Ubuntu: halt command throws error messages continuously and fails to shut down board

[Abhishek Paliwal]

Description:
-------------

halt command throws error messages continuously and fails to shut down board

tescase reference: https://wiki.linaro.org/Platform/QA/TestCases/Ubuntu#Halt

Reproducible:
---------------
yes , 5/5

Steps to reproduce:
----------------------
Type halt on serial console after device is up and running.

Logs:
------
serial logs attached.
Snippet of logs below:

#halt
root@linaro-ubuntu-desktop:~# halt

Broadcast message from root@linaro-ubuntu-desktop
 (/dev/ttyAMA2) at 13:49 ...

The system is going down for halt NOW!
root@linaro-ubuntu-desktop:~# [ 44.619964] init: Failed to create pty - disabling logging for job
[ 44.630615] init: Failed to create pty - disabling logging for job
Checking for running unattended-upgrades:
[ 44.645660] init: Failed to create pty - disabling logging for job
[ 47.947418] Bluetooth: BTCG2900 NULL supplied for driver_data
nm-dispatcher.action: Caught signal 15, shutting down...
   ...done.
[ 47.971313] Bluetooth: BTCG2900 NULL supplied for info
nm-dispatcher.action: Script '/etc/NetworkManager/dispatcher.d/01ifupdown' exited abnormally.
[ 48.493194]
[ 48.493225] [4f9aa3ff:320f5024] CG2900_FM_Driver: cg2900_fm_switch_off: Invalid state of FM Driver = 0
[ 48.504425]
[ 48.504455] [4f9aa3ff:32bb245d] CG2900_FM_Driver: cg2900_fm_deinit: Already de-Initialized
[ 50.417236] System halted.
[ 50.420043] BUG: scheduling while atomic48>] (schedule_timeout+0x[ 50.470153] BUG: scheduling while atomic: swapper/1/0/0x00010002
[ 50.470581] bad: scheduling from the idle thread!
[ 50.471191] BUG: scheduling while atomic: swapper/1/0/0x00010002

[Botao (botao-sun)]

Observed on hardware pack:

http://snapshots.linaro.org/precise/hwpacks/lt-snowball-x11-base/65/hwpack_linaro-lt-snowball-x11-base_20120514-65_armhf_supported.tar.gz

with ubuntu image:

http://snapshots.linaro.org/precise/images/ubuntu-desktop/158/linaro-precise-ubuntu-desktop-20120515-158.tar.gz

The board even be rebooted after hit lots of error information, refer to attachment to get the detailed log output.

[Abhishek Paliwal (abhishek-paliwal)]

halt fails on following images as well:

http://snapshots.linaro.org/precise/hwpacks/lt-snowball-x11-base/136/hwpack_linaro-lt-snowball-x11-base_20120617-136_armhf_supported.tar.gz
http://snapshots.linaro.org/precise/images/ubuntu-desktop/228/linaro-precise-ubuntu-desktop-20120617-228.tar.gz

Logs:
------
root@linaro-ubuntu-desktop:~# su - linaro
linaro@linaro-ubuntu-desktop:~$ sudo halt

Broadcast message from root@linaro-ubuntu-desktop
        (/dev/ttyAMA2) at 6:42 ...

The system is going down for halt NOW!
linaro@linaro-ubuntu-desktop:~$ Checking for running unattended-upgrades:
speech-dispatcher disabled; edit /etc/default/speech-dispatcher
[ 148.369354] Bluetooth: BTCG2900 NULL supplied for driver_data
[ 148.392028] Bluetooth: BTCG2900 NULL supplied for info
[ OK ]ing all remaining processes to terminate...
[ OK ] processes ended within 1 seconds....
[ 148.894836]
[ 148.894866] [4fe2c2ab:2c3c8fbb] CG2900_FM_Driver: cg2900_fm_switch_off: Invalid state of FM Driver = 0
[ 148.906921]
[ 148.906921] [4fe2c2ab:2cf4f69c] CG2900_FM_Driver: cg2900_fm_deinit: Already de-Initialized
nm-dispatcher.action: Caught signal 15, shutting down...
[ OK ]onfiguring network interfaces...
[ OK ]ctivating swap...
[ OK ]ounting local filesystems...
umount: /run/lock: not mounted
 * Will now halt
[ 155.999786] System halted.
[ 156.066375] BUG: scheduling while atomic: swapper/1/0/0x00010002
[ 156.105712] BUG: scheduling while atomic: swapper/1/0/0x00010002
[ 156.106109] bad: scheduling from the idle thread!
[ 156.106781] BUG: scheduling while atomic: swapper/1/0/0x00010002
[ 156.107177] bad: scheduling from the idle thread!
[ 156.107818] BUG: scheduling while atomic: swapper/1/0/0x00010002
[ 156.108245] bad: scheduling from the idle thread!
[ 156.108886] BUG: scheduling while atomic: swapper/1/0/0x00010002

[Paul Larson (pwlars)]

With http://snapshots.linaro.org/precise/images/ubuntu-desktop/247/linaro-precise-ubuntu-desktop-20120626-247.tar.gz
I get the familiar stream of errors, but then it eventually reboots if I wait for a few minutes!

