Compiz dbus error message

[smurf]

Xenial Xerus 16.04 Mate, video card nVidia GEForce 210 with driver Nouveau, cpu Amd 64 dual core, 4 GB RAM.

If I start compiz --replace from a terminal I see a lot of this messages:

process 17122: arguments to dbus_message_iter_append_basic() were incorrect, assertion "*bool_p == 0 || *bool_p == 1" failed in file ../../dbus/dbus-message.c line 2727.

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[Michael Kogan (michael-kogan)]

Seeing this when trying to activate the D-Bus plugin on two Manjaro machines running Compiz 0.9.13.1. Another Manjaro machine and an Arch Linux machine show no such problem. So, smurf, a workaround is to just disable the D-Bus plugin in the Compiz settings. However, I'd like to use the D-Bus plugin. Will try to figure out what the cause of the crash actually is and report later.

[Nicolas Krzywinski (nsk7even)]

Same for me on an 18.04 system:
- Compiz works, if the D-Bus plugin is disabled
- It crashes instantly as soon as it is enabled via settings manager
- It crashes at start as well, if the D-Bus plugin is enabled prior

Compiz 0.9.13.1
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
Linux hostname 4.15.0-34-generic #37-Ubuntu SMP Mon Aug 27 15:21:48 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux

Using the "radeon" module with:
VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cedar [Radeon HD 5000/6000/7350/8350 Series]

I would like to use the D-Bus plugin for easystroke :)

[Nicolas Krzywinski (nsk7even)]

There is a different line in dbus-message.c reported for me:

dbus[10690]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "*bool_p == 0 || *bool_p == 1" failed in file ../../../dbus/dbus-message.c line 2777.
This is normally a bug in some application using the D-Bus library.

  D-Bus not built with -rdynamic so unable to print a backtrace

[Daniel Kondor (kondor-dani)]

Hi All,

I believe I'm having the same bug as well. At first I thought this is the same as #1879975, but it turns out this has a separate cause.

I can reproduce this with the following steps:

1. Start compiz with the dbus and the window decorations plugins enabled (and possibly others; I can send an exact list).
2. Start CCSM
3. Disable the window decorations plugin.

Compiz crashes with the following message:

dbus[19058]: arguments to dbus_message_iter_append_basic() were incorrect, assertion "*bool_p == 0 || *bool_p == 1" failed in file ../../../dbus/dbus-message.c line 2777.
This is normally a bug in some application using the D-Bus library.

  D-Bus not built with -rdynamic so unable to print a backtrace

I'm attaching a stacktrace.

I have a patch for this here:
https://code.launchpad.net/~kondor-dani/compiz/+git/compiz/+ref/dbus-bool-fix

Note that this relies on also fixing bug #1879975 with this patch:
https://code.launchpad.net/~kondor-dani/compiz/+git/compiz/+ref/dbus-fix