Upgrade to kmod (25-1ubuntu1.1) causes Lenovo x240 laptop to hang on boot

Hello Adam, or anyone else affected,

Accepted kmod into cosmic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kmod/25-1ubuntu1.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-cosmic to verification-done-cosmic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-cosmic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Adam, or anyone else affected,

Accepted kmod into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kmod/24-1ubuntu3.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-bionic. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Hello Adam, or anyone else affected,

Accepted kmod into xenial-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/kmod/22-1ubuntu5.2 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested and change the tag from verification-needed-xenial to verification-done-xenial. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-xenial. In either case, without details of your testing we will not be able to proceed.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

kmod 25-1ubuntu1.2 looks good on cosmic

I am opening a "linux" task for investigating the real root cause of this in kernel.

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1802689

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

Hi Adam:

Could you try 4.19 kernel with i2c_i801 loaded?
http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.19/

to see if it is fixed?

Thanks.

This bug was fixed in the package kmod - 25-1ubuntu2

---------------
kmod (25-1ubuntu2) disco; urgency=medium

  * Add i2c_i801 back to d/modprobe.d/blacklist.conf again due to regressions.
    (LP: #1802689, #1802135)

 -- Michael Hudson-Doyle <email address hidden> Tue, 13 Nov 2018 10:50:02 +1300

Tested on ThinkPad X240s:
ThinkPad BIOS GIET52WW (2.00 )
Lenovo ThinkPad X240s, model 3333333

Hang issue is not reproduced.

Loading i2c_i801 runtime didn't cause any issue.
Booting with touchpad in smbus which using i2c_i801 module, Ubuntu 18.04 works fine, touchpad works fine.

Log attached.

Could you provide more details, like dmesg, call trace when system hang?

This bug was fixed in the package kmod - 24-1ubuntu3.2

---------------
kmod (24-1ubuntu3.2) bionic; urgency=medium

  * Add i2c_i801 back to d/modprobe.d/blacklist.conf again due to regressions.
    (LP: #1802689, #1802135)

 -- Michael Hudson-Doyle <email address hidden> Tue, 13 Nov 2018 10:54:37 +1300

This bug was fixed in the package kmod - 25-1ubuntu1.2

---------------
kmod (25-1ubuntu1.2) cosmic; urgency=medium

  * Add i2c_i801 back to d/modprobe.d/blacklist.conf again due to regressions.
    (LP: #1802689, #1802135)

 -- Michael Hudson-Doyle <email address hidden> Tue, 13 Nov 2018 10:51:29 +1300

The verification of the Stable Release Update for kmod has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

This bug was fixed in the package kmod - 22-1ubuntu5.2

---------------
kmod (22-1ubuntu5.2) xenial; urgency=medium

  * Add i2c_i801 back to d/modprobe.d/blacklist.conf again due to regressions.
    (LP: #1802689, #1802135)

 -- Michael Hudson-Doyle <email address hidden> Tue, 13 Nov 2018 10:55:50 +1300

@Adam,
We still don't get your feedback about new kernel test.

I have verified x240s in comment #9.
This issue is not reproduced.

Because more laptops need smbus/i2c support.
i2c_i801 should be removed in this case.

If you still got issue when i2c_i801 loaded, please upload log.
Then we cat try to fix it.

I have confirmed with Adam Jacobs on email that he runs latest 18.10 kernel, and his system no longer hangs after i2c_i801 is removed from blacklist.

Yes, confirmed. On my Lenovo x240, kernel 4.18.0-15-generic, I removed i2c_i801 from the blacklist and no longer can reproduce the hang.