Description of problem:

If using a wifi connection and having cifs network mounts, the machine hangs for a while during shutdown. If mounts are first removed before shutdown, or machine uses a wired connection, this does not occur.

Version-Release number of selected component (if applicable):

9.34-2

How reproducible:

Always, at least on fedora 15 & 16. Should also manifest itself on rhel 6, but cannot confirm or deny at this time.

Steps to Reproduce:
1. Mount a network share with cifs (do not also have nfs or smbfs shares mounted, as the issue won't occur).
2. Shutdown machine (e.g: using poweroff command)
  
Actual results:

Machine pauses during shutdown, on fedora this occurs at the "F" logo during shutdown.

Expected results:

Constant shutdown progress.

Additional info:

Can be fixed by altering the section in /etc/init.d/network stop) section that looks like this:

NFSMTAB=$(LC_ALL=C awk '$3  ~ /^nfs/ { print $2 }' /proc/mounts)
SMBMTAB=$(LC_ALL=C awk '$3 == "smbfs" { print $2 }' /proc/mounts)
NCPMTAB=$(LC_ALL=C awk '$3 == "ncpfs" { print $2 }' /proc/mounts)
if [ -n "$NFSMTAB" -o -n "$SMBMTAB" -o -n "$NCPMTAB" ] ; then

to be this:

NFSMTAB=$(LC_ALL=C awk '$3  ~ /^nfs/ { print $2 }' /proc/mounts)
SMBMTAB=$(LC_ALL=C awk '$3 == "smbfs" { print $2 }' /proc/mounts)
CIFSMTAB=$(LC_ALL=C awk '$3 == "cifs" { print $2 }' /proc/mounts)
NCPMTAB=$(LC_ALL=C awk '$3 == "ncpfs" { print $2 }' /proc/mounts)
if [ -n "$NFSMTAB" -o -n "$SMBMTAB" -o -n "$CIFSMTAB" -o -n "$NCPMTAB" ] ; then