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2022-03-02tests: Pass in MigrateStart** into test_migrate_start()Peter Xu
test_migrate_start() will release the MigrateStart structure that passed in, however that's not super clear to the caller because after the call returned the pointer can still be referenced by the callers. It can easily be a source of use-after-free. Let's pass in a double pointer of that, then we can safely clear the pointer for the caller after the struct is released. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20220301083925.33483-26-peterx@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> dgilbert: Fixup apply since I didn't take 24/25
2021-10-20tests: migration-test: use qtest_has_accel() APIIgor Mammedov
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Suggested-by: Thomas Huth <thuth@redhat.com> Message-Id: <20210902113551.461632-15-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-29tests: Fix migration-test build failure for sparcPeter Xu
Even if <linux/kvm.h> seems to exist for all archs on linux, however including it with __linux__ defined seems to be not working yet as it'll try to include asm/kvm.h and that can be missing for archs that do not support kvm. To fix this (instead of any attempt to fix linux headers..), we can mark the header to be x86_64 only, because it's so far only service for adding the kvm dirty ring test. Fixes: 1f546b709d6 ("tests: migration-test: Add dirty ring test") Reported-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20210728214128.206198-1-peterx@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-07-26tests/qtest/migration-test.c: use 127.0.0.1 instead of 0Dr. David Alan Gilbert
OpenBSD doesn't like :0 as an address, switch to using 127.0.0.1 in baddest; it's really testing the :0 port number that isn't allowed on anything. (The test doesn't currently run anyway because of the userfault problem that Peter noticed, but this gets us closer to being able to reenable it) Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20210719185217.122105-1-dgilbert@redhat.com> Acked-by: Peter Xu <peterx@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-07-05tests: migration-test: Add dirty ring testPeter Xu
Add dirty ring test if kernel supports it. Add the dirty ring parameter on source should be mostly enough, but let's change the dest too to make them match always. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20210615175523.439830-3-peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-05-13tests/qtest/migration-test: Use g_autofree to avoid leaks on error pathsPeter Maydell
Coverity notices that several places in the migration-test code fail to free memory in error-exit paths. This is pretty unimportant in test case code, but we can avoid having to manually free the memory entirely by using g_autofree. The places where Coverity spotted a leak were relating to early exits not freeing 'uri' in test_precopy_unix(), do_test_validate_uuid(), migrate_postcopy_prepare() and test_migrate_auto_converge(). This patch converts all the string-allocation in the test code to g_autofree for consistency. Fixes: Coverity CID 1432313, 1432315, 1432352, 1432364 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20210506185819.9010-1-peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-05-13tests/migration-test: Fix "true" vs trueDr. David Alan Gilbert
Accidental use of "true" as a boolean; spotted by coverity and Peter. Fixes: b99784ef6c3 Fixes: d795f47466e Reported-by: Peter Maydell <peter.maydell@linaro.org> Reported-by: Coverity (CID 1432373, 1432292, 1432288) Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20210504100545.112213-1-dgilbert@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-03-18migrate: remove QMP/HMP commands for speed, downtime and cache sizeDaniel P. Berrangé
The generic 'migrate_set_parameters' command handle all types of param. Only the QMP commands were documented in the deprecations page, but the rationale for deprecating applies equally to HMP, and the replacements exist. Furthermore the HMP commands are just shims to the QMP commands, so removing the latter breaks the former unless they get re-implemented. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-10-26migration-test: Only hide error if !QTEST_LOGPeter Xu
The errors are very useful when debugging qtest failures, especially when QTEST_LOG=1 is set. Let's allow override MigrateStart.hide_stderr when QTEST_LOG=1 is specified, because that means the user wants to be verbose. Not very nice to introduce the first QTEST_LOG env access in migration-test.c, however it should be handy. Without this patch, I was hacking error_report() when debugging such errors. Let's make things easier. Signed-off-by: Peter Xu <peterx@redhat.com> Message-Id: <20201021212721.440373-7-peterx@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-10-13tests/migration: Allow longer timeoutsDr. David Alan Gilbert
In travis, with gcov and gprof we're seeing timeouts; hopefully fix this by increasing the test timeouts a bit, but for xbzrle ensure it really does get a couple of cycles through to test the cache. I think the problem in travis is we have about 2 host CPU threads, in the test we have at least 3: a) The vCPU thread (100% flat out) b) The source migration thread c) The destination migration thread if (b) & (c) are slow for any reason - gcov+gperf or a slow host - then they're sharing one host CPU thread so limit the migration bandwidth. Tested on my laptop with: taskset -c 0,1 ./tests/qtest/migration-test -p /x86_64/migration Reported-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20201008160330.130431-1-dgilbert@redhat.com> [thuth: Move the #define to the right location] Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-08-21meson: convert tests/qtest to mesonPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-07-02Revert "tests/migration: Reduce autoconverge initial bandwidth"Michael S. Tsirkin
