Groups > linux.kernel > #1619099

Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo X60 with coreboot

From	Paul Menzel <pmenzel@molgen.mpg.de>
Newsgroups	linux.kernel
Subject	Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo X60 with coreboot
Date	2017-04-07 23:00 +0200
Message-ID	<ttJ98-4g5-13@gated-at.bofh.it> (permalink)
References	(1 earlier) <tt95E-4Qc-9@gated-at.bofh.it> <ttiVk-3pQ-17@gated-at.bofh.it> <ttkkq-4sU-11@gated-at.bofh.it> <ttl6O-51d-19@gated-at.bofh.it> <ttIwq-3XJ-1@gated-at.bofh.it>
Organization	Max-Planck-Institut für molekulare Genetik

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Dear Jarkko,


On 2017-04-07 22:13, Jarkko Sakkinen wrote:
> On Thu, Apr 06, 2017 at 01:10:13PM -0600, Jason Gunthorpe wrote:
>> On Thu, Apr 06, 2017 at 08:26:22PM +0200, Paul Menzel wrote:
>> > >We added direct ACPI binding to the driver in addition to PNP, so if
>> > >you have an ACPI table it goes down that path and does some additional
>> > >validation of what is in the TPM. The BIOS must provide a
>> > >acpi_dev_resource_memory and a ACPI_SIG_TPM2 for the ACPI entry at a
>> > >minimum.
>> >
>> > Is it correct, that this is added in/for 4.11, so just recently? Testing
>> > with Linux 4.10.8, everything is detected just fine.
>> 
>> No, it is quite a bit older.. And it should only go for TPM2, which I
>> don't think you have??
>> 
>> Maybe Jarkko has a guess, but sure sounds like something is recently
>> broken in 4.11
>> 
>> Jason
> 
> I'll come back to this. I have to re-read the whole mail thread to
> get back into the context. Lots of multitasking because of release
> and so forth. Sorry for the latency!

I started bisecting this issue. This is the current state.

```
# git bisect log
# bad: [7a771ceac771d009f7203c40b256b0608d7ea2f8] Merge tag 
'dm-4.11-changes' of 
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
# good: [c470abd4fde40ea6a0846a2beab642a578c0b8cd] Linux 4.10
git bisect start 'HEAD' 'v4.10'
# good: [b3de5ad688f0f52457e73767f95a640ab4158d0d] Merge tag 
'regmap-v4.11' of 
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
git bisect good b3de5ad688f0f52457e73767f95a640ab4158d0d
```


Kind regards,

Paul

Thread

Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo  X60 with coreboot "Maciej S. Szmigiero" <mail@maciej.szmigiero.name> - 2017-04-05 13:30 +0200
  Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-04-05 15:50 +0200
  Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo  X60 with coreboot Paul Menzel <pmenzel@molgen.mpg.de> - 2017-04-06 08:30 +0200
    Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo  X60 with coreboot "Maciej S. Szmigiero" <mail@maciej.szmigiero.name> - 2017-04-06 14:00 +0200
    Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-04-06 19:00 +0200
      Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo  X60 with coreboot Paul Menzel <pmenzel@molgen.mpg.de> - 2017-04-06 20:30 +0200
        Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-04-06 21:20 +0200
          Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-04-07 22:20 +0200
            Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on Lenovo  X60 with coreboot Paul Menzel <pmenzel@molgen.mpg.de> - 2017-04-07 23:00 +0200
      Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> - 2017-04-06 21:00 +0200
      Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> - 2017-04-08 13:30 +0200
        Re: [tpmdd-devel] Regression between Linux 3.16 and 4.8/4.9 on  Lenovo X60 with coreboot Jason Gunthorpe <jgunthorpe@obsidianresearch.com> - 2017-04-08 22:30 +0200

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