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Groups > linux.debian.kernel > #58753 > unrolled thread

Bug#873187: linux-image-amd64: Missing tpm_tis module

Started byGregory Stark <stark@mit.edu>
First post2017-08-25 14:20 +0200
Last post2017-09-25 00:20 +0200
Articles 3 — 3 participants

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  Bug#873187: linux-image-amd64: Missing tpm_tis module Gregory Stark <stark@mit.edu> - 2017-08-25 14:20 +0200
    Processed: Re: Bug#873187: linux-image-amd64: Missing tpm_tis module owner@bugs.debian.org (Debian Bug Tracking System) - 2017-09-25 00:20 +0200
    Bug#873187: linux-image-amd64: Missing tpm_tis module Ben Hutchings <ben@decadent.org.uk> - 2017-09-25 00:20 +0200

#58753 — Bug#873187: linux-image-amd64: Missing tpm_tis module

FromGregory Stark <stark@mit.edu>
Date2017-08-25 14:20 +0200
SubjectBug#873187: linux-image-amd64: Missing tpm_tis module
Message-ID<uilKF-3VD-5@gated-at.bofh.it>
Package: linux-image-amd64
Version: 4.9+80+deb9u1
Severity: normal

Hi,

I find that the tpm_tis.ko module is missing in all kernel packages
since 4.9.0-3 (which is the version in Debian 9 installers and the
security archive). This includes all more recent kernels that I've
tried from unstable.

It was present in 4.9.0-2 which makes me wonder if it was removed due
to some last minute security problem before the release of Debian 9.

However this is a severe problem for users of the 2013 Chromebook
Pixel as there was a firmware bug that means suspend/resume doesn't
work unless the tpm chip has been initialized by the module. In other
words suspend/resume is broken on the 2013 Pixel ever since 4.9.0-3
but worked fine previously.

I can't find an existing bug about tpm_tis or any mention of it on the
list. Perhaps this was done unintentionally?


-- System Information:
Debian Release: 9.1
  APT prefers stable
  APT policy: (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages linux-image-amd64 depends on:
ii  linux-image-4.9.0-3-amd64  4.9.30-2+deb9u3

linux-image-amd64 recommends no packages.

linux-image-amd64 suggests no packages.

-- no debconf information

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#59001 — Processed: Re: Bug#873187: linux-image-amd64: Missing tpm_tis module

Fromowner@bugs.debian.org (Debian Bug Tracking System)
Date2017-09-25 00:20 +0200
SubjectProcessed: Re: Bug#873187: linux-image-amd64: Missing tpm_tis module
Message-ID<utnpL-5Zf-9@gated-at.bofh.it>
In reply to#58753
Processing control commands:

> reassign -1 src:linux 4.9.25-1
Bug #873187 [linux-image-amd64] linux-image-amd64: Missing tpm_tis module
Bug reassigned from package 'linux-image-amd64' to 'src:linux'.
No longer marked as found in versions linux-latest/80+deb9u1.
Ignoring request to alter fixed versions of bug #873187 to the same values previously set
Bug #873187 [src:linux] linux-image-amd64: Missing tpm_tis module
Marked as found in versions linux/4.9.25-1.
> tag -1 moreinfo
Bug #873187 [src:linux] linux-image-amd64: Missing tpm_tis module
Added tag(s) moreinfo.

-- 
873187: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=873187
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems

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#59002

FromBen Hutchings <ben@decadent.org.uk>
Date2017-09-25 00:20 +0200
Message-ID<utnpL-5Zf-1@gated-at.bofh.it>
In reply to#58753

[Multipart message — attachments visible in raw view] — view raw

Control: reassign -1 src:linux 4.9.25-1
Control: tag -1 moreinfo

On Fri, 2017-08-25 at 13:09 +0100, Gregory Stark wrote:
> Package: linux-image-amd64
> Version: 4.9+80+deb9u1
> Severity: normal
> 
> Hi,
> 
> I find that the tpm_tis.ko module is missing in all kernel packages
> since 4.9.0-3 (which is the version in Debian 9 installers and the
> security archive). This includes all more recent kernels that I've
> tried from unstable.
>
> It was present in 4.9.0-2 which makes me wonder if it was removed due
> to some last minute security problem before the release of Debian 9.

It's still included, but built-in.

> However this is a severe problem for users of the 2013 Chromebook
> Pixel as there was a firmware bug that means suspend/resume doesn't
> work unless the tpm chip has been initialized by the module. In other
> words suspend/resume is broken on the 2013 Pixel ever since 4.9.0-3
> but worked fine previously.

Have you actually found this to be broken?  I don't believe such a
failure would be related to the tpm_tis driver, since as I said it is
still included.

> I can't find an existing bug about tpm_tis or any mention of it on the
> list. Perhaps this was done unintentionally?

We didn't deliberately change it to built-in, but this is a result of
enabling IMA.

Ben.
 
-- 
Ben Hutchings
Make three consecutive correct guesses and you will be considered an
expert.

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