The stavfs() hangs for stale NFS mount

Hi,
When the remote server from where a NFS file system is mounted is down, we get the stale NFS
mount error.
An application that just reads the entries of /etc/mnttab and does the statvfs() on all the file systems will
hang infinitely. The control is within the statvfs() call. The application goes into a uninterruptible sleep mode. Signals like SIGALARM or SIGPIPE are not handled. Only the signals like SIGTERM, SIGHUP,
SIGKILL are getting handled.
One solution which we considered was to check for the availability of the remote host before calling the
statvfs(). This can be done by sending ICMP packets to the remote host. But this method will not work
on the servers which restricts the ICMP packets (for some security reasons).
Is there any other way to avoid this problem?
Thanks in advance.
Best Regards,
Rams.

And again. Since 280 people have looked at my post and not one could help me I assume that there's no solution to my problem?
If that's true I would appreciate it if you tell me, and if there's a solution you know, or if you have any idea how to solve this, please reply.
kthxbai

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