Re: Bug in serial.c

[Steven Walter <srwalter@yahoo.com>]

On Thu, Apr 19, 2001 at 11:32:20AM -0400, Marc Karasek wrote:
> I am doing some embedded development with the 2.4.x series and have noticed
> a few things..
> 
> 1) In 2.4.2 in order to compile with module support you also had to turn on
> smp support.  This has been fixed in the 2.4.3 release.  This bloated the
> kernel image to 600k+ which in an embedded world is not a good thing :-)
> 
> 2) In 2.4.3 the console port using ttySX is broken.  It dumps fine to the
> terminal but when you get to a point of entering data (login, configuration
> scripts, etc) the terminal does not accept any input.  
> 
> So far I have been able to debug to the point where I see that the kernel is
> receiving the characters from the serial.c driver.  But it never echos them
> or does anything else with them.  I will continue to look into this at this
> end.  
> 
> I was also wondering if anyone else has seen this or if a patch is avail for
> this bug??

Just a "me, too!" here.  I've seen some symptoms very similar to this
with the same kernel version.  When I try to run a getty a tty which is
also the console (not sure what happens if it isn't a console) it
freezes up and doesn't respond or echo kernels.  Works on 2.4.2, just
like yours.

>From an strace of getty, it appears to be hanging in ioctl(..., TCSETSW
I hope this gets resolved.  Its more than a little irritating.
-- 
-Steven
In a time of universal deceit, telling the truth is a revolutionary act.
			-- George Orwell