Kernel spits out lot of these
Jun 18 05:14:47 pommi /kernel: sio1: 119 more interrupt-level buffer over
flows (total 3642)
Jun 18 05:14:47 pommi /kernel: sio1: 119 more interrupt-level buffer overflows (
It also very easily reboots when lots of PPP load exits.
Low tcp performance hints that it is loosing lots of data.
I think this feature has already been discussed; grepping
'interrupt-level' from FAQ's didn't help. If this is a feature
which can be worked around, this might be a doc-bug? However, I
find it curous how a 386-16 could be too slow to respond for a 38400
Use FreeBSD as a router for a PPP connection on a slow machine.
fixed setting 'options RS_IBUFSIZE=1024', with appropriate
modifications made to sio.c to allow for this
incomplete analysis of solution/workaround
sio.c is Bruce's responsibility
duplicated in PR#kern/579, and describes workaround