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如何增加内核的ring缓存大小？

Solution Verified - Updated -

Issue

如何增加内核的ring缓存大小？
为什么日志中丢失启动信息？
日志中丢失大量启动信息。
dmesg文件不包含所有启动时的日志信息。
想要在启动过程中拍错，但是一些启动信息丢失。

Environment

  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6

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