[现象]
1、我在 centos7 中输入命令systemctl start docker，docker 成功启动后 centos7 崩溃了。（可重现）
2、Docker 曾经可用，直到我运行了 3 个 ZooKeeper。（我曾经在 docker 上运行多个 mysql）
3、我已经启动了kdump，你可以在日志中看到命令，但是找不到任何崩溃日志
4、日志（/var/log/message）已附加在最后
[环境]
系统版本：CentOS Linux release 7.9.2009 (Core)
内核：3.10.0-1127.el7.x86_64
硬件：
- 主板：c602 x79
- 中央处理器：e5-2651v2
- 网卡：rtl8111e
- 内存： 32GB
Docker 版本：20.10.8
/var/log/messages(可疑区域，日期已被删除，因为)
:23:47 localhost kdumpctl: kexec: loaded kdump kernel
:23:47 localhost kdumpctl: Starting kdump: [OK]
:23:47 localhost systemd: Started Crash recovery kernel arming.
:23:47 localhost systemd: Reached target Multi-User System.
:23:47 localhost systemd: Starting Update UTMP about System Runlevel Changes...
:23:47 localhost systemd: Started Stop Read-Ahead Data Collection 10s After Completed Startup.
:23:47 localhost systemd: Started Update UTMP about System Runlevel Changes.
:23:47 localhost systemd: Startup finished in 2.417s (kernel) + 2.908s (initrd) + 46.787s (userspace) = 7min 8.486s.
:24:17 localhost systemd: Starting Stop Read-Ahead Data Collection...
:24:17 localhost systemd: Started Stop Read-Ahead Data Collection.
:25:01 localhost systemd: [email protected] has no holdoff time, scheduling restart.
:25:01 localhost systemd: Stopped Getty on tty1.
:25:01 localhost systemd: Started Getty on tty1.
:33:01 localhost kernel: usb 2-1.8.2: USB disconnect, device number 5
:37:39 localhost systemd: Starting containerd container runtime...
:37:39 localhost systemd: Starting Docker Socket for the API.
:37:40 localhost systemd: Listening on Docker Socket for the API.
:37:40 localhost containerd: time="2021-09-11T:37:40.979654305Z" level=info msg="starting containerd" revision=e25210fe30a0a703442421b0f60afac609f950a3 version=1.4.9
:37:41 localhost containerd: time="2021-09-11T:37:41.017880066Z" level=info msg="loading plugin \"io.containerd.content.v1.content\"..." type=io.containerd.content.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.046969355Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.aufs\"..." type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.052233945Z" level=info msg="skip loading plugin \"io.containerd.snapshotter.v1.aufs\"..." error="aufs is not supported (modprobe aufs failed: exit status 1 \"modprobe: FATAL: Module aufs not found.\\n\"): skip plugin" type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.052286193Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.devmapper\"..." type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.052349781Z" level=warning msg="failed to load plugin io.containerd.snapshotter.v1.devmapper" error="devmapper not configured"
:37:41 localhost containerd: time="2021-09-11T:37:41.052378479Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.native\"..." type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.052471777Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.overlayfs\"..." type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.053092423Z" level=info msg="loading plugin \"io.containerd.snapshotter.v1.zfs\"..." type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.053398089Z" level=info msg="skip loading plugin \"io.containerd.snapshotter.v1.zfs\"..." error="path /var/lib/containerd/io.containerd.snapshotter.v1.zfs must be a zfs filesystem to be used with the zfs snapshotter: skip plugin" type=io.containerd.snapshotter.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.053434144Z" level=info msg="loading plugin \"io.containerd.metadata.v1.bolt\"..." type=io.containerd.metadata.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.053489834Z" level=warning msg="could not use snapshotter devmapper in metadata plugin" error="devmapper not configured"
:37:41 localhost containerd: time="2021-09-11T:37:41.053514718Z" level=info msg="metadata content store policy set" policy=shared
