Qubes OS 4.0の再起動/終了中にタイムアウトによる遅延/遅延なしで実行中の各仮想マシンを安全にシャットダウンする方法は？ (システムの問題)

Question 1

トラブルシューティング済みqubes-gui-dom0-4.0.8-1.29.fc25渡すこれコードの変更（これ犯罪）。
だから赤スズメこれ以上回避策は必要ありません。

産む犯罪ここで：

From 612cfe5925d32d8af0269163ee3ad627de4a8226 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <[email protected]>
Date: Thu, 13 Sep 2018 12:22:19 +0200
Subject: [PATCH] xside: avoid making X11 calls in signal handler

This is very simlar fix to QubesOS/qubes-issues#1406
2148a00 "Do not make X11 requests in X11 error handler"

Since signals can be sent asynchronously at any time, it could also hit
processing another X11 message. For this reason, avoid making X11 calls
if exit() is called from signal handler.

Fixes QubesOS/qubes-issues#1581
---
 gui-daemon/xside.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gui-daemon/xside.c b/gui-daemon/xside.c
index cca28da..3e12012 100644
--- a/gui-daemon/xside.c
+++ b/gui-daemon/xside.c
@@ -2455,6 +2455,13 @@ static void handle_message(Ghandles * g)
 /* signal handler - connected to SIGTERM */
 static void dummy_signal_handler(int UNUSED(x))
 {
+    /* The exit(0) below will call release_all_mapped_mfns (registerd with
+     * atexit(3)), which would try to release window images with XShmDetach. We
+     * can't send X11 requests if one is currently being handled. Since signals
+     * are asynchronous, we don't know that. Clean window images
+     * without calling to X11. And hope that X server will call XShmDetach
+     * internally when cleaning windows of disconnected client */
+    release_all_shm_no_x11_calls();
     exit(0);
 }

これの目的は、qubes-guid安全なシャットダウン（SIGTERMなど）を許可して、redsparrowがSIGKILLを実行する必要がないようにすることです。その他の情報については、redsparrowをご覧ください。回答。

Answer

トラブルシューティング済みqubes-gui-dom0-4.0.8-1.29.fc25渡すこれコードの変更（これ犯罪）。
だから赤スズメこれ以上回避策は必要ありません。

産む犯罪ここで：

From 612cfe5925d32d8af0269163ee3ad627de4a8226 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marek=20Marczykowski-G=C3=B3recki?=
 <[email protected]>
Date: Thu, 13 Sep 2018 12:22:19 +0200
Subject: [PATCH] xside: avoid making X11 calls in signal handler

This is very simlar fix to QubesOS/qubes-issues#1406
2148a00 "Do not make X11 requests in X11 error handler"

Since signals can be sent asynchronously at any time, it could also hit
processing another X11 message. For this reason, avoid making X11 calls
if exit() is called from signal handler.

Fixes QubesOS/qubes-issues#1581
---
 gui-daemon/xside.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/gui-daemon/xside.c b/gui-daemon/xside.c
index cca28da..3e12012 100644
--- a/gui-daemon/xside.c
+++ b/gui-daemon/xside.c
@@ -2455,6 +2455,13 @@ static void handle_message(Ghandles * g)
 /* signal handler - connected to SIGTERM */
 static void dummy_signal_handler(int UNUSED(x))
 {
+    /* The exit(0) below will call release_all_mapped_mfns (registerd with
+     * atexit(3)), which would try to release window images with XShmDetach. We
+     * can't send X11 requests if one is currently being handled. Since signals
+     * are asynchronous, we don't know that. Clean window images
+     * without calling to X11. And hope that X server will call XShmDetach
+     * internally when cleaning windows of disconnected client */
+    release_all_shm_no_x11_calls();
     exit(0);
 }

これの目的は、qubes-guid安全なシャットダウン（SIGTERMなど）を許可して、redsparrowがSIGKILLを実行する必要がないようにすることです。その他の情報については、redsparrowをご覧ください。回答。

Question 2

私はAfter=dev-block-253:0.deviceデバイスが存在することを確認するためにaを使うべきではないと思います/dev。RequiresMountsFor=/my/mountpoint引用する）の代わりに、これを行うと、ファイルシステムが正しい時間に実際にマウント（およびアンマウント）されます。

Answer

私はAfter=dev-block-253:0.deviceデバイスが存在することを確認するためにaを使うべきではないと思います/dev。RequiresMountsFor=/my/mountpoint引用する）の代わりに、これを行うと、ファイルシステムが正しい時間に実際にマウント（およびアンマウント）されます。

