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Published
20 hours ago •
QubesOS
QubesOS
xfce-panel crashes
Qubes OS release
R4.1
Brief summary
After some use, the xfce4-panel crashed. This is the second time in two weeks that this happens. Basically the top bar disappears.
Steps to reproduce
I don't know how to reproduce it.
Expected behavior
The panel would not randomly crash
Actual behavior
journalctl
Aug 29 15:08:10 dom0 pkexec[101107]: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Aug 29 15:08:10 dom0 audit[101107]: USER_START pid=101107 uid=1000 auid=1000 ses=1 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/pk>
Aug 29 15:08:10 dom0 kernel: audit: type=1105 audit(1661782090.534:930): pid=101107 uid=1000 auid=1000 ses=1 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix ac>
Aug 29 15:08:10 dom0 pkexec[101107]: user: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/sbin/xfpm-power-backlight-helper --set-brightness 212]
Aug 29 15:08:10 dom0 pkexec[101112]: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Aug 29 15:08:10 dom0 kernel: audit: type=1105 audit(1661782090.693:931): pid=101112 uid=1000 auid=1000 ses=1 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix ac>
Aug 29 15:08:10 dom0 audit[101112]: USER_START pid=101112 uid=1000 auid=1000 ses=1 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/pk>
Aug 29 15:08:10 dom0 pkexec[101112]: user: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/sbin/xfpm-power-backlight-helper --set-brightness 106]
Aug 29 15:08:10 dom0 pkexec[101117]: pam_unix(polkit-1:session): session opened for user root by (uid=1000)
Aug 29 15:08:10 dom0 kernel: audit: type=1105 audit(1661782090.860:932): pid=101117 uid=1000 auid=1000 ses=1 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix ac>
Aug 29 15:08:10 dom0 audit[101117]: USER_START pid=101117 uid=1000 auid=1000 ses=1 msg='op=PAM:session_open grantors=pam_keyinit,pam_limits,pam_systemd,pam_unix acct="root" exe="/usr/bin/pk>
Aug 29 15:08:10 dom0 pkexec[101117]: user: Executing command [USER=root] [TTY=unknown] [CWD=/] [COMMAND=/usr/sbin/xfpm-power-backlight-helper --set-brightness 0]
Aug 29 15:11:02 dom0 audit[7301]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=1 pid=7301 comm="xfce4-panel" exe="/usr/bin/xfce4-panel" sig=6 res=1
Aug 29 15:11:02 dom0 kernel: audit: type=1701 audit(1661782262.469:933): auid=1000 uid=1000 gid=1001 ses=1 pid=7301 comm="xfce4-panel" exe="/usr/bin/xfce4-panel" sig=6 res=1
Aug 29 15:11:02 dom0 systemd[1]: Created slice system-systemd\x2dcoredump.slice.
Aug 29 15:11:02 dom0 audit: BPF prog-id=44 op=LOAD
Aug 29 15:11:02 dom0 audit: BPF prog-id=45 op=LOAD
Aug 29 15:11:02 dom0 audit: BPF prog-id=46 op=LOAD
Aug 29 15:11:02 dom0 kernel: audit: type=1334 audit(1661782262.513:934): prog-id=44 op=LOAD
Aug 29 15:11:02 dom0 kernel: audit: type=1334 audit(1661782262.513:935): prog-id=45 op=LOAD
Aug 29 15:11:02 dom0 kernel: audit: type=1334 audit(1661782262.513:936): prog-id=46 op=LOAD
Aug 29 15:11:02 dom0 systemd[1]: Started Process Core Dump (PID 101135/UID 0).
Aug 29 15:11:02 dom0 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-101135-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=?>
Aug 29 15:11:02 dom0 kernel: audit: type=1130 audit(1661782262.517:937): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-101135-0 comm="systemd" exe="/usr/lib/system>
Aug 29 15:11:02 dom0 systemd-coredump[101136]: Process 7301 (xfce4-panel) of user 1000 dumped core.
