1 
 2 09/21/87  user_ring_io
 3 Known errors in the current release of user_ring_io.
 4 #         Associated TR's
 5 Description
 6 
 7 6  phx13287
 8 ioa_ resets the column count to zero on each invocation, regardless of
 9 whether or not it was a $nnl.  This causes ^t to be passing useless with
10 ioa_$Xnnl.
11 
12 This is extremely messy to improve, since per-switch static information
13 would be needed.  Even then, other iox_ calls could screw things up.
14 For the moment, then, ^t wil remain defined to refer to the current
15 fragment produced with the current call.  The documentation should be
16 made crystal clear on this issue.
17 
18 
19 5  phx12631
20 There is a failure to chase the actual_iocb_ptr pointer in some ofthe
21 calls in cross_ring_.  Thus syn_ attachments in the user ring fail.
22 
23 4  phx07196
24 There is no arbitration for the several subsystem that claim to "own"
25 the basic terminal attachment.  Some protocol is needed.