LSR safety check engaged

[Guest Alain Again]

Hello, everyone!

 

I had a USR5610B modem installed and after a lightning strike had to replace it. Thinking it was the right thing to do, my Replacement is a USR5610B.

 

However, kppp says "Sorry, the modem is not responding", even though /dev/modem -> /dev/ttyS4 and setserial and lspci are talking about the same port and IRQ, etc.

 

What is exceptional though is that on boot, I get "kernel: ttyS4: LSR safety check engaged!"

 

I suspect the message indicates why HardDrake sees the modem perfectly, but the kernal is preventing access.

 

What does it all mean?

[spinynorman]

Welcome to the board. :)

 

I've found this explanation of LSR safety check engaged. If you need further help, you'll have to wait for someone who's halfway competent in these matters. B)

[Guest Alain Again]

Well, thanxk, SpinyNorman.

 

The link definitely is the answer. The plot thickens, though, in that in my case the low-level hooks for my 5610B card correspond to everything the serial and PCI utilities could tell me.

 

I've set up my system so that I can trash it all and reinstall/restore in order to recover routinely. In this case, reinstalling mandrake and restoring needed data eliminated the message and gave me control of the 5610B. Now I'm networking from Mandrake again, instead of limping along with my XP box. It would have been interesting to try enabling/disabling the serial device at the kernal level - see the link SpinyNorman provided for details.

 

Tra la! ;)