[Qemu-devel] [Bug 1728448] [NEW] qemu-system-arm segmentation fault with cpu cortex-m*

[Kevin]

Public bug reported:

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.

** Affects: qemu
     Importance: Undecided
         Status: New


** Tags: arm cortex cpu qemu segfault

** Tags added: qemu

** Tags added: arm

** Tags added: cortex cpu

** Tags added: segfault

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https://bugs.launchpad.net/bugs/1728448

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

Status in QEMU:
  New

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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