Re: [kvm-unit-tests 2/5] lib: backtrace printing

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On Tue, Mar 1, 2016 at 2:58 PM, Peter Feiner <pfeiner@xxxxxxxxxx> wrote:
> On Tue, Mar 1, 2016 at 1:27 PM, Peter Feiner <pfeiner@xxxxxxxxxx> wrote:
>> -CFLAGS += $(call cc-option, -fomit-frame-pointer, "")
>> +CFLAGS += $(call cc-option, -fno-omit-frame-pointer, "")
>
> Please hold off on this series for now. -fno-omit-frame-pointer seems
> to break x86/emulator.flat. I'll look into it and reply when I've
> figured things out.

Apparently x86/emulator.flat is very fickle:

   -O0 causes #PF
   -fno-omit-frame-pointer causes triple fault
   -fno-omit-frame-pointer and -O0 causes #GP

Oye!
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