[linux-cifs-client] Help with error codes and configuration

[aragonx at dcsnow.com]

Hello all,

I am seeing a lot of error messages in my /var/log/messages file from CIFS
when trying to talk to a network resource.  My first question, is there a
place where I can see what each error code means?  Secondly, it has been
suggested that disabling Opportunistic Locking might help the situation. 
Is that the best course of action?  As always, any help would be greatly
appreciated.

Here is the system specs:

east:~ # uname -a
Linux east 2.6.28.4 #1 SMP Mon Feb 9 17:28:45 EST 2009 x86_64 x86_64
x86_64 GNU/Linux

east:~ # free
             total       used       free     shared    buffers     cached
Mem:      65598808   65375232     223576          0    4367864   55556872
-/+ buffers/cache:    5450496   60148312
Swap:     10530596     435672   10094924

east:~ # cat /proc/cpuinfo
processor       : 7
vendor_id       : AuthenticAMD
cpu family      : 15
model           : 65
model name      : Dual-Core AMD Opteron(tm) Processor 8220
stepping        : 3
cpu MHz         : 2800.127
cache size      : 1024 KB


I see a lot of these

Mar 19 12:52:45 east kernel:  CIFS VFS: No response for cmd 50 mid 25199

And a few of the following:

Mar 19 12:52:45 east kernel:  CIFS VFS: No response for cmd 162 mid 25193
Mar 19 12:53:51 east kernel:  CIFS VFS: No response to cmd 47 mid 25630

Mar 19 11:30:37 east kernel:  CIFS VFS: Send error in SETFSUnixInfo = -5
Mar 19 11:31:00 east kernel:  CIFS VFS: server not responding
Mar 19 11:31:00 east last message repeated 4 times

Mar 19 11:31:00 east kernel:  CIFS VFS: Send error in Close = -11
Mar 19 11:31:00 east last message repeated 3 times

Mar 19 11:31:00 east kernel:  CIFS VFS: No response to cmd 4 mid 31788
Mar 19 11:31:00 east kernel:  CIFS VFS: Send error in Close = -11
Mar 19 11:31:00 east kernel:  CIFS VFS: No response to cmd 4 mid 31790
Mar 19 11:31:00 east kernel:  CIFS VFS: Send error in Close = -11
Mar 19 11:31:00 east kernel:  CIFS VFS: No response for cmd 50 mid 31792
Mar 19 11:31:00 east kernel:  CIFS VFS: No response to cmd 47 mid 31782
Mar 19 11:31:00 east kernel:  CIFS VFS: Write2 ret -11, wrote 0
Mar 19 11:31:05 east kernel:  CIFS VFS: No response for cmd 50 mid 31798
Mar 19 11:31:05 east kernel:  CIFS VFS: No response to cmd 4 mid 31802



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