[Qemu-devel] [PATCH v2] Acceptance tests: add Linux initrd checking test

[Qemu-devel] [PATCH v2] Acceptance tests: add Linux initrd checking test

[Wainer dos Santos Moschetta]

QEMU used to exits with a not accurate error message when
an initrd > 2GiB was passed. That was fixed on patch:

	commit f3839fda5771596152b75dd1e1a6d050e6e6e380
	Author: Li Zhijian <lizhijian@cn.fujitsu.com>
	Date:   Thu Sep 13 18:07:13 2018 +0800

    	change get_image_size return type to int64_t

This change adds a regression test for that fix. It starts
QEMU with a 2GiB dummy initrd, and check it evaluates the file
size correctly and prints accurate message.

Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Caio Carrara <ccarrara@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---

Changes in v2:
 * disambiguous GB vs GiB in comments and commit msg [ehabkost]
 * uses max_size variable [crosa]
 * checks return code equals to 1 [ehabkost]
 * checks expected message contain needed max_size [crosa]

---
 tests/acceptance/linux_initrd.py | 48 ++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 tests/acceptance/linux_initrd.py

diff --git a/tests/acceptance/linux_initrd.py b/tests/acceptance/linux_initrd.py
new file mode 100644
index 0000000000..737355c2ef
--- /dev/null
+++ b/tests/acceptance/linux_initrd.py
@@ -0,0 +1,48 @@
+# Linux initrd acceptance 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 tempfile
+from avocado.utils.process import run
+
+from avocado_qemu import Test
+
+
+class LinuxInitrd(Test):
+    """
+    Checks QEMU evaluates correctly the initrd file passed as -initrd option.
+
+    :avocado: enable
+    :avocado: tags=x86_64
+    """
+
+    timeout = 60
+
+    def test_with_2gib_file_should_exit_error_msg(self):
+        """
+        Pretends to boot QEMU with an initrd file with size of 2GiB
+        and expect it exits with error message.
+        """
+        kernel_url = ('https://mirrors.kernel.org/fedora/releases/28/'
+                      'Everything/x86_64/os/images/pxeboot/vmlinuz')
+        kernel_hash = '238e083e114c48200f80d889f7e32eeb2793e02a'
+        kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash)
+        max_size = 2 * (1024 ** 3) - 1
+
+        with tempfile.NamedTemporaryFile() as initrd:
+            initrd.seek(max_size)
+            initrd.write(b'\0')
+            initrd.flush()
+            cmd = "%s -kernel %s -initrd %s" % (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.*' % (
+                max_size + 1)
+            self.assertRegex(res.stderr_text, expected_msg)
-- 
2.17.2

Re: [Qemu-devel] [PATCH v2] Acceptance tests: add Linux initrd checking test

[Eduardo Habkost]

On Fri, Nov 09, 2018 at 01:21:53PM -0500, Wainer dos Santos Moschetta wrote:
> QEMU used to exits with a not accurate error message when
> an initrd > 2GiB was passed. That was fixed on patch:
> 
> 	commit f3839fda5771596152b75dd1e1a6d050e6e6e380
> 	Author: Li Zhijian <lizhijian@cn.fujitsu.com>
> 	Date:   Thu Sep 13 18:07:13 2018 +0800
> 
>     	change get_image_size return type to int64_t
> 
> This change adds a regression test for that fix. It starts
> QEMU with a 2GiB dummy initrd, and check it evaluates the file
> size correctly and prints accurate message.
> 
> Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
> Reviewed-by: Caio Carrara <ccarrara@redhat.com>
> Reviewed-by: Cleber Rosa <crosa@redhat.com>
> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>

Queued for 4.0, thanks!

-- 
Eduardo

Re: [Qemu-devel] [PATCH v2] Acceptance tests: add Linux initrd checking test

[Eric Blake]

On 11/9/18 12:21 PM, Wainer dos Santos Moschetta wrote:
> QEMU used to exits with a not accurate error message when

s/exits/exit/
s/a not accurate/an inaccurate/

> an initrd > 2GiB was passed. That was fixed on patch:
> 
> 	commit f3839fda5771596152b75dd1e1a6d050e6e6e380
> 	Author: Li Zhijian <lizhijian@cn.fujitsu.com>
> 	Date:   Thu Sep 13 18:07:13 2018 +0800
> 
>      	change get_image_size return type to int64_t
> 
> This change adds a regression test for that fix. It starts
> QEMU with a 2GiB dummy initrd, and check it evaluates the file

s/check/checks that/

> size correctly and prints accurate message.

s/accurate/an accurate/

> 
> Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
> Reviewed-by: Caio Carrara <ccarrara@redhat.com>
> Reviewed-by: Cleber Rosa <crosa@redhat.com>
> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---


-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

Re: [Qemu-devel] [PATCH v2] Acceptance tests: add Linux initrd checking test

[Wainer dos Santos Moschetta]

Hi Eduardo,

Since you have already queued this patch for 4.0, I would like to know 
if I should send a v3 to address Eric's review. Or if you can edit the 
patch yourself given the changes are trivial.

Thanks!
- Wainer

On 11/13/2018 02:08 PM, Eric Blake wrote:
> On 11/9/18 12:21 PM, Wainer dos Santos Moschetta wrote:
>> QEMU used to exits with a not accurate error message when
>
> s/exits/exit/
> s/a not accurate/an inaccurate/
>
>> an initrd > 2GiB was passed. That was fixed on patch:
>>
>>     commit f3839fda5771596152b75dd1e1a6d050e6e6e380
>>     Author: Li Zhijian <lizhijian@cn.fujitsu.com>
>>     Date:   Thu Sep 13 18:07:13 2018 +0800
>>
>>          change get_image_size return type to int64_t
>>
>> This change adds a regression test for that fix. It starts
>> QEMU with a 2GiB dummy initrd, and check it evaluates the file
>
> s/check/checks that/
>
>> size correctly and prints accurate message.
>
> s/accurate/an accurate/
>
>>
>> Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
>> Reviewed-by: Caio Carrara <ccarrara@redhat.com>
>> Reviewed-by: Cleber Rosa <crosa@redhat.com>
>> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
>> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
>> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
>> ---
>
>

Re: [Qemu-devel] [PATCH v2] Acceptance tests: add Linux initrd checking test

[Eduardo Habkost]

On Thu, Nov 15, 2018 at 12:41:09PM -0200, Wainer dos Santos Moschetta wrote:
> Hi Eduardo,
> 
> Since you have already queued this patch for 4.0, I would like to know if I
> should send a v3 to address Eric's review. Or if you can edit the patch
> yourself given the changes are trivial.

I can edit it.  Thanks for the reminder!

-- 
Eduardo