bug#6681: 23.2; "Save Error" from semantic

bug#6681: 23.2; "Save Error" from semantic

[Tom Tromey]

I have semantic enabled.  I saw this error in *Messages*:

Error Writing Table: #<semanticdb-table ctype.h>
Save Error: "\"Error in macro \\\"name\\\"\"": /home/tromey/.emacs.d/semanticdb/!usr!include!semantic.cache




In GNU Emacs 23.2.1 (i386-redhat-linux-gnu, GTK+ Version 2.20.1)
 of 2010-05-13 on x86-01.phx2.fedoraproject.org
Windowing system distributor `Fedora Project', version 11.0.10802000
configured using `configure  '--build=i386-redhat-linux-gnu' '--host=i386-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/lib' '--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=gtk' 'build_alias=i386-redhat-linux-gnu' 'host_alias=i386-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=at
 om -fasynchronous-unwind-tables''

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: en_US.UTF-8
  value of $XMODIFIERS: nil
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Group

Minor modes in effect:
  erc-list-mode: t
  erc-menu-mode: t
  erc-autojoin-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-track-minor-mode: t
  erc-match-mode: t
  erc-button-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-spelling-mode: t
  erc-truncate-mode: t
  diff-auto-refine-mode: t
  gnus-undo-mode: t
  global-semanticdb-minor-mode: t
  global-semantic-idle-summary-mode: t
  semantic-mode: t
  erc-status-mode: t
  erc-services-mode: t
  erc-networks-mode: t
  erc-irccontrols-mode: t
  erc-noncommands-mode: t
  erc-move-to-prompt-mode: t
  erc-readonly-mode: t
  tooltip-mode: t
  mouse-wheel-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down-mouse-1> <mouse-2> C-x 1 C-s s u p p r e s s 
C-s C-s C-a C-x b * s c r <tab> <return> M-b M-b M-d 
n i l C-e C-j C-c b C-s C-s C-s C-w C-s C-s C-s C-s 
C-s M-b C-h v <return> C-u C-n C-u C-n C-u C-n C-u 
C-n C-p C-p C-p C-x C-e C-u C-u C-p C-x k <return> 
C-c b M-x M-p <return> w a r n i n g - C-a C-k C-/ 
C-e s u p p M-/ C-a C-e r e s s - t y p e s SPC n o 
t SPC d e f i n e d <return> C-x 1 C-o <return> I S-SPC 
t r i e d SPC t o SPC M - x SPC r e p o r t - e m a 
c s - b u g SPC a n d SPC I SPC g o t SPC a n SPC e 
r r o r : <return> <return> C-x b * <tab> D <backspace> 
B <tab> a <tab> <return> C-x h M-w C-x o C-x b <return> 
C-y C-u C-SPC C-z o M-v M-v C-u C-u C-p C-u C-p C-u 
C-p C-u C-p C-n C-SPC C-e M-w C-z o C-p C-p C-e <backspace> 
: <return> <return> C-y C-f C-f C-o C-o H e r e SPC 
i s SPC t h e SPC b a c k t r a c e : C-a C-z o C-v 
C-v C-z o M-> C-r C-g M-{ M-{ M-v M-v C-v C-s w a r 
n C-r C-r C-a M-v <prior> <prior> M-v C-c C-c y e s 
<return> C-] C-c b M-x r e p o r t - e m <tab> <return> 
b <tab> <M-backspace> <tab> b <tab> <return>

Recent messages:
Checking for load-path shadows...done
Making completion list... [2 times]
Mark set [6 times]
Quit
Mark saved where search started
Sending...
Sending via mail...
Sending...done
call-interactively: No recursive edit is in progress
Making completion list... [2 times]