Stack trace of thread 7301:
#0 0x00007120b39cc7d5 raise (libc.so.6 + 0x3c7d5)
#1 0x00007120b39b594d abort (libc.so.6 + 0x2594d)
#2 0x00007120b39b5769 __assert_fail_base.cold (libc.so.6 + 0x25769)
#3 0x00007120b39c4e86 __assert_fail (libc.so.6 + 0x34e86)
#4 0x00007120b4b0f9f3 poll_for_event (libX11.so.6 + 0x469f3)
#5 0x00007120b4b0fa9d poll_for_response (libX11.so.6 + 0x46a9d)
#6 0x00007120b4b0fd9a _XEventsQueued (libX11.so.6 + 0x46d9a)
#7 0x00007120b4b01681 XPending (libX11.so.6 + 0x38681)
#8 0x00007120b421ca83 gdk_event_source_check (libgdk-3.so.0 + 0x72a83)
#9 0x00007120b3cf14b9 g_main_context_check (libglib-2.0.so.0 + 0x524b9)
#10 0x00007120b3cf1a55 g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52a55)
#11 0x00007120b3cf1e33 g_main_loop_run (libglib-2.0.so.0 + 0x52e33)
#12 0x00007120b451199d gtk_main (libgtk-3.so.0 + 0x25c99d)
#13 0x00005a9cf8f209c7 main (xfce4-panel + 0x179c7)
#14 0x00007120b39b7082 __libc_start_main (libc.so.6 + 0x27082)
#15 0x00005a9cf8f20f9e _start (xfce4-panel + 0x17f9e)
Stack trace of thread 7304:
#0 0x00007120b3a8686f __poll (libc.so.6 + 0xf686f)
#1 0x00007120b3cf1aae g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52aae)
#2 0x00007120b3cf1be3 g_main_context_iteration (libglib-2.0.so.0 + 0x52be3)
#3 0x00007120b3cf1c31 glib_worker_main (libglib-2.0.so.0 + 0x52c31)
#4 0x00007120b3d1b7f2 g_thread_proxy (libglib-2.0.so.0 + 0x7c7f2)
#5 0x00007120b3843432 start_thread (libpthread.so.0 + 0x9432)
#6 0x00007120b3a916d3 __clone (libc.so.6 + 0x1016d3)
Stack trace of thread 7306:
#0 0x00007120b3a8686f __poll (libc.so.6 + 0xf686f)
#1 0x00007120b3cf1aae g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52aae)
#2 0x00007120b3cf1e33 g_main_loop_run (libglib-2.0.so.0 + 0x52e33)
#3 0x00007120b3f456aa gdbus_shared_thread_func (libgio-2.0.so.0 + 0x1226aa)
#4 0x00007120b3d1b7f2 g_thread_proxy (libglib-2.0.so.0 + 0x7c7f2)
#5 0x00007120b3843432 start_thread (libpthread.so.0 + 0x9432)
#6 0x00007120b3a916d3 __clone (libc.so.6 + 0x1016d3)
Aug 29 15:11:02 dom0 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-101135-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? >
Aug 29 15:11:02 dom0 kernel: audit: type=1131 audit(1661782262.920:938): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-101135-0 comm="systemd" exe="/usr/lib/system>
Aug 29 15:11:02 dom0 systemd[1]: [email protected]: Succeeded.
`~/.xsession-errors` (error at the bottom seems related)
qube-1: Starting GUI
qube-1: Starting AUDIO
qube-1: Sending monitor layout
2022-08-29 15:07:35,247 icon-receiver: connected: qube-1
Stream uncork
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor resumed.^[[K
Stream started.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo resumed.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor resumed.^[[K
Stream cork
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo suspended.^[[KStream device alsa_output.pci-0000_00_1f.3.analog-stereo suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo suspended.^[[K
Stream device alsa_output.pci-0000_00_1f.3.analog-stereo.monitor suspended.^[[K
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
xfce4-panel: xcb_io.c:260: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
FWIW, I have experienced this once so far on 4.1 when rapidly double-clicking the "expand menu arrow" of a "launcher" icon, but I wasn't able to reproduce it by repeating that action.
