kernel debug package ??

[Zenaan Harkness <zen@freedbms.net>]

OK, so I'm subscribed to tor-relay mailing list, and my relay node
jumps a couple minutes forward a few times a day, and it has been
suggested that I install a debug kernel, so that I can then check the
logs around the time the jump happens and see if there's any
interesting correlation.

So, I installed linux-image...-dbg but there's no new image. That
package seems to intsall symbols only.

Here's the suggestion:
> Can you rebuild you kernel with debug option and
> check what kernel events have the same timestamps

So, I'm wondering how to achieve this suggestion in our Debian
context. Any pointers appreciated - how to "check kernel events".

TIA
Zenaan