Ubuntu
gnome-shell package

Crashes on DP hotplug (wl_registry@2: error 0: invalid global wl_output (29))

Bug #1747910 reported by Marius Gedminas on 2018-02-07

This bug report is a duplicate of: Bug #1745799: Xwayland crashed with SIGABRT in OsAbort() from AbortServer() from FatalError() from xwl_log_handler() from wl_log() ["wl_registry@2: error 0: invalid global wl_output (20)\n"]. Edit Remove

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	gnome-shell (Ubuntu)	New	Undecided	Unassigned

Bug Description

I switched to a new external monitor at work today. I cannot reproduce the exact sequence of events, but it was basically: plug in external monitor (via DisplayPort), suspend laptop, unplug that monitor and plug in another one, resume laptop. At that point I was staring at the GDM login screen because gnome-shell had crashed on me.

(It's hard to understand what happened exactly, from the journal, but it may've been Xwayland that crashed -- I've an Xwayland crash file in /var/crash with a matching timestamp -- but the entire GNOME session died soon afterwards.)

Highlights from journalctl:

    Vas 07 15:04:27 platonas gtimelog[27075]: Error 71 (Protokolo klaida) dispatching to Wayland display.
    Vas 07 15:04:27 platonas gsd-color[3440]: no xrandr-Goldstar Company Ltd-LG ULTRAWIDE-316961 device found: Failed to find output xrandr-Goldstar Company Ltd-LG ULTRAWIDE-316961
    Vas 07 15:04:27 platonas evolution-alarm[4513]: Error 71 (Protokolo klaida) dispatching to Wayland display.
    Vas 07 15:04:27 platonas update-notifier[5165]: Error 71 (Protokolo klaida) dispatching to Wayland display.
    Vas 07 15:04:27 platonas xdg-desktop-por[5317]: Error 71 (Protokolo klaida) dispatching to Wayland display.
    Vas 07 15:04:27 platonas org.gnome.Shell.desktop[4166]: (EE)
    Vas 07 15:04:27 platonas org.gnome.Shell.desktop[4166]: Fatal server error:
    Vas 07 15:04:27 platonas org.gnome.Shell.desktop[4166]: (EE) wl_registry@2: error 0: invalid global wl_output (29)
    Vas 07 15:04:27 platonas org.gnome.Shell.desktop[4166]: (EE)
    Vas 07 15:04:27 platonas systemd[4065]: xdg-desktop-portal-gtk.service: Main process exited, code=exited, status=1/FAILURE
    Vas 07 15:04:27 platonas systemd[4065]: xdg-desktop-portal-gtk.service: Unit entered failed state.
    Vas 07 15:04:27 platonas systemd[4065]: xdg-desktop-portal-gtk.service: Failed with result 'exit-code'.
    ...
    Vas 07 15:04:34 platonas org.gnome.Shell.desktop[4166]: xcb_connection_has_error() grąžino reikšmę "true"
    ...
    Vas 07 15:04:34 platonas gnome-shell[4166]: Connection to xwayland lost
    Vas 07 15:04:34 platonas org.gnome.Shell.desktop[4166]: == Stack trace for context 0x564a010d2000 ==
    ...
    Vas 07 15:04:35 platonas gnome-session[4081]: gnome-session-binary[4081]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
    Vas 07 15:04:35 platonas gnome-session-binary[4081]: WARNING: Application 'org.gnome.Shell.desktop' killed by signal 5
    Vas 07 15:04:35 platonas gnome-session-binary[4081]: Unrecoverable failure in required component org.gnome.Shell.desktop

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: gnome-shell 3.26.2-0ubuntu0.1
ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
Uname: Linux 4.13.0-32-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: GNOME
Date: Wed Feb 7 15:20:24 2018
DisplayManager: gdm3
InstallationDate: Installed on 2016-09-10 (515 days ago)
InstallationMedia: Ubuntu-GNOME 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160720)
SourcePackage: gnome-shell
UpgradeStatus: Upgraded to artful on 2017-10-19 (110 days ago)

