[PATCH] improve xmon symbol lookup

[Olaf Hering]

 On Thu, Mar 04, Anton Blanchard wrote:

>
> > xmon will die reliable in symbol lookup, if the system is broken enough.
> >
> > This patch makes the lookup optional, E instead of e, T instead of t.
>
> Id love to know where we are locking up. Actually im not sure why we
> dont do the following, just wrap the entire kallsyms call with the
> __debugger_fault_handler stuff.

I will give it a try. another thing that bites me all the time:

3:mon> rd
cpu 3: Vector: 300 (Data Access) at [c000000141e82940]
    pc: c00000000004a6b8 ()
    lr: c00000000004a690 ()
    sp: c000000141e82bc0
   msr: a000000000001032
   dar: d
 dsisr: 40000000
  current = 0xc000000128405b50
  paca    = 0xc000000000532000
    pid   = 26138, comm = rpm
We are already in xmon
-ETOAST

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