gdb not working properly?

[gruftie]

when searching a solution for mythtv crashing, someone told me to make a backtrace, so i compiled mythtv with debugging enabled and ran gdb:


gdb /usr/local/bin/mythfrontend


and on mythtv crash:


(gdb) thread apply all bt full


which told me at the end of output:


No symbol table info available.
Couldn't get registers: Kein passender Prozess gefunden.


so, the programmers of mythtv told me:


This has been popping up a bit. Gentoo has updated your system so that gdb no longer works properly ("Couldn't get registers"). There's a mismatch between your gcc, gdb, and libc.


may this be true? is there a problem with gdb? i recompiled it, but same problem. oh, and the version of gdb is 5.3, gentoo is up-to-date...

any help out there?

[gruftie]

no one else having such a problem?
can someone tell me, how i can test the functionality of gdb?
can i debug the debugger?

ANY help is very welcome!