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Marius Gedminas (mgedmin) wrote on 2018-02-07:

Dependencies.txt Edit (22.2 KiB, text/plain; charset="utf-8")
GsettingsChanges.txt Edit (1.1 KiB, text/plain; charset="utf-8")
JournalErrors.txt Edit (244.5 KiB, text/plain; charset="utf-8")
ProcCpuinfoMinimal.txt Edit (959 bytes, text/plain; charset="utf-8")
ProcEnviron.txt Edit (118 bytes, text/plain; charset="utf-8")

description:

updated

Revision history for this message

Marius Gedminas (mgedmin) wrote on 2018-02-07:

This is probably a duplicate of 1728588 (which itself is marked as a duplicate of 1731911).

apport-retrace gives me this Xwayland stack trace:

(gdb) bt
#0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1 0x00007fce6a322f5d in __GI_abort () at abort.c:90
#2 0x0000558934f5713a in OsAbort () at ../../../../os/utils.c:1361
#3 0x0000558934f5cc53 in AbortServer () at ../../../../os/log.c:877
#4 0x0000558934f5da75 in FatalError (f=f@entry=0x558934f66fa6 "%s") at ../../../../os/log.c:1015
#5 0x0000558934de2e6c in xwl_log_handler (format=<optimized out>, args=<optimized out>) at ../../../../../hw/xwayland/xwayland.c:885
#6 0x00007fce6c7728ca in wl_log (fmt=<optimized out>) at ../src/wayland-util.c:406
#7 0x00007fce6c76e2d8 in display_handle_error (data=<optimized out>, display=0x558935d07e30, object=0x558935d0c300, code=0, message=<optimized out>)
    at ../src/wayland-client.c:810
#8 0x00007fce69c60e18 in ffi_call_unix64 () at ../src/x86/unix64.S:76
#9 0x00007fce69c6087a in ffi_call (cif=cif@entry=0x7ffd318ba470, fn=<optimized out>, rvalue=<optimized out>, rvalue@entry=0x0,
    avalue=avalue@entry=0x7ffd318ba540) at ../src/x86/ffi64.c:525
#10 0x00007fce6c771a1b in wl_closure_invoke (closure=<optimized out>, flags=<optimized out>, target=<optimized out>, opcode=0, data=<optimized out>)
    at ../src/connection.c:935
#11 0x00007fce6c76e5b8 in dispatch_event (display=display@entry=0x558935d07e30, queue=<optimized out>) at ../src/wayland-client.c:1310
#12 0x00007fce6c76f847 in dispatch_queue (queue=0x558935d07ef8, display=0x558935d07e30) at ../src/wayland-client.c:1449
#13 wl_display_dispatch_queue_pending (display=0x558935d07e30, queue=0x558935d07ef8) at ../src/wayland-client.c:1698
#14 0x00007fce6c76f8cc in wl_display_dispatch_pending (display=<optimized out>) at ../src/wayland-client.c:1761
#15 0x0000558934de341b in xwl_read_events (xwl_screen=0x558935cffa40) at ../../../../../hw/xwayland/xwayland.c:598
#16 0x0000558934f54cb1 in ospoll_wait (ospoll=0x558935cf4a20, timeout=<optimized out>) at ../../../../os/ospoll.c:412
#17 0x0000558934f4dcbb in WaitForSomething (are_ready=<optimized out>) at ../../../../os/WaitFor.c:226
#18 0x0000558934f199f3 in Dispatch () at ../../../../dix/dispatch.c:422
#19 0x0000558934f1dc90 in dix_main (argc=11, argv=0x7ffd318bb4f8, envp=<optimized out>) at ../../../../dix/main.c:287
#20 0x00007fce6a30b1c1 in __libc_start_main (main=0x558934de2a60 <main>, argc=11, argv=0x7ffd318bb4f8, init=<optimized out>, fini=<optimized out>,
    rtld_fini=<optimized out>, stack_end=0x7ffd318bb4e8) at ../csu/libc-start.c:308
#21 0x0000558934de2a9a in _start ()

