Kernel Tuning: kernel.panic

Rather than working alphabetically through the list of parameters that may be tuned in the Linux kernel, I thought I’d spice things up and go with a nice and simple one to explain; kernel.panic.

Simply put, when this parameter has a value of “0” (that’s zero), and the kernel panics, the system in question will not reboot automatically, and will waiting for some TLC from a nearby Sys Admin.  If however, it is set to a value other than zero, it should ensure that the system will reboot, therefore hopefully causing only a short outage.

At this point, it might be worth while taking a look at the kdump documentation, to ensure that you have captured the vmcore files relating to the panicked kernel.

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