Re: Issue 343186 in chromium: Chromebook loses enrollment (possibly after auto-update).

[chro...@googlecode.com]

Updates:
Summary: Chromebook loses enrollment (possibly after auto-update).
Cc: dkr...@chromium.org

Comment #25 on issue 343186 by tna...@chromium.org: Chromebook loses
enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

+dkrahn

Darren, I'd greatly appreciate your input on the following issue: There
are customer reports (see also issue 305457) of high incidence of TPM
errors on stout with "TPM self test failed" (quoted below, see attachment
for complete log). These errors are transient (don't show up on subsequent
boots) but seem sufficient to knock out encrypted stateful, losing
enrollment in the process. Do you have any idea w.r.t. the source of the
problem? Is it a hardware issue?

[ 0.620955] tpm_tis tpm_tis: registering reboot notifier [gentle
shutdown]
[ 0.621020] tpm_tis tpm_tis: 1.2 TPM (device-id 0x0, rev-id 78)
[ 1.104343] tsc: Refined TSC clocksource calibration: 1496.600 MHz
[ 1.104347] Switching to clocksource tsc
[ 6.678544] tpm_tis tpm_tis: Operation Timed out
[ 6.678565] tpm_tis tpm_tis: TPM self test failed
tpm-probe[738]: tpm is non-functional or tpm driver is missing
[...]
chapsd[819]: TPM initialization failed (this is expected if no TPM is
available). PKCS #11 tokens will not be available.
[...]
chapsd[819]: No TPM is available. Loading a software-only token.


Attachments:
device2.txt 112 KB

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[chro...@googlecode.com]

Comment #26 on issue 343186 by dkr...@chromium.org: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

I've seen this before:

tpm_tis tpm_tis: Operation Timed out

It's tracked in issue 219092. This was fixed by
https://chromium-review.googlesource.com/202463 (and similar CLs for other
kernel versions) which makes the driver more tolerant. Are the cases you're
seeing still running the FSI (which presumably doesn't have this fix)?

[chro...@googlecode.com]

Comment #27 on issue 343186 by tna...@chromium.org: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

Darren, thanks a lot for chiming in! The affected stouts are running a
recent stable Chrome OS (they are not pinned to a specific version).

[chro...@googlecode.com]

Updates:
Cc: ns...@chromium.org

Comment #29 on issue 343186 by tna...@chromium.org: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

Nigel, do you have an thoughts about this?

[chro...@googlecode.com]

Comment #32 on issue 343186 by ns...@chromium.org: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

Re #29, this is not an issue i've seen specifically. Do we have any data on
the frequency of this issue, the number of devices affected?

[chro...@googlecode.com]

Comment #33 on issue 343186 by dherb...@fccsc.k12.in.us: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

I have 2-3 students a day coming down to my office to be re-enrolled out of
a deployment of 900 chromebooks. It is completely random, and students say
it happens both when they shut down and restart, or when they close the lid
and open it in their next class.

[chro...@googlecode.com]

Comment #34 on issue 343186 by mr.hod...@gmail.com: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

This issue just occurred with one of our chromebooks.
Machine started up unenroled and time was out by a few hours too. Time
synced once connected to a network and had to be reenroled.

[chro...@googlecode.com]

Updates:
Status: Assigned
Labels: -Pri-1 -Needs-Feedback Pri-2

Comment #37 on issue 343186 by tna...@chromium.org: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

Reopening. Needs-Feedback tag isn't correct, actually it needs eng cycles.

[chro...@googlecode.com]

Comment #38 on issue 343186 by jschlue...@kimberly.k12.wi.us: Chromebook

loses enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

We have noticed we are getting this with a specific model. Its the Lenovo
ThinkPad x131e. We have not seen this with any of the other 6 models that
we have in our School District. Any resolution yet?

[chro...@googlecode.com]

Comment #39 on issue 343186 by dherb...@fccsc.k12.in.us: Chromebook loses

enrollment (possibly after auto-update).
https://code.google.com/p/chromium/issues/detail?id=343186

Our tech office is still running into these issues 2 years later, 5-10
times a day. We run the x131e chromebooks, over 900 of them. No solution.
Not to mention the countless broken hinges, monitor issues, and failed
motherboards. The indestructible x131e...