Davyd Norris <Davyd.Norris@fcollins.com.au>  wrote:
 > What are the patches people have been applying involving the TTYHOG parameter?  Is this for this

The changes involving TTYHOG and clalloc()s in the tty subsystem are to
increase the tty buffer size so as to lessen the chances that they will
overrun.  This is somewhat unrelated to silo and ibuf overflows.  It is
possible that a slow machine, which, through some miracle of hardware is
able to keep up to 115.2kbps can still run out of tty buffer... That's what
this patch addresses.

If you are having a problem with silo or ibuf overflows, then increasing the
size of TTYHOG and the tty input buffers will have no effect on those.  If 
you manage to eliminate all of the silo or ibuf overflows and are finding that
you are still dropping blocks of characters, then you might try these changes.

Hope that straightens it out for everyone.