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From: Bart Schaefer <schaefer@brasslantern.com>
To: zsh-workers@zsh.org
Subject: Re: Segfault in hist.c
Date: Mon, 11 Jul 2011 07:21:19 -0700	[thread overview]
Message-ID: <110711072119.ZM10154@torch.brasslantern.com> (raw)
In-Reply-To: <87pqlh81yw.fsf@ft.bewatermyfriend.org>

On Jul 11,  1:56pm, Frank Terbeck wrote:
} Subject: Segfault in hist.c
}
} This just came up on IRC:
} 
} zsh% alias foo=bar
} zsh% foo\<RET>
} > <C-c>
} zsh% <RET>
}  hist.c:1165: BUG: chline is NULL in hend()
} [1] 8401 segmentation fault (core dumped)  PS1="zsh%# " zsh -f

Well ... the problem is that the global inbufflags == INP_ALIAS which
means the shell believes it is still expanding "foo".  This causes it
to zero out everything when hbegin() is called, instead of allocating
a new chline etc., so when hend() is finally called ... boom.

What I don't follow is why inbufflags isn't getting cleared properly
on send-break ... because I can't figure out where it's ever cleared
at all.  I'm not very familiar with teh flow of control in input.c.


      parent reply	other threads:[~2011-07-11 14:21 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-07-11 11:56 Frank Terbeck
2011-07-11 13:46 ` Peter Stephenson
2011-07-12  4:00   ` Bart Schaefer
2011-07-11 14:21 ` Bart Schaefer [this message]

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