Load-path shadows:
/home/tromey/lib/lisp/rpm-spec-mode hides /usr/share/emacs/site-lisp/rpm-spec-mode
/usr/share/emacs/site-lisp/flim/sha1 hides /usr/share/emacs/23.2/lisp/sha1
/usr/share/emacs/site-lisp/flim/md4 hides /usr/share/emacs/23.2/lisp/md4
/usr/share/emacs/site-lisp/flim/hex-util hides /usr/share/emacs/23.2/lisp/hex-util
/home/tromey/.emacs.d/elpa/css-mode-1.0/css-mode hides /usr/share/emacs/23.2/lisp/textmodes/css-mode
/home/tromey/.emacs.d/elpa/ruby-mode-1.0/ruby-mode hides /usr/share/emacs/23.2/lisp/progmodes/ruby-mode
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-glyph hides /usr/share/emacs/23.2/lisp/nxml/nxml-glyph
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-valid hides /usr/share/emacs/23.2/lisp/nxml/rng-valid
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-maint hides /usr/share/emacs/23.2/lisp/nxml/nxml-maint
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-cmpct hides /usr/share/emacs/23.2/lisp/nxml/rng-cmpct
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-loc hides /usr/share/emacs/23.2/lisp/nxml/rng-loc
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-dt hides /usr/share/emacs/23.2/lisp/nxml/rng-dt
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-parse hides /usr/share/emacs/23.2/lisp/nxml/rng-parse
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-uri hides /usr/share/emacs/23.2/lisp/nxml/rng-uri
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-util hides /usr/share/emacs/23.2/lisp/nxml/rng-util
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-uchnm hides /usr/share/emacs/23.2/lisp/nxml/nxml-uchnm
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-ns hides /usr/share/emacs/23.2/lisp/nxml/nxml-ns
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-rap hides /usr/share/emacs/23.2/lisp/nxml/nxml-rap
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/xsd-regexp hides /usr/share/emacs/23.2/lisp/nxml/xsd-regexp
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-mode hides /usr/share/emacs/23.2/lisp/nxml/nxml-mode
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-enc hides /usr/share/emacs/23.2/lisp/nxml/nxml-enc
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-outln hides /usr/share/emacs/23.2/lisp/nxml/nxml-outln
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-xsd hides /usr/share/emacs/23.2/lisp/nxml/rng-xsd
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-nxml hides /usr/share/emacs/23.2/lisp/nxml/rng-nxml
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-maint hides /usr/share/emacs/23.2/lisp/nxml/rng-maint
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/xmltok hides /usr/share/emacs/23.2/lisp/nxml/xmltok
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-util hides /usr/share/emacs/23.2/lisp/nxml/nxml-util
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/nxml-parse hides /usr/share/emacs/23.2/lisp/nxml/nxml-parse
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-pttrn hides /usr/share/emacs/23.2/lisp/nxml/rng-pttrn
/home/tromey/.emacs.d/elpa/nxml-mode-20041004/rng-match hides /usr/share/emacs/23.2/lisp/nxml/rng-match
/usr/share/emacs/site-lisp/flim/sasl-cram hides /usr/share/emacs/23.2/lisp/net/sasl-cram
/usr/share/emacs/site-lisp/flim/hmac-def hides /usr/share/emacs/23.2/lisp/net/hmac-def
/usr/share/emacs/site-lisp/flim/hmac-md5 hides /usr/share/emacs/23.2/lisp/net/hmac-md5
/usr/share/emacs/site-lisp/flim/sasl hides /usr/share/emacs/23.2/lisp/net/sasl
/usr/share/emacs/site-lisp/flim/sasl-digest hides /usr/share/emacs/23.2/lisp/net/sasl-digest
/usr/share/emacs/site-lisp/flim/sasl-ntlm hides /usr/share/emacs/23.2/lisp/net/sasl-ntlm
/usr/share/emacs/site-lisp/flim/ntlm hides /usr/share/emacs/23.2/lisp/net/ntlm
/home/tromey/.emacs.d/elpa/emms-3.0/tq hides /usr/share/emacs/23.2/lisp/emacs-lisp/tq

