How do you tell you’re in the new kernel?

There doesn’t seem to be anything in /sys/kernel/ that indicates this.

I could parse /proc/cmdline for the absence of “crashkernel=“ for instance, but 
there are obvious pitfalls to that.

You’d think there would be a way for the kexec’d kernel to maintain some sort 
of marker making it obvious that this is the kexec’d kernel (especially if your 
system kernel and your crash kernel are the same, and only the cmdline 
arguments change).

Thanks,

-Philip


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