This reverts commit 6d1da867e65f ("tests/migration: Reduce autoconverge initial bandwidth") since that change makes unit tests much slower for all developers, while it's not a robust way to fix migration tests. Migration tests need to find a more robust way to discover a reasonable bandwidth without slowing things down for everyone. Fixes: 6d1da867e65f ("tests/migration: Reduce autoconverge initial bandwidth") Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Thomas Huth <thuth@redhat.com>
2020-05-27tests/migration: Tighten error checkingMarkus Armbruster
migrate_get_socket_address() neglects to check visit_type_SocketAddressList() failure. This smells like a leak, but it actually will crash dereferencing @addrs. Pass &error_abort to remove the code smell. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20200505101908.6207-5-armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-03-25tests/migration: Reduce autoconverge initial bandwidthPhilippe Mathieu-Daudé
When using max-bandwidth=~100Mb/s, this test fails on Travis-CI s390x when configured with --disable-tcg: $ make check-qtest TEST check-qtest-s390x: tests/qtest/boot-serial-test qemu-system-s390x: -accel tcg: invalid accelerator tcg qemu-system-s390x: falling back to KVM TEST check-qtest-s390x: tests/qtest/pxe-test TEST check-qtest-s390x: tests/qtest/test-netfilter TEST check-qtest-s390x: tests/qtest/test-filter-mirror TEST check-qtest-s390x: tests/qtest/test-filter-redirector TEST check-qtest-s390x: tests/qtest/drive_del-test TEST check-qtest-s390x: tests/qtest/device-plug-test TEST check-qtest-s390x: tests/qtest/virtio-ccw-test TEST check-qtest-s390x: tests/qtest/cpu-plug-test TEST check-qtest-s390x: tests/qtest/migration-test ** ERROR:tests/qtest/migration-test.c:1229:test_migrate_auto_converge: 'got_stop' should be FALSE ERROR - Bail out! ERROR:tests/qtest/migration-test.c:1229:test_migrate_auto_converge: 'got_stop' should be FALSE make: *** [tests/Makefile.include:633: check-qtest-s390x] Error 1 Per David Gilbert, "it could just be the writing is slow on s390 and the migration thread fast; in which case the autocomplete wouldn't be needed. Perhaps we just need to reduce the bandwidth limit." Tuning the threshold by reducing the initial bandwidth makes the autoconverge test pass. Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200323184015.11565-1-philmd@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Tested-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-28multifd: Add zstd compression multifd supportJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-28multifd: Add zlib compression multifd supportJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-02-28multifd: Add multifd-compression parameterJuan Quintela
This will store the compression method to use. We start with none. Signed-off-by: Juan Quintela <quintela@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> --- Rename multifd-method to multifd-compression
2020-02-13migration-test: fix some memleaks in migration-testPan Nengyuan
spotted by asan, 'check-qtest-aarch64' runs fail if sanitizers is enabled. Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: Pan Nengyuan <pannengyuan@huawei.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-02-13tests/migration: Add some slack to auto convergeDr. David Alan Gilbert
There's an assert in autoconverge that checks that we quit the iteration when we go below the expected threshold. Philippe saw a case where this assert fired with the measured value slightly over the threshold. (about 3k out of a few million). I can think of two reasons: a) Rounding errors b) That after we make the decision to quit iteration we do one more sync and that sees a few more dirty pages. So add 1% slack to the assertion, that should cover a and most cases of b, probably all we'll see for the test. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-29migration-test: Make sure that multifd and cancel worksJuan Quintela
Test that this sequence works: - launch source - launch target - start migration - cancel migration - relaunch target - do migration again Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-01-29migration-test: Use g_free() instead of free()Juan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2020-01-20migration-test: introduce functions to handle string parametersJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-20migration-test: Add migration multifd testJuan Quintela
We set multifd-channels. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Tested-by: Wei Yang <richardw.yang@linux.intel.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2020-01-16migration-test: ppc64: fix FORTH test programLaurent Vivier
Commit e51e711b1bef has moved the initialization of start_address and end_address after the definition of the command line argument, where the nvramrc is initialized, and thus the loop is between 0 and 0 rather than 1 MiB and 100 MiB. It doesn't affect the result of the test if all the tests are run in sequence because the two first tests don't run the loop, so the values are correctly initialized when we actually need them. But it hangs when we ask to run only one test, for instance: QTEST_QEMU_BINARY=ppc64-softmmu/qemu-system-ppc64 \ tests/migration-test -m=quick -p /ppc64/migration/validate_uuid_error Fixes: e51e711b1bef ("tests/migration: Add migration-test header file") Cc: wei@redhat.com Signed-off-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20200107163437.52139-1-lvivier@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Acked-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-01-12test: Move qtests to a separate directoryThomas Huth
The tests directory itself is pretty overcrowded, and it's hard to see which test belongs to which test subsystem (unit, qtest, ...). Let's move the qtests to a separate folder for more clarity. Message-Id: <20191218103059.11729-6-thuth@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
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