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Error/crash when opening attachment folder and attachments in zim-0.66

To: zim-wiki@xxxxxxxxxxxxxxxxxxx
From: Daniel <quuuux@xxxxxxxxx>
Date: Sat, 29 Apr 2017 14:27:52 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0.1

Hi,

first of all, thanks for the new release!

I've noticed two issues regarding attachment handling on both UbuntuBudgie 17.04 and a recent Arch Linux XFCE install.



Issue 1
=======

Zim's attachment browser opens without error. However launching the OS'sfile browser from the attachment browser open the file browser butcrashes Zim with a SIGSEGV. The same happens when trying to open anattachment, e.g. via double-click in the attachment browser or via theright-click menu.

The issue seems somehow related to how the exit of spawned processes ishandled.

If the spawned process does not fork (e.g. "gvim -f") the crash occursonce the spawned process exits. If the spawned process forks upon start(e.g. "gvim") the crash occurs immediately.


Please find the stacktrace and the debug log attached.


Issue 2 (seems to be related to the issue reported by Paulo)
============================================================

Trying to open an existing attachment folder via the menu "Tools -> OpenAttachments Folder" results in an Assertion Error:


----------------------------------------------------------------------
This is zim 0.66
Platform: posix
Locale: en_US UTF-8
FS encoding: UTF-8
Python: (2, 7, 13, 'final', 0)
Gtk: (2, 24, 31)
Pygtk: (2, 24, 0)
Zim revision is:
  branch: zim-trunk
  revision: 871 jaap.karssenberg@xxxxxxxxx-20170428103155-0xaqvtl2g53epq2y
  date: 2017-04-28 12:31:55 +0200

======= Traceback =======

File "/usr/lib/python2.7/site-packages/zim/actions.py", line 149, indo_activate

    self.__get__(instance, instance.__class__)()
  File "/usr/lib/python2.7/site-packages/zim/actions.py", line 132, in func
    self.func(instance, *args, **kwargs)

File "/usr/lib/python2.7/site-packages/zim/gui/__init__.py", line1351, in open_attachments_folder

    self.open_dir(dir)

File "/usr/lib/python2.7/site-packages/zim/gui/__init__.py", line1206, in open_dir

    self.open_file(dir)

File "/usr/lib/python2.7/site-packages/zim/gui/__init__.py", line1235, in open_file

    assert isinstance(file, (File, Dir))
AssertionError:
----------------------------------------------------------------------

Looking over the code briefly this might be due to "file" being of type"<class 'zim.notebook.layout.FilesAttachmentFolder'>"


  Daniel

Gtk-Message: Failed to load module "canberra-gtk-module"
INFO: This is zim 0.66
DEBUG: Python version is sys.version_info(major=2, minor=7, micro=13, releaselevel='final', serial=0)
DEBUG: Platform is posix
DEBUG: No bzr version-info found
DEBUG: Not running from a source dir
DEBUG: Set XDG_DATA_HOME to /home/test/.local/share
DEBUG: Set XDG_DATA_DIRS to [<Dir: /usr/share/budgie-desktop>, <Dir: /usr/local/share>, <Dir: /usr/share>, <Dir: /var/lib/snapd/desktop>]
DEBUG: Set XDG_CONFIG_HOME to /home/test/.config
DEBUG: Set XDG_CONFIG_DIRS to [<Dir: /etc/xdg/xdg-budgie-desktop>, <Dir: /etc/xdg>]
DEBUG: Set XDG_CACHE_HOME to /home/test/.cache
DEBUG: Registered object line
WARNING: Could not find all icon sizes for the application icon
DEBUG: Starting standalone process
DEBUG: Loading config from: <zim.notebook.info.VirtualFile object at 0x7f0672fcbed0>
DEBUG: Loading config from: /home/test/Notebooks/Notes/notebook.zim
DEBUG: Wrote /home/test/.config/zim/notebooks.list
INFO: Using default notebook: file:///home/test/Notebooks/Notes
DEBUG: Loading config from: /home/test/Notebooks/Notes/notebook.zim
DEBUG: Opening notebook: <zim.notebook.notebook.Notebook object at 0x7f0672e7bd90>
DEBUG: Loading config from: <ConfigFile: /home/test/.config/zim/preferences.conf>
DEBUG: Loading plugin: attachmentbrowser
DEBUG: Loading plugin: calendar
DEBUG: Loading plugin: insertsymbol
DEBUG: Loading plugin: printtobrowser
DEBUG: Gtk version is (2, 24, 31)
DEBUG: Pygtk version is (2, 24, 0)
DEBUG: Loading config from: <ConfigFile: /home/test/.config/zim/style.conf>
DEBUG: Loading config from: /home/test/.cache/zim/notebook-home_test_Notebooks_Notes/state.conf
DEBUG: Accelmap: /home/test/.config/zim/accelmap
INFO: Open page: Home (Home)
DEBUG: Add window: MainWindow
DEBUG: BackgroundCheck started
DEBUG: BackgroundCheck finished
DEBUG: open_file(/home/test/Notebooks/Notes/Home, None)
INFO: Spawning: ['xdg-open', '/home/test/Notebooks/Notes/Home'] (cwd: None)
DEBUG: Process started with PID: 7217

