Date: Mon, 25 Jan 1999 15:20:12 +1100 (EST) From: "John Saunders" <john.saunders@nlc.net.au> To: Heikki Suonsivu <hsu@clinet.fi> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Kernel PPP tty-level buffer overflows Message-ID: <Pine.LNX.3.95.990125151659.5992B-100000@nhj.nlc.net.au> In-Reply-To: <x2n23b3on9.fsf@katiska.clinet.fi>
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On 22 Jan 1999, Heikki Suonsivu wrote:
> > > > sio0: 815 more tty-level buffer overflows (total 4715)
> > > > sio0: 3093 more tty-level buffer overflows (total 7808)
>
> You need to configure your kernel with
>
> options "TTYHOG=4096"
> options "RS_IBUFSIZE=1024"
Done, although I doubled the numbers just to be sure. No errors since I
rebooted to the new kernel. Thanks for the tip, works well.
> and you need to patch sio.c to allow overriding RS_IBUFSIZE, as it is
> hardcoded (cyclades driver has the same problem, I think).
I've been running a cyclades 16Ye with all ports at 115200 (with 33.6K
modems though) on another machine and haven't had the problem. Although
this other machine has more than twice the CPU power.
Thanks.
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