为什么系统在产卵后立即停止？

Question

在systemd中加载vpp.service时，我面临问题。我写了封信给你。

[Unit]
Description=Vector Packet Processing Process
After=syslog.target network.target auditd.service

[Service]
#ExecStartPre=-/bin/rm -f /dev/shm/db /dev/shm/global_vm /dev/shm/vpe-api
#ExecStartPre=-/sbin/modprobe uio_pci_generic
ExecStart=/usr/IMS/current/bin/vpp/vpp -c /usr/IMS/current/bin/vpp/startup_new.conf
Type=forking
Restart=on-failure
RestartSec=5s

[Install]
WantedBy=multi-user.target

我得到的输出如下：

vpp.service - Vector Packet Processing Process
   Loaded: loaded (/etc/systemd/system/vpp.service; disabled; vendor preset: disabled)
   Active: deactivating (stop-sigterm) since Tue 2020-01-21 11:34:26 IST; 58s ago
  Process: 2019 ExecStart=/usr/IMS/current/bin/vpp/vpp -c /usr/IMS/current/bin/vpp/startup_new.conf (code=exited, status=0/SUCCESS)
 Main PID: 2019 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/vpp.service
           └─2026 /usr/IMS/current/bin/vpp/vpp -c /usr/IMS/current/bin/vpp/startup_new.conf

Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: pppoe_plugin.so (PPPoE)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: router_plugin.so (router)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: srv6ad_plugin.so (Dynamic SRv6 proxy)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: srv6am_plugin.so (Masquerading SRv6 proxy)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: srv6as_plugin.so (Static SRv6 proxy)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: stn_plugin.so (VPP Steals the NIC for Container integration)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: svs_plugin.so (Source VRF Select)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: tlsopenssl_plugin.so (openssl based TLS Engine)
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:117: Plugin disabled (default): unittest_plugin.so
Jan 21 11:34:26 2-9.mavenir1.com vpp[2019]: load_one_plugin:189: Loaded plugin: vmxnet3_plugin.so (VMWare Vmxnet3 Device Plugin)

过了一段时间，我想我会像这样崩溃：

[root@2-9 system]# systemctl status vpp
● vpp.service - Vector Packet Processing Process
   Loaded: loaded (/etc/systemd/system/vpp.service; disabled; vendor preset: disabled)
   Active: inactive (dead)

    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #2  0x00007f41467cb5aa 0x7f41467cb5aa
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #3  0x00007f414611c5d0 0x7f414611c5d0
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #4  0x00007f4145e8b8d0 0x7f4145e8b8d0
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #5  0x00007f4145e90994 0x7f4145e90994
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #6  0x00007f4145eea984 0x7f4145eea984
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #7  0x00007f414520e5ac 0x7f414520e5ac
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #8  0x00007f41467cb9a7 0x7f41467cb9a7
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #9  0x0000000000406e1a 0x406e1a
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #10 0x00007f41450f4495 0x7f41450f4495
    Jan 21 11:32:20 2-9.mavenir1.com /usr/IMS/current/bin/vpp/vpp[1712]: #11 0x00000000004079ff 0x4079ff

有人能帮我吗？

Answer 1

系统没有阻止任何东西。您的d mon正在退出，systemd d正在清理您告诉它的辅助剩馀进程。

在某种程度上，这是因为您没有以VPP状态(即为了拥有nodaemon在配置文件中和要使用Type=simple )的方式运行它。

而且，您只为人们提供了一个没有符号的部分堆栈跟踪，以处理早期(而不是“过了一段时间”；阅读时间戳)的d mon的彻底崩溃。世界上没有洞察力的人没有希望去调试它。

有人能帮我吗？

因此，严格地说，答案是肯定的

再读

• https://unix.stackexchange.com/a/200365/5132