:37:41 localhost containerd: time="2021-09-11T:37:41.087627234Z" level=info msg="loading plugin \"io.containerd.differ.v1.walking\"..." type=io.containerd.differ.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087682763Z" level=info msg="loading plugin \"io.containerd.gc.v1.scheduler\"..." type=io.containerd.gc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087764475Z" level=info msg="loading plugin \"io.containerd.service.v1.introspection-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087827808Z" level=info msg="loading plugin \"io.containerd.service.v1.containers-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087858867Z" level=info msg="loading plugin \"io.containerd.service.v1.content-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087897052Z" level=info msg="loading plugin \"io.containerd.service.v1.diff-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087930083Z" level=info msg="loading plugin \"io.containerd.service.v1.images-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087958627Z" level=info msg="loading plugin \"io.containerd.service.v1.leases-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.087987536Z" level=info msg="loading plugin \"io.containerd.service.v1.namespaces-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.088012320Z" level=info msg="loading plugin \"io.containerd.service.v1.snapshots-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.088040922Z" level=info msg="loading plugin \"io.containerd.runtime.v1.linux\"..." type=io.containerd.runtime.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.088209635Z" level=info msg="loading plugin \"io.containerd.runtime.v2.task\"..." type=io.containerd.runtime.v2
:37:41 localhost containerd: time="2021-09-11T:37:41.088383718Z" level=info msg="loading plugin \"io.containerd.monitor.v1.cgroups\"..." type=io.containerd.monitor.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089300773Z" level=info msg="loading plugin \"io.containerd.service.v1.tasks-service\"..." type=io.containerd.service.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089376417Z" level=info msg="loading plugin \"io.containerd.internal.v1.restart\"..." type=io.containerd.internal.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089480059Z" level=info msg="loading plugin \"io.containerd.grpc.v1.containers\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089516019Z" level=info msg="loading plugin \"io.containerd.grpc.v1.content\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089542363Z" level=info msg="loading plugin \"io.containerd.grpc.v1.diff\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089566512Z" level=info msg="loading plugin \"io.containerd.grpc.v1.events\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089590946Z" level=info msg="loading plugin \"io.containerd.grpc.v1.healthcheck\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089616588Z" level=info msg="loading plugin \"io.containerd.grpc.v1.images\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089641570Z" level=info msg="loading plugin \"io.containerd.grpc.v1.leases\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089665884Z" level=info msg="loading plugin \"io.containerd.grpc.v1.namespaces\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089689848Z" level=info msg="loading plugin \"io.containerd.internal.v1.opt\"..." type=io.containerd.internal.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089825125Z" level=info msg="loading plugin \"io.containerd.grpc.v1.snapshots\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089860973Z" level=info msg="loading plugin \"io.containerd.grpc.v1.tasks\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089888395Z" level=info msg="loading plugin \"io.containerd.grpc.v1.version\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.089911617Z" level=info msg="loading plugin \"io.containerd.grpc.v1.introspection\"..." type=io.containerd.grpc.v1
:37:41 localhost containerd: time="2021-09-11T:37:41.105623258Z" level=info msg=serving... address=/run/containerd/containerd.sock.ttrpc
:37:41 localhost containerd: time="2021-09-11T:37:41.105746316Z" level=info msg=serving... address=/run/containerd/containerd.sock
:37:41 localhost containerd: time="2021-09-11T:37:41.106479058Z" level=info msg="containerd successfully booted in 0.174141s"
:37:41 localhost systemd: Started containerd container runtime.
:37:41 localhost systemd: Starting Docker Application Container Engine...
