1620180 - [Wayland] Dragging tabs often causes Gnome Shell to crash

Status: VERIFIED WORKSFORME

(Core :: Widget: Gtk, defect)

Description

[Kestrel]

Attachment: wayland-dnd-log.txt

STR:

1. Start with env GDK_BACKEND=wayland on Ubuntu 19.10 (GNOME Shell 3.34.1).
2. Restore a previous session.
3. When the active tab is still loading, quickly drag a different tab horizontally (don't need to leave tab strip).

Gnome Shell will immediately crash when the tab starts being dragged. It is fairly easy to reproduce but if it doesn't happen, quit browser and try again.

It also happens when tab dragging is initiated at other times but this is the most reliable way I have found to reproduce it.

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=fe29ec1ab8c391a81064d1b8d7d3c4bec41e2fb9&tochange=1b717628c7e944103524b4cd4d63ce3c1bc5694e

Regressed by Bug 1604048.

Comment 1

[Robert Mader [:rmader]]

This is a known bug and apparently fixed for month. Please update GS to something more recent (we are at 3.34.4 now) or, more importantly, engage with you distribution to ship point releases faster.

Comment 2

[Robert Mader [:rmader]]

Well, let's say weeks :)

Comment 3

[Robert Mader [:rmader]]

Pascal: this is obviously not a FF but a GS bug (it should never crash, no matter what Firefox does). And it's fixed already (can't find the other bug right now, but the Ubuntu 19.10 Mutter version is known to have this bug - and they didn't update since december). So we can close this and hope Ubuntu gets faster in shipping updates...

Comment 5

[Kestrel]

Ubuntu 19.10 just updated GS to 3.34.3 and the issue is no longer reproducible.