Snowball: reboot hangs

[tianhongwang]

          When rebooting the device after Android runs normally, it hangs unexpectedly. And the information is as follows:

root@android:/ # reboot
[ 28.373229] SysRq : Emergency Remount R/O
[ 28.399505] EXT4-fs (mmcblk0p5): re-mounted. Opts: (null)
[ 28.428741] EXT4-fs (mmcblk0p6): re-mounted. Opts: (null)
[ 28.436004] Emergency Remount complete
[ 28.482360] adb_release
[ 28.484832] Unable to handle kernel paging request at virtual address 00100104
[ 28.497222] musb-hdrc musb-hdrc: remove, state 4
[ 28.501892] usb usb1: USB disconnect, device number 1
[ 28.511230] pgd = ea9fc000
[ 28.516174] [00100104] *pgd=2a9d6831, *pte=00000000, *ppte=00000000
[ 28.522613] musb-hdrc musb-hdrc: USB bus 1 deregistered
[ 28.531707] Restarting system.

[Sunil Kamath (sunil-kamath)]

Tian,
Do give us your technical input on this.

Also refer to issue:
https://bugs.launchpad.net/igloocommunity/+bug/872833