Debugging an L4 task

Derick Swanepoel dswanepoel at
Thu Jun 2 10:59:10 CEST 2005

On 6/2/05, Frank Mehnert <fm3 at> wrote:
> Hi Derick,
> On Thursday 02 June 2005 10:23, Derick Swanepoel wrote:
> > I am trying to debug an L4 task that double pagefaults before reaching
> > the main function. How should one use the debugger to run a task so it
> > can be debugged without having to break into the debugger later? The
> > backtrace doesn't seem very useful because it looks like a stack
> > overflow due to infinite recursion.
> Why useless? What if it _is_ a recursion? Before continue to search,
> disassemble the binary and look which function is called from outs()
> (file log/lib/src/logliblinux.c). Start disassembling around 0x01604db0.
> Frank

I didn't think the backtrace would be much use because the stack
would've been corrupted due to the infinite recursion. But since I was
linking to the wrong logging library it's not a problem anymore.
Thanks for the debugging tip, though.


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