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如何在 Red Hat Enterprise Linux 上使用 kdump 对内核崩溃、挂起或重启进行故障排除

Solution Verified - Updated -

Issue

  • 如何在 RHEL 系统上配置 kexec/kdump?
  • 需要对内核崩溃/服务器崩溃进行根本原因分析 (RCA)
  • 如何对意外的重启进行故障排除和检查?
  • 如何在系统中生成一个内核内存转储 (vmcore)?
  • 系统进入挂起状态或变得无响应,如何进行故障排除?
  • 生成 vmcore 需要多长时间?
  • 生成 vmcore 需要多少磁盘空间?

Environment

  • Red Hat Enterprise Linux (RHEL)

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