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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: abort in wait_reading_process_input
Date: 24 May 2004 07:59:30 +0200
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> From: Alex Schroeder <alex@emacswiki.org>
> Date: Mon, 24 May 2004 00:47:11 +0200
> 
> When running ERC, the Emacs IRC Client that is not (yet) part of
> Emacs, I'm getting an abort in wait_reading_process_input.
> 
> #0  abort () at emacs.c:434
> #1  0x081881e8 in wait_reading_process_input (time_limit=30, microsecs=0, 
>     read_kbd=-8, do_display=1) at process.c:4590

That seems to indicate that the values of check_connect and
num_pending_connects are inconsistent (the former is non-zero, but the
latter is zero or negative).  So one idea would be to put a watchpoint
on the values of these two variables and trace their changes (assuming
you can easily reproduce the crash with ERC).