Question 3

私が一つ見つけた解決策しかし、根本的な問題は残っています（*.devicexfceで再起動（またはシャットダウン）した後、sは他のすべてと同時に停止します）ログがあります。ここ私が使用するサービスファイルを含めると、90秒後に同時に2つのタイムアウトが表示されます。

回避策は次のとおりです。再起動/終了ステップの早い段階で別のサービスを使用すると、redsparrow.serviceそうなりますpkill -9 qubes-guid（これは-9必要です。つまり、pkillSIGTERMはこれを行いません）。サービスは停止しようとすると同時に実行されます*.devices（例/dev/dm-0：）。それ以外の場合はqubes-core.service実行できません。この場合、pkillタイムアウト（デフォルトでは90秒後）後にデバイスが停止するまで実行されません。qubes-core.serviceスクリプトを使用して実行されているすべての仮想マシンをシャットダウンすることはまだ同じですが、もはやpreshutdown心配する必要はありませんqubes-guid。

以下は3つのファイルです。

$ ls -la ~/bin/preshutdown 
-rwxrwxr-x 1 root root 517 Sep 11 11:21 /home/ctor/bin/preshutdown

$ ls -la /usr/lib/systemd/system/qubes-core.service
-rw-r--r-- 1 root root 4339 Sep 11 11:09 /usr/lib/systemd/system/qubes-core.service

$ ls -la /usr/lib/systemd/system/redsparrow.service
-rw-r--r-- 1 root root 4434 Sep 11 11:15 /usr/lib/systemd/system/redsparrow.service

preshutdown:

#!/bin/bash

tput -Txterm-256color setab 2;echo "Starting $0 `date` `cat /proc/uptime`";echo;tput -Txterm-256color sgr0;
xl list
time qvm-shutdown --verbose --all --wait; ec="$?"
echo "exitcode: '$ec'"
time while xl list|grep -q -F '(null)'; do xl list;sleep 1; done #this only happens if there are any qubes-guid pids active (eg. pkill -9 qubes-guid is required to never see any of these '(null)'s                                                                                                                                  
tput -Txterm-256color setab 1;echo "Ending $0 on `date` `cat /proc/uptime`";echo;tput -Txterm-256color sgr0;
exit $ec

qubes-core.service:

[Unit]
Description=Qubes Dom0 startup setup
After=qubes-db-dom0.service libvirtd.service xenconsoled.service qubesd.service qubes-qmemman.service
Before=redsparrow.service

[Service]
Type=oneshot
StandardOutput=syslog
RemainAfterExit=yes
# Needed to avoid rebooting before all VMs have shut down.
TimeoutStopSec=180
ExecStart=/usr/lib/qubes/startup-misc.sh
ExecStop=/home/ctor/bin/preshutdown
# QubesDB daemons stop after 60s timeout in worst case; speed it up, since no
# VMs are running now
ExecStop=-/usr/bin/pkill qubesdb-daemon
#ExecStop=/usr/bin/true

[Install]
WantedBy=multi-user.target
Also=qubes-meminfo-writer-dom0.service qubes-qmemman.service
Alias=qubes_core.service

redsparrow.service:

[Unit]
Description=Red Sparrow
After=qubes-db-dom0.service libvirtd.service xenconsoled.service qubesd.service qubes-qmemman.service qubes-core.service


PartOf=graphical.target
BindsTo=graphical.target

#note: after modifying this file, I'm doing: systemctl daemon-reload 

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/bin/echo "Red Sparrow START"
ExecStop=-/usr/bin/echo "Red Sparrow stopping"
#ExecStop=-/usr/bin/ps axuw
#^ the same only 1 pid exists here: [  435.084168] ps[4348]: ctor      3706  0.0  0.1 160852  5820 ?        RLs  10:30   0:00 /usr/bin/qubes-guid -N sys-net -c 0xcc0000 -i /usr/share/icons/hicolor/128x128/devices/appvm-red.png -l 1 -q -d 1 -n
#ExecStop=-/usr/bin/sleep 2
#ExecStop=-/usr/bin/pkill qubes-guid
#ExecStop=-/usr/bin/sleep 2
#ExecStop=-/usr/bin/ps axuw
#^ the only thing that remains: [   80.569153] ps[4096]: ctor      3798  4.5  0.1 160856  5864 ?        RLs  10:28   0:02 /usr/bin/qubes-guid -N sys-net -c 0xcc0000 -i /usr/share/icons/hicolor/12
ExecStop=-/usr/bin/pkill -9 qubes-guid
#ExecStop=/home/ctor/bin/preshutdown
ExecStop=-/usr/bin/echo "Red Sparrow stopped"

