Date: Sun, 19 Apr 1998 00:37:30 -0700 (PDT) From: Doug White <dwhite@gdi.uoregon.edu> To: Chris Gordon <cagg@interlog.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: interrupt-level buffer overflows Message-ID: <Pine.BSF.3.96.980419003617.6766Z-100000@gdi.uoregon.edu> In-Reply-To: <199804181405.KAA15282@smtp.interlog.com>
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On Sat, 18 Apr 1998, Chris Gordon wrote: > Actually, I am attempting to install FreeBSD under Virtual PC, a PC > emulator under Macintosh. When it boots it identifies the UART (both sio0 > & sio1) as 16550A. I've tried setting the baud down to 28.8, but it still > didn't help. I don't want to set it any lower or it will take much too > long to download the binaries (and decrease net access speed in general). You got a working copy of vpc, good work. Usually it would blow up on the CPU probe and you'd have to get the patch. :) Hm. You might see if you can tune the VPC settings to increase the serial buffer size. > >> DEBUG: xx more interrupt-level buffer overflows (total xxxxx) > > > >What does the boot messages report as your UART type for this computer? If > >they're anything but 16550s and 16650s then your computer can't handle > >33.6 speeds. Buy a multi-I/O card with a 16550 UART on it or drop your > >baudrate. > > > >Interrupt-level means that the system couldn't process the data as fast as > >it was coming through and had to drop it. Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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