Pierrick Bouvier <pierrick.bouv...@linaro.org> writes:
> This test was randomly failing on our CI, and on dev machines,
> especially with QEMU debug builds.
>
> From the information collected, it's related to an implementation choice
> in edk2 QEMU virt support. The workaround is to disable KASLR, to avoid
> accessing protected memory.
> Note: this is *not* needed for the similar test_aarch64_rme_sbsaref.
>
> More information is available on the associated GitLab issue.
>
> Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2823
> Signed-off-by: Pierrick Bouvier <pierrick.bouv...@linaro.org>
Reviewed-by: Alex Bennée <alex.ben...@linaro.org>
> ---
> tests/functional/test_aarch64_rme_virt.py | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/tests/functional/test_aarch64_rme_virt.py
> b/tests/functional/test_aarch64_rme_virt.py
> index f4ad4d33d58..a1abf584f0e 100755
> --- a/tests/functional/test_aarch64_rme_virt.py
> +++ b/tests/functional/test_aarch64_rme_virt.py
> @@ -87,7 +87,9 @@ def test_aarch64_rme_virt(self):
> self.vm.add_args('-fsdev',
> f'local,security_model=none,path={rme_stack},id=shr0')
> self.vm.add_args('-device', 'virtio-net-pci,netdev=net0')
> self.vm.add_args('-netdev', 'user,id=net0')
> - self.vm.add_args('-append', 'root=/dev/vda')
> + # We need to add nokaslr to avoid triggering this sporadic bug:
> + # https://gitlab.com/qemu-project/qemu/-/issues/2823
> + self.vm.add_args('-append', 'root=/dev/vda nokaslr')
>
> self.vm.launch()
> # Wait for host VM boot to complete.
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