This is probably a duplicate of 1728588 (which itself is marked as a duplicate of 1731911).

apport-retrace gives me this Xwayland stack trace:

(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007fce6a322f5d in __GI_abort () at abort.c:90
#2  0x0000558934f5713a in OsAbort () at ../../../../os/utils.c:1361
#3  0x0000558934f5cc53 in AbortServer () at ../../../../os/log.c:877
#4  0x0000558934f5da75 in FatalError (f=f@entry=0x558934f66fa6 "%s") at ../../../../os/log.c:1015
#5  0x0000558934de2e6c in xwl_log_handler (format=<optimized out>, args=<optimized out>) at ../../../../../hw/xwayland/xwayland.c:885
#6  0x00007fce6c7728ca in wl_log (fmt=<optimized out>) at ../src/wayland-util.c:406
#7  0x00007fce6c76e2d8 in display_handle_error (data=<optimized out>, display=0x558935d07e30, object=0x558935d0c300, code=0, message=<optimized out>)
    at ../src/wayland-client.c:810
#8  0x00007fce69c60e18 in ffi_call_unix64 () at ../src/x86/unix64.S:76
#9  0x00007fce69c6087a in ffi_call (cif=cif@entry=0x7ffd318ba470, fn=<optimized out>, rvalue=<optimized out>, rvalue@entry=0x0, 
    avalue=avalue@entry=0x7ffd318ba540) at ../src/x86/ffi64.c:525
#10 0x00007fce6c771a1b in wl_closure_invoke (closure=<optimized out>, flags=<optimized out>, target=<optimized out>, opcode=0, data=<optimized out>)
    at ../src/connection.c:935
#11 0x00007fce6c76e5b8 in dispatch_event (display=display@entry=0x558935d07e30, queue=<optimized out>) at ../src/wayland-client.c:1310
#12 0x00007fce6c76f847 in dispatch_queue (queue=0x558935d07ef8, display=0x558935d07e30) at ../src/wayland-client.c:1449
#13 wl_display_dispatch_queue_pending (display=0x558935d07e30, queue=0x558935d07ef8) at ../src/wayland-client.c:1698
#14 0x00007fce6c76f8cc in wl_display_dispatch_pending (display=<optimized out>) at ../src/wayland-client.c:1761
#15 0x0000558934de341b in xwl_read_events (xwl_screen=0x558935cffa40) at ../../../../../hw/xwayland/xwayland.c:598
#16 0x0000558934f54cb1 in ospoll_wait (ospoll=0x558935cf4a20, timeout=<optimized out>) at ../../../../os/ospoll.c:412
#17 0x0000558934f4dcbb in WaitForSomething (are_ready=<optimized out>) at ../../../../os/WaitFor.c:226
#18 0x0000558934f199f3 in Dispatch () at ../../../../dix/dispatch.c:422
#19 0x0000558934f1dc90 in dix_main (argc=11, argv=0x7ffd318bb4f8, envp=<optimized out>) at ../../../../dix/main.c:287
#20 0x00007fce6a30b1c1 in __libc_start_main (main=0x558934de2a60 <main>, argc=11, argv=0x7ffd318bb4f8, init=<optimized out>, fini=<optimized out>, 
    rtld_fini=<optimized out>, stack_end=0x7ffd318bb4e8) at ../csu/libc-start.c:308
#21 0x0000558934de2a9a in _start ()

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Daniel van Vugt (vanvugt) wrote on 2018-02-08:

Actually it's a closely-related bug 1746656

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Crashes on DP hotplug (wl_registry@2: error 0: invalid global wl_output (29))

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gnome-shell package