Help with nested signal context warnings

[ttcoder at netcourrier.com]

> > Also, is there a way to get a Genode app
> > to output a stack trace - I can patch that warning mesage to output a
> > stack trace and at least see what actually happened?
> 
> Please have a look at the 'os/backtrace.h' helper.
> 
> https://github.com/genodelabs/genode/blob/master/repos/os/include/spec/x86_64
> /os/backtrace.h
> 
> To get useful output, please put the following line into the file
> etc/tools.conf within your build directory.
> 
>   CC_OPT += -fno-omit-frame-pointer

... and in case it's useful I'll add this:

https://chiselapp.com/user/ttcoder/repository/genode-book/wiki?name=Book:Tips

This is a (hastily put together) list of hints I collected from the mailing-list and from Norman over time, showing what to do with the backtrace addresses and such.

Cedric