Panic in a vkernel: getblk: vnode 0x669232e8 has no object!

[Nicolas Thery]

2008/4/2, Rumko <rumcic at gmail.com>:
> Hm:
>  "/home/var.vkernel/memimg.000000" is not a core dump: File format not
>  recognized" guess not? (tried it with gdb not kgdb)

I'm afraid there is no way to capture vkernel core dumps currently.
Simon posted a debug-oriented wish list a while ago and, IIRC, vkernel
core dumps were part of it.