From patchwork Fri Apr 2 09:35:36 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 1461616 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FBZg92dfvz9sRK for ; Fri, 2 Apr 2021 20:36:05 +1100 (AEDT) Received: from localhost ([::1]:53366 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lSGDj-0008HS-DC for incoming@patchwork.ozlabs.org; Fri, 02 Apr 2021 05:36:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55172) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDN-0008H5-G7 for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:41 -0400 Received: from mail.ispras.ru ([83.149.199.84]:42760) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDL-0002Yg-9x for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:41 -0400 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id A3AE54076272; Fri, 2 Apr 2021 09:35:36 +0000 (UTC) Subject: [PATCH 1/4] tests/acceptance: add replay kernel test for s390 From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Fri, 02 Apr 2021 12:35:36 +0300 Message-ID: <161735613639.1593935.13854394027896840369.stgit@pasha-ThinkPad-X280> In-Reply-To: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> References: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pavel.dovgalyuk@ispras.ru, philmd@redhat.com, wrampazz@redhat.com, crosa@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch adds record/replay test which boots Linux kernel on s390x platform. The test uses kernel binaries taken from boot_linux_console test. Signed-off-by: Pavel Dovgalyuk --- tests/acceptance/replay_kernel.py | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/tests/acceptance/replay_kernel.py b/tests/acceptance/replay_kernel.py index 71facdaa75..cdc22cb6d3 100644 --- a/tests/acceptance/replay_kernel.py +++ b/tests/acceptance/replay_kernel.py @@ -208,6 +208,22 @@ def test_arm_cubieboard_initrd(self): '-initrd', initrd_path, '-no-reboot')) + def test_s390x_s390_ccw_virtio(self): + """ + :avocado: tags=arch:s390x + :avocado: tags=machine:s390-ccw-virtio + """ + kernel_url = ('https://archives.fedoraproject.org/pub/archive' + '/fedora-secondary/releases/29/Everything/s390x/os/images' + '/kernel.img') + kernel_hash = 'e8e8439103ef8053418ef062644ffd46a7919313' + kernel_path = self.fetch_asset(kernel_url, asset_hash=kernel_hash) + + kernel_command_line = self.KERNEL_COMMON_COMMAND_LINE + 'console=sclp0' + console_pattern = 'Kernel command line: %s' % kernel_command_line + self.run_rr(kernel_path, kernel_command_line, console_pattern, shift=9, + args=('-nodefaults', '-smp', '1')) + def test_ppc64_pseries(self): """ :avocado: tags=arch:ppc64 From patchwork Fri Apr 2 09:35:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 1461617 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FBZgc6RBmz9sRK for ; Fri, 2 Apr 2021 20:36:28 +1100 (AEDT) Received: from localhost ([::1]:53614 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lSGE6-0008OF-Tf for incoming@patchwork.ozlabs.org; Fri, 02 Apr 2021 05:36:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55206) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDT-0008MV-JS for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:47 -0400 Received: from mail.ispras.ru ([83.149.199.84]:42772) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDQ-0002b1-OT for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:47 -0400 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id 2CC6140D3BFF; Fri, 2 Apr 2021 09:35:42 +0000 (UTC) Subject: [PATCH 2/4] tests/acceptance: add replay kernel test for ppc64 From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Fri, 02 Apr 2021 12:35:41 +0300 Message-ID: <161735614192.1593935.18389180090912195825.stgit@pasha-ThinkPad-X280> In-Reply-To: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> References: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pavel.dovgalyuk@ispras.ru, philmd@redhat.com, wrampazz@redhat.com, crosa@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch adds record/replay test which boots Linux kernel on ppc64 platform. The test uses kernel binaries taken from boot_linux_console test. Signed-off-by: Pavel Dovgalyuk --- tests/acceptance/boot_linux_console.py | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/tests/acceptance/boot_linux_console.py b/tests/acceptance/boot_linux_console.py index 1ca32ecf25..22a434ebd9 100644 --- a/tests/acceptance/boot_linux_console.py +++ b/tests/acceptance/boot_linux_console.py @@ -1018,6 +1018,18 @@ def test_m68k_mcf5208evb(self): tar_hash = 'ac688fd00561a2b6ce1359f9ff6aa2b98c9a570c' self.do_test_advcal_2018('07', tar_hash, 