LSR safety check engaged!

I am getting the message "ttyS1: LSR safety check engaged!" with Knoppix installed on my HD when I try to dial my ISP via my PC Card modem, which is on ttyS1. I didn't get the message when working direct from the CD, and nor do I get it when working from the HD through an external modem on ttyS0. I also haven't had it using my PC Card modem with other distro's, such as debian and Slackware. Can anyone please tell me what the message means and what I need to do to get rid of it and be able to use my PC Card modem from my HD?

--I get the message on my tower too, but don't know what it means. You might want to google around for that warning/error message.

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Originally Posted by neil

I am getting the message "ttyS1: LSR safety check engaged!" with Knoppix installed on my HD when I try to dial my ISP via my PC Card modem, which is on ttyS1. I didn't get the message when working direct from the CD, and nor do I get it when working from the HD through an external modem on ttyS0. I also haven't had it using my PC Card modem with other distro's, such as debian and Slackware. Can anyone please tell me what the message means and what I need to do to get rid of it and be able to use my PC Card modem from my HD?

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Thanks. Already tried that. No good.

--Here are some googling results:
http://www.ctssn.com/bbs/messages/337.html
http://www.ctssn.com/bbs/messages/349.html

http://www.uwsg.iu.edu/hypermail/lin...02.1/0075.html

Search of the Linux kernel archive:
http://www.google.com/u/iuussg?as_oq...linux%2Fkernel

--If the problem is truly heinous and unfixable, you could always access that last link and send an email to Ted T...

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Originally Posted by neil

Thanks. Already tried that. No good.

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Have already seen these and tried suggestions as appropriate. Problem is not heinous although it may well be unfixable going by the posts I've read. I just hadn't seen the message before using other distros on the same equipment and wondered what it meant. Thanks anyway.