[Install]
WantedBy=graphical.target

すべて有効です。

$ systemctl  status qubes-core redsparrow
● qubes-core.service - Qubes Dom0 startup setup
   Loaded: loaded (/usr/lib/systemd/system/qubes-core.service; enabled; vendor preset: enabled)
   Active: active (exited) since Tue 2018-09-11 20:29:02 CEST; 33min ago
  Process: 1957 ExecStart=/usr/lib/qubes/startup-misc.sh (code=exited, status=0/SUCCESS)
 Main PID: 1957 (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 4915)
   CGroup: /system.slice/qubes-core.service

● redsparrow.service - Red Sparrow
   Loaded: loaded (/usr/lib/systemd/system/redsparrow.service; enabled; vendor preset: disabled)
   Active: active (exited) since Tue 2018-09-11 20:29:02 CEST; 33min ago
  Process: 2027 ExecStart=/usr/bin/echo Red Sparrow START (code=exited, status=0/SUCCESS)
 Main PID: 2027 (code=exited, status=0/SUCCESS)
    Tasks: 0 (limit: 4915)
   CGroup: /system.slice/redsparrow.service

Sep 11 20:29:02 dom0 echo[2027]: Red Sparrow START

xfceMenu->Logout->Restart（またはShutdown）でredsparrowのExecStopを使用すると、ExecStopが実行を開始できるようになりましたpkill -9 qubes-guid。qubes-core.serviceここログは次のとおりです。