(nautilus:7224): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed

(nautilus:7224): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed
Segmentation fault (core dumped)

Attaching to program: /usr/bin/python, process 8833
[New LWP 8834]
[New LWP 8835]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
c
0x00007fc897f7d18d in poll () at ../sysdeps/unix/syscall-template.S:84
84	../sysdeps/unix/syscall-template.S: No such file or directory.
(gdb) c
Continuing.

Thread 1 "zim" received signal SIGSEGV, Segmentation fault.
subtype_dealloc.lto_priv () at ../Objects/typeobject.c:975
975	../Objects/typeobject.c: No such file or directory.
(gdb) bt
#0  subtype_dealloc.lto_priv () at ../Objects/typeobject.c:975
#1  0x000055f561d7b7d6 in cell_dealloc.lto_priv.186 (op=0x7fc88ae7f7c0)
    at ../Objects/cellobject.c:50
#2  0x000055f561d34ab3 in tupledealloc.lto_priv ()
    at ../Objects/tupleobject.c:222
#3  0x000055f561d59e1f in func_dealloc.lto_priv ()
    at ../Objects/funcobject.c:458
#4  0x000055f561d7b7d6 in cell_dealloc.lto_priv.186 (op=0x7fc88ae77a98)
    at ../Objects/cellobject.c:50
#5  0x000055f561d34ab3 in tupledealloc.lto_priv ()
    at ../Objects/tupleobject.c:222
#6  0x000055f561d59e1f in func_dealloc.lto_priv ()
    at ../Objects/funcobject.c:458
#7  0x00007fc8967feb72 in ?? ()
   from /usr/lib/python2.7/dist-packages/glib/_glib.x86_64-linux-gnu.so
#8  0x00007fc89652acb8 in ?? ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007fc89652b71e in ?? ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007fc89652e2b8 in g_main_context_dispatch ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#11 0x00007fc89652e5e0 in ?? ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#12 0x00007fc89652e902 in g_main_loop_run ()
   from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007fc891824507 in gtk_main ()
   from /usr/lib/x86_64-linux-gnu/libgtk-x11-2.0.so.0
#14 0x00007fc891eec56f in ?? ()
   from /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/_gtk.so
#15 0x000055f561d494ff in call_function (oparg=<optimized out>, 
    pp_stack=0x7ffe90277ac0) at ../Python/ceval.c:4336
---Type <return> to continue, or q <return> to quit---
#16 PyEval_EvalFrameEx () at ../Python/ceval.c:2989
#17 0x000055f561d49b9f in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=0x7ffe90277c10, 
    func=<function at remote 0x7fc88b35bed8>) at ../Python/ceval.c:4437
#18 call_function (oparg=<optimized out>, pp_stack=0x7ffe90277c10)
    at ../Python/ceval.c:4372
#19 PyEval_EvalFrameEx () at ../Python/ceval.c:2989
#20 0x000055f561d49b9f in fast_function (nk=<optimized out>, 
