Re: [PATCH 04/10] tests/avocado: machine aarch64: standardize location and RO/RW access

[Cleber Rosa <crosa@redhat.com>]

Marcin Juszkiewicz <marcin.juszkiewicz@linaro.org> writes:

> W dniu 8.12.2023 o 20:09, Cleber Rosa pisze:
>> The tests under machine_aarch64_virt.py do not need read-write access
>> to the ISOs.  The ones under machine_aarch64_sbsaref.py, on the other
>> hand, will need read-write access, so let's give each test an unique
>> file.
>> 
>> And while at it, let's use a single code style and hash for the ISO
>> url.
>> 
>> Signed-off-by: Cleber Rosa<crosa@redhat.com>
>
> It is ISO file, so sbsa-ref tests should be fine with readonly as well.
>
> Nothing gets installed so nothing is written. We only test does boot works.

That was my original expectation too.  But, with nothing but the
following change:

diff --git a/tests/avocado/machine_aarch64_sbsaref.py b/tests/avocado/machine_aarch64_sbsaref.py
index 528c7d2934..436da4b156 100644
--- a/tests/avocado/machine_aarch64_sbsaref.py
+++ b/tests/avocado/machine_aarch64_sbsaref.py
@@ -129,7 +129,7 @@ def boot_alpine_linux(self, cpu):
             "-cpu",
             cpu,
             "-drive",
-            f"file={iso_path},format=raw",
+            f"file={iso_path},readonly=on,format=raw",
             "-device",
             "virtio-rng-pci,rng=rng0",
             "-object",

We get:

15:55:10 DEBUG| VM launch command: './qemu-system-aarch64 -display none -vga none -chardev socket,id=mon,fd=15 -mon chardev=mon,mode=control -machine sbsa-ref -
chardev socket,id=console,fd=20 -serial chardev:console -cpu cortex-a57 -drive if=pflash,file=/home/cleber/avocado/job-results/job-2023-12-13T15.55-28ef2b5/test
-results/tmp_dirx8p5xzt4/1-tests_avocado_machine_aarch64_sbsaref.py_Aarch64SbsarefMachine.test_sbsaref_alpine_linux_cortex_a57/SBSA_FLASH0.fd,format=raw -drive 
if=pflash,file=/home/cleber/avocado/job-results/job-2023-12-13T15.55-28ef2b5/test-results/tmp_dirx8p5xzt4/1-tests_avocado_machine_aarch64_sbsaref.py_Aarch64Sbsa
refMachine.test_sbsaref_alpine_linux_cortex_a57/SBSA_FLASH1.fd,format=raw -smp 1 -machine sbsa-ref -cpu cortex-a57 -drive file=/home/cleber/avocado/data/cache/b
y_location/0154b7cd3a4f5e135299060c8cabbeec10b70b6d/alpine-standard-3.17.2-aarch64.iso,readonly=on,format=raw -device virtio-rng-pci,rng=rng0 -object rng-random
,id=rng0,filename=/dev/urandom'

Followed by:

15:55:10 DEBUG| Failed to establish session:
  | Traceback (most recent call last):
  |   File "/home/cleber/src/qemu/python/qemu/qmp/protocol.py", line 425, in _session_guard
  |     await coro
  |   File "/home/cleber/src/qemu/python/qemu/qmp/qmp_client.py", line 253, in _establish_session
  |     await self._negotiate()
  |   File "/home/cleber/src/qemu/python/qemu/qmp/qmp_client.py", line 305, in _negotiate
  |     reply = await self._recv()
  |             ^^^^^^^^^^^^^^^^^^
  |   File "/home/cleber/src/qemu/python/qemu/qmp/protocol.py", line 1009, in _recv
  |     message = await self._do_recv()
  |               ^^^^^^^^^^^^^^^^^^^^^
  |   File "/home/cleber/src/qemu/python/qemu/qmp/qmp_client.py", line 402, in _do_recv
  |     msg_bytes = await self._readline()
  |                 ^^^^^^^^^^^^^^^^^^^^^^
  |   File "/home/cleber/src/qemu/python/qemu/qmp/protocol.py", line 977, in _readline
  |     raise EOFError
  | EOFError

With qemu-system-arch producing on stdout:

   qemu-system-aarch64: Block node is read-only

Any ideas on the reason or cause?

Thanks,
- Cleber.