[  200.591802] systemd-logind[2023]: System is rebooting.
[  200.595924] systemd[1]: Removed slice system-getty.slice.
[  200.596665] systemd[1]: Stopping Session 2 of user ctor.
[  200.596682] systemd[1]: Stopped target Sound Card.
[  200.596813] systemd[1]: Stopping Authorization Manager...
[  200.599840] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=61089422, total_mem_pref=2053975142.4, total_available_memory=29606214252.600002)
[  200.600535] qmemman.daemon.algo[2026]: left_memory=1809448348 acceptors_count=1
[  200.600732] systemd[1]: Stopping Manage Sound Card State (restore and store)...
[  200.601406] systemd[1]: Stopping RealtimeKit Scheduling Policy Service...
[  200.607158] alsactl[2021]: alsactl daemon stopped
[  200.615006] systemd[1]: Stopping User Manager for UID 1000...
[  200.616624] systemd[1]: Stopping Restore /run/initramfs on shutdown...
[  200.616918] systemd[1]: Stopping Accounts Service...
[  200.620666] systemd[1]: Stopped target Graphical Interface.
[  200.620734] systemd[1]: Stopped target Multi-User System.
[  200.620764] systemd[1]: Stopped target Login Prompts.
[  200.621105] systemd[1]: Stopped xen-init-dom0, initialise Dom0 configuration (xenstore nodes, JSON configuration stub).
[  200.621156] systemd[1]: Stopped target Timers.
[  200.621183] systemd[1]: Stopped Discard unused blocks once a week.
[  200.621201] systemd[1]: Stopped Daily Cleanup of Temporary Directories.
[  200.622702] systemd[1]: Stopping Red Sparrow...
[  200.622928] systemd[1]: Stopping Light Display Manager...
[  200.623165] systemd[1]: Stopping Command Scheduler...
[  200.624182] systemd[1]: Stopping Daemon for power management...
[  200.624282] systemd[1]: Stopping Serial Getty on hvc0...
[  200.625237] echo[4138]: Red Sparrow stopping
[  200.625703] crond[3466]: (CRON) INFO (Shutting down)
[  200.627458] lightdm[3468]: Error opening audit socket: Protocol not supported
[  200.636590] qubes.WindowIconUpdater-sys-net[3839]: Traceback (most recent call last):
[  200.638285] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 557, in wrapper
[  200.638607] qubes.WindowIconUpdater-sys-net[3839]:     return f(*args)
[  200.638857] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 596, in poll_for_event
[  200.639190] qubes.WindowIconUpdater-sys-net[3839]:     self.invalid()
[  200.639438] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 545, in invalid
[  200.639689] qubes.WindowIconUpdater-sys-net[3839]:     raise ConnectionException(err)
[  200.639929] qubes.WindowIconUpdater-sys-net[3839]: xcffib.ConnectionException: xcb connection errors because of socket, pipe and other stream errors.
[  200.640319] qubes.WindowIconUpdater-sys-net[3839]: 
[  200.640618] qubes.WindowIconUpdater-sys-net[3839]: During handling of the above exception, another exception occurred:
[  200.640889] qubes.WindowIconUpdater-sys-net[3839]: 
[  200.641333] qubes.WindowIconUpdater-sys-net[3839]: Traceback (most recent call last):
[  200.641586] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/qubes/icon-receiver", line 362, in <module>
[  200.641837] qubes.WindowIconUpdater-sys-net[3839]:     rcvd.handle_input()
[  200.642168] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/qubes/icon-receiver", line 347, in handle_input
[  200.642438] qubes.WindowIconUpdater-sys-net[3839]:     self.handle_events()
[  200.642694] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/qubes/icon-receiver", line 259, in handle_events
[  200.643110] qubes.WindowIconUpdater-sys-net[3839]:     for ev in iter(self.conn.poll_for_event, None):
[  200.643359] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 559, in wrapper
[  200.643601] qubes.WindowIconUpdater-sys-net[3839]:     self.invalid()
[  200.643838] qubes.WindowIconUpdater-sys-net[3839]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 545, in invalid
[  200.644193] qubes.WindowIconUpdater-sys-net[3839]:     raise ConnectionException(err)
[  200.644434] qubes.WindowIconUpdater-sys-net[3839]: xcffib.ConnectionException: xcb connection errors because of socket, pipe and other stream errors.
[  200.644677] qubes.WindowIconUpdater-sys-firewall[3864]: Traceback (most recent call last):
[  200.644965] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 557, in wrapper
[  200.645342] qubes.WindowIconUpdater-sys-firewall[3864]:     return f(*args)
