
This patch fixes a kernel memory fault in procfs.mod.

This patch fixes a system panic from procfs ioctl user code.

Fix VM locking problem in procfs.  Fix an kernel memory fault related to
ioctl PIOCMAP.

This patch fixes a problem in procfs that, in some situations, prevents exiting 
threads from exiting. This creates a situation where these threads simply spin, 
consuming cpu time.


