Re: [Qemu-devel] [PATCH v2 1/2] Acceptance tests: use linux-3.6 and set vm memory to 4GiB

[Wainer dos Santos Moschetta]

On 01/27/2019 11:15 PM, Li Zhijian wrote:
> QEMU have already supported to load up to 4G initrd if the sepcified memory is
> enough and XLF_CAN_BE_LOADED_ABOVE_4G is set by guest kernel
>
> linux-3.6 kernel shipped by Fedora-18 cannot support xldflags so that it
> cannot support loading more than 2GiB initrd
>
> CC: Wainer dos Santos Moschetta <address@hidden>
> CC: Caio Carrara <address@hidden>
> CC: Cleber Rosa <address@hidden>
> CC: Eduardo Habkost <address@hidden>
> CC: Philippe Mathieu-Daudé <address@hidden>
> Signed-off-by: Li Zhijian <address@hidden>
>
> ---
> V2: fix typos
> ---
>   tests/acceptance/linux_initrd.py | 14 ++++++++------
>   1 file changed, 8 insertions(+), 6 deletions(-)

Reviewed-by: Wainer dos Santos Moschetta <address@hidden>

Note to maintainers: the patch 02 implements a test case for 
https://www.mail-archive.com/address@hidden/msg588166.html which 
is in Paolo's queue already.

- Wainer


> diff --git a/tests/acceptance/linux_initrd.py b/tests/acceptance/linux_initrd.py
> index 737355c..b283715 100644
> --- a/tests/acceptance/linux_initrd.py
> +++ b/tests/acceptance/linux_initrd.py
> @@ -24,14 +24,16 @@ class LinuxInitrd(Test):
>   
>       timeout = 60
>   
> -    def test_with_2gib_file_should_exit_error_msg(self):
> +    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.
>           """
> -        kernel_url = ('https://mirrors.kernel.org/fedora/releases/28/'
> -                      'Everything/x86_64/os/images/pxeboot/vmlinuz')
> -        kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
> +        kernel_url = 
> ('https://archives.fedoraproject.org/pub/archive/fedora/li'
> +                      
> 'nux/releases/18/Fedora/x86_64/os/images/pxeboot/vmlinuz')
> +        kernel_hash = '41464f68efe42b9991250bed86c7081d2ccdbb21'
>           kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
>           max_size = 2 * (1024 ** 3) - 1
>   
> @@ -39,8 +41,8 @@ class LinuxInitrd(Test):
>               initrd.seek(max_size)
>               initrd.write(b'\0')
>               initrd.flush()
> -            cmd = "%s -kernel %s -initrd %s" % (self.qemu_bin, kernel_path,
> -                                                initrd.name)
> +            cmd = "%s -kernel %s -initrd %s -m 4096" % (
> +                  self.qemu_bin, kernel_path, initrd.name)
>               res = run(cmd, ignore_status=True)
>               self.assertEqual(res.exit_status, 1)
>               expected_msg = r'.*initrd is too large.*max: \d+, need %s.*' % (