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Re: [PULL 10/38] tests/qtest/migration: Add a test for the analyze-migra
From: |
Alex Bennée |
Subject: |
Re: [PULL 10/38] tests/qtest/migration: Add a test for the analyze-migration script |
Date: |
Tue, 21 May 2024 13:24:57 +0100 |
Juan Quintela <quintela@redhat.com> writes:
> From: Fabiano Rosas <farosas@suse.de>
>
> Add a smoke test that migrates to a file and gives it to the
> script. It should catch the most annoying errors such as changes in
> the ram flags.
>
> After code has been merged it becomes way harder to figure out what is
> causing the script to fail, the person making the change is the most
> likely to know right away what the problem is.
>
> Signed-off-by: Fabiano Rosas <farosas@suse.de>
> Acked-by: Thomas Huth <thuth@redhat.com>
> Reviewed-by: Juan Quintela <quintela@redhat.com>
> Signed-off-by: Juan Quintela <quintela@redhat.com>
> Message-ID: <20231009184326.15777-7-farosas@suse.de>
I bisected the failures I'm seeing on s390x to the introduction of this
script. I don't know if its simply a timeout on a relatively slow VM:
Summary of Failures:
36/546 qemu:qtest+qtest-s390x / qtest-s390x/migration-test
ERROR 93.51s killed by signal 6 SIGABRT
It seems to be unstable as we pass sometimes:
11:26:42 [ajb@qemu01:~/l/q/b/system] master|… + ./pyvenv/bin/meson test
--repeat 100 qtest-s390x/migration-test
ninja: Entering directory `/home/ajb/lsrc/qemu.git/builds/system'
[1/9] Generating qemu-version.h with a custom command (wrapped by meson to
capture output)
1/100 qemu:qtest+qtest-s390x / qtest-s390x/migration-test ERROR
251.98s killed by signal 6 SIGABRT
>>> MALLOC_PERTURB_=9
>>> PYTHON=/home/ajb/lsrc/qemu.git/builds/system/pyvenv/bin/python3
>>> G_TEST_DBUS_DAEMON=/home/ajb/lsrc/qemu.git/tests/dbus-vmstate-daemon.sh
>>> QTEST_QEMU_BINARY=./qemu-system-s390x QTEST_QEMU_IMG=./qemu-img
>>> QTEST_QEMU_STORAGE_DAEMON_BINARY=./storage-daemon/qemu-storage-daemon
>>> /home/ajb/lsrc/qemu.git/builds/system/tests/qtest/migration-test --tap -k
2/100 qemu:qtest+qtest-s390x / qtest-s390x/migration-test ERROR
258.71s killed by signal 6 SIGABRT
>>> PYTHON=/home/ajb/lsrc/qemu.git/builds/system/pyvenv/bin/python3
>>> MALLOC_PERTURB_=205
>>> G_TEST_DBUS_DAEMON=/home/ajb/lsrc/qemu.git/tests/dbus-vmstate-daemon.sh
>>> QTEST_QEMU_BINARY=./qemu-system-s390x QTEST_QEMU_IMG=./qemu-img
>>> QTEST_QEMU_STORAGE_DAEMON_BINARY=./storage-daemon/qemu-storage-daemon
>>> /home/ajb/lsrc/qemu.git/builds/system/tests/qtest/migration-test --tap -k
3/100 qemu:qtest+qtest-s390x / qtest-s390x/migration-test OK
302.53s 46 subtests passed
4/100 qemu:qtest+qtest-s390x / qtest-s390x/migration-test OK
319.56s 46 subtests passed
5/100 qemu:qtest+qtest-s390x / qtest-s390x/migration-test OK
320.11s 46 subtests passed
6/100 qemu:qtest+qtest-s390x / qtest-s390x/migration-test OK
328.40s 46 subtests passed
Ok: 4
Expected Fail: 0
Fail: 2
Unexpected Pass: 0
Skipped: 0
Timeout: 0
> ---
> tests/qtest/migration-test.c | 60 ++++++++++++++++++++++++++++++++++++
> tests/qtest/meson.build | 2 ++
> 2 files changed, 62 insertions(+)
