JDB and sigma0

Adam Lackorzynski adam at os.inf.tu-dresden.de
Sun Dec 21 23:18:57 CET 2014

On Thu Dec 18, 2014 at 13:52:42 -0500, teclis High Elf wrote:
> Is there a way to use JDB to query sigma0 to see which task owns an
> address? Say for example I have a virtualization system built using Fiasco
> L4Re and all I have is the instruction pointer for where a potential
> problem, possibly a memory leak. Is there a way to use JDB to find out
> which task the L4Re system thinks owns that address?

With JDB you can inspect all the address spaces and thus also see which
areas of the virtual address space is valid in each task. Press 'p' on
the task in the 'Q' list. Be prepared that the same virtual addresses in
different tasks might have different contents.

Adam                 adam at os.inf.tu-dresden.de
  Lackorzynski         http://os.inf.tu-dresden.de/~adam/

More information about the l4-hackers mailing list