Features:
(shadow mail-hist emacsbug idutils compile find-file semantic/complete
eieio-opt bbdb-hooks semantic/tag-write erc-menu erc-join erc-ring
erc-pcomplete pcomplete erc-track erc-match erc-button erc-fill
erc-stamp erc-netsplit erc-spelling erc-truncate semantic/tag-file
diff-mode semantic/db-typecache semantic/find semantic/bovine
semantic/db-file cedet-files semantic/bovine/c semantic/decorate/include
semantic/db-find semantic/db-ref semantic/decorate/mode
semantic/decorate pulse semantic/bovine/c-by semantic/lex-spp
semantic/bovine/gcc semantic/dep semantic/analyze semantic/sort
semantic/scope semantic/analyze/fcn cc-mode cc-fonts cc-menus cc-cmds
cc-styles cc-align cc-engine cc-vars cc-defs w3m-form w3m browse-url
doc-view image-mode w3m-hist w3m-fb w3m-ems w3m-ccl ccl w3m-favicon
w3m-image w3m-proc w3m-util vc-git vc-bzr vc-sccs vc-svn vc-rcs vc-dir
ewoc vc vc-dispatcher flow-fill bbdb-gui gnus-cite smiley ansi-color
gnus-async gnus-bcklg parse-time gnus-ml disp-table auth-source nnml
nndraft nnmh bbdb-gnus bbdb-snarf mail-extr bbdb-com warnings gnus-agent
gnus-srvr gnus-score score-mode nnvirtual gnus-msg gnus-art mm-uu
mml2015 epg-config mm-view smime dig nntp gnus-cache gnus-sum nnoo
gnus-group gnus-undo nnmail mail-source gnus-start gnus-spec gnus-int
gnus-range message idna sendmail ecomplete rfc822 mml mml-sec
password-cache mm-decode mm-bodies mm-encode mail-parse rfc2231 rfc2047
rfc2045 qp ietf-drums mailabbrev gmm-utils mailheader canlock sha1
sha1-el hex-util hashcash gnus-win gnus gnus-ems nnheader gnus-util
netrc mail-utils wid-edit multi-isearch apropos cus-start cus-load
semantic/db-mode semantic/db eieio-base semantic/idle semantic/format
ezimage semantic/tag-ls semantic/ctxt semantic/util-modes semantic/util
semantic semantic/tag semantic/lex semantic/fw eieio byte-opt bytecomp
byte-compile mode-local cedet copyright dabbrev find-func help-mode view
vc-cvs jka-compr flyspell ispell eldoc emms-status emms-lastfm emms-url
url url-proxy url-privacy url-expand url-methods url-history url-cookie
url-util url-parse url-vars mm-util mail-prsvr mailcap emms-browser sort
emms-playlist-sort emms-score emms-player-xine emms-player-mpd tq
emms-playing-time emms-lyrics time-date emms-streams emms-mode-line
emms-cache emms-info-ogginfo emms-info-mp3info emms-info later-do
emms-playlist-mode emms-player-mplayer emms-player-simple
emms-source-playlist emms-source-file dired emms-setup emms emms-compat
gdb-shell-autoloads nxml-enc info weblogger-autoloads xml-rpc-autoloads
package reporter cal-china lunar solar cal-dst cal-bahai cal-islam
cal-hebrew holidays hol-loaddefs appt diary-lib diary-loaddefs cal-menu
easymenu calendar cal-loaddefs uniquify mouse-sel easy-mmode status cl
cl-19 erc-services erc-networks erc-goodies erc erc-backend erc-compat
format-spec thingatpt pp bbdb timezone ange-ftp regexp-opt comint ring
server advice help-fns advice-preload u-vm-color vm-autoloads vm-vars
vm-version bbdb-autoloads tooltip ediff-hook vc-hooks lisp-float-type
mwheel x-win x-dnd font-setting tool-bar dnd fontset image fringe
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mldrag mouse jit-lock font-lock syntax facemenu font-core frame cham
georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao
korean japanese hebrew greek romanian slovak czech european ethiopic
indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple
abbrev loaddefs button minibuffer faces cus-face files text-properties
overlay md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
system-font-setting font-render-setting gtk x-toolkit x multi-tty emacs)

Tom

bug#6681: 23.2; "Save Error" from semantic

[Tom Tromey]

Tom> I have semantic enabled.  I saw this error in *Messages*:
Tom> Error Writing Table: #<semanticdb-table ctype.h>
Tom> Save Error: "\"Error in macro \\\"name\\\"\"": /home/tromey/.emacs.d/semanticdb/!usr!include!semantic.cache

This bug makes Emacs very difficult to use.  It periodically locks up,
with this message in the echo area.  I can C-g out of it, but then I
lose my typeahead.

I tried turning off Semantic with M-x semantic-mode again, but this
message keeps coming back.  I checked, and global-semanticdb-minor-mode
is nil -- I think disabling semantic-mode disabled it.  I expected this
to disable the attempts to save.

This error happened 3 times while composing this message.

I think I am going to have to restart Emacs :-(

Tom

bug#6681: 23.2; "Save Error" from semantic

[Chong Yidong]

Hi Eric,

Have you come across this bug before?  It doesn't look familiar to me.

Tom, could you try to describe what parts of CEDET you enabled?  Are you
using EDE in addition to Semantic?




