Moore, Robert] 

Do you have any idea what control method(s) are executing? The DSDT and SSDT in the acpidump load fine here, and all predefined control methods in these tables execute OK.

We need to root-cause this problem, as a simple revert will break the customers that the fix was intended for in the first place.

Bob


> 
> Kind regards,
> 
> Paul
> 
> 
> PS: Doesn’t your mail client support to easily reply in interleaved
> style?