:37:42 localhost dockerd: time="2021-09-11T:37:42.445670896Z" level=info msg="Starting up"
:37:42 localhost dockerd: time="2021-09-11T:37:42.499983847Z" level=info msg="parsed scheme: \"unix\"" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.500030593Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.500079390Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock <nil> 0 <nil>}] <nil> <nil>}" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.500112412Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.584785856Z" level=info msg="parsed scheme: \"unix\"" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.584828999Z" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.584865289Z" level=info msg="ccResolverWrapper: sending update to cc: {[{unix:///run/containerd/containerd.sock <nil> 0 <nil>}] <nil> <nil>}" module=grpc
:37:42 localhost dockerd: time="2021-09-11T:37:42.584891670Z" level=info msg="ClientConn switching balancer to \"pick_first\"" module=grpc
:37:42 localhost kernel: TECH PREVIEW: Overlay filesystem may not be fully supported.#012Please review provided documentation for limitations.
:37:43 localhost dockerd: time="2021-09-11T:37:43.627726084Z" level=info msg="[graphdriver] using prior storage driver: overlay2"
:37:46 localhost dockerd: time="2021-09-11T:37:46.671085826Z" level=info msg="Loading containers: start."
:37:47 localhost kernel: Bridge firewalling registered
:37:47 localhost dockerd: time="2021-09-11T:37:47.752780431Z" level=info msg="Firewalld: docker zone already exists, returning"
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -D PREROUTING -m addrtype --dst-type LOCAL -j DOCKER' failed: iptables v1.4.21: Couldn't load target `DOCKER':No such file or directory#012#012Try `iptables -h' or 'iptables --help' for more information.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -D OUTPUT -m addrtype --dst-type LOCAL ! --dst 127.0.0.0/8 -j DOCKER' failed: iptables v1.4.21: Couldn't load target `DOCKER':No such file or directory#012#012Try `iptables -h' or 'iptables --help' for more information.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -D OUTPUT -m addrtype --dst-type LOCAL -j DOCKER' failed: iptables v1.4.21: Couldn't load target `DOCKER':No such file or directory#012#012Try `iptables -h' or 'iptables --help' for more information.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -D PREROUTING' failed: iptables: Bad rule (does a matching rule exist in that chain?).
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -D OUTPUT' failed: iptables: Bad rule (does a matching rule exist in that chain?).
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -F DOCKER' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t nat -X DOCKER' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -F DOCKER' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -X DOCKER' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -F DOCKER-ISOLATION-STAGE-1' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -X DOCKER-ISOLATION-STAGE-1' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -F DOCKER-ISOLATION-STAGE-2' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -X DOCKER-ISOLATION-STAGE-2' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -F DOCKER-ISOLATION' failed: iptables: No chain/target/match by that name.
:37:47 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -t filter -X DOCKER-ISOLATION' failed: iptables: No chain/target/match by that name.
:37:48 localhost kernel: ctnetlink v0.93: registering with nfnetlink.
:37:48 localhost NetworkManager[1455]: <info> [1631374668.1821] manager: (br-3e8779b04137): new Bridge device (/org/freedesktop/NetworkManager/Devices/4)
:37:48 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -D FORWARD -i br-3e8779b04137 -o br-3e8779b04137 -j DROP' failed: iptables: Bad rule (does a matching rule exist in that chain?).
:37:48 localhost dockerd: time="2021-09-11T:37:48.361956940Z" level=info msg="Firewalld: interface br-3e8779b04137 already part of docker zone, returning"
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4460] device (br-3e8779b04137): state change: unmanaged -> unavailable (reason 'connection-assumed', sys-iface-state: 'external')
:37:48 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): br-3e8779b04137: link is not ready
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4506] ifcfg-rh: add connection in-memory (8cb6ed3e-c2f6-4503-8e44-9d65152f118a,"br-3e8779b04137")
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4518] device (br-3e8779b04137): state change: unavailable -> disconnected (reason 'connection-assumed', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4535] device (br-3e8779b04137): Activation: starting connection 'br-3e8779b04137' (8cb6ed3e-c2f6-4503-8e44-9d65152f118a)
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4542] manager: (br-9fbe4f319a5f): new Bridge device (/org/freedesktop/NetworkManager/Devices/5)
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4551] device (br-3e8779b04137): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4559] device (br-3e8779b04137): state change: prepare -> config (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4571] device (br-3e8779b04137): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4575] device (br-3e8779b04137): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4585] device (br-3e8779b04137): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4589] device (br-3e8779b04137): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')
:37:48 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -D FORWARD -i br-9fbe4f319a5f -o br-9fbe4f319a5f -j DROP' failed: iptables: Bad rule (does a matching rule exist in that chain?).
