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#!/usr/bin/env python3
#
# Linux initrd integration test.
#
# Copyright (c) 2018 Red Hat, Inc.
#
# Author:
# Wainer dos Santos Moschetta <wainersm@redhat.com>
#
# This work is licensed under the terms of the GNU GPL, version 2 or
# later. See the COPYING file in the top-level directory.
import os
import logging
import tempfile
from qemu_test import QemuSystemTest, Asset
from unittest import skipUnless
class LinuxInitrd(QemuSystemTest):
"""
Checks QEMU evaluates correctly the initrd file passed as -initrd option.
"""
timeout = 300
ASSET_F18_KERNEL = Asset(
('https://archives.fedoraproject.org/pub/archive/fedora/linux/'
'releases/18/Fedora/x86_64/os/images/pxeboot/vmlinuz'),
'1a27cb42559ce29237ac186699d063556ad69c8349d732bb1bd8d614e5a8cc2e')
ASSET_F28_KERNEL = Asset(
('https://archives.fedoraproject.org/pub/archive/fedora/linux/'
'releases/28/Everything/x86_64/os/images/pxeboot/vmlinuz'),
'd05909c9d4a742a6fcc84dcc0361009e4611769619cc187a07107579a035f24e')
def test_with_2gib_file_should_exit_error_msg_with_linux_v3_6(self):
"""
Pretends to boot QEMU with an initrd file with size of 2GiB
and expect it exits with error message.
Fedora-18 shipped with linux-3.6 which have not supported xloadflags
cannot support more than 2GiB initrd.
"""
self.set_machine('pc')
kernel_path = self.ASSET_F18_KERNEL.fetch()
max_size = 2 * (1024 ** 3) - 1
with tempfile.NamedTemporaryFile() as initrd:
initrd.seek(max_size)
initrd.write(b'\0')
initrd.flush()
self.vm.add_args('-kernel', kernel_path, '-initrd', initrd.name,
'-m', '4096')
self.vm.set_qmp_monitor(enabled=False)
self.vm.launch()
self.vm.wait()
self.assertEqual(self.vm.exitcode(), 1)
expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (
max_size + 1)
self.assertRegex(self.vm.get_log(), expected_msg)
@skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab')
def test_with_2gib_file_should_work_with_linux_v4_16(self):
"""
QEMU has supported up to 4 GiB initrd for recent kernel
Expect guest can reach 'Unpacking initramfs...'
"""
self.set_machine('pc')
kernel_path = self.ASSET_F28_KERNEL.fetch()
max_size = 2 * (1024 ** 3) + 1
with tempfile.NamedTemporaryFile() as initrd:
initrd.seek(max_size)
initrd.write(b'\0')
initrd.flush()
self.vm.set_console()
kernel_command_line = 'console=ttyS0'
self.vm.add_args('-kernel', kernel_path,
'-append', kernel_command_line,
'-initrd', initrd.name,
'-m', '5120')
self.vm.launch()
console = self.vm.console_socket.makefile()
console_logger = logging.getLogger('console')
while True:
msg = console.readline()
console_logger.debug(msg.strip())
if 'Unpacking initramfs...' in msg:
break
if 'Kernel panic - not syncing' in msg:
self.fail("Kernel panic reached")
if __name__ == '__main__':
QemuSystemTest.main()
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