Bug#902437: xwayland: Firefox crashes Wayland on some web pages
On Tue, Jun 26, 2018 at 08:50:10PM +0300, Lars Wirzenius wrote:
>Package: xwayland
>Version: 2:1.20.0-2
>Severity: important
>
>Dear Maintainer,
>
>My apologies for ruining your day with what looks like a tricky driver
>bug. I hate debugging such things, myself.
>
>I'm marking this "important", because the issue makes me not dare to
>browse the web: I've had to reboot my system several times a day
>lately. If you think it should be a lower severity, please downgrade.
>
>Also, I made a wild guess at which package to report this issue
>against, and I am so utterly, comically ignorant of everything in a
>modern Debian desktop system that I may have guessed wrongly; please
>reassign if so.
>
>I run Debian sid on two different laptops: a Lenovo Thinkpad X220, and
>a Lenovo Yoga 900. Both use an Intel graphics card or chip. For the
>past week or two, the X220 has been crashing from time to time. I
>thought it might be bad memory in the laptop, so I switched to the
>Yoga. Then the Yoga started crashing.
>
>After much headbanging and wailing, I've manged to find way to
>reproduce the crash. I use Firefox as my web browser, and certain web
>pages trigger the crash reproducibly. One such web page is here:
>
>http://johannesbrodwall.com/2018/06/24/forget-about-clean-code-lets-embrace-compassionate-code/
>
>What happens is that Firefox does not render that page, only updates
>the page title in the window title, and then becomes unresponsive.
>Menus don't react in anyway. i can't close the tab or window with
>Ctrl-W, or by clicking on the window close button. After a few more
>seconds, the whole desktop stops working, meaning that pressing the
>capslock key no longer toggles the LED. The mouse cursor may or may
>not work. If it does work, moving it to the top left corner of the
>GNOME desktop makes the mouse not work anymore. Also, the desktop does
>not do the "whoosh" feature of GNOME where it shows all windows on the
>current virtual desktop, and the "dock" on the left side of the
>screen.
>
>The machine seems to work otherwise: I can log into it via ssh, and
>run commands on the command line. I can restart gdm3 from the ssh
>session, but if I log back in, it doesn't work: I get a dark grey
>screen, no windows, and nothing else for about half a minute, and then
>it's back to the gdm3 login screen. Logging in as a different user
>seems to work.
>
>There's nothing new in dmesg output, when the crash happens. I've run
>the in-kernel memtest on the Yoga, and it resports no problems. (I've
>not bothered to run it on the X220 yet. I can, if it'd be helpful to
>you.)
>
>I reconfigured gdm3 on the Yoga to start Xorg instead of Wayland, and
>now the web page above works fine in Firefox. No crash.. The webpage
>renders fine under Wayland using Chromium.
>
>I am OK with this workaround, but I assume the bug should be fixed if
>Wayland is to be the default in Debian. The problem is reproducible
>for me. If others can reproduce it, it should be doable on any X220,
>which is, or used to be, a common laptop. I will be keeping mine
>in storage for a while, so that if there's a need, I can try new
>package versions to see if they fix the problem.
>
>Happy hunting.
>
>
>
>-- System Information:
>Debian Release: buster/sid
> APT prefers unstable
> APT policy: (500, 'unstable'), (500, 'stable')
>Architecture: amd64 (x86_64)
>
>Kernel: Linux 4.16.0-2-amd64 (SMP w/4 CPU cores)
>Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8)
>Shell: /bin/sh linked to /bin/dash
>Init: systemd (via /run/systemd/system)
>
>Versions of packages xwayland depends on:
>ii libaudit1 1:2.8.3-1
>ii libbsd0 0.9.1-1
>ii libc6 2.27-3
>ii libdrm2 2.4.92-1
>ii libegl1 1.0.0+git20180308-3
>ii libepoxy0 1.4.3-1
>ii libgbm1 18.1.2-1
>ii libgcrypt20 1.8.3-1
>ii libgl1 1.0.0+git20180308-3
>ii libpixman-1-0 0.34.0-2
>ii libselinux1 2.8-1
>ii libsystemd0 239-1
>ii libwayland-client0 1.15.0-2
>ii libxau6 1:1.0.8-1+b2
>ii libxdmcp6 1:1.1.2-3
>ii libxfont2 1:2.0.3-1
>ii libxshmfence1 1.3-1
>ii xserver-common 2:1.20.0-2
Confirmed here on a fresh install of sid on another X220...
--
Steve
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