* bug#29831: 25.2; ansi-term - more graceful error handling?
@ 2017-12-24 6:26 Live System User
2017-12-30 11:06 ` Eli Zaretskii
0 siblings, 1 reply; 2+ messages in thread
From: Live System User @ 2017-12-24 6:26 UTC (permalink / raw)
To: 29831
Hi,
I'm wondering if ansi-term could handle the following
error more gracefully:
Debugger entered--Lisp error: (error "Invalid face" unspecified)
internal-get-lisp-face-attribute(unspecified :foreground nil)
face-attribute(unspecified :foreground nil default)
face-foreground(unspecified nil default)
term-handle-colors-array(1)
term-handle-ansi-escape(#<process *ansi-term*> 109)
term-emulate-terminal(#<process *ansi-term*>
"[1;33mliveuser@localhost[0m:[1;32m~ [0m$ ")
Currently, when this error ocurrs, ansi-term starts but
doesn't display the command prompt nor can you interact
with the ansi-term.
You can "C-x k" (kill-buffer) and thus kill the
ansi-term process.
Thanks.
In GNU Emacs 25.2.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.20.10)
of 2017-05-02 built on buildvm-17.phx2.fedoraproject.org
Windowing system distributor 'Fedora Project', version 11.0.11803000
Configured using:
'configure --build=x86_64-redhat-linux-gnu
--host=x86_64-redhat-linux-gnu --program-prefix=
--disable-dependency-tracking --prefix=/usr --exec-prefix=/usr
--bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc
--datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib64
--libexecdir=/usr/libexec --localstatedir=/var
--sharedstatedir=/var/lib --mandir=/usr/share/man
--infodir=/usr/share/info --with-dbus --with-gif --with-jpeg --with-png
--with-rsvg --with-tiff --with-xft --with-xpm --with-x-toolkit=gtk3
--with-gpm=no --with-xwidgets --with-modules
build_alias=x86_64-redhat-linux-gnu host_alias=x86_64-redhat-linux-gnu
'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Werror=format-security
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector-strong
--param=ssp-buffer-size=4 -grecord-gcc-switches
-specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -m64 -mtune=generic'
LDFLAGS=-Wl,-z,relro
PKG_CONFIG_PATH=:/usr/lib64/pkgconfig:/usr/share/pkgconfig'
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND DBUS GCONF GSETTINGS NOTIFY
ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 MODULES XWIDGETS
Important settings:
value of $LANG: en_US.UTF-8
value of $XMODIFIERS: @im=ibus
locale-coding-system: utf-8-unix
Major mode: Messages
Minor modes in effect:
gnus-desktop-notify-mode: t
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
buffer-read-only: t
line-number-mode: t
transient-mark-mode: t
Recent messages:
<mouse-6> is undefined
mwheel-scroll: Beginning of buffer
C-c C-g is undefined
Quit
Entering debugger...
Back to top level
Load-path shadows:
None found.
Features:
(shadow emacsbug misearch multi-isearch debug eieio-opt speedbar
sb-image ezimage dframe find-func pp thingatpt mailalias smtpmail
sendmail sort gnus-cite smiley ansi-color mail-extr gnus-bcklg qp
gnus-async gnus-ml disp-table cursor-sensor nndraft nnmh nndoc
mm-archive jka-compr timezone url-http url-gw url-cache url-auth
url-handlers utf-7 rfc2104 nnfolder nnagent nnml network-stream nsm
starttls gnus-agent gnus-srvr gnus-score score-mode nnvirtual gnus-msg
gnus-cache gnus-demon nntp gnus-desktop-notify easy-mmode notifications
dbus xml epa-file epa derived nnreddit mm-url url url-proxy url-privacy
url-expand url-methods url-history url-cookie url-domsuf url-util
url-parse auth-source cl-seq eieio eieio-core cl-macs url-vars json map
seq byte-opt bytecomp byte-compile cl-extra cconv gnus-art mm-uu mml2015
mm-view mml-smime smime dig mailcap cl gv sieve sieve-mode sieve-manage
nnir gnus-sum gnus-group gnus-undo gnus-start gnus-cloud nnimap nnmail
mail-source tls gnutls utf7 netrc parse-time gnus-spec gnus-int
gnus-range message dired format-spec rfc822 mml mml-sec password-cache
epg epg-config mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047
rfc2045 ietf-drums mailabbrev gmm-utils mailheader gnus-win gnus
gnus-ems wid-edit nnoo nnheader gnus-util mm-util help-fns help-mode
easymenu cl-loaddefs pcase cl-lib mail-prsvr mail-utils time-date
mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel x-win term/common-win x-dnd tool-bar dnd fontset
image regexp-opt fringe tabulated-list newcomment elisp-mode lisp-mode
prog-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cl-generic cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech
european ethiopic indian cyrillic chinese charscript case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer cl-preloaded nadvice
loaddefs button faces cus-face macroexp files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote dbusbind inotify dynamic-setting
system-font-setting font-render-setting xwidget-internal move-toolbar
gtk x-toolkit x multi-tty make-network-process emacs)
Memory information:
((conses 16 332199 63287)
(symbols 48 126345 0)
(miscs 40 279 753)
(strings 32 109104 5999)
(string-bytes 1 3861995)
(vectors 16 28451)
(vector-slots 8 943111 57984)
(floats 8 423 1271)
(intervals 56 7194 52)
(buffers 976 51)
(heap 1024 78143 29654))
^ permalink raw reply [flat|nested] 2+ messages in thread
* bug#29831: 25.2; ansi-term - more graceful error handling?
2017-12-24 6:26 bug#29831: 25.2; ansi-term - more graceful error handling? Live System User
@ 2017-12-30 11:06 ` Eli Zaretskii
0 siblings, 0 replies; 2+ messages in thread
From: Eli Zaretskii @ 2017-12-30 11:06 UTC (permalink / raw)
To: Live System User; +Cc: 29831
> From: Live System User <nyc4bos@aol.com>
> Date: Sun, 24 Dec 2017 01:26:50 -0500
>
> I'm wondering if ansi-term could handle the following
> error more gracefully:
>
> Debugger entered--Lisp error: (error "Invalid face" unspecified)
> internal-get-lisp-face-attribute(unspecified :foreground nil)
> face-attribute(unspecified :foreground nil default)
> face-foreground(unspecified nil default)
> term-handle-colors-array(1)
> term-handle-ansi-escape(#<process *ansi-term*> 109)
> term-emulate-terminal(#<process *ansi-term*>
> "[1;33mliveuser@localhost[0m:[1;32m~ [0m$ ")
This sounds like a bug, but can you help me understand how did that
'unspecified' come into existence? It looks like it comes from this
code:
(face-foreground
(elt ansi-term-color-vector term-ansi-current-color)
nil 'default)
but ansi-term-color-vector doesn't include any 'unspecified', and in
fact there's no "unspecified" anywhere in term.el. What am I missing?
Does it help to customize term-default-fg-color to some non-nil value?
^ permalink raw reply [flat|nested] 2+ messages in thread
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2017-12-24 6:26 bug#29831: 25.2; ansi-term - more graceful error handling? Live System User
2017-12-30 11:06 ` Eli Zaretskii
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