Symbol table for ddb not loaded? similar to kern/53056

[Jaromír Doleček <jaromir.dolecek%gmail.com@localhost>]

Hi,

with -current I'm getting this not so nice ddb backtrace on amd64
under XEN (regardless if DOM0 or DOMU):

?() at ffffffff80205935
?() at ffffffff8022c34d
?() at ffffffff8022c4a6
?() at ffffffff8021525f
?() at ffffffff8020ee02
?() at ffffffff80204d72
?() at ffffffff80837aa6

Is this something which was broken recently?

I see e.g. port-xen/48125 with nice backtracks will full function
names, but port-xen/53056 from Feb 2018 already complains about same
pretty much the same problem.

Jaromir