[  200.645600] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 596, in poll_for_event
[  200.645849] qubes.WindowIconUpdater-sys-firewall[3864]:     self.invalid()
[  200.646243] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 545, in invalid
[  200.646531] qubes.WindowIconUpdater-sys-firewall[3864]:     raise ConnectionException(err)
[  200.646797] qubes.WindowIconUpdater-sys-firewall[3864]: xcffib.ConnectionException: xcb connection errors because of socket, pipe and other stream errors.
[  200.647162] qubes.WindowIconUpdater-sys-firewall[3864]: 
[  200.647424] qubes.WindowIconUpdater-sys-firewall[3864]: During handling of the above exception, another exception occurred:
[  200.647674] qubes.WindowIconUpdater-sys-firewall[3864]: 
[  200.647916] qubes.WindowIconUpdater-sys-firewall[3864]: Traceback (most recent call last):
[  200.648311] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/qubes/icon-receiver", line 362, in <module>
[  200.648558] qubes.WindowIconUpdater-sys-firewall[3864]:     rcvd.handle_input()
[  200.648807] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/qubes/icon-receiver", line 347, in handle_input
[  200.649139] qubes.WindowIconUpdater-sys-firewall[3864]:     self.handle_events()
[  200.649384] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/qubes/icon-receiver", line 259, in handle_events
[  200.649629] qubes.WindowIconUpdater-sys-firewall[3864]:     for ev in iter(self.conn.poll_for_event, None):
[  200.649878] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 559, in wrapper
[  200.650235] qubes.WindowIconUpdater-sys-firewall[3864]:     self.invalid()
[  200.650479] qubes.WindowIconUpdater-sys-firewall[3864]:   File "/usr/lib/python3.5/site-packages/xcffib/__init__.py", line 545, in invalid
[  200.650727] qubes.WindowIconUpdater-sys-firewall[3864]:     raise ConnectionException(err)
[  200.651978] qubes.WindowIconUpdater-sys-firewall[3864]: xcffib.ConnectionException: xcb connection errors because of socket, pipe and other stream errors.
[  200.652910] systemd[1]: Stopped Daemon for power management.
[  200.653152] systemd[1]: Stopped Command Scheduler.
[  200.653407] systemd[1]: Stopped Accounts Service.
[  200.653646] systemd[1]: Stopped Authorization Manager.
[  200.654222] systemd[1]: Stopped Serial Getty on hvc0.
[  200.654727] systemd[1]: Stopped RealtimeKit Scheduling Policy Service.
[  200.655287] systemd[1]: Stopped Manage Sound Card State (restore and store).
[  200.663540] systemd[1]: Removed slice system-serial\x2dgetty.slice.
[  200.672584] echo[4157]: Red Sparrow stopped
[  200.674556] systemd[1]: Stopped Red Sparrow.
[  200.699263] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=61089422, total_mem_pref=1527043584.0, total_available_memory=30133145811.0)
[  200.699587] qmemman.daemon.algo[2026]: left_memory=3881142054 acceptors_count=1
[  200.799498] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=61089422, total_mem_pref=1483161907.2, total_available_memory=30177027487.8)
[  200.799822] qmemman.daemon.algo[2026]: left_memory=4120066821 acceptors_count=1
[  200.826422] systemd[3567]: Received SIGRTMIN+24 from PID 4162 (kill).
[  200.828412] systemd[1]: Stopped User Manager for UID 1000.
[  200.865974] systemd[1]: Stopped Session 2 of user ctor.
[  200.866413] systemd[1]: Removed slice User Slice of ctor.
[  200.866537] systemd[1]: Stopping Login Service...
[  200.899754] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=61089422, total_mem_pref=1254328627.2, total_available_memory=30405860767.8)
[  200.901140] systemd[1]: Stopped Light Display Manager.
[  200.903464] qmemman.daemon.algo[2026]: left_memory=5636897981 acceptors_count=1
[  200.904710] systemd[1]: Starting Show Plymouth Reboot Screen...
[  200.907987] systemd[1]: Stopping Permit User Sessions...
[  200.914738] systemd[1]: Stopped Permit User Sessions.
[  200.918868] systemd[1]: Stopped Start Qubes VM sys-firewall.
[  200.920535] systemd[1]: Stopped Start Qubes VM sys-net.
[  200.922285] systemd[1]: Stopping Qubes memory information reporter...
[  200.924197] systemd[1]: Removed slice system-qubes\x2dvm.slice.
[  200.926371] systemd[1]: Stopped Qubes memory information reporter.
[  200.928154] systemd[1]: Started Show Plymouth Reboot Screen.
[  200.931635] systemd[1]: Stopping Qubes Dom0 startup setup...
[  200.933900] systemd[1]: Stopped Login Service.
[  200.936259] systemd[1]: Stopped target User and Group Name Lookups.
