Trouble running "gufw"

CarterCox · 2018-02-28 20:44:44

When running

# gufw

I get this: https://pastebin.com/mb3kBVMA

All dependencies are satisfied but I don't recognize the error messages.

I have seen users getting it in Wayland, but I'm using X (Xfce). So I don't see what could be happening here...

I'm using the LTS kernel.

Thanks for the help!

jasonwryan · 2018-02-28 21:10:59

https://wiki.archlinux.org/index.php/Ru … ps_as_root

Moving to NC...

CarterCox · 2018-02-28 22:50:24

Tried

$ gksu gufw

and I get the same error.

Then I try

$ bashrun --su gufw

and I get:

xterm: cannot load font "-Misc-Fixed-medium-R-*-*-13-120-75-75-C-120-ISO10646-1"
xterm: cannot load font "-misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso10646-1"

I tried installing "xorg-fonts-misc" and I still get the same error.

Any ideas on what it could be?

Also, I would like to run the Firewall from the main Xfce settings. Is there any way to get that done?

Last edited by CarterCox (2018-02-28 22:50:42)

Head_on_a_Stick · 2018-02-28 22:58:53

Try

pkexec gufw

seth · 2018-02-28 23:10:40

Since there's a "/bin/gufw-pkexec" call I assume it's not supposed to run as root at all (what is good, you should not run GUI - or any complex - processes as root)

Head_on_a_Stick · 2018-03-01 08:55:45

Tried this in my Arch box (it lives!) and it appears that this is needed:

xhost +local:
sudo gufw

seth wrote:

you should not run GUI - or any complex - processes as root

+1

seth · 2018-03-01 12:26:25

"xhost +local" grants any local user (including root, sudo) access to your X11 server - it should certainly not be required for regular functionality.
Because of the "gufw-pkexec" invocation I'd say the thing requires a polkit agent (to ask for credentials)?

Head_on_a_Stick · 2018-03-01 12:40:23

seth wrote:

I'd say the thing requires a polkit agent (to ask for credentials)?

I'm running GNOME (with their polkit agent) and it still just segfaults unless `xhost +local:` is used, same error as the OP:

/usr/bin/gufw-pkexec: line 13:  1114 Segmentation fault      (core dumped) python3 ${LOCATIONS[${i}]} $1

That's with `sudo gufw` or plain `gufw`, as advised by the `gufw-pkexec` dialogue box.

Is this a bug then?

seth · 2018-03-01 12:50:59

Definitively - it also dumps a core, so check coredumpctl on details why it segfaults.
Running the process as root just side-steps the issue because you can spare polkit invocation.

Head_on_a_Stick · 2018-03-01 13:01:29

Here you go seth:

Xanadu: ~ $ coredumpctl info 1150 --no-pager
           PID: 1150 (python3)
           UID: 0 (root)
           GID: 0 (root)
        Signal: 11 (SEGV)
     Timestamp: Thu 2018-03-01 12:37:17 GMT (22min ago)
  Command Line: python3 /usr/lib/python3.6/site-packages/gufw/gufw.py empty
    Executable: /usr/bin/python3.6
 Control Group: /user.slice/user-1000.slice/user@1000.service/gnome-terminal-server.service
          Unit: user@1000.service
     User Unit: gnome-terminal-server.service
         Slice: user-1000.slice
     Owner UID: 1000 (empty)
       Boot ID: 1fc7126df26542b2bda43dc648a0f195
    Machine ID: bad175799dd742bea7f3d5026710159e
      Hostname: Xanadu
       Storage: /var/lib/systemd/coredump/core.python3.0.1fc7126df26542b2bda43dc648a0f195.1150.1519907837000000.lz4 (inaccessible)
       Message: Process 1150 (python3) of user 0 dumped core.
                
