> On Thu, 2 Dec 1999, Warner Losh wrote:
>
> >
> > Dec 2 11:08:56 bifrost /kernel: sio0: 208 more tty-level buffer overflows (total
>3356)
> >
> > is appearing on our ppp machine. What are tty-level buffer overflows?
> > How can I fix this? What resource is running out?
>
> If I remember properly, it is a receive buffer filling up. There were some
> hacks in 2.x kernels to get around it, so you might want t o go look through
> the archives.
It's documented in the sio(4) manpage, which is always worth reading.
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