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/etc/kdump.conf ファイルに "path" が設定されていない場合、kdump サービスが initramfs の構築に失敗する理由

Solution In Progress - Updated -

Issue

  • /etc/kdump.conf ファイルに "path" が設定されていない場合、kdump サービスが initramfs の構築に失敗します。
  • kdump が失敗し、次のコールトレースが出力されます。

    # systemctl status kdump.service
    kdump.service - Crash recovery kernel arming
    Loaded: loaded (/usr/lib/systemd/system/kdump.service; enabled)
    Active: failed (Result: exit-code) since Tue 2015-07-28 04:00:54 PDT; 6s ago
    Process: 30341 ExecStop=/usr/bin/kdumpctl stop (code=exited, status=0/SUCCESS)
    Process: 30350 ExecStart=/usr/bin/kdumpctl start (code=exited, status=1/FAILURE)
    Main PID: 30350 (code=exited, status=1/FAILURE)
    
    Jul 28 04:00:53 hostname kdumpctl[30350]: Detected change(s) in the following file(s):
    Jul 28 04:00:53 hostname kdumpctl[30350]: /etc/kdump.conf
    Jul 28 04:00:53 hostname kdumpctl[30350]: Rebuilding /boot/initramfs-3.10.0-229.el7.x86_64kdump.img
    Jul 28 04:00:54 hostname kdumpctl[30350]: Dump path /var/crash//var/crash/ does not exist.
    Jul 28 04:00:54 hostname kdumpctl[30350]: mkdumprd: failed to make kdump initrd
    Jul 28 04:00:54 hostname kdumpctl[30350]: Starting kdump: [FAILED]
    Jul 28 04:00:54 hostname systemd[1]: kdump.service: main process exited, code=exited, status=1/FAILURE
    Jul 28 04:00:54 hostname systemd[1]: Failed to start Crash recovery kernel arming.
    Jul 28 04:00:54 hostname systemd[1]: Unit kdump.service entered failed state.
    

Environment

  • Red Hat Enterprise Linux 7.1
  • kexec-tools

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