Reboot failed on STE Snowball with Linux Linaro image.

[Botao]

On STE Snowball board with Linux Linaro image:

http://snapshots.linaro.org/quantal/pre-built/snowball/51/snowball-quantal_developer_20130121-51.img.gz

root@localhost:~# reboot

Broadcast message from <email address hidden>
        (/dev/ttyAMA2) at 3:06 ...

The system is going down for reboot NOW!
[ OK ]ocalhost:~# * Asking all remaining processes to terminate...
[ OK ] processes ended within 1 seconds....
[ OK ]ctivating swap...
[ OK ]ounting local filesystems...
umount: /run/lock: not mounted
umount: /run/shm: not mounted
 * Will now restart
[ 196.945007] Restarting system.

After showed above information, system hangs and no response.

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This issue is observed on following images:
http://snapshots.linaro.org/quantal/pre-built/snowball/51/snowball-quantal_developer_20130121-51.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/58/snowball-quantal_developer_20130128-58.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/68/snowball-quantal_developer_20130204-68.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/72/snowball-quantal_developer_20130209-72.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/249/snowball-quantal_developer_20130217-249.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/256/snowball-quantal_developer_20130224-256.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/269/snowball-quantal_developer_20130315-269.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/278/snowball-quantal_developer_20130328-278.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/282/snowball-quantal_developer_20130403-282.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/286/snowball-quantal_developer_20130408-286.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/290/snowball-quantal_developer_20130414-290.img.gz
http://snapshots.linaro.org/quantal/pre-built/snowball/299/snowball-quantal_developer_20130423-299.img.gz
http://snapshots.linaro.org/raring/hwpacks/snowball/323/hwpack_linaro-snowball_20130508-323_armhf_supported.tar.gz and http://snapshots.linaro.org/raring/images/developer/360/linaro-raring-developer-20130508-360.tar.gz
http://snapshots.linaro.org/raring/pre-built/snowball/336/snowball-raring_developer_20130520-336.img.gz
http://snapshots.linaro.org/ubuntu/pre-built/snowball/344/snowball-raring_developer_20130526-344.img.gz
http://snapshots.linaro.org/raring/pre-built/snowball/370/snowball-raring_developer_20130618-370.img.gz
http://snapshots.linaro.org/ubuntu/pre-built/snowball/376/snowball-raring_developer_20130623-376.img.gz