Date: Sat, 04 Dec 1999 10:52:45 -0700 From: Warner Losh <imp@village.org> To: mjacob@feral.com Cc: Mike Smith <msmith@FreeBSD.ORG>, hackers@FreeBSD.ORG Subject: Re: tty level buffer overflows Message-ID: <199912041752.KAA21366@harmony.village.org> In-Reply-To: Your message of "Sat, 04 Dec 1999 09:36:30 PST." <Pine.BSF.4.10.9912040854180.27711-100000@beppo.feral.com> References: <Pine.BSF.4.10.9912040854180.27711-100000@beppo.feral.com>
next in thread | previous in thread | raw e-mail | index | archive | help
In message <Pine.BSF.4.10.9912040854180.27711-100000@beppo.feral.com> Matthew Jacob writes: : Normally I might agree with this, but I use a tty line on a 150Mhz i386 to : be a serial console for another freebsd box. This is a NS16550A with a 16 : byte fifo. This systems is effectively idle except for this task. So, I'm : running tip and I get constant tty-level buffer overflows at 9600 baud. In the past, something like TTYHOG has been used to arbitrate this, but I can't seem to find the right magic bits here. Pointers? I am seeing this at 115200 on my 486DX2-66 for my ISDN line. NS16550A uarts. Everything else seems cool. I am suspecting a subtle bug because it only happens now and again, not all the time, or only when large xfers are happening. I'd like to know more about this resource shortage so I might do something about it. Warner To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199912041752.KAA21366>