[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Patrick Silva]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #16 from Patrick Silva  ---
Operating System: Arch Linux 
KDE Plasma Version: 5.15.4
KDE Frameworks Version: 5.57.0
Qt Version: 5.13.0 beta2

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Patrick Silva]

https://bugs.kde.org/show_bug.cgi?id=403970

Patrick Silva  changed:

   What|Removed |Added

 CC||bugsefor...@gmx.com

--- Comment #15 from Patrick Silva  ---
The problem persists at least with konsole.
I get the following message:

qt.qpa.wayland: setGrabPopup called with a parent,
QtWaylandClient::QWaylandXdgSurface(0x5593efd0) which does not match the
current topmost grabbing popup,
QtWaylandClient::QWaylandXdgSurface(0x55993ec0) According to the xdg-shell
protocol, this is not allowed. The wayland QPA plugin is currently handling it
by setting the parent to the topmost grabbing popup. Note, however, that this
may cause positioning errors and popups closing unxpectedly because xdg-shell
mandate that child popups close before parents

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #14 from mthw0  ---
(In reply to Johan Klokkhammer Helsing from comment #13)
> > If you are asking whether I have tried building qt with it, then no, I have 
> > not. TBH I don't even know how.
> 
> Yeah. Sorry, I just thought "resolved upstream" meant that you knew it was
> now fixed at the Qt level.
> 
> I see that it's just means that it's resolved as far as you're concerned and
> something that needs to be fixed upstream.

I managed to build qt5-wayland package with your patch and it seems to work, it
does fix this issue.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Johan Klokkhammer Helsing]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #13 from Johan Klokkhammer Helsing  ---
> If you are asking whether I have tried building qt with it, then no, I have 
> not. TBH I don't even know how.

Yeah. Sorry, I just thought "resolved upstream" meant that you knew it was now
fixed at the Qt level.

I see that it's just means that it's resolved as far as you're concerned and
something that needs to be fixed upstream.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #12 from mthw0  ---
(In reply to Johan Klokkhammer Helsing from comment #11)
> @mthw0: The dropping of frames on gnome-shell is likely this bug:
> https://gitlab.gnome.org/GNOME/mutter/issues/199
> 
> Also, do you know which patch fixed it for you? Perhaps this one?
> https://codereview.qt-project.org/#/c/252117/
> 
> Popups on Qt Wayland are a mess. There are restrictions in the xdg-shell
> protocol that match really poorly to the APIs we provide in Qt. In this
> case, it is probably the restriction that a new grabbing popup has to be the
> child of the current grabbing popup, combined with closing and opening
> sometimes happening in the opposite order.

I am not sure whether I understand your question correctly. If you are asking,
whether I have seen this patch, then yes, I've noticed it and it looks like it
might be exactly what we need.
If you are asking whether I have tried building qt with it, then no, I have
not. TBH I don't even know how.

Regarding Gnome, generally I would say it's a mess, and I am not convinced that
it's caused by a single bug.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Johan Klokkhammer Helsing]

https://bugs.kde.org/show_bug.cgi?id=403970

Johan Klokkhammer Helsing  changed:

   What|Removed |Added

 CC||johan.hels...@qt.io

--- Comment #11 from Johan Klokkhammer Helsing  ---
@mthw0: The dropping of frames on gnome-shell is likely this bug:
https://gitlab.gnome.org/GNOME/mutter/issues/199

Also, do you know which patch fixed it for you? Perhaps this one?
https://codereview.qt-project.org/#/c/252117/

Popups on Qt Wayland are a mess. There are restrictions in the xdg-shell
protocol that match really poorly to the APIs we provide in Qt. In this case,
it is probably the restriction that a new grabbing popup has to be the child of
the current grabbing popup, combined with closing and opening sometimes
happening in the opposite order.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #10 from mthw0  ---
(In reply to Andrius Štikonas from comment #9)
> Nouveau? https://bugs.archlinux.org/task/61638

No, Intel HD 4400 with buit-in driver. Kernel 5.0.0-rc5

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #9 from Andrius Štikonas  ---
Nouveau? https://bugs.archlinux.org/task/61638

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=403970

Andrius Štikonas  changed:

   What|Removed |Added

 Status|REPORTED|RESOLVED
 Resolution|--- |UPSTREAM

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #8 from Andrius Štikonas  ---
(In reply to mthw0 from comment #7)
> After a further investigation it looks like I have this with every app that
> has a menu. So it is probably kwin or Qt bug and this can be closed then.

