第一次暂停时，尝试暂停但随后又恢复了。第二次成功（通常，并非总是如此）。很难重现，每次我看到它没有暂停，然后再次尝试，它就会正常工作。以下是发生这种情况时的系统日志输出。看到导致问题的原因了吗？
第一次
Feb 23 19:08:01 gaia-one anacron[4250]: Normal exit (0 jobs run) Feb 23 19:08:01 gaia-one anacron[4250]: Anacron 2.3 started on 2016-02-23 Feb 23 19:08:01 gaia-one dbus[693]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Feb 23 19:08:01 gaia-one dbus[693]: [system] Successfully activated service 'org.freedesktop.systemd1' Feb 23 19:08:01 gaia-one dbus[693]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper) Feb 23 19:08:01 gaia-one dbus[693]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Feb 23 19:08:01 gaia-one CRON[4087]: (elijah) CMD (/home/elijah/.oh-my-fish/custom/homeshick_backup.fish > /dev/null 2>&1) Feb 23 19:08:01 gaia-one NetworkManager[1017]: <info> (wlan0): taking down device. Feb 23 19:08:01 gaia-one NetworkManager[1017]: <info> (wlan0): cleaning up... Feb 23 19:08:01 gaia-one kernel: [67256.548085] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:08:01 gaia-one kernel: [67256.548080] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:08:01 gaia-one kernel: [67256.548076] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Feb 23 19:08:01 gaia-one kernel: [67256.548072] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:08:01 gaia-one kernel: [67256.548067] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:08:01 gaia-one kernel: [67256.548062] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Feb 23 19:08:01 gaia-one kernel: [67256.548056] cfg80211: World regulatory domain updated: Feb 23 19:08:01 gaia-one kernel: [67256.542861] cfg80211: Calling CRDA to update world regulatory domain Feb 23 19:08:01 gaia-one wpa_supplicant[1702]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:15:ff:9b:74:04 reason=3 locally_generated=1 Feb 23 19:08:01 gaia-one dnsmasq[2355]: setting upstream servers from DBus Feb 23 19:08:01 gaia-one NetworkManager[1017]: <info> Removing DNS information from /sbin/resolvconf Feb 23 19:08:01 gaia-one NetworkManager[1017]: <warn> DNS: plugin dnsmasq update failed Feb 23 19:08:01 gaia-one kernel: [67256.520251] wlan0: deauthenticating from 00:15:ff:9b:74:04 by local choice (reason=3) Feb 23 19:08:01 gaia-one avahi-daemon[846]: Received packet from invalid interface. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Interface wlan0.IPv4 no longer relevant for mDNS. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.4. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Withdrawing address record for 192.168.1.4 on wlan0. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Interface wlan0.IPv6 no longer relevant for mDNS. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::224:d7ff:feac:c9c8. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Withdrawing address record for fe80::224:d7ff:feac:c9c8 on wlan0. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Registering new address record for fe80::224:d7ff:feac:c9c8 on wlan0.*. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::224:d7ff:feac:c9c8. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv6 with address 2600:1017:b806:d0f4:224:d7ff:feac:c9c8. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Withdrawing address record for 2600:1017:b806:d0f4:224:d7ff:feac:c9c8 on wlan0. Feb 23 19:08:01 gaia-one avahi-daemon[846]: Withdrawing address record for 2600:1017:b806:d0f4:e458:1938:a989:e1fc on wlan0. Feb 23 19:08:01 gaia-one NetworkManager[1017]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 1048 Feb 23 19:08:00 gaia-one whoopsie[1242]: offline Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> (wlan0): deactivating device (reason 'sleeping') [37] Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> (wlan0): device state change: activated -> unmanaged (reason 'sleeping') [100 10 37] Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> NetworkManager state is now ASLEEP Feb 23 19:08:00 gaia-one kernel: [67255.406679] e1000e 0000:00:19.0: irq 55 for MSI/MSI-X Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> (eth0): taking down device. Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> (eth0): cleaning up... Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> (eth0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37] Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> sleeping or disabling... Feb 23 19:08:00 gaia-one NetworkManager[1017]: <info> sleep requested (sleeping: no enabled: yes)
第二次
