How to fix high CPU problem when plugging an iPhone to Ubuntu

When plugging an iPhone to a Ubuntu 10.04 machine for a few times, the CPU becomes busy with 100% utilization.

This is due to some bugs which causes both iphone-set-info and gvfs-afc-volume-monitor processes to fully utilize the CPU.

The problem can be fixed by stopping both processes from the terminal.

1. Launch terminal.
2. Kill iphone-set-info process.

   $ sudo killall -9 iphone-set-info
   password:  

3. Kill gvfs-afc-volume-monitor process.

   $ sudo killall -9 gvfs-afc-volume-monitor