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[Qemu-devel] [Bug 1728448] Re: qemu-system-arm segmentation fault with c

From: Kevin
Subject: [Qemu-devel] [Bug 1728448] Re: qemu-system-arm segmentation fault with cpu cortex-m*
Date: Fri, 03 Nov 2017 18:28:21 -0000

Thank you for you answer.

I wanted to emulate under cortex-M3 because I need to exéutute an
executable who will install a kernel but only runs under cortex-M3, for
then realized fuzzing on this kernel.

But, I will try with freeRTOS.

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  qemu-system-arm segmentation fault with cpu cortex-m*

Status in QEMU:

Bug description:
  I try to run an emulation with qemu-system-arm under a cpu cortex-m3
  but any execution under the processor result by a segmentation fault.

  My command is : qemu-system-arm -m 256 -M versatilepb -cpu cortex-m3
  -kernel ~/qemu/wheezy/vmlinuz-3.2.0-4-versatile -initrd
  ~/qemu/wheezy/initrd.img-3.2.0-4-versatile -hda ~/qemu/wheezy/hda.img
  -append 'root=/dev/sda1'

  If a lauch the emulation without specifying a cpu equivalent to
  cortex-m*, the vm opens up well and works but I absolutely need to run
  it under cortex-m3.

  Do you have any idea why I have this problem only with this type of processor 

  I also try with other boards different from versatilepb but I have the
  same result.

  I am under ubuntu 17 64bits during my test.

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