The system is going down for halt NOW!
root@linaro-ubuntu-desktop:~# Checking for running unattended-upgrades:
speech-dispatcher disabled; edit /etc/default/speech-dispatcher
[ 1480.472167] Bluetooth: BTCG2900 NULL supplied for driver_data
[ 1480.482971] Bluetooth: BTCG2900 NULL supplied for info
 * Asking all remaining processes to terminate... [ OK ]
 * All processes ended within 1 seconds.... [ OK ]
[ 1480.984832]
[ 1480.984863] [4fe9d8b1:084e34ab] CG2900_FM_Driver: cg2900_fm_switch_off: Invalid state of FM Driver = 0
[ 1480.996582]
[ 1480.996582] [4fe9d8b1:09017c3f] CG2900_FM_Driver: cg2900_fm_deinit: Already de-Initialized
nm-dispatcher.action: Caught signal 15, shutting down...
modem-manager[1535]: <info> Caught signal 15, shutting down...

 * Deconfiguring network interfaces... [ OK ]
 * Deactivating swap... [ OK ]
 * Unmounting local filesystems... [ OK ]
umount: /run/lock: not mounted
 * Will now halt
[ 1487.429840] System halted.
[ 1487.432800] BUG: scheduling while atomic: swapper/0/0/0x00010002
[ 1487.435058] bad: scheduling from the idle thread!
[ 1487.438385] BUG: scheduling while atomic: swapper/0/0/0x00010002
[ 1487.631195] BUG: scheduling while atomic: swapper/0/0/0x00010002
[ 1487.633209] bad: scheduling from the idle thread!

[Amit Khare (amit-khare)]

observed on snowball build

https://snapshots.linaro.org/precise/hwpacks/lt-snowball-x11-base/211/hwpack_linaro-lt-snowball-x11-base_20120723-211_armhf_supported.tar.gz

[Amit Khare (amit-khare)]

observed on snowball build
http://snapshots.linaro.org/precise/images/ubuntu-desktop/323//linaro-precise-ubuntu-desktop-20120730-323.tar.gz

[Amit Khare (amit-khare)]

observed with snowball ubuntu build
http://snapshots.linaro.org/precise/images/ubuntu-desktop/333/linaro-precise-ubuntu-desktop-20120804-333.tar.gz

[Amit Khare (amit-khare)]

Also observed with snowball ubuntu build
http://snapshots.linaro.org/precise/pre-built/lt-snowball-x11-base/252/lt-snowball-x11-base-precise_ubuntu-desktop_20120812-252.img.gz

The system goes into halt throwing this error and auto reboots.

bad: scheduling from the idle thread
BUG: scheduling while atomic: swapper/0/0/0x00010002

[Amit Khare (amit-khare)]

Also observed with snowball ubuntu build
rootfs
http://snapshots.linaro.org/precise/images/ubuntu-desktop/352/linaro-precise-ubuntu-desktop-20120814-352.tar.gz
hwpack
http://snapshots.linaro.org/precise/pre-built/lt-snowball-x11-base/256/hwpack_linaro-lt-snowball-x11-base_20120814-256_armhf_supported.tar.gz

Seems to be working now but i can still the led lights on and blinking.

The system is going down for halt NOW!
Checking for running unattended-upgrades:
speech-dispatcher disabled; edit /etc/default/speech-dispatcher
[ 175.522216] Bluetooth: BTCG2900 NULL supplied for driver_data
[ 175.533721] Bluetooth: BTCG2900 NULL supplied for info
[ OK ]ing all remaining processes to terminate...
[ OK ] processes ended within 1 seconds....
[ 176.034851]
[ 176.034851] [50375cd3:0de44728] CG2900_FM_Driver: cg2900_fm_switc0
[ 176.046600]
[ 176.046630] [50375cd3:0e978ebc] CG2900_FM_Driver: cg2900_fm_deinid
nm-dispatcher.action: Caught signal 15, shutting down...
[ OK ]onfiguring network interfaces...
[ OK ]ctivating swap...
[ OK ]ounting local filesystems...
umount: /run/lock: not mounted
umount: /run/shm: not mounted
 * Will now halt
[ 184.898681] System halted.