    na=<optimized out>, n=<optimized out>, pp_stack=0x7ffe90277d60, 
    func=<function at remote 0x7fc88b35be60>) at ../Python/ceval.c:4437
#21 call_function (oparg=<optimized out>, pp_stack=0x7ffe90277d60)
    at ../Python/ceval.c:4372
#22 PyEval_EvalFrameEx () at ../Python/ceval.c:2989
#23 0x000055f561d424e5 in PyEval_EvalCodeEx () at ../Python/ceval.c:3584
#24 0x000055f561d5ee0e in function_call.lto_priv ()
    at ../Objects/funcobject.c:523
#25 0x000055f561d30493 in PyObject_Call () at ../Objects/abstract.c:2547
#26 0x000055f561d46fce in ext_do_call (nk=0, na=1, 
    flags=<optimized out>, pp_stack=0x7ffe90278018, 
    func=<function at remote 0x7fc88b35bde8>) at ../Python/ceval.c:4666
#27 PyEval_EvalFrameEx () at ../Python/ceval.c:3028
#28 0x000055f561d424e5 in PyEval_EvalCodeEx () at ../Python/ceval.c:3584
#29 0x000055f561d5ee0e in function_call.lto_priv ()
    at ../Objects/funcobject.c:523
#30 0x000055f561d30493 in PyObject_Call () at ../Objects/abstract.c:2547
#31 0x000055f561d46fce in ext_do_call (nk=0, na=0, 
    flags=<optimized out>, pp_stack=0x7ffe902782c8, 
    func=<function at remote 0x7fc88b35bb90>) at ../Python/ceval.c:4666
#32 PyEval_EvalFrameEx () at ../Python/ceval.c:3028
#33 0x000055f561d424e5 in PyEval_EvalCodeEx () at ../Python/ceval.c:3584
#34 0x000055f561d42289 in PyEval_EvalCode (co=<optimized out>, 
---Type <return> to continue, or q <return> to quit---
    globals=<optimized out>, locals=<optimized out>)
    at ../Python/ceval.c:669
#35 0x000055f561d7213f in run_mod.lto_priv ()
    at ../Python/pythonrun.c:1376
#36 0x000055f561d6d032 in PyRun_FileExFlags ()
    at ../Python/pythonrun.c:1362
#37 0x000055f561d6cb7e in PyRun_SimpleFileExFlags ()
    at ../Python/pythonrun.c:948
#38 0x000055f561d1da02 in Py_Main () at ../Modules/main.c:640
#39 0x00007fc897ea13f1 in __libc_start_main (main=0x55f561d1d330 <main>, 
    argc=3, argv=0x7ffe90278708, init=<optimized out>, 
    fini=<optimized out>, rtld_fini=<optimized out>, 
    stack_end=0x7ffe902786f8) at ../csu/libc-start.c:291
#40 0x000055f561d1d22a in _start ()
(gdb) py-bt
Traceback (most recent call first):
  File "/usr/lib/python2.7/dist-packages/zim/main/__init__.py", line 604, in _run_main_loop
    gtk.main()
  File "/usr/lib/python2.7/dist-packages/zim/main/__init__.py", line 576, in _run_cmd
    self._run_main_loop(cmd)
  File "/usr/lib/python2.7/dist-packages/zim/main/__init__.py", line 554, in run
    self._run_cmd(cmd, args) # test seam
  File "/usr/lib/python2.7/dist-packages/zim/main/__init__.py", line 745, in main
    ZIM_APPLICATION.run(*argv[1:])
  File "/usr/bin/zim", line 52, in <module>
    exitcode = zim.main.main(*argv)