:37:48 localhost NetworkManager[1455]: <info> [1631374668.4878] device (br-3e8779b04137): Activation: successful, device activated.
:37:48 localhost dbus[1378]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service'
:37:48 localhost systemd: Starting Network Manager Script Dispatcher Service...
:37:48 localhost dbus[1378]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
:37:48 localhost systemd: Started Network Manager Script Dispatcher Service.
:37:48 localhost nm-dispatcher: req:1 'up' [br-3e8779b04137]: new request (2 scripts)
:37:48 localhost nm-dispatcher: req:1 'up' [br-3e8779b04137]: start running ordered scripts...
:37:48 localhost dockerd: time="2021-09-11T:37:48.583068746Z" level=info msg="Firewalld: interface br-9fbe4f319a5f already part of docker zone, returning"
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6789] device (br-9fbe4f319a5f): state change: unmanaged -> unavailable (reason 'connection-assumed', sys-iface-state: 'external')
:37:48 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): br-9fbe4f319a5f: link is not ready
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6824] ifcfg-rh: add connection in-memory (d9c39609-5a81-4c0c-9a2e-66aed4a769bf,"br-9fbe4f319a5f")
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6832] device (br-9fbe4f319a5f): state change: unavailable -> disconnected (reason 'connection-assumed', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6845] device (br-9fbe4f319a5f): Activation: starting connection 'br-9fbe4f319a5f' (d9c39609-5a81-4c0c-9a2e-66aed4a769bf)
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6852] manager: (docker0): new Bridge device (/org/freedesktop/NetworkManager/Devices/6)
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6861] device (br-9fbe4f319a5f): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6870] device (br-9fbe4f319a5f): state change: prepare -> config (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6883] device (br-9fbe4f319a5f): state change: config -> ip-config (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6887] device (br-9fbe4f319a5f): state change: ip-config -> ip-check (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6898] device (br-9fbe4f319a5f): state change: ip-check -> secondaries (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.6902] device (br-9fbe4f319a5f): state change: secondaries -> activated (reason 'none', sys-iface-state: 'external')
:37:48 localhost NetworkManager[1455]: <info> [1631374668.7212] device (br-9fbe4f319a5f): Activation: successful, device activated.
:37:48 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -D FORWARD -i docker0 -o docker0 -j DROP' failed: iptables: Bad rule (does a matching rule exist in that chain?).
:37:48 localhost nm-dispatcher: req:2 'up' [br-9fbe4f319a5f]: new request (2 scripts)
:37:48 localhost nm-dispatcher: req:2 'up' [br-9fbe4f319a5f]: start running ordered scripts...
:37:48 localhost dockerd: time="2021-09-11T:37:48.814495830Z" level=info msg="Firewalld: interface docker0 already part of docker zone, returning"
:37:48 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready
:37:49 localhost dockerd: time="2021-09-11T:37:49.329036411Z" level=info msg="Removing stale sandbox 07a00f7a6d448fbc2d424b3f40e02804e5a318da64747564069613b8680894a8 (826b5a8a1f54e393b2704df6f6161d240774360fc78f665459f004017a6309a9)"
:37:49 localhost dockerd: time="2021-09-11T:37:49.451171310Z" level=warning msg="Error (Unable to complete atomic operation, key modified) deleting object [endpoint 9fbe4f319a5f9615ad30da427efdfa1f4aec7433f05414ef8bca9a195c3fb1ae 4d3ae9beda19dbb5f6904cdab192f453fb7efb53ea08257ad1c8b56da3d5dc49], retrying...."
