Date: Fri, 25 Dec 1998 10:47:26 -0700 From: "george vagner" <kf7nn1@cybertrails.com> To: "Michael Maxwell" <drwho@xnet.com>, <freebsd-questions@FreeBSD.ORG> Subject: Re: This is getting old... Message-ID: <002801be302e$a3853ec0$0300a8c0@ginger>
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its telling you that the data is being received into the uart faster than the processor can read it. A bit gets set in the uart called uasually reciever overrun this means that the data was not read before the next byte of data came in thus overrun... uasually this is caused by a slower serial port to modem speed (DTE speed) but can also be caused by a heavily loaded system in the case of pentiums or an older computer with 16450 uarts (9600 baud max). if your actually connecting at 33.6 with compression you need to set your serial port speed at 115200 or turn off your compression and you can set it at 56k. if it still does this i think there was a bug in the older versions of freebsd that kept giving these errors i believe it was on 2.2.5 and below. Hope this helps -----Original Message----- From: Michael Maxwell <drwho@xnet.com> To: freebsd-questions@FreeBSD.ORG <freebsd-questions@FreeBSD.ORG> Date: Friday, December 25, 1998 12:27 AM Subject: This is getting old... >Can someone please, for the love of god, tell me why this happens: > >Dec 24 20:53:46 drwho /kernel: sio1: 14 more interrupt-level buffer >overflows (total 14) > >This happens almost always when I use zmodem to upload files using Minicom. >Right now, the problem is so bad, I cannot upload files using zmodem! The >transfer cancels itself out and my syslog fills up with the above messages! > >The modem is a USR Sportster 33.6 internal... never had a problem with it >under other OS's.... > >I have posted this question numerous times and have yet to ever hear even >so much as a word about it. I've posted it to the bug reports section on >the freebsd web page. I've posted it on the newsgroups. > >Does anyone know what this is all about? is anyone *working* on it? I >would think this is a pretty serious problem, especially for those who >are running ISP's, etc.. and NEED to use Zmodem file transfers routinely! > >I have tried to go through the kernel source, but that is a bit over my >head... Can something be done about this by more experienced kernel hackers? > > > >-- >drwho @ xnet.com, BOFH -- http://www.xnet.com/~drwho/ >V pna'g oryvrir lbh npghnyyl obgurerq gb qrpbqr guvf... > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-questions" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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