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Re: gdb: cannot open /dev/pts/1 : Input Output error

From: Andrew Lees
Subject: Re: gdb: cannot open /dev/pts/1 : Input Output error
Date: Tue, 4 Sep 2001 09:51:33 +1000

On Mon,  3 Sep 2001 08:29, Stefaan Willaert wrote:
> Hi,
> You once posted a problem regarding ddd on Suse Linux 6.2
> in the DDD-problems thread:
> "
> I got the following error when starting ddd 3.1.4 together
> with gdb 4.18. on a Suse Linux 6.2
> gdb: cannot open /dev/pts/1: Eingabe-/Ausgabefehler
> gdb: child communication setup failed"
> I've got exactly the same problem.
> Were you able to solve this, if so I would appreciate if you
> let me know.
> Regards,
> Stefaan

I seem to recall having this problem a number of years ago.  I suggest either:

1. Close all apps using pseudo terminals (including xdm etc) and unmount 
/dev/pts - things should work fine from then on.

2. compile the kernel for old style ptys, and change the initialisation 
accordingly (/dev/pts won't be mountable).


Andy Lees.

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