:37:49 localhost dockerd: time="2021-09-11T:37:49.789055062Z" level=info msg="Removing stale sandbox 8a51708abb7d4047eb5b1dc37065c52fcc4095574b1af7d460ba895ff450957a (6b7ada22c7c67fe09476330809be6777b9f0b30ba6fb052280b2a860cf2cd817)"
:37:49 localhost dockerd: time="2021-09-11T:37:49.917783912Z" level=warning msg="Error (Unable to complete atomic operation, key modified) deleting object [endpoint 9fbe4f319a5f9615ad30da427efdfa1f4aec7433f05414ef8bca9a195c3fb1ae 2d814c6e343c2187523c4fd3504d72241d4e346229d15d05eaa263a4c1e5398d], retrying...."
:37:50 localhost dockerd: time="2021-09-11T:37:50.252645870Z" level=info msg="Removing stale sandbox 969a0ae49869fe6699b82181e28ac7d4754d7e041e1f1c8ecc2cd8db14f8d6e4 (d2fd607cea68e1c6bf73bb07899a1b641a6cbf5171448b813e03003f071a99db)"
:37:50 localhost dockerd: time="2021-09-11T:37:50.367769949Z" level=warning msg="Error (Unable to complete atomic operation, key modified) deleting object [endpoint 9fbe4f319a5f9615ad30da427efdfa1f4aec7433f05414ef8bca9a195c3fb1ae 5a9b2d3871542132b1f81822324c08bd20ec61ba5f0eca22fce26e6c31b60965], retrying...."
:37:50 localhost dockerd: time="2021-09-11T:37:50.759406735Z" level=info msg="Default bridge (docker0) is assigned with an IP address 172.17.0.0/16. Daemon option --bip can be used to set a preferred IP address"
:37:50 localhost firewalld[1447]: WARNING: COMMAND_FAILED: '/usr/sbin/iptables -w10 -D FORWARD -i docker0 -o docker0 -j DROP' failed: iptables: Bad rule (does a matching rule exist in that chain?).
:37:50 localhost dockerd: time="2021-09-11T:37:50.900241442Z" level=info msg="Firewalld: interface docker0 already part of docker zone, returning"
:37:51 localhost NetworkManager[1455]: <info> [1631374671.1592] manager: (vethce38a65): new Veth device (/org/freedesktop/NetworkManager/Devices/7)
:37:51 localhost kernel: br-9fbe4f319a5f: port 1(veth3d2e2ec) entered blocking state
:37:51 localhost kernel: br-9fbe4f319a5f: port 1(veth3d2e2ec) entered disabled state
:37:51 localhost kernel: device veth3d2e2ec entered promiscuous mode
:37:51 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): veth3d2e2ec: link is not ready
:37:51 localhost NetworkManager[1455]: <info> [1631374671.1608] manager: (veth3d2e2ec): new Veth device (/org/freedesktop/NetworkManager/Devices/8)
:37:51 localhost NetworkManager[1455]: <info> [1631374671.2200] manager: (veth8329e1f): new Veth device (/org/freedesktop/NetworkManager/Devices/9)
:37:51 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered blocking state
:37:51 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered disabled state
:37:51 localhost kernel: device veth94b8a31 entered promiscuous mode
:37:51 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): veth94b8a31: link is not ready
:37:51 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered blocking state
:37:51 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered forwarding state
:37:51 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered disabled state
:37:51 localhost NetworkManager[1455]: <info> [1631374671.2216] manager: (veth94b8a31): new Veth device (/org/freedesktop/NetworkManager/Devices/10)
:37:51 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered blocking state
:37:51 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered disabled state
:37:51 localhost kernel: device veth43d2419 entered promiscuous mode
:37:51 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): veth43d2419: link is not ready
