Re: TTY lockup's (Kernel V2.0.32)

Bill Hawes (whawes@star.net)
Tue, 02 Dec 1997 13:35:56 -0500


Karl Vogel wrote:

> Then I noticed kernel V2.0.31 included some reworked tty code by Bill Hawes.
> So I installed the lastest kernel to make sure I was running up to date code.
> (Kernel V2.0.32).
>
> This fixed the problem partly. Now if I send more than 256 characters to a
> login process on a telnetd session, it doesn't lock up anymore. However I still
> notice a locked up login process every now and then.

Hi Karl,
When I did the tty/pty changes I noticed that there appeared to be other
possible but very unlikely conditions that could lead to locked ttys.
With a normal user typing commands it would probably never happen, but I
hadn't considered the case of a modem spewing garbage.

I had a patch for this at one point, and will try to find it and see if
it still applies to the 2.0.32 tty code.

Regards,
Bill