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bug#26310: 25.1; Emacsclient to emacs --daemon frame/connection error


From: Live System User
Subject: bug#26310: 25.1; Emacsclient to emacs --daemon frame/connection error
Date: Thu, 30 Mar 2017 10:31:12 -0400

Hi,

        I currently have an Emacs daemon that wont popup a new
        emacsclient frame initially using the emacsclient binary.

        Executing from the command line:

             emacsclient -c file.txt

        displays a quick momentary frame that disappears and shows
        on the command line:

           $ emacsclient -c file.txt
           emacsclient: can't find socket; have you started the server?
           To start the server in Emacs, type "M-x server-start".
           Waiting for Emacs...
           *ERROR*: Wrong type argument: stringp, nil
           $ 


        To try to track down why this was happening I "spoke" the
        Emacs server protocol to the Emacs daemon, created a GUI
        frame and enabled "debug-on-error" and server logging.

        Trying to connect again using "emacsclient -c", I see again
        a momentary newly-created frame that quickly disappears and
        I see in the " *server*" buffer (from my previously-created
        frame of the Daemon):

Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Status changed to open: open 
from 127.0.0.1
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: server-delete-client
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Received -auth
<ommitted> -env TERM=xterm-256color [...] -dir /home/liveuser/ -display :0 -tty 
/dev/pts/1 xterm-256color -window-system -file file.txt 
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Authentication successful
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Sent -emacs-pid 10797
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: New file: 
/home/liveuser/file.txt 
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: #<frame address@hidden 
0x710d2e8> created
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Sent -error 
Wrong&_type&_argument:&_stringp,&_nil
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Wrong type argument: 
stringp, nil
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Status changed to closed: 
connection broken by remote peer
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: server-delete-client
Thu Mar 30 06:43:33 2017 server <127.0.0.1:44966>: Deleted

    There's nothing new in the *Messages* buffer except:
    
        Debug on Error enabled globally

    Executing "emacsclient -t" yields the same error results.


    Strangely enough, although I get the same error message on the
    command line and very similar error messages in the " *server*"
    buffer:
    
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: New file: 
/home/liveuser/file.txt 
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: #<frame address@hidden 
0x3a83450> created
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: Sent -error 
Wrong&_type&_argument:&_stringp,&_nil
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: Wrong type argument: 
stringp, nil
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: Status changed to closed: 
connection broken by remote peer
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: server-delete-client
Thu Mar 30 08:36:39 2017 server <127.0.0.1:45582>: Deleted


    it DOES popup a new frame if I execute "emacsclient -nc file.txt"
    that doesn't disappear -- although it DOES NOT CREATE the file.txt
    buffer/window -- a new frame is created just as if I executed
    "C-x 5 2" `(make-frame-command)'.

    So a couple of questions this raise for me:
    
    What is different about using "--no-wait" with emacsclient that
    one is able to get past invocation errors (and at least get a
    new frame) that you can't get without "--no-wait"?

    What is the cause of the "stringp" error and why doesn't
    "debug-on-error" give further diagnostics on its cause?
    The " *server*" buffer logging information appears to show
    the correct passing of the protocol parameters so what is
    the argument(s) that the Emacs server belives is nil or
    missing?

    Although the new frame popped up (ONLY when using "--no-wait"),
    why didn't the specified buffer/window  get created?

    This just started happening about 4 hours ago although my
    "emacs --daemon" has been up for 3 days with frequent use
    in that timespan.
    
    How cam I track these errors down?

    I can leave the Emacs daemon up for a while.

    Thanks.




In GNU Emacs 25.1.1 (x86_64-redhat-linux-gnu, GTK+ Version 3.20.9)
 of 2016-10-13 built on buildvm-05.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 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'

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ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
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Important settings:
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
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Major mode: Summary

Minor modes in effect:
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  mouse-wheel-mode: t
  tool-bar-mode: t
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  file-name-shadow-mode: t
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Recent messages:
nnimap read 105k from imap.aim.com
nnimap read 113k from imap.aim.com
nnimap read 128k from imap.aim.com
Fetching headers for nnimap+aol:INBOX...done
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Making completion list...

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Memory information:
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 (symbols 48 32156 42)
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 (strings 32 60692 34416)
 (string-bytes 1 1913637)
 (vectors 16 28888)
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