'sanity-clause.elf') + def test_ppc64_e500(self): + """ + :avocado: tags=arch:ppc64 + :avocado: tags=machine:ppce500 + :avocado: tags=cpu:e5500 + """ + tar_hash = '6951d86d644b302898da2fd701739c9406527fe1' + tar_url = ('https://www.qemu-advent-calendar.org' + '/2018/download/day19.tar.xz') + file_path = self.fetch_asset(tar_url, asset_hash=tar_hash) + self.do_test_advcal_2018(file_path, 'uImage', ('-cpu', 'e5500')) + def test_or1k_sim(self): """ :avocado: tags=arch:or1k From patchwork Fri Apr 2 09:35:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 1461618 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FBZgx066sz9sSC for ; Fri, 2 Apr 2021 20:36:45 +1100 (AEDT) Received: from localhost ([::1]:53788 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lSGEN-0008T4-02 for incoming@patchwork.ozlabs.org; Fri, 02 Apr 2021 05:36:43 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55222) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDY-0008Og-6D for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:52 -0400 Received: from mail.ispras.ru ([83.149.199.84]:42800) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDW-0002er-Gs for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:51 -0400 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id B1C9840D3BFF; Fri, 2 Apr 2021 09:35:47 +0000 (UTC) Subject: [PATCH 3/4] tests/acceptance: add replay kernel test for openrisc From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Fri, 02 Apr 2021 12:35:47 +0300 Message-ID: <161735614743.1593935.5583218345759342239.stgit@pasha-ThinkPad-X280> In-Reply-To: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> References: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pavel.dovgalyuk@ispras.ru, philmd@redhat.com, wrampazz@redhat.com, crosa@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch adds record/replay test which boots Linux kernel on openrisc platform. The test uses kernel binaries taken from boot_linux_console test. Signed-off-by: Pavel Dovgalyuk --- tests/acceptance/replay_kernel.py | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/tests/acceptance/replay_kernel.py b/tests/acceptance/replay_kernel.py index cdc22cb6d3..c1e80ab5ad 100644 --- a/tests/acceptance/replay_kernel.py +++ b/tests/acceptance/replay_kernel.py @@ -319,6 +319,17 @@ def test_ppc64_e500(self): file_path = self.fetch_asset(tar_url, asset_hash=tar_hash) self.do_test_advcal_2018(file_path, 'uImage', ('-cpu', 'e5500')) + def test_or1k_sim(self): + """ + :avocado: tags=arch:or1k + :avocado: tags=machine:or1k-sim + """ + tar_hash = '20334cdaf386108c530ff0badaecc955693027dd' + tar_url = ('https://www.qemu-advent-calendar.org' + '/2018/download/day20.tar.xz') + file_path = self.fetch_asset(tar_url, asset_hash=tar_hash) + self.do_test_advcal_2018(file_path, 'vmlinux') + def test_ppc_g3beige(self): """ :avocado: tags=arch:ppc From patchwork Fri Apr 2 09:35:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pavel Dovgalyuk X-Patchwork-Id: 1461620 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FBZls0HVMz9sRK for ; Fri, 2 Apr 2021 20:40:09 +1100 (AEDT) Received: from localhost ([::1]:34298 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lSGHe-0003bv-Rx for incoming@patchwork.ozlabs.org; Fri, 02 Apr 2021 05:40:06 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:55260) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDd-00008U-Nd for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:57 -0400 Received: from mail.ispras.ru ([83.149.199.84]:42816) by eggs.gnu.org with esmtps (TLS1.2:DHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lSGDa-0002hF-U6 for qemu-devel@nongnu.org; Fri, 02 Apr 2021 05:35:57 -0400 Received: from [127.0.1.1] (unknown [62.118.151.149]) by mail.ispras.ru (Postfix) with ESMTPSA id 531E540D3BFF; Fri, 2 Apr 2021 09:35:53 +0000 (UTC) Subject: [PATCH 4/4] tests/acceptance: Linux boot test for record/replay From: Pavel Dovgalyuk To: qemu-devel@nongnu.org Date: Fri, 02 Apr 2021 12:35:53 +0300 Message-ID: <161735615301.1593935.3896799302321048496.stgit@pasha-ThinkPad-X280> In-Reply-To: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> References: <161735613083.1593935.15369171718807768142.stgit@pasha-ThinkPad-X280> User-Agent: StGit/0.23 MIME-Version: 1.0 Received-SPF: pass client-ip=83.149.199.84; envelope-from=pavel.dovgalyuk@ispras.ru; helo=mail.ispras.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pavel.dovgalyuk@ispras.ru, philmd@redhat.com, wrampazz@redhat.com, crosa@redhat.com, pbonzini@redhat.com, alex.bennee@linaro.