Xwayland crashed with SIGABRT in OsAbort() from AbortServer() from FatalError() from xwl_log_handler(msg="Error sending request: Broken pipe\n...")

[fcole90]

https://errors.ubuntu.com/problem/c0246c524b893c42be5f92e0081d8e2f7ddfeaef

---

This happened after restarting gdm multiple times to try to obtain the screen in the correct position. The screen was turned by 180 degrees because of bug #1731030.

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: xwayland 2:1.19.5-0ubuntu2
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu4
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: None
CrashCounter: 1
CurrentDesktop: GNOME-Greeter:GNOME
Date: Thu Nov 9 14:45:28 2017
DistUpgraded: Fresh install
DistroCodename: bionic
DistroVariant: ubuntu
ExecutablePath: /usr/bin/Xwayland
GraphicsCard:
 Intel Corporation 4th Gen Core Processor Integrated Graphics Controller [8086:0416] (rev 06) (prog-if 00 [VGA controller])
   Subsystem: ASUSTeK Computer Inc. 4th Gen Core Processor Integrated Graphics Controller [1043:178d]
   Subsystem: ASUSTeK Computer Inc. GM107M [GeForce GTX 850M] [1043:178d]
InstallationDate: Installed on 2017-08-21 (79 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Alpha amd64 (20170820)
Lsusb:
 Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
 Bus 001 Device 003: ID 0bda:57b4 Realtek Semiconductor Corp.
 Bus 001 Device 004: ID 13d3:3408 IMC Networks
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: ASUSTeK COMPUTER INC. X550JK
ProcCmdline: /usr/bin/Xwayland :1024 -rootless -terminate -core -listen 4 -listen 5 -displayfd 6
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.13.0-16-generic.efi.signed root=UUID=3eab3ace-7b67-4e6a-aea7-d31b73cc4819 ro quiet splash vt.handoff=7
Renderer: Software
Signal: 6
SourcePackage: xorg-server
StacktraceTop:
 OsAbort ()
 ?? ()
 FatalError ()
 ?? ()
 ?? () from /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
Title: Xwayland crashed with SIGABRT in OsAbort()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 10/08/2014
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X550JK.303
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X550JK
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX550JK.303:bd10/08/2014:svnASUSTeKCOMPUTERINC.:pnX550JK:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX550JK:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: X
dmi.product.name: X550JK
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.85-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.4-0ubuntu2
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.4-0ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Mon Aug 21 17:27:07 2017
xserver.configfile: default
xserver.errors:
 open /dev/dri/card0: No such file or directory
 open /dev/dri/card0: No such file or directory
 Screen 0 deleted because of no matching config section.
 AIGLX: reverting to software rendering
xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.19.3-1ubuntu3

[Apport retracing service (apport)]

StacktraceTop:
 OsAbort () at ../../../../os/utils.c:1361
 AbortServer () at ../../../../os/log.c:877
 FatalError (f=f@entry=0x56304e194fa6 "%s") at ../../../../os/log.c:1015
 xwl_log_handler (format=<optimized out>, args=<optimized out>) at ../../../../../hw/xwayland/xwayland.c:885
 wl_abort (fmt=<optimized out>) at ../src/wayland-util.c:416

[Daniel van Vugt (vanvugt)]

It looks like this is probably a result of gnome-shell crashing. That would bring down mutter which is internal to gnome-shell breaking the connection to Xwayland, making it crash.

Really we need to modify Xwayland to not SIGABRT on such errors, because they are just errors and not bugs in Xwayland itself.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel van Vugt (vanvugt)]

Tracking in:
https://errors.ubuntu.com/problem/c0246c524b893c42be5f92e0081d8e2f7ddfeaef