                Stack trace of thread 1150:
                #0  0x00007f96332c7809 n/a (libgtk-3.so.0)
                #1  0x00007f96331559c9 n/a (libgtk-3.so.0)
                #2  0x00007f963316bc85 n/a (libgtk-3.so.0)
                #3  0x00007f9633156d7d n/a (libgtk-3.so.0)
                #4  0x00007f963316bbc0 n/a (libgtk-3.so.0)
                #5  0x00007f963316bc16 n/a (libgtk-3.so.0)
                #6  0x00007f9633157714 n/a (libgtk-3.so.0)
                #7  0x00007f963a709c98 g_type_create_instance (libgobject-2.0.so.0)
                #8  0x00007f963a6e9729 n/a (libgobject-2.0.so.0)
                #9  0x00007f963a6eaf6d g_object_new_with_properties (libgobject-2.0.so.0)
                #10 0x00007f963a6eba22 g_object_new (libgobject-2.0.so.0)
                #11 0x00007f96331743ab n/a (libgtk-3.so.0)
                #12 0x00007f963335fafa n/a (libgtk-3.so.0)
                #13 0x00007f963a709c98 g_type_create_instance (libgobject-2.0.so.0)
                #14 0x00007f963a6e9729 n/a (libgobject-2.0.so.0)
                #15 0x00007f963a6eb25d g_object_newv (libgobject-2.0.so.0)
                #16 0x00007f96330fa865 n/a (libgtk-3.so.0)
                #17 0x00007f96330fbef6 n/a (libgtk-3.so.0)
                #18 0x00007f96330fd972 n/a (libgtk-3.so.0)
                #19 0x00007f963a40d4e2 n/a (libglib-2.0.so.0)
                #20 0x00007f963a40e3e8 g_markup_parse_context_parse (libglib-2.0.so.0)
                #21 0x00007f96330fde52 n/a (libgtk-3.so.0)
                #22 0x00007f96330f77fe gtk_builder_add_from_file (libgtk-3.so.0)
                #23 0x00007f963a1bc1c8 ffi_call_unix64 (libffi.so.6)
                #24 0x00007f963a1bbc2a ffi_call (libffi.so.6)
                #25 0x00007f963ab88b34 n/a (_gi.cpython-36m-x86_64-linux-gnu.so)
                #26 0x00007f963ab8a7b8 n/a (_gi.cpython-36m-x86_64-linux-gnu.so)
                #27 0x00007f963ab7e54a n/a (_gi.cpython-36m-x86_64-linux-gnu.so)
                #28 0x00007f963d2f8ee5 _PyObject_FastCallDict (libpython3.6m.so.1.0)
                #29 0x00007f963d315e4e n/a (libpython3.6m.so.1.0)
                #30 0x00007f963d2a9b5a _PyEval_EvalFrameDefault (libpython3.6m.so.1.0)
                #31 0x00007f963d31536b _PyFunction_FastCallDict (libpython3.6m.so.1.0)
                #32 0x00007f963d2f90bf _PyObject_FastCallDict (libpython3.6m.so.1.0)
                #33 0x00007f963d2f9e03 _PyObject_Call_Prepend (libpython3.6m.so.1.0)
                #34 0x00007f963d2f9eeb PyObject_Call (libpython3.6m.so.1.0)
                #35 0x00007f963d31d29b n/a (libpython3.6m.so.1.0)
                #36 0x00007f963d345284 n/a (libpython3.6m.so.1.0)
                #37 0x00007f963d2f8ee5 _PyObject_FastCallDict (libpython3.6m.so.1.0)
                #38 0x00007f963d315e4e n/a (libpython3.6m.so.1.0)
                #39 0x00007f963d2a9b5a _PyEval_EvalFrameDefault (libpython3.6m.so.1.0)
                #40 0x00007f963d3162c8 PyEval_EvalCodeEx (libpython3.6m.so.1.0)
                #41 0x00007f963d2a96ec PyEval_EvalCode (libpython3.6m.so.1.0)
                #42 0x00007f963d37bf84 n/a (libpython3.6m.so.1.0)
                #43 0x00007f963d37e751 PyRun_FileExFlags (libpython3.6m.so.1.0)
                #44 0x00007f963d37e954 PyRun_SimpleFileExFlags (libpython3.6m.so.1.0)
                #45 0x00007f963d37470b Py_Main (libpython3.6m.so.1.0)
                #46 0x000055f86fba4c39 main (python3.6)
                #47 0x00007f963d70ef4a __libc_start_main (libc.so.6)
                #48 0x000055f86fba4dba _start (python3.6)
Xanadu: ~ $

^ I'm not a programmer so I suspect that you can make more sense of that

Should I submit a bug report upstream and attach that trace or is there more we should do?

loqs · 2018-03-01 13:25:09

The arch gtk package like most is stripped of debug symbols so I do not think upstream will be able to make much of that backtrace and will ask for another with debug symbols.
Debug_-_Getting_Traces I do not know of any repo supplying gtk3 packages with debug info so you will have to build you own sorry.

Head_on_a_Stick · 2018-03-01 13:26:56

loqs wrote:

Debug_-_Getting_Traces I do not know of any repo supplying gtk3 packages with debug info so you will have to build you own sorry.

Ah, yes, I forgot about that — thanks!

I should be able to build one in my OBS repository I think...

seth · 2018-03-01 13:37:54

echo $DBUS_SESSION_BUS_ADDRESS

https://bugs.archlinux.org/task/52599
https://bugs.archlinux.org/task/50891

Head_on_a_Stick · 2018-03-01 13:43:12

Xanadu: ~ $ echo $DBUS_SESSION_BUS_ADDRESS
unix:path=/run/user/1000/bus
Xanadu: ~ $

Does that help? I'm a bit lost here tbh

seth · 2018-03-01 13:48:54

No, you got a legit DBUS, so you're (most likely) not running into the same problem as https://bugs.archlinux.org/task/50891
https://bugs.archlinux.org/task/52599#comment155392 however suggests the entire process runs as root all the time anyway ...

