本文介绍了Linux内核中panic和panic_on_oops文件的作用与配置方法。当这些文件被设置为非零值时，内核将在遇到错误状态后暂停一段时间再重启系统，有助于提高系统的可用性。特别是panic_on_oops文件，当其值设为1时，在遇到BUG或Oops错误时，会先暂停几秒以便将错误信息写入磁盘。
The panic file lets the user control
what happens when the kernel enters a panic state. If the value of either file is
0, the kernel will loop and therefore the machine will remain in the panic state
until manually rebooted. A non-zero value represents the number of seconds
the kernel should remain in panic mode before rebooting. Having the kernel
automatically reboot the system in the event of a panic could be a very useful
feature if high availability is a primary concern.
to 1, it informs the kernel to pause for a few seconds before panicking when
encountering a BUG or an Oops. This gives the klogd an opportunity to write
the Oops or BUG Report to the disk so that it can be easily examined when the
system is returned to a normal state.
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