Feb 23 19:21:26 gaia-one kernel: [68059.284945] PM: Preparing system for mem sleep Feb 23 19:21:26 gaia-one kernel: [68059.251312] PM: Syncing filesystems ... done. Feb 23 19:21:23 gaia-one anacron[15187]: Normal exit (0 jobs run) Feb 23 19:21:23 gaia-one anacron[15187]: Anacron 2.3 started on 2016-02-23 Feb 23 19:21:23 gaia-one dbus[693]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Feb 23 19:21:23 gaia-one dbus[693]: [system] Successfully activated service 'org.freedesktop.systemd1' Feb 23 19:21:23 gaia-one dbus[693]: [system] Activating service name='org.freedesktop.systemd1' (using servicehelper) Feb 23 19:21:23 gaia-one dbus[693]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Feb 23 19:21:23 gaia-one NetworkManager[1017]: <info> (wlan0): taking down device. Feb 23 19:21:23 gaia-one NetworkManager[1017]: <info> (wlan0): cleaning up... Feb 23 19:21:23 gaia-one kernel: [68055.992511] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:21:23 gaia-one kernel: [68055.992507] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:21:23 gaia-one kernel: [68055.992504] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) Feb 23 19:21:23 gaia-one kernel: [68055.992500] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:21:23 gaia-one kernel: [68055.992496] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Feb 23 19:21:23 gaia-one kernel: [68055.992492] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) Feb 23 19:21:23 gaia-one kernel: [68055.992485] cfg80211: World regulatory domain updated: Feb 23 19:21:23 gaia-one dnsmasq[2355]: setting upstream servers from DBus Feb 23 19:21:23 gaia-one kernel: [68055.987155] cfg80211: Calling CRDA to update world regulatory domain Feb 23 19:21:23 gaia-one NetworkManager[1017]: <info> Removing DNS information from /sbin/resolvconf Feb 23 19:21:23 gaia-one NetworkManager[1017]: <warn> DNS: plugin dnsmasq update failed Feb 23 19:21:23 gaia-one avahi-daemon[846]: Interface wlan0.IPv4 no longer relevant for mDNS. Feb 23 19:21:23 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.4. Feb 23 19:21:23 gaia-one avahi-daemon[846]: Withdrawing address record for 192.168.1.4 on wlan0. Feb 23 19:21:23 gaia-one wpa_supplicant[1702]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:15:ff:9b:74:04 reason=3 locally_generated=1 Feb 23 19:21:22 gaia-one kernel: [68055.955042] wlan0: deauthenticating from 00:15:ff:9b:74:04 by local choice (reason=3) Feb 23 19:21:22 gaia-one avahi-daemon[846]: Interface wlan0.IPv6 no longer relevant for mDNS. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::224:d7ff:feac:c9c8. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Withdrawing address record for fe80::224:d7ff:feac:c9c8 on wlan0. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Registering new address record for fe80::224:d7ff:feac:c9c8 on wlan0.*. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::224:d7ff:feac:c9c8. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv6 with address 2600:1017:b806:d0f4:224:d7ff:feac:c9c8. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Withdrawing address record for 2600:1017:b806:d0f4:224:d7ff:feac:c9c8 on wlan0. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Joining mDNS multicast group on interface wlan0.IPv6 with address 2600:1017:b806:d0f4:224:d7ff:feac:c9c8. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Leaving mDNS multicast group on interface wlan0.IPv6 with address 2600:1017:b806:d0f4:e458:1938:a989:e1fc. Feb 23 19:21:22 gaia-one avahi-daemon[846]: Withdrawing address record for 2600:1017:b806:d0f4:e458:1938:a989:e1fc on wlan0. Feb 23 19:21:22 gaia-one NetworkManager[1017]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 5186 Feb 23 19:21:21 gaia-one whoopsie[1242]: offline Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> (wlan0): deactivating device (reason 'sleeping') [37] Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> (wlan0): device state change: activated -> unmanaged (reason 'sleeping') [100 10 37] Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> NetworkManager state is now ASLEEP Feb 23 19:21:21 gaia-one kernel: [68054.855480] e1000e 0000:00:19.0: irq 55 for MSI/MSI-X Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> (eth0): taking down device. Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> (eth0): cleaning up... Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> (eth0): device state change: unavailable -> unmanaged (reason 'sleeping') [20 10 37] Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> sleeping or disabling... Feb 23 19:21:21 gaia-one NetworkManager[1017]: <info> sleep requested (sleeping: no enabled: yes)