CA error

[Geoff Savage <savage@fnal.gov>]

Hi,

I'm running a CA client on IOC A accessing records on a IOC B.  After 
performing a ca_clear_channel on all the channels on IOC A connected to 
the IOC B I receive this error:
CAC: unexpected select fail: 851971=S_iosLib_INVALID_FILE_DESCRIPTOR.
From what I understand about CA it appears the fd on IOC A which 
handles the connection to IOC B has been released prematurely.

I found the errors source in src/ca/bsd_depen.c but am uncertain as to 
how the select bits are set.

Any insights?  Thanks

Geoff