[  200.939732] preshutdown[4180]: [42mStarting /home/ctor/bin/preshutdown Tue Sep 11 11:23:01 CEST 2018 200.93 1122.69
[  200.947411] preshutdown[4180]: (B[mName                                        ID   Mem VCPUs  State   Time(s)
[  200.949391] preshutdown[4180]: Domain-0                                     0  4091     6     r-----      87.1
[  200.951247] preshutdown[4180]: sys-net                                      1  1584     2     -b----       7.6
[  200.953088] preshutdown[4180]: sys-net-dm                                   2   144     1     -b----      28.0
[  200.954922] preshutdown[4180]: sys-firewall                                 3  3983     2     -b----      11.8
[  201.016675] preshutdown[4180]: 2018-09-11 11:23:01,357 [MainProcess selector_events.__init__:65] asyncio: Using selector: EpollSelector
[  201.028315] qubesd[2019]: socket.send() raised exception.
[  201.030663] qubesd[2019]: socket.send() raised exception.
[  201.032457] qubesd[2019]: socket.send() raised exception.
[  201.034216] qubesd[2019]: socket.send() raised exception.
[  201.035962] qubesd[2019]: socket.send() raised exception.
[  201.064381] systemd[1]: Stopped Restore /run/initramfs on shutdown.
[  201.225628] qubesd[2019]: socket.send() raised exception.
[  201.227562] qubesd[2019]: socket.send() raised exception.
[  201.229354] qubesd[2019]: socket.send() raised exception.
[  201.231028] qubesd[2019]: socket.send() raised exception.
[  201.232667] qubesd[2019]: socket.send() raised exception.
[  201.234316] qubesd[2019]: socket.send() raised exception.
[  201.235938] qubesd[2019]: socket.send() raised exception.
[  201.237634] qubesd[2019]: socket.send() raised exception.
[  201.239364] qubesd[2019]: socket.send() raised exception.
[  201.241047] qubesd[2019]: socket.send() raised exception.
[  201.242875] qubesd[2019]: socket.send() raised exception.
[  201.244541] qubesd[2019]: socket.send() raised exception.
[  201.246804] qubesd[2019]: socket.send() raised exception.
[  201.248443] qubesd[2019]: socket.send() raised exception.
[  201.250096] qubesd[2019]: socket.send() raised exception.
[  201.251738] qubesd[2019]: socket.send() raised exception.
[  201.253419] qubesd[2019]: socket.send() raised exception.
[  201.255032] qubesd[2019]: socket.send() raised exception.
[  201.256755] qubesd[2019]: socket.send() raised exception.
[  201.258889] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=61089422, total_mem_pref=1213940019.2, total_available_memory=30446249375.8)
[  201.260626] qmemman.daemon.algo[2026]: left_memory=4911686116 acceptors_count=1
[  201.731202] qubesd[2019]: socket.send() raised exception.
[  201.740268] qubesd[2019]: socket.send() raised exception.
[  201.745647] qubesd[2019]: socket.send() raised exception.
[  201.747226] qubesd[2019]: socket.send() raised exception.
[  201.748701] qubesd[2019]: socket.send() raised exception.
[  201.750275] qubesd[2019]: socket.send() raised exception.
[  201.751786] qubesd[2019]: socket.send() raised exception.
[  201.753275] qubesd[2019]: socket.send() raised exception.
[  201.754712] qubesd[2019]: socket.send() raised exception.
[  201.756190] qubesd[2019]: socket.send() raised exception.
[  201.757710] qubesd[2019]: socket.send() raised exception.
[  201.759242] qubesd[2019]: socket.send() raised exception.
[  201.760601] qubesd[2019]: socket.send() raised exception.
[  201.762002] qubesd[2019]: socket.send() raised exception.
[  201.763410] qubesd[2019]: socket.send() raised exception.
[  201.764778] qubesd[2019]: socket.send() raised exception.
[  201.766153] qubesd[2019]: socket.send() raised exception.
[  201.767548] qubesd[2019]: socket.send() raised exception.
[  201.768842] qubesd[2019]: socket.send() raised exception.
[  202.692233] usb 1-13: USB disconnect, device number 3
[  202.938070] usb 1-13: new low-speed USB device number 5 using xhci_hcd
[  203.076940] usb 1-13: New USB device found, idVendor=1c4f, idProduct=0034, bcdDevice= 1.10
[  203.083241] usb 1-13: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  203.089527] usb 1-13: Product: Usb Mouse
[  203.095764] usb 1-13: Manufacturer: SIGMACHIP
[  203.105476] input: SIGMACHIP Usb Mouse as /devices/pci0000:00/0000:00:14.0/usb1/1-13/1-13:1.0/0003:1C4F:0034.0006/input/input20
[  203.106823] hid-generic 0003:1C4F:0034.0006: input,hidraw3: USB HID v1.10 Mouse [SIGMACHIP Usb Mouse] on usb-0000:00:14.0-13/input0