Just experienced a panel crash again while clicking the clock to open/close the calendar.
journalctl -r output
Sep 05 06:04:50 dom0 kernel: xen-blkback: backend/vbd/1/51760: using 2 queues, protocol 1 (x86_64-abi)
Sep 05 06:04:50 dom0 kernel: xen-blkback: backend/vbd/1/51744: using 2 queues, protocol 1 (x86_64-abi)
lines 18-68
#4 0x000076d8cda7a9f3 poll_for_event (libX11.so.6 + 0x469f3)
#5 0x000076d8cda7aa9d poll_for_response (libX11.so.6 + 0x46a9d)
#6 0x000076d8cda7ad9a _XEventsQueued (libX11.so.6 + 0x46d9a)
#7 0x000076d8cda6c681 XPending (libX11.so.6 + 0x38681)
#8 0x000076d8cd187b0f gdk_event_source_prepare (libgdk-3.so.0 + 0x72b0f)
#9 0x000076d8ccc5bfc2 g_main_context_prepare (libglib-2.0.so.0 + 0x51fc2)
#10 0x000076d8ccc5c9db g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x529db)
#11 0x000076d8ccc5ce33 g_main_loop_run (libglib-2.0.so.0 + 0x52e33)
#12 0x000076d8cd47c99d gtk_main (libgtk-3.so.0 + 0x25c99d)
#13 0x000063e7fd1d09c7 main (xfce4-panel + 0x179c7)
#14 0x000076d8cc922082 __libc_start_main (libc.so.6 + 0x27082)
#15 0x000063e7fd1d0f9e _start (xfce4-panel + 0x17f9e)
Stack trace of thread 3696:
#0 0x000076d8cc9f186f __poll (libc.so.6 + 0xf686f)
#1 0x000076d8ccc5caae g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52aae)
#2 0x000076d8ccc5cbe3 g_main_context_iteration (libglib-2.0.so.0 + 0x52be3)
#3 0x000076d8ccc5cc31 glib_worker_main (libglib-2.0.so.0 + 0x52c31)
#4 0x000076d8ccc867f2 g_thread_proxy (libglib-2.0.so.0 + 0x7c7f2)
#5 0x000076d8cc7ae432 start_thread (libpthread.so.0 + 0x9432)
#6 0x000076d8cc9fc6d3 __clone (libc.so.6 + 0x1016d3)
Stack trace of thread 3698:
#0 0x000076d8cc9f186f __poll (libc.so.6 + 0xf686f)
#1 0x000076d8ccc5caae g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52aae)
#2 0x000076d8ccc5ce33 g_main_loop_run (libglib-2.0.so.0 + 0x52e33)
#3 0x000076d8cceb06aa gdbus_shared_thread_func (libgio-2.0.so.0 + 0x1226aa)
#4 0x000076d8ccc867f2 g_thread_proxy (libglib-2.0.so.0 + 0x7c7f2)
#5 0x000076d8cc7ae432 start_thread (libpthread.so.0 + 0x9432)
#6 0x000076d8cc9fc6d3 __clone (libc.so.6 + 0x1016d3)
Sep 05 06:25:06 dom0 systemd[1]: Started Process Core Dump (PID 4680/UID 0).
