5d25fcb702
One problem with flaky tests is they often only fail under CI conditions which makes it hard to debug. We add an optional allow_fail job so developers can trigger the only the flaky tests in the CI environment if they are debugging. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20231201093633.2551497-8-alex.bennee@linaro.org>
93 lines
3.4 KiB
Python
93 lines
3.4 KiB
Python
# Linux initrd integration test.
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#
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# Copyright (c) 2018 Red Hat, Inc.
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#
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# Author:
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# Wainer dos Santos Moschetta <wainersm@redhat.com>
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#
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# This work is licensed under the terms of the GNU GPL, version 2 or
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# later. See the COPYING file in the top-level directory.
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import os
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import logging
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import tempfile
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from avocado_qemu import QemuSystemTest
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from avocado import skipUnless
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class LinuxInitrd(QemuSystemTest):
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"""
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Checks QEMU evaluates correctly the initrd file passed as -initrd option.
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:avocado: tags=arch:x86_64
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:avocado: tags=machine:pc
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"""
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timeout = 300
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def test_with_2gib_file_should_exit_error_msg_with_linux_v3_6(self):
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"""
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Pretends to boot QEMU with an initrd file with size of 2GiB
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and expect it exits with error message.
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Fedora-18 shipped with linux-3.6 which have not supported xloadflags
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cannot support more than 2GiB initrd.
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"""
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kernel_url = ('https://archives.fedoraproject.org/pub/archive/fedora/li'
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'nux/releases/18/Fedora/x86_64/os/images/pxeboot/vmlinuz')
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kernel_hash = '41464f68efe42b9991250bed86c7081d2ccdbb21'
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kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
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max_size = 2 * (1024 ** 3) - 1
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with tempfile.NamedTemporaryFile() as initrd:
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initrd.seek(max_size)
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initrd.write(b'\0')
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initrd.flush()
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self.vm.add_args('-kernel', kernel_path, '-initrd', initrd.name,
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'-m', '4096')
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self.vm.set_qmp_monitor(enabled=False)
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self.vm.launch()
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self.vm.wait()
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self.assertEqual(self.vm.exitcode(), 1)
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expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (
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max_size + 1)
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self.assertRegex(self.vm.get_log(), expected_msg)
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@skipUnless(os.getenv('QEMU_TEST_FLAKY_TESTS'), 'Test is unstable on GitLab')
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def test_with_2gib_file_should_work_with_linux_v4_16(self):
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"""
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:avocado: tags=flaky
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QEMU has supported up to 4 GiB initrd for recent kernel
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Expect guest can reach 'Unpacking initramfs...'
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"""
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kernel_url = ('https://archives.fedoraproject.org/pub/archive/fedora'
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'/linux/releases/28/Everything/x86_64/os/images/pxeboot/'
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'vmlinuz')
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kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
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kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
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max_size = 2 * (1024 ** 3) + 1
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with tempfile.NamedTemporaryFile() as initrd:
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initrd.seek(max_size)
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initrd.write(b'\0')
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initrd.flush()
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self.vm.set_console()
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kernel_command_line = 'console=ttyS0'
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self.vm.add_args('-kernel', kernel_path,
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'-append', kernel_command_line,
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'-initrd', initrd.name,
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'-m', '5120')
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self.vm.launch()
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console = self.vm.console_socket.makefile()
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console_logger = logging.getLogger('console')
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while True:
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msg = console.readline()
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console_logger.debug(msg.strip())
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if 'Unpacking initramfs...' in msg:
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break
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if 'Kernel panic - not syncing' in msg:
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self.fail("Kernel panic reached")
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