I am running pppd 2.4.0b4 so that should not be the problem. However if the
 problem is related to tcgetattr bogus failure, then I do not think
 pppd would be the problem especially since it is failing in chat.

 Does anyone know under what conditions a errno=5 (IO error) should be
 returned from tcgetattr(fd,&t) when fd is opened (rw).

> jerry wrote:
> > ppp chat script stopped working under 2.4.3. I ran a program of my own
> > that opens ttyS1 and it also fails on a tcgetattr with errno=5 (IO error).
> > The ppp chat script and my program both work fine under 2.4.2 and older.
> 
> I noticed that, but then I noticed I'm using pppd 2.3.11, and
> Documentation/Changes says I should use 2.4.0b1.  Then again
> Documentation/Changes said the same thing in kernel 2.4.2 as well, and
> pppd 2.3.11 works fine there.
> 
> -- Jamie
> 
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