Sep 05 06:25:06 dom0 kernel: audit: type=1130 audit(1662384306.421:247): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-4680-0 comm="systemd" exe="/usr/lib/systemd/>
Sep 05 06:25:06 dom0 kernel: audit: type=1334 audit(1662384306.418:246): prog-id=42 op=LOAD
Sep 05 06:25:06 dom0 kernel: audit: type=1334 audit(1662384306.418:245): prog-id=41 op=LOAD
Sep 05 06:25:06 dom0 kernel: audit: type=1334 audit(1662384306.418:244): prog-id=40 op=LOAD
Sep 05 06:25:06 dom0 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-4680-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? t>
Sep 05 06:25:06 dom0 audit: BPF prog-id=42 op=LOAD
Sep 05 06:25:06 dom0 audit: BPF prog-id=41 op=LOAD
Sep 05 06:25:06 dom0 audit: BPF prog-id=40 op=LOAD
Sep 05 06:25:06 dom0 systemd[1]: Created slice system-systemd\x2dcoredump.slice.
Sep 05 06:25:06 dom0 kernel: audit: type=1701 audit(1662384306.374:243): auid=1000 uid=1000 gid=1001 ses=2 pid=3692 comm="xfce4-panel" exe="/usr/bin/xfce4-panel" sig=6 res=1
Sep 05 06:25:06 dom0 audit[3692]: ANOM_ABEND auid=1000 uid=1000 gid=1001 ses=2 pid=3692 comm="xfce4-panel" exe="/usr/bin/xfce4-panel" sig=6 res=1
~/.xsession-errors
/usr/bin/iceauth: creating new authority file /run/user/1000/ICEauthority
xfce4-session: No SSH authentication agent found
gpg-agent[3668]: WARNING: "--write-env-file" is an obsolete option - it has no effect
gpg-agent: a gpg-agent is already running - not starting a new one
(xfce4-session:3604): xfce4-session-WARNING **: 05:48:40.316: gpg-agent returned no PID in the variables
xfwm4-Message: 05:48:40.544: Prefer XPresent with Mesa Intel(R) HD Graphics 5500 (BDW GT2)
(wrapper-2.0:3709): Gtk-WARNING **: 05:48:41.569: gtk_widget_size_allocate(): attempt to allocate widget with width -1 and height 28
(wrapper-2.0:3709): Gtk-WARNING **: 05:48:41.570: Negative content width -1 (allocation 1, extents 1x1) while allocating gadget (node border, owner GtkFrame)
Waiting for initial location to become available...
(wrapper-2.0:3710): Gtk-WARNING **: 05:48:42.365: Negative content width -3 (allocation 1, extents 2x2) while allocating gadget (node button, owner PulseaudioButton)
(Thunar:3699): thunar-WARNING **: 06:04:43.675: Failed to launch the volume manager (Failed to execute child process “thunar-volman” (No such file or directory)), make sure you have the "thu
nar-volman" package installed.
(Thunar:3699): thunar-WARNING **: 06:04:43.894: Failed to launch the volume manager (Failed to execute child process “thunar-volman” (No such file or directory)), make sure you have the "thu
nar-volman" package installed.
(Thunar:3699): thunar-WARNING **: 06:04:44.264: Failed to launch the volume manager (Failed to execute child process “thunar-volman” (No such file or directory)), make sure you have the "thunar-volman" package installed.
(Thunar:3699): thunar-WARNING **: 06:04:46.523: Failed to launch the volume manager (Failed to execute child process “thunar-volman” (No such file or directory)), make sure you have the "thunar-volman" package installed.
my-appvm: Starting GUI
my-appvm: Starting AUDIO
my-appvm: Sending monitor layout
2022-09-05 06:04:55,156 icon-receiver: connected: my-appvm
[xcb] Unknown sequence number while processing queue
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
xfce4-panel: xcb_io.c:260: poll_for_event: Assertion `!xcb_xlib_threads_sequence_lost' failed.
A forum user also reported the panel disappearing, but I'm not sure if it's the same bug:
https://forum.qubes-os.org/t/13516
Happened again this morning.
journalctl
Sep 10 06:46:00 dom0 audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-16890-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 10 06:46:00 dom0 kernel: audit: type=1130 audit(1662788760.366:371): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-16890-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 10 06:46:00 dom0 systemd-coredump[16891]: Process 7599 (xfce4-panel) of user 1000 dumped core.
