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Had a kernel panic during boot with this release. Ubuntu 18.04, Dell R710, Xeon x5670.

Is there a way to log the stack trace, or is the stack trace saved to a default file location, when the kernel panic occurs early in the boot process?

Thanks.

I have very limited knowledge here but I'd guess it depends on the point in the boot process the panic occurs... if you don't have a writable filesystem or a network stack there isn't really a way to log anything.

cheesyking wrote:

I have very limited knowledge here but I'd guess it depends on the point in the boot process the panic occurs... if you don't have a writable filesystem or a network stack there isn't really a way to log anything.

Yeah, I'll have to fool around with the tools that drop to an alternate kernel, then log. There was not a filesystem mounted yet at the point of panic. Just rolled back to 4.15.0-70 to get going again, it was more of a curiosity of what 4.15.0-72 had fouled up.