>
> diff --git a/tests/qtest/migration-test.c b/tests/qtest/migration-test.c
> index 8eb2053dbb..cef5081f8c 100644
> --- a/tests/qtest/migration-test.c
> +++ b/tests/qtest/migration-test.c
> @@ -66,6 +66,8 @@ static bool got_dst_resume;
> */
> #define DIRTYLIMIT_TOLERANCE_RANGE 25 /* MB/s */
>
> +#define ANALYZE_SCRIPT "scripts/analyze-migration.py"
> +
> #if defined(__linux__)
> #include <sys/syscall.h>
> #include <sys/vfs.h>
> @@ -1501,6 +1503,61 @@ static void test_baddest(void)
> test_migrate_end(from, to, false);
> }
>
> +#ifndef _WIN32
> +static void test_analyze_script(void)
> +{
> + MigrateStart args = {
> + .opts_source = "-uuid 11111111-1111-1111-1111-111111111111",
> + };
> + QTestState *from, *to;
> + g_autofree char *uri = NULL;
> + g_autofree char *file = NULL;
> + int pid, wstatus;
> + const char *python = g_getenv("PYTHON");
> +
> + if (!python) {
> + g_test_skip("PYTHON variable not set");
> + return;
> + }
> +
> + /* dummy url */
> + if (test_migrate_start(&from, &to, "tcp:127.0.0.1:0", &args)) {
> + return;
> + }
> +
> + /*
> + * Setting these two capabilities causes the "configuration"
> + * vmstate to include subsections for them. The script needs to
> + * parse those subsections properly.
> + */
> + migrate_set_capability(from, "validate-uuid", true);
> + migrate_set_capability(from, "x-ignore-shared", true);
> +
> + file = g_strdup_printf("%s/migfile", tmpfs);
> + uri = g_strdup_printf("exec:cat > %s", file);
> +
> + migrate_ensure_converge(from);
> + migrate_qmp(from, uri, "{}");
> + wait_for_migration_complete(from);
> +
> + pid = fork();
> + if (!pid) {
> + close(1);
> + open("/dev/null", O_WRONLY);
> + execl(python, python, ANALYZE_SCRIPT, "-f", file, NULL);
> + g_assert_not_reached();
> + }
> +
> + g_assert(waitpid(pid, &wstatus, 0) == pid);
> + if (WIFEXITED(wstatus) && WEXITSTATUS(wstatus) != 0) {
> + g_test_message("Failed to analyze the migration stream");
> + g_test_fail();
> + }
> + test_migrate_end(from, to, false);
> + cleanup("migfile");
> +}
> +#endif
> +
> static void test_precopy_common(MigrateCommon *args)
> {
> QTestState *from, *to;
> @@ -2837,6 +2894,9 @@ int main(int argc, char **argv)
> }
>
> qtest_add_func("/migration/bad_dest", test_baddest);
> +#ifndef _WIN32
> + qtest_add_func("/migration/analyze-script", test_analyze_script);
> +#endif
> qtest_add_func("/migration/precopy/unix/plain", test_precopy_unix_plain);
> qtest_add_func("/migration/precopy/unix/xbzrle",
> test_precopy_unix_xbzrle);
> /*
> diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build
> index 66795cfcd2..d6022ebd64 100644
> --- a/tests/qtest/meson.build
> +++ b/tests/qtest/meson.build
> @@ -357,6 +357,8 @@ foreach dir : target_dirs
> test_deps += [qsd]
> endif
>
> + qtest_env.set('PYTHON', python.full_path())
> +
> foreach test : target_qtests
> # Executables are shared across targets, declare them only the first
> time we
> # encounter them
--
Alex Bennée
Virtualisation Tech Lead @ Linaro
- Re: [PULL 10/38] tests/qtest/migration: Add a test for the analyze-migration script,
Alex Bennée <=