Hi All,

I have upgraded my mobile from Android Gingerbread to Android  jelly bean 
and facing the below problem.

$mount
/dev/block/mmcblk0p14 /data/mnt/modemfs1 ext4 
ro,nosuid,nodev,relatime,user_xattr,barrier=1,data=ordered 0 0

umount /data/mnt/modemfs1   -> Gingerbread : I am able to umount and mount 
the mmcblk0p14
                   -> Jellybean     : I am not able to umount the 
mmcblk0p14(abd shell getting hanged when executing ). When I did ctrl + C 
mmcblk0p14 
                         entry not availble under the $mount. When I try to 
repair this file system using e2fsck showing the below  error: 
                         Device or resource busy while trying to open 
/dev/block/mmcblk0p14 
                                                                        
 Filesystem mounted or opened exclusively by another program?


Please any one help me to solve this problem or which android 
service/daemon is using mmcblk0p14.

Any help appreciated .

Thanks in Advance 
Ash

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