[20:09]  stikonas: there are constant fixes to QtWayland wrt popup
handling
[20:10]  there's another one on review ATM
[20:11]  I see. Strangely everything works fine for me in this case
[20:12]  I would guess you have a newer Qt than the reporter
[20:12]  actuallty older. I have QT 5.12.0, reporter has Qt 5.12.1

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #7 from mthw0  ---
After a further investigation it looks like I have this with every app that has
a menu. So it is probably kwin or Qt bug and this can be closed then.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #6 from mthw0  ---
On gnome wayland, It looks ugly and drops about half the frames, but other than
that, it doesn't crash.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #5 from mthw0  ---
Here is a video of how it looks like: https://gfycat.com/RealisticTinyAiredale

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #4 from Andrius Štikonas  ---
(In reply to mthw0 from comment #3)
> It looks like on Plasma Xorg this problem doesn't occur and partitionmanager
> runs just fine.

What about GNOME Wayland?

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #3 from mthw0  ---
It looks like on Plasma Xorg this problem doesn't occur and partitionmanager
runs just fine.

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[Andrius Štikonas]

https://bugs.kde.org/show_bug.cgi?id=403970

--- Comment #2 from Andrius Štikonas  ---
Hmm, for now I still can't reproduce with

Qt 5.12.0
KDE Frameworks 5.54
KDE Plasma Version (Wayland): 5.14.90

So as you can see, a fairly similar versions.

Can you try without Wayland? It could be that you are hitting something else,
but I'm not sure.

(I've been using Wayland for over a year, haven't seen any issues)

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

mthw0  changed:

   What|Removed |Added

   See Also||https://bugs.kde.org/show_b
   ||ug.cgi?id=403966

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[partitionmanager] [Bug 403970] Partition manager crashes just by browsing menus

[mthw0]

https://bugs.kde.org/show_bug.cgi?id=403970

mthw0  changed:

   What|Removed |Added

 CC||jari...@hotmail.com

--- Comment #1 from mthw0  ---
In addition to this I also wasn't able to start partitionmanager with gdb at
all. Log:

LANG=C gdb partitionmanager
GNU gdb (GDB) 8.2.1
Copyright (C) 2018 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later 
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "x86_64-pc-linux-gnu".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
.
Find the GDB manual and other documentation resources online at:
.

For help, type "help".
Type "apropos word" to search for commands related to "word"...
Reading symbols from partitionmanager...done.

(gdb) run
Starting program: /usr/bin/partitionmanager 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffeefe3700 (LWP 24755)]
Could not load plugin for core backend  "" :  "The shared library was not
found."
Loaded backend plugin:  "pmsfdiskbackendplugin"
Using Wayland-EGL
[New Thread 0x7fffe7fff700 (LWP 24756)]
Using the 'xdg-shell' shell integration
[New Thread 0x7fffe77fe700 (LWP 24757)]

Thread 4 "DBusThread" received signal SIG33, Real-time event 33.
[Switching to Thread 0x7fffe77fe700 (LWP 24757)]
0x761e2a3d in _int_malloc () from /usr/lib/libc.so.6

(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/bin/partitionmanager 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffeefe3700 (LWP 24767)]
Could not load plugin for core backend  "" :  "The shared library was not
found."
Loaded backend plugin:  "pmsfdiskbackendplugin"
Using Wayland-EGL
[New Thread 0x7fffe7fff700 (LWP 24768)]
Using the 'xdg-shell' shell integration
[New Thread 0x7fffe77fe700 (LWP 24769)]

Thread 4 "partitionmanage" received signal SIG33, Real-time event 33.
[Switching to Thread 0x7fffe77fe700 (LWP 24769)]
0x7478af40 in g_atomic_ref_count_compare () from
/usr/lib/libglib-2.0.so.0

(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/bin/partitionmanager 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffeefe3700 (LWP 24772)]
Could not load plugin for core backend  "" :  "The shared library was not
found."
Loaded backend plugin:  "pmsfdiskbackendplugin"
Using Wayland-EGL
[New Thread 0x7fffe7fff700 (LWP 24773)]
Using the 'xdg-shell' shell integration
[New Thread 0x7fffe77fe700 (LWP 24774)]

Thread 4 "DBusThread" received signal SIG33, Real-time event 33.
[Switching to Thread 0x7fffe77fe700 (LWP 24774)]
0x761e4ab0 in malloc () from /usr/lib/libc.so.6

(gdb) run
The program being debugged has been started already.
Start it from the beginning? (y or n) y
Starting program: /usr/bin/partitionmanager 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffeefe3700 (LWP 24844)]
Could not load plugin for core backend  "" :  "The shared library was not
found."
Loaded backend plugin:  "pmsfdiskbackendplugin"
Using Wayland-EGL
[New Thread 0x7fffe7fff700 (LWP 24845)]
Using the 'xdg-shell' shell integration
[New Thread 0x7fffe77fe700 (LWP 24846)]

Thread 2 "QDBusConnection" received signal SIG33, Real-time event 33.
[Switching to Thread 0x7fffeefe3700 (LWP 24844)]
0x7624fc21 in poll () from /usr/lib/libc.so.6

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