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Pavel Dovgalyuk This patch adds a test for record/replay, which boots Linux image from the disk and interacts with the network. The idea and code of this test is borrowed from boot_linux.py This test includes only x86_64 platform. Other platforms and machines will be added later after testing and improving record/replay to completely support them. Each test consists of the following phases: - downloading the disk image - recording the execution - replaying the execution Replay does not validates the output, but waits until QEMU finishes the execution. This is reasonable, because QEMU usually hangs when replay goes wrong. Signed-off-by: Pavel Dovgalyuk --- MAINTAINERS | 1 tests/acceptance/replay_linux.py | 116 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 117 insertions(+) create mode 100644 tests/acceptance/replay_linux.py diff --git a/MAINTAINERS b/MAINTAINERS index aa894767dc..17c152a5e1 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2856,6 +2856,7 @@ F: include/sysemu/replay.h F: docs/replay.txt F: stubs/replay.c F: tests/acceptance/replay_kernel.py +F: tests/acceptance/replay_linux.py F: tests/acceptance/reverse_debugging.py F: qapi/replay.json diff --git a/tests/acceptance/replay_linux.py b/tests/acceptance/replay_linux.py new file mode 100644 index 0000000000..15953f9e49 --- /dev/null +++ b/tests/acceptance/replay_linux.py @@ -0,0 +1,116 @@ +# Record/replay test that boots a complete Linux system via a cloud image +# +# Copyright (c) 2020 ISP RAS +# +# Author: +# Pavel Dovgalyuk +# +# 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 os +import logging +import time + +from avocado import skipUnless +from avocado.utils import cloudinit +from avocado.utils import network +from avocado.utils import vmimage +from avocado.utils import datadrainer +from avocado.utils.path import find_command +from avocado_qemu import LinuxTest + +class ReplayLinux(LinuxTest): + """ + Boots a Linux system, checking for a successful initialization + """ + + timeout = 1800 + chksum = None + hdd = 'ide-hd' + cd = 'ide-cd' + bus = 'ide' + + def setUp(self): + super(ReplayLinux, self).setUp() + self.boot_path = self.download_boot() + self.cloudinit_path = self.prepare_cloudinit() + + def vm_add_disk(self, vm, path, id, device): + bus_string = '' + if self.bus: + bus_string = ',bus=%s.%d' % (self.bus, id,) + vm.add_args('-drive', 'file=%s,snapshot,id=disk%s,if=none' % (path, id)) + vm.add_args('-drive', + 'driver=blkreplay,id=disk%s-rr,if=none,image=disk%s' % (id, id)) + vm.add_args('-device', + '%s,drive=disk%s-rr%s' % (device, id, bus_string)) + + def launch_and_wait(self, record, args, shift): + vm = self.get_vm() + vm.add_args('-smp', '1') + vm.add_args('-m', '1024') + vm.add_args('-object', 'filter-replay,id=replay,netdev=hub0port0') + if args: + vm.add_args(*args) + self.vm_add_disk(vm, self.boot_path, 0, self.hdd) + self.vm_add_disk(vm, self.cloudinit_path, 1, self.cd) + logger = logging.getLogger('replay') + if record: + logger.info('recording the execution...') + mode = 'record' + else: + logger.info('replaying the execution...') + mode = 'replay' + replay_path = os.path.join(self.workdir, 'replay.bin') + vm.add_args('-icount', 'shift=%s,rr=%s,rrfile=%s' % + (shift, mode, replay_path)) + + start_time = time.time() + + vm.set_console() + vm.launch() + console_drainer = datadrainer.LineLogger(vm.console_socket.fileno(), + logger=self.log.getChild('console'), + stop_check=(lambda : not vm.is_running())) + console_drainer.start() + if record: + cloudinit.wait_for_phone_home(('0.0.0.0', self.phone_home_port), + self.name) + vm.shutdown() + logger.info('finished the recording with log size %s bytes' + % os.path.getsize(replay_path)) + else: + vm.event_wait('SHUTDOWN', self.timeout) + vm.shutdown(True) + logger.info('successfully fihished the replay') + elapsed = time.time() - start_time + logger.info('elapsed time %.2f sec' % elapsed) + return elapsed + + def run_rr(self, args=None, shift=7): + t1 = self.launch_and_wait(True, args, shift) + t2 = self.launch_and_wait(False, args, shift) + logger = logging.getLogger('replay') + logger.info('replay overhead {:.2%}'.format(t2 / t1 - 1)) + +@skipUnless(os.getenv('AVOCADO_TIMEOUT_EXPECTED'), 'Test might timeout') +class ReplayLinuxX8664(ReplayLinux): + """ + :avocado: tags=arch:x86_64 + :avocado: tags=accel:tcg + """ + + chksum = 'e3c1b309d9203604922d6e255c2c5d098a309c2d46215d8fc026954f3c5c27a0' + + def test_pc_i440fx(self): + """ + :avocado: tags=machine:pc + """ + self.run_rr(shift=1) + + def test_pc_q35(self): + """ + :avocado: tags=machine:q35 + """ + self.run_rr(shift=3)