Tom Tromey <tromey@redhat.com> writes:

> I have semantic enabled.  I saw this error in *Messages*:
>
> Error Writing Table: #<semanticdb-table ctype.h>
> Save Error: "\"Error in macro \\\"name\\\"\"": /home/tromey/.emacs.d/semanticdb/!usr!include!semantic.cache
>
>
>
>
> In GNU Emacs 23.2.1 (i386-redhat-linux-gnu, GTK+ Version 2.20.1)
>  of 2010-05-13 on x86-01.phx2.fedoraproject.org
> Windowing system distributor `Fedora Project', version 11.0.10802000
> configured using `configure  '--build=i386-redhat-linux-gnu' '--host=i386-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/lib' '--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=gtk' 'build_alias=i386-redhat-linux-gnu' 'host_alias=i386-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune=
 atom -fasynchronous-unwind-tables''

bug#6681: 23.2; "Save Error" from semantic

[Eric M. Ludlam]

Yes, I've seen this before.  Here is a thread:

http://permalink.gmane.org/gmane.emacs.cedet/3995

Kai had a hook that expected a buffer to always exist in his c mode 
hook.  Semantic's parser has to create c mode buffers with no file in 
order to build up text from macros to parse it.  The error gets caught 
in the wrong place, and bogus stuff gets into the macro table that only 
turns up later.

The latest semantic-c.el in CEDET/CVS, as the thread suggests,will ask 
if the user wants to debug their hooks if this happens.

semantc-lex-spp.el in CEDET/CVS has a little more error checking there too.

My latest papers for the next 6 months should have arrived at the FSF a 
while ago, so if you need to merge anything, it should be good.

Eric

On 07/30/2010 07:18 PM, Chong Yidong wrote:
> Hi Eric,
>
> Have you come across this bug before?  It doesn't look familiar to me.
>
> Tom, could you try to describe what parts of CEDET you enabled?  Are you
> using EDE in addition to Semantic?
>
>
>
>
> Tom Tromey<tromey@redhat.com>  writes:
>
>> I have semantic enabled.  I saw this error in *Messages*:
>>
>> Error Writing Table: #<semanticdb-table ctype.h>
>> Save Error: "\"Error in macro \\\"name\\\"\"": /home/tromey/.emacs.d/semanticdb/!usr!include!semantic.cache
>>
>>
>>
>>
>> In GNU Emacs 23.2.1 (i386-redhat-linux-gnu, GTK+ Version 2.20.1)
>>   of 2010-05-13 on x86-01.phx2.fedoraproject.org
>> Windowing system distributor `Fedora Project', version 11.0.10802000
>> configured using `configure  '--build=i386-redhat-linux-gnu' '--host=i386-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/lib' '--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=gtk' 'build_alias=i386-redhat-linux-gnu' 'host_alias=i386-redhat-linux-gnu' 'CFLAGS=-DMAIL_USE_LOCKF -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i686 -mtune
 =atom -fasynchronous-unwind-tables''
>

bug#6681: 23.2; "Save Error" from semantic

[Tom Tromey]

I see that Eric has already answered, but for the record...

Chong> Tom, could you try to describe what parts of CEDET you enabled?
Chong> Are you using EDE in addition to Semantic?

I just did M-x semantic-mode with the defaults.
I am not using EDE.

Tom

bug#6681: 23.2; "Save Error" from semantic

[Tom Tromey]

>>>>> "Eric" == Eric M Ludlam <eric@siege-engine.com> writes:

Eric> Kai had a hook that expected a buffer to always exist in his c mode
Eric> hook.  Semantic's parser has to create c mode buffers with no file in
Eric> order to build up text from macros to parse it.

If I understand correctly, then I don't think I have this problem.
I tried making a c-mode buffer without a file, and I didn't see any
error.  I used:

(let ((buf (get-buffer-create "Zardoz")))
  (with-current-buffer buf
    (c-mode)))

I also looked at my various c-mode (and related) hooks and they all do
seem to check buffer-file-name before using it.

Is there something else I ought to try?

Tom

bug#6681: Same here...

[Paulo J. Matos]

I don't know what's the current status of this bug but I am also
experiencing it for some time.

It is, as the OP notes, quite annoying at it locks Emacs up.

Can I provide any further information to help debug this? (but it seems
I have somewhat the same config as the OP)

-- 
PMatos