:37:51 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered blocking state
:37:51 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered forwarding state
:37:51 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): br-9fbe4f319a5f: link becomes ready
:37:51 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered disabled state
:37:51 localhost NetworkManager[1455]: <info> [1631374671.3787] manager: (veth891ba21): new Veth device (/org/freedesktop/NetworkManager/Devices/11)
:37:51 localhost NetworkManager[1455]: <info> [1631374671.3804] manager: (veth43d2419): new Veth device (/org/freedesktop/NetworkManager/Devices/12)
:37:52 localhost containerd: time="2021-09-11T:37:52.679931815Z" level=info msg="starting signal loop" namespace=moby path=/run/containerd/io.containerd.runtime.v2.task/moby/6b7ada22c7c67fe09476330809be6777b9f0b30ba6fb052280b2a860cf2cd817 pid=9731
:37:52 localhost containerd: time="2021-09-11T:37:52.679927518Z" level=info msg="starting signal loop" namespace=moby path=/run/containerd/io.containerd.runtime.v2.task/moby/826b5a8a1f54e393b2704df6f6161d240774360fc78f665459f004017a6309a9 pid=9729
:37:52 localhost containerd: time="2021-09-11T:37:52.679885136Z" level=info msg="starting signal loop" namespace=moby path=/run/containerd/io.containerd.runtime.v2.task/moby/d2fd607cea68e1c6bf73bb07899a1b641a6cbf5171448b813e03003f071a99db pid=9730
:37:53 localhost dockerd: time="2021-09-11T:37:53Z" level=info msg="Firewalld: docker zone already exists, returning"
:37:53 localhost dockerd: time="2021-09-11T:37:53Z" level=info msg="Firewalld: docker zone already exists, returning"
:37:53 localhost dockerd: time="2021-09-11T:37:53Z" level=info msg="Firewalld: docker zone already exists, returning"
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): veth3d2e2ec: link becomes ready
:37:53 localhost kernel: br-9fbe4f319a5f: port 1(veth3d2e2ec) entered blocking state
:37:53 localhost kernel: br-9fbe4f319a5f: port 1(veth3d2e2ec) entered forwarding state
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): veth43d2419: link becomes ready
:37:53 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered blocking state
:37:53 localhost kernel: br-9fbe4f319a5f: port 3(veth43d2419) entered forwarding state
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
:37:53 localhost kernel: IPv6: ADDRCONF(NETDEV_CHANGE): veth94b8a31: link becomes ready
:37:53 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered blocking state
:37:53 localhost kernel: br-9fbe4f319a5f: port 2(veth94b8a31) entered forwarding state
:37:53 localhost NetworkManager[1455]: <info> [1631374673.3167] device (veth3d2e2ec): carrier: link connected
:37:53 localhost NetworkManager[1455]: <info> [1631374673.3173] device (br-9fbe4f319a5f): carrier: link connected
:37:53 localhost NetworkManager[1455]: <info> [1631374673.3175] device (veth43d2419): carrier: link connected
:37:53 localhost NetworkManager[1455]: <info> [1631374673.3180] device (veth94b8a31): carrier: link connected
:37:53 localhost dockerd: time="2021-09-11T:37:53.889460781Z" level=info msg="Loading containers: done."
:39:29 localhost kernel: microcode: microcode updated early to revision 0x42e, date = 2019-03-14
:39:29 localhost kernel: Initializing cgroup subsys cpuset
:39:29 localhost kernel: Initializing cgroup subsys cpu
:39:29 localhost kernel: Initializing cgroup subsys cpuacct
:39:29 localhost kernel: Linux version 3.10.0-1127.el7.x86_64
答案1
这是因为主板内存插槽接触不良。有趣的是，linux识别正常。只有在读取或写入内存插槽时才会崩溃，并且找不到任何日志，甚至bios日志。
内存占用越大，崩溃概率越大