Head_on_a_Stick · 2018-03-01 14:01:48

Update: if I start an openbox-session with this in ~/.config/openbox/autostart:

/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 &

And `sudo gufw` then works.

I think it crashes in GNOME because Wayland won't allow the pkexec call but this is mostly a guess

seth · 2018-03-01 15:38:53

Scratch the sudo - the program is supposed to leverage itself using polkit. Sudo removes that requirement.
Not sure about wayland relation, because in doubt xhost would have no impact here itfp.

Head_on_a_Stick · 2018-03-01 15:45:23

seth wrote:

Scratch the sudo - the program is supposed to leverage itself using polkit

OK, this works in a fresh openbox session (nothing in the autostart file):

/usr/lib/policykit-1-gnome/polkit-gnome-authentication-agent-1 &
gufw

That brings up gufw's own authentication dialogue and the program runs.

CarterCox · 2018-03-02 23:43:23

Ok guys, so, I should setup polkit to run this? And autorstart gksu? Or did I get it wrong?

Also, for Wayland users, I read somewhere gufw was not possible to run as root on Wayland, some ufw developer said so.

Head_on_a_Stick · 2018-03-03 23:53:46

CarterCox wrote:

I should setup polkit to run this?

Yes.

McQueen · 2018-03-05 05:04:44

///// Content Removed /////

Last edited by McQueen (2018-03-07 01:41:29)

Head_on_a_Stick · 2018-03-05 07:55:09

^ Is it too much to ask that you test that before posting?

I'm not in Arch atm but I seem to recall that brings up a Gtk dialogue asking the user to run `sudo gufw` or plain `gufw` instead.

As I have already shown, a polkit authentication agent needs to be running before passing the plain `gufw` command to allow the program to be launched under the aegis of polkit, as the developers intend.

McQueen · 2018-03-05 21:06:58

Head_on_a_Stick wrote:

^ Is it too much to ask that you test that before posting?
I'm not in Arch atm but I seem to recall that brings up a Gtk dialogue asking the user to run `sudo gufw` or plain `gufw` instead.
As I have already shown, a polkit authentication agent needs to be running before passing the plain `gufw` command to allow the program to be launched under the aegis of polkit, as the developers intend.

Yes -- it works on my system. Just followed this comment from Bug #52599:

GUFW Work-around

Head_on_a_Stick · 2018-03-05 22:00:01

^ But I had it working in my Arch box without editing any system files, it just needed an authentication agent running.

The package maintainer was also able to launch gufw, according to that bug report.

The "solution" in the linked launchpad bug report is to allow root access to X, which is a bad idea (see #6 & #7).

McQueen · 2018-03-06 04:57:33

///// Content Removed /////

Last edited by McQueen (2018-03-07 01:40:59)

Arch Linux

#1 2018-02-28 20:44:44

Trouble running "gufw"

#2 2018-02-28 21:10:59

Re: Trouble running "gufw"

#3 2018-02-28 22:50:24

Re: Trouble running "gufw"

#4 2018-02-28 22:58:53

Re: Trouble running "gufw"

#5 2018-02-28 23:10:40

Re: Trouble running "gufw"

#6 2018-03-01 08:55:45

Re: Trouble running "gufw"

#7 2018-03-01 12:26:25

Re: Trouble running "gufw"

#8 2018-03-01 12:40:23

Re: Trouble running "gufw"

#9 2018-03-01 12:50:59

Re: Trouble running "gufw"

#10 2018-03-01 13:01:29

Re: Trouble running "gufw"

#11 2018-03-01 13:25:09

Re: Trouble running "gufw"

#12 2018-03-01 13:26:56

Re: Trouble running "gufw"

#13 2018-03-01 13:37:54

Re: Trouble running "gufw"

#14 2018-03-01 13:43:12

Re: Trouble running "gufw"

#15 2018-03-01 13:48:54

Re: Trouble running "gufw"

#16 2018-03-01 14:01:48

Re: Trouble running "gufw"

#17 2018-03-01 15:38:53

Re: Trouble running "gufw"

#18 2018-03-01 15:45:23

Re: Trouble running "gufw"

#19 2018-03-02 23:43:23

Re: Trouble running "gufw"

#20 2018-03-03 23:53:46

Re: Trouble running "gufw"

#21 2018-03-05 05:04:44

Re: Trouble running "gufw"

#22 2018-03-05 07:55:09

Re: Trouble running "gufw"

#23 2018-03-05 21:06:58

Re: Trouble running "gufw"

#24 2018-03-05 22:00:01

Re: Trouble running "gufw"

#25 2018-03-06 04:57:33

Re: Trouble running "gufw"

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