Bug 109220

Summary:	xserver (xwayland) Commit 08843efc5940563a2275c654804c999cfc772987 causes kwin_wayland to deadlock
Product:	Wayland	Reporter:	n3rdopolis <bluescreen_avenger>
Component:	XWayland	Assignee:	Wayland bug list <wayland-bugs>
Status:	RESOLVED FIXED	QA Contact:	Xorg Project Team <xorg-team>
Severity:	normal
Priority:	medium
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:

Description n3rdopolis 2019-01-04 01:31:18 UTC

Hi

I am not sure of what information to provide since I am not sure how the internals of kwin_wayland works. 

But trying to run kwin_wayland with master xserver, and it hangs, running it with GDB, and IIRC it hangs trying to connect to the display. (and it deadlocks pretty hard, where it ignores CTRL+C)

I narrowed it down to commit 08843efc5940563a2275c654804c999cfc772987
the commit before, and kwin_wayland runs fine

Thanks

Comment 1 Michel Dänzer 2019-01-04 08:40:21 UTC

https://gitlab.freedesktop.org/xorg/xserver/merge_requests/99 claims to fix this.

P.S. Xwayland bugs should be filed at https://gitlab.freedesktop.org/xorg/xserver/issues/new now.

Comment 2 n3rdopolis 2019-01-05 02:22:08 UTC

Thanks! That works! I'll make a note of that, sorry for reporting it in the wrong place

Comment 3 Michel Dänzer 2019-01-08 17:55:03 UTC

Thanks for the report, fixed in Git master:

commit bf5613f888e837641b9e16aacb36ffb43a9cccda
Author: Roman Gilg <subdiff@gmail.com>
Date:   Wed Jan 2 21:55:23 2019 +0100

    xwayland: Fix wm_fd readin with no listen_fds

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