[  205.915385] systemd[1]: Received SIGRTMIN+20 from PID 4172 (plymouthd).
[  209.068302] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=61089422, total_mem_pref=1213940019.2, total_available_memory=30446249375.8)
[  209.070311] qmemman.daemon.algo[2026]: left_memory=4911686116 acceptors_count=1
[  209.546380] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=4252705625, total_mem_pref=864441446.4, total_available_memory=30793060151.6)
[  209.546778] qmemman.systemstate[2026]: stat: dom '0' act=27404795973 pref=864441446.4 last_target=27404795973
[  209.547128] qmemman.systemstate[2026]: stat: xenfree=4305134425 memset_reqs=[('0', 31625844096)]
[  209.547400] qmemman.systemstate[2026]: mem-set domain 0 to 31625844096
[  209.840745] dmeventd[920]: No longer monitoring thin pool qubes_dom0-pool00-tpool.
[  209.934055] lvm[920]: Monitoring thin pool qubes_dom0-pool00-tpool.
[  210.081859] dmeventd[920]: No longer monitoring thin pool qubes_dom0-pool00-tpool.
[  210.210190] lvm[920]: Monitoring thin pool qubes_dom0-pool00-tpool.
[  213.325837] pciback 0000:00:1f.6: disabling bus mastering
[  213.349492] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=37638021, total_mem_pref=864441446.4, total_available_memory=30799040670.6)
[  213.455122] pciback 0000:00:1f.6: restoring config space at offset 0x10 (was 0x0, writing 0xdf200000)
[  213.455289] pciback 0000:00:1f.6: restoring config space at offset 0x4 (was 0x100000, writing 0x100002)
[  213.567179] pciback 0000:00:1f.6: restoring config space at offset 0x10 (was 0x0, writing 0xdf200000)
[  213.567346] pciback 0000:00:1f.6: restoring config space at offset 0x4 (was 0x100000, writing 0x100002)
[  213.774489] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=187661981, total_mem_pref=864441446.4, total_available_memory=30949064630.6)
[  213.774891] qmemman.systemstate[2026]: stat: dom '0' act=31625844096 pref=864441446.4 last_target=31625844096
[  213.775249] qmemman.systemstate[2026]: stat: xenfree=240090781 memset_reqs=[('0', 31781692570)]
...
[  213.946074] qmemman.daemon.algo[2026]: balance_when_enough_memory(xen_free_memory=1695245711, total_mem_pref=864441446.4, total_available_memory=32612496834.6)
[  213.946439] qmemman.systemstate[2026]: stat: dom '0' act=31781692570 pref=864441446.4 last_target=31781692570
[  213.946719] qmemman.systemstate[2026]: stat: xenfree=1747674511 memset_reqs=[('0', 33443461342)]
[  213.947077] qmemman.systemstate[2026]: mem-set domain 0 to 33443461342
[  214.347377] dmeventd[920]: No longer monitoring thin pool qubes_dom0-pool00-tpool.
[  214.551177] lvm[920]: Monitoring thin pool qubes_dom0-pool00-tpool.
[  214.679097] dmeventd[920]: No longer monitoring thin pool qubes_dom0-pool00-tpool.
[  214.770524] lvm[920]: Monitoring thin pool qubes_dom0-pool00-tpool.
[  215.185692] preshutdown[4180]: real  0m14.238s
[  215.186110] preshutdown[4180]: user  0m0.066s
[  215.186406] preshutdown[4180]: sys   0m0.018s
[  215.186673] preshutdown[4180]: exitcode: '0'
[  215.191118] preshutdown[4180]: real  0m0.005s
[  215.191443] preshutdown[4180]: user  0m0.000s
[  215.191718] preshutdown[4180]: sys   0m0.007s
[  215.196536] preshutdown[4180]: [41mEnding /home/ctor/bin/preshutdown on Tue Sep 11 11:23:15 CEST 2018 215.19 1202.38
[  215.198502] preshutdown[4180]: (B[m
[  215.206933] qubesdb-daemon[2020]: terminating
[  215.207692] systemd[1]: Stopped Qubes Dom0 startup setup.
[  215.208143] systemd[1]: Stopped Qubes DB agent.
[  215.209235] systemd[1]: Stopping Qubes memory management daemon...
[  215.209358] systemd[1]: Stopping Xenconsoled - handles logging from guest consoles and hypervisor...
[  215.209485] systemd[1]: Stopping Virtualization daemon...
[  215.209585] systemd[1]: Stopping Qubes OS daemon...
[  215.213172] qubesd[2019]: caught SIGTERM, exiting
[  215.213861] systemd[1]: Stopped Qubes memory management daemon.
[  215.215044] systemd[1]: Stopped Xenconsoled - handles logging from guest consoles and hypervisor.
[  215.218932] libvirtd[2046]: S3 disabled
[  215.219387] libvirtd[2046]: S4 disabled
[  215.221252] systemd[1]: Stopped Virtualization daemon.
[  215.221362] systemd[1]: Stopped target Remote File Systems.
[  215.221496] systemd[1]: Stopping D-Bus System Message Bus...
[  215.221626] systemd[1]: Stopping The Xen xenstore...
[  215.222350] systemd[1]: Stopped The Xen xenstore.
[  215.226248] systemd[1]: Stopped D-Bus System Message Bus.
