[Bug 104222] New: GNOME/Wayland desktop freezes when resizing Firefox window - bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ

From: bugzilla-daemon-CC+yJ3UmIYqDUpFQwHEjaQ@public.gmane.org
To: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [Bug 104222] New: GNOME/Wayland desktop freezes when resizing Firefox window
Date: Tue, 12 Dec 2017 11:38:22 +0000	[thread overview]
Message-ID: <bug-104222-8800@http.bugs.freedesktop.org/> (raw)

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https://bugs.freedesktop.org/show_bug.cgi?id=104222

            Bug ID: 104222
           Summary: GNOME/Wayland desktop freezes when resizing Firefox
                    window
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
          Reporter: sbergman-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org
        QA Contact: xorg-team-go0+a7rfsptAfugRpC6u6w@public.gmane.org

On Fedora 27 GNOME/Wayland desktop, I can reliably reproduce the desktop
freezing when grabbing the border of a Firefox window with the mouse and
dragging to resize.  (Where Firefox brings Xwayland into the mix, IIUC.  The
only way I found to make the machine responsive again is to ssh into it and
kill -9 the Xwayland processes, which gets me back to the GNOME login screen.)

journalctl says:

> Dec 12 11:24:42 alpha kernel: nouveau 0000:02:00.0: gr: TRAP ch 16 [003f49a000 Xwayland[27222]]
> Dec 12 11:24:42 alpha kernel: nouveau 0000:02:00.0: gr: GPC0/TPC0/TEX: 80000049
> Dec 12 11:24:42 alpha kernel: nouveau 0000:02:00.0: gr: GPC0/TPC1/TEX: 80000049
> Dec 12 11:24:42 alpha kernel: nouveau 0000:02:00.0: fifo: read fault at 0001c7e000 engine 00 [PGRAPH] client 04 [GPC0/] reason 02 [PAGE_NOT_PRESENT] on channel 16 [003f49a000 Xwayland[27222]]
> Dec 12 11:24:42 alpha kernel: nouveau 0000:02:00.0: fifo: gr engine fault on channel 16, recovering...
> Dec 12 11:24:42 alpha kernel: nouveau 0000:02:00.0: Xwayland[27222]: channel 16 killed!

The GPU is "VGA compatible controller: NVIDIA Corporation GF108GL [Quadro 600]
(rev a1)" according to lspci.

Reproducible with kernel 4.14.3-300.fc27.x86_64, but not reproducible with
4.13.13-300.fc27.x86_64.

Also not reproducible with neither (from a VT) running `weston --xwayland` nor
`weston --use-pixman --xwayland`.

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