Problem writing to a CIFS share..

Ok.. here is the setup

Server "A": Windows 2003 Server (192.168.100.45)
Server "B": RedHat Enterprise Server v4.2 (192.168.100.50)

There is a share on the Windows server called "linux"

I mount it on the Linux server like that:
mount -t cifs -o username=linux,password=backups //192.168.100.45/
linux /backups

Then I do my system backups with "dump" like that:
dump -0af /backups/2008-10-15/linux-sda1-root.dump /dev/sda1
(all this is scripted so the date change automaticly and it backups
all partitions)

After a while the server load becomes really high and on the console I
start to see some errors:

------- console -------
CIFS VFS: sends on sock f11f4880 stuck for 30 seconds
CIFS VFS: Error -11 sending data on socket to server.
CIFS VFS: Error -32 sending data on socket to server.
CIFS VFS: No response buffer
CIFS VFS: No response buffer
CIFS VFS: sends on sock f11f4880 stuck for 30 seconds
CIFS VFS: Error -11 sending data on socket to server.
CIFS VFS: Error -32 sending data on socket to server.
CIFS VFS: No response buffer
----------------------------


Now.. the funny part.. nothing has changed on the server..

This solution for doing the backups has been working for a long time

But now.. we are getting these errors..

Once I get these errors, the CPU wait goes at 100% and applications
starts to malfunction.. MySQL first then apache, etc..

Anyone have an idea what could be happening ?

Thanks,
--Ben
.

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