smbfs/cifs mounts in fstab causing ethernet interface lockups

[Edsall, William (WJ)]

> Hello samba list,
>  I'm experiencing a strange issue with smbfs mounts. Please help me
> troubleshoot this as it is locking up some of our servers.
> 
> I have the following mount in fstab:
> //servername/remote_folder  /local_folder  cifs   username=<user
> here>,password=<pass here>uid=12427,gid=4400  0       0
> 
> The purpose is to mount a remote directory for a custom application.
> Smbfs mounts were chosen for a specific reason over NFS mountss.
> 
> What's happening is, every so often due to unknown circumstances, this
> mount will become unavailable and will entirely lock-up the ethernet
> interface using it. For our clusters it's the public interface -- the
> private will still be available.
> 
> After a lazy unmount of the smbfs mount, the interface is immediately
> available.
> 
> How can I make this mount more friendly so that these lock ups can be
> prevented?
> 
> 
> I'm not sure if this dmesg is from the forementioned problem, but I'll
> provide it just in case:
>  CIFS VFS: No response to cmd 115 mid 15
>  CIFS VFS: Send error in SessSetup = -11
>  CIFS VFS: No response to cmd 115 mid 17
>  CIFS VFS: Send error in SessSetup = -11
> 
> 
> Thanks ahead of time for your assistance!
> 
> _______________________________________
> William J. Edsall 
> 
> 
> 
>