Stack trace of thread 7599:
#0 0x00007f56be5387d5 raise (libc.so.6 + 0x3c7d5)
#1 0x00007f56be52194d abort (libc.so.6 + 0x2594d)
#2 0x00007f56be521769 __assert_fail_base.cold (libc.so.6 + 0x25769)
#3 0x00007f56be530e86 __assert_fail (libc.so.6 + 0x34e86)
#4 0x00007f56bf67b9f3 poll_for_event (libX11.so.6 + 0x469f3)
#5 0x00007f56bf67ba9d poll_for_response (libX11.so.6 + 0x46a9d)
#6 0x00007f56bf67bd9a _XEventsQueued (libX11.so.6 + 0x46d9a)
#7 0x00007f56bf66d681 XPending (libX11.so.6 + 0x38681)
#8 0x00007f56bed88a83 gdk_event_source_check (libgdk-3.so.0 + 0x72a83)
#9 0x00007f56be85d4b9 g_main_context_check (libglib-2.0.so.0 + 0x524b9)
#10 0x00007f56be85da55 g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52a55)
#11 0x00007f56be85de33 g_main_loop_run (libglib-2.0.so.0 + 0x52e33)
#12 0x00007f56bf07d99d gtk_main (libgtk-3.so.0 + 0x25c99d)
#13 0x00005f4ed45839c7 main (xfce4-panel + 0x179c7)
#14 0x00007f56be523082 __libc_start_main (libc.so.6 + 0x27082)
#15 0x00005f4ed4583f9e _start (xfce4-panel + 0x17f9e)
Stack trace of thread 7602:
#0 0x00007f56be5f286f __poll (libc.so.6 + 0xf686f)
#1 0x00007f56be85daae g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52aae)
#2 0x00007f56be85dbe3 g_main_context_iteration (libglib-2.0.so.0 + 0x52be3)
#3 0x00007f56be85dc31 glib_worker_main (libglib-2.0.so.0 + 0x52c31)
#4 0x00007f56be8877f2 g_thread_proxy (libglib-2.0.so.0 + 0x7c7f2)
#5 0x00007f56be3af432 start_thread (libpthread.so.0 + 0x9432)
#6 0x00007f56be5fd6d3 __clone (libc.so.6 + 0x1016d3)
Stack trace of thread 7604:
#0 0x00007f56be5f286f __poll (libc.so.6 + 0xf686f)
#1 0x00007f56be85daae g_main_context_iterate.constprop.0 (libglib-2.0.so.0 + 0x52aae)
#2 0x00007f56be85de33 g_main_loop_run (libglib-2.0.so.0 + 0x52e33)
#3 0x00007f56beab16aa gdbus_shared_thread_func (libgio-2.0.so.0 + 0x1226aa)
#4 0x00007f56be8877f2 g_thread_proxy (libglib-2.0.so.0 + 0x7c7f2)
#5 0x00007f56be3af432 start_thread (libpthread.so.0 + 0x9432)
#6 0x00007f56be5fd6d3 __clone (libc.so.6 + 0x1016d3)
Sep 10 06:46:00 dom0 systemd[1]: [email protected]: Succeeded.
Sep 10 06:46:00 dom0 kernel: audit: type=1131 audit(1662788760.650:372): pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-16890-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 10 06:46:00 dom0 audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 msg='unit=systemd-coredump@0-16890-0 comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success'
Sep 10 06:46:00 dom0 audit: BPF prog-id=0 op=UNLOAD
Sep 10 06:46:00 dom0 audit: BPF prog-id=0 op=UNLOAD
Sep 10 06:46:00 dom0 audit: BPF prog-id=0 op=UNLOAD