[  215.253063] systemd[1]: Stopped Qubes OS daemon.
[  215.254560] systemd[1]: Stopping LVM2 PV scan on device 253:0...
[  215.254639] systemd[1]: Stopped target Basic System.
[  215.254766] systemd[1]: Stopped target Sockets.
[  215.254861] systemd[1]: Closed Virtual machine lock manager socket.
[  215.254952] systemd[1]: Closed D-Bus System Message Bus Socket.
[  215.255007] systemd[1]: Closed Virtual machine log manager socket.
[  215.255060] systemd[1]: Stopped target Slices.
[  215.255266] systemd[1]: Removed slice User and Session Slice.
[  215.255339] systemd[1]: Stopped target System Initialization.
[  215.256645] systemd[1]: Stopping Load/Save Random Seed...
[  215.257975] systemd[1]: Stopping Update UTMP about System Boot/Shutdown...
[  215.258418] systemd[1]: Stopped Setup Virtual Console.
[  215.258801] systemd[1]: Stopped Load legacy module configuration.
[  215.258889] systemd[1]: Stopped target Encrypted Volumes.
[  215.260343] systemd[1]: Stopping Cryptography Setup for luks-9ed952b5-2aa8-4564-b700-fb23f5c9e94b...
[  215.260455] systemd[1]: Stopped Forward Password Requests to Plymouth Directory Watch.
[  215.260556] systemd[1]: Stopped target Paths.
[  215.264978] systemd[1]: Stopped Forward Password Requests to Wall Directory Watch.
[  215.266212] systemd[1]: Stopped Load/Save Random Seed.
[  215.268034] systemd[1]: Stopped Update UTMP about System Boot/Shutdown.
[  215.268401] systemd[1]: Stopped Create Volatile Files and Directories.
[  215.268447] systemd[1]: Stopped target Local File Systems.
[  215.269611] systemd[1]: Unmounting Temporary Directory...
[  215.270813] systemd[1]: Unmounting mount xenstore file system...
[  215.272169] systemd[1]: Unmounting /boot/efi...
[  215.273388] systemd[1]: Unmounting /run/user/1000...
[  215.274538] systemd[1]: Stopped Configure read-only root support.
[  215.277805] systemd[1]: Stopped LVM2 PV scan on device 253:0.
[  215.278047] systemd[1]: Unmounted Temporary Directory.
[  215.278274] systemd[1]: Stopped target Swap.
[  215.278431] systemd[1]: Removed slice system-lvm2\x2dpvscan.slice.
[  215.280718] systemd[1]: Unmounted mount xenstore file system.
[  215.282456] systemd[1]: Unmounted /run/user/1000.
[  215.286594] systemd[1]: Unmounting Mount /proc/xen files...
[  215.291600] systemd[1]: Unmounted /boot/efi.
[  215.293002] systemd[1]: Stopped File System Check on /dev/disk/by-uuid/181A-D5EF.
[  215.297142] systemd[1]: Removed slice system-systemd\x2dfsck.slice.
[  215.301093] systemd[1]: Stopped target Local File Systems (Pre).
[  215.302668] systemd[1]: Stopped Remount Root and Kernel File Systems.
[  215.307508] systemd[1]: Stopping Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling...
[  215.310823] systemd[1]: Stopped Create Static Device Nodes in /dev.
[  215.314899] systemd[1]: Unmounted Mount /proc/xen files.
[  215.330404] dmeventd[920]: No longer monitoring thin pool qubes_dom0-pool00-tpool.
[  215.343572] lvm[5225]:   48 logical volume(s) in volume group "qubes_dom0" unmonitored
[  215.344870] systemd[1]: Stopped Monitoring of LVM2 mirrors, snapshots etc. using dmeventd or progress polling.
[  215.346348] systemd[1]: Stopping LVM2 metadata daemon...
[  215.346491] lvmetad[931]: Failed to accept connection errno 11.
[  215.350566] systemd[1]: Stopped LVM2 metadata daemon.
[  220.082279] systemd-cryptsetup[5204]: Failed to deactivate: Device or resource busy
[  220.086230] systemd[1]: systemd-cryptsetup@luks\x2d9ed952b5\x2d2aa8\x2d4564\x2db700\x2dfb23f5c9e94b.service: Control process exited, code=exited status=1
[  220.088102] systemd[1]: Stopped Cryptography Setup for luks-9ed952b5-2aa8-4564-b700-fb23f5c9e94b.
[  220.089553] systemd[1]: systemd-cryptsetup@luks\x2d9ed952b5\x2d2aa8\x2d4564\x2db700\x2dfb23f5c9e94b.service: Unit entered failed state.
[  220.090953] systemd[1]: systemd-cryptsetup@luks\x2d9ed952b5\x2d2aa8\x2d4564\x2db700\x2dfb23f5c9e94b.service: Failed with result 'exit-code'.
[  220.091112] systemd[1]: Reached target Unmount All Filesystems.
[  220.095181] systemd[1]: Removed slice system-systemd\x2dcryptsetup.slice.
[  220.097862] systemd[1]: Reached target Shutdown.
[  220.099211] systemd[1]: Reached target Final Step.
[  220.100552] systemd[1]: Starting Reboot...
[  220.105370] systemd[1]: Shutting down.

（実際にここに全体を貼り付けることはできませんが、Body is limited to 30000 characters; you entered 35634.ポイントはすでに上にあるので）

Answer