Re: [PATCH] tests/qtest/migration-test: Disable migration/multifd/tcp/plain/cancel

[Peter Maydell]

On Thu, 2 Mar 2023 at 17:22, Peter Maydell <peter.maydell@linaro.org> wrote:
>
> migration-test has been flaky for a long time, both in CI and
> otherwise:
>


> In the cases where I've looked at the underlying log, this seems to
> be in the migration/multifd/tcp/plain/cancel subtest.  Disable that
> specific subtest by default until somebody can track down the
> underlying cause. Enthusiasts can opt back in by setting
> QEMU_TEST_FLAKY_TESTS=1 in their environment.

So I'm going to apply this, because hopefully it will improve
the reliability a bit, but it's clearly not all of the
issues with migration-test, because in the course of the
run I was doing to test it before applying it I got this
error from the OpenBSD VM:

 32/646 qemu:qtest+qtest-aarch64 / qtest-aarch64/migration-test
           ERROR          134.73s   killed by signal 6 SIGABRT
――――――――――――――――――――――――――――――――――――― ✀  ―――――――――――――――――――――――――――――――――――――
stderr:
qemu-system-aarch64: multifd_send_sync_main: channel 15 has already quit
qemu-system-aarch64: failed to save SaveStateEntry with id(name): 2(ram): -1
qemu-system-aarch64: Failed to connect to '127.0.0.1:19581': Address
already in use
query-migrate shows failed migration: Failed to connect to
'127.0.0.1:19581': Address already in use
**
ERROR:../src/tests/qtest/migration-helpers.c:151:migrate_query_not_failed:
assertion failed: (!g_str_equal(status, "failed"))

(test program exited with status code -6)

thanks
-- PMM