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由于无法访问 NFS 服务器，因此无法暂停到 RAM

tag-icon • tag-icon networking kubuntu suspend nfs
由于无法访问 NFS 服务器，因此无法暂停到 RAM

使用 Kubuntu 16.04 系统后，我不再能够暂停到 RAM。这个功能以前一直有效，但几周前就停止了。非常烦人。我猜是某个更新搞砸了。

更新：即使从头开始安装 18.04.1，问题仍然存在。仍然无法暂停。

尝试通过 KDE 菜单暂停，KDE 停止，我永远看到鼠标指针停留在黑屏上。切换到控制台，系统日志告诉我

  1. NetworkManager 进入睡眠状态，
  2. 出现了 whoopsie，但无法访问 daisy.ubuntu.com。
  3. systemd 达到目标睡眠并开始挂起，达到计时器、路径、套接字、基本系统和默认。
  4. 内核尝试同步文件系统，这导致
  5. nfs 服务器没有响应。
  6. ksmserver 抱怨被阻塞了超过 120 秒。

有人能帮我吗？如果我遗漏了什么，系统日志会跟进。

avahi-daemon[972]: Withdrawing address record for 192.168.2.30 on enp3s0.
avahi-daemon[972]: Leaving mDNS multicast group on interface enp3s0.IPv4 with address 192.168.2.30.
avahi-daemon[972]: Interface enp3s0.IPv4 no longer relevant for mDNS.
dnsmasq[1091]: vorgelagerte Server von DBus gesetzt
dbus[956]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher
.service'
NetworkManager[961]: <info>  [1532090369.8150] device (enp3s0): state change: disconnected -> unmanaged (reason 'sleeping') [30 1
0 37]
systemd[1]: Starting Network Manager Script Dispatcher Service...
dbus[956]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
systemd[1]: Started Network Manager Script Dispatcher Service.
nm-dispatcher: req:1 'down' [enp3s0]: new request (1 scripts)
nm-dispatcher: req:1 'down' [enp3s0]: start running ordered scripts...
NetworkManager[961]: <info>  [1532090369.8403] device (enp3s0): link disconnected
whoopsie[1250]: [14:39:34] Cannot reach: https://daisy.ubuntu.com
whoopsie[1250]: [14:39:34] Cannot reach: https://daisy.ubuntu.com
acpid: client 1386[0:0] has disconnected
systemd[1]: Reached target Sleep.
systemd[1]: Starting Suspend...
systemd-sleep[9497]: Failed to connect to non-global ctrl_ifname: (nil)  error: No such file or directory
systemd-sleep[9498]: /lib/systemd/system-sleep/wpasupplicant failed with error code 255.
systemd-sleep[9497]: Suspending system...
kernel: [17527.365778] PM: suspend entry (deep)
org.kde.KScreen[2039]: kscreen: Primary output changed from KScreen::Output(Id: 448 , Name: "HDMI-0" ) ( "HDMI-0" ) to KScreen::O
org.kde.KScreen[2039]: kscreen: Primary output changed from KScreen::Output(Id: 448 , Name: "HDMI-0" ) ( "HDMI-0" ) to KScreen::Output(Id: 448 , Name: "HDMI-0" ) ( "HDMI-0" )
org.kde.KScreen[2039]: message repeated 3 times: [ kscreen: Primary output changed from KScreen::Output(Id: 448 , Name: "HDMI-0" ) ( "HDMI-0" ) to KScreen::Output(Id: 448 , Name: "HDMI-0" ) ( "HDMI-0" )]
systemd[9560]: Reached target Timers.
systemd[9560]: Reached target Paths.
systemd[9560]: Reached target Sockets.
systemd[9560]: Reached target Basic System.
systemd[9560]: Reached target Default.
systemd[9560]: Startup finished in 16ms.
systemd[1]: Requested transaction contradicts existing jobs: Transaction is destructive.
kernel: [17527.365780] PM: Syncing filesystems ... 
kernel: [17704.242663] nfs: server centaurus not responding, still trying

答案1

不管是什么问题，在过去 8 个月内部署更新后，问题就消失了。问题不再存在。

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