abort in TERM=xterm-color

abort in TERM=xterm-color

[Harry Putnam]

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In GNU Emacs 21.2.1 (i386-unknown-openbsd3.0)
 of 2002-04-10 on callisto
configured using `configure  --prefix=/home/reader/local --with-x=no'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

This bug occurs on an openBSD os, when in console mode with TERM 
set to xterm-color or linux.

After starting emacs, typing M-x list-colors-display will invoke a full
abort (Fatal error (6). Abort (core dumped)

OpenBSD uses termcap not terminfo so I have included the output of
tset -S in case it is helpfull.  Also the core file produced by such an 
abort with TERM set to xterm-color can be downloaded here:

http://www.jtan.com/~reader/exp/emacs.core_xterm-color_041002

[callisto] > tset -S
Erase is delete.                                                        
Kill is control-U (^U).
Interrupt is control-C (^C).
nxterm nxterm|xterm-color:NC@:op=\E[m:am:bs:km:mi:ms:xn:co#80:it#8:li#24:*6=\E[4~:@0=\E[1~:@7=\EOF:AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:F1=\E[23~:F2=\E[24~:F3=\E[25~:F4=\E[26~:F5=\E[28~:F6=\E[29~:F7=\E[31~:F8=\E[32~:F9=\E[33~:FA=\E[34~:Km=\E[M:LE=\E[%dD:RI=\E[%dC:UP=\E[%dA:ae=^O:al=\E[L:as=^N:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:cm=\E[%i%d;%dH:cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:dl=\E[M:do=^J:eA=\E)0:ei=\E[4l:ho=\E[H:im=\E[4h:is=\E7\E[r\E[m\E[?7h\E[?1;3;4;6l\E[4l\E8\E>:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:k5=\E[15~:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:k;=\E[21~:kD=\E[3~:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=^H:kd=\EOB:ke=\E[?1l\E>:kh=\EOH:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:ku=\EOA:le=^H:md=\E[1m:me=\E[m:ml=\El:mr=\E[7m:mu=\Em:nd=\E[C:rc=\E8:rs=\E7\E[r\E8\E[m\E[?7h\E[?1;3;4;6l\E[4l\E>:sc=\E7:se=\E[m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:te=\E[2J\E[?47l\E8:ti=\E7\E[?47h:u6=\E[%i%d;%dR:u7=\E[6n:u8=\E[?1;2c:u9=\E[c:ue=\E[m:up=\E[A:us=\E[4m:Co#8:NC#3:pa#64:AB=\E[4%p1%dm:AF=\E[3%p1%dm:op=!

\E[37;40m:



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Re: abort in TERM=xterm-color

[Eli Zaretskii]

> From: Harry Putnam <reader@jtan.com>
> Date: Wed, 10 Apr 2002 15:32:28 -0400 (EDT)
> 
> This bug occurs on an openBSD os, when in console mode with TERM 
> set to xterm-color or linux.
> 
> After starting emacs, typing M-x list-colors-display will invoke a full
> abort (Fatal error (6). Abort (core dumped)

I think this is the problem described in etc/PROBLEMS under "Emacs
aborts inside the function `tparam1'".

Re: abort in TERM=xterm-color

[Harry Putnam]

"Eli Zaretskii" <eliz@is.elta.co.il> writes:

>> From: Harry Putnam <reader@jtan.com>
>> Date: Wed, 10 Apr 2002 15:32:28 -0400 (EDT)
>> 
>> This bug occurs on an openBSD os, when in console mode with TERM 
>> set to xterm-color or linux.
>> 
>> After starting emacs, typing M-x list-colors-display will invoke a full
>> abort (Fatal error (6). Abort (core dumped)
>
> I think this is the problem described in etc/PROBLEMS under "Emacs
> aborts inside the function `tparam1'".

Eli, You've mentioned elswhere how emacs will fall back on its own
tparm that doesn't support openbsd termcap entries.  I wonder if there
is a readson that particular tparm is used as against a more recent
one that does support those termcap entries.

Re: abort in TERM=xterm-color

[Eli Zaretskii]

> From: Harry Putnam <reader@newsguy.com>
> Date: Thu, 11 Apr 2002 13:34:45 -0700
> 
> >> After starting emacs, typing M-x list-colors-display will invoke a full
> >> abort (Fatal error (6). Abort (core dumped)
> >
> > I think this is the problem described in etc/PROBLEMS under "Emacs
> > aborts inside the function `tparam1'".
> 
> Eli, You've mentioned elswhere how emacs will fall back on its own
> tparm that doesn't support openbsd termcap entries.  I wonder if there
> is a readson that particular tparm is used as against a more recent
> one that does support those termcap entries.

The offending termcap entry uses features that are outside the termcap
spec (these features were borrowed from terminfo, which is a much more
versatile and complex facility).  Adding support for those features to
GNU termcap is a lot of work, so when this problem was first reported,
the decision was not to invest all that work, and instead tell users
to upgrade their curses library.