Subject: Re: bug#17386: 24.3.90; emacs_abort in cmcheckmagic

From: Eli Zaretskii <[email-masked]>
Date: Sat, 03 May 2014 11:53:39 +0300

> From: Andreas Schwab <[email-masked]>
> Cc: Nicolas Richard <[email-masked]>,  [email-masked]
> Date: Sat, 03 May 2014 10:21:22 +0200
> 
> Eli Zaretskii <[email-masked]> writes:
> 
> > So perhaps the problem is that Emacs takes the screen dimensions only
> > at startup and when it gets the SIGWINCH signal, and tmux somehow
> > makes these changes without sending SIGWINCH?
> 
> The signal is generated by the kernel, upon the submit of the TIOCSWINSZ
> ioctl, so it is impossible to change the size without generating the
> signal.

Can we be sure that tmux reserves its line via that ioctl?