红帽全球峰会8.7. 内核
crash --log dumpfile 选项已弃用
crash --log dumpfile 选项不再适用于内核版本 5.10 及更高版本。因此，crash --log 命令会失败，并显示出错消息 'crash:VMCOREINFO: no log buffer data'。
您可以使用 makedumpfile --dump-dmesg 作为一个临时解决方案，来只使用 vmcore 转储内核 dmesg 信息。
Jira:RHEL-52221[1]
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