From patchwork Mon Apr 16 12:38:22 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Reitz X-Patchwork-Id: 898621 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=2001:4830:134:3::11; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 40Pp0K0NJbz9ryr for ; Mon, 16 Apr 2018 22:41:21 +1000 (AEST) Received: from localhost ([::1]:43565 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f83Rf-0001rb-6b for incoming@patchwork.ozlabs.org; Mon, 16 Apr 2018 08:41:19 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49359) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f83P9-0000DN-9J for qemu-devel@nongnu.org; Mon, 16 Apr 2018 08:38:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f83P5-0008Jl-7O for qemu-devel@nongnu.org; Mon, 16 Apr 2018 08:38:43 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:52848 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1f83P0-0008Gj-Aw; Mon, 16 Apr 2018 08:38:34 -0400 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.rdu2.redhat.com [10.11.54.4]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id DA89741662E0; Mon, 16 Apr 2018 12:38:33 +0000 (UTC) Received: from localhost (unknown [10.40.205.23]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 864562026DFD; Mon, 16 Apr 2018 12:38:33 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Date: Mon, 16 Apr 2018 14:38:22 +0200 Message-Id: <20180416123822.11744-3-mreitz@redhat.com> In-Reply-To: <20180416123822.11744-1-mreitz@redhat.com> References: <20180416123822.11744-1-mreitz@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.4 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Mon, 16 Apr 2018 12:38:33 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.7]); Mon, 16 Apr 2018 12:38:33 +0000 (UTC) for IP:'10.11.54.4' DOMAIN:'int-mx04.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'mreitz@redhat.com' RCPT:'' X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 66.187.233.73 Subject: [Qemu-devel] [PULL 2/2] iotests: fix 169 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Peter Maydell , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Vladimir Sementsov-Ogievskiy Improve and fix 169: - use MIGRATION events instead of RESUME - make a TODO: enable dirty-bitmaps capability for offline case - recreate vm_b without -incoming near test end This (likely) fixes racy faults at least of the following types: - timeout on waiting for RESUME event - sha256 mismatch on line 136 (142 after this patch) - fail to self.vm_b.launch() on line 135 (141 now after this patch) And surely fixes cat processes, left after test finish. Signed-off-by: Vladimir Sementsov-Ogievskiy Message-id: 20180411122606.367301-3-vsementsov@virtuozzo.com Reviewed-by: Max Reitz Signed-off-by: Max Reitz --- tests/qemu-iotests/169 | 48 +++++++++++++++++++++++++++--------------------- 1 file changed, 27 insertions(+), 21 deletions(-) diff --git a/tests/qemu-iotests/169 b/tests/qemu-iotests/169 index 153b10b6e7..f243db9955 100755 --- a/tests/qemu-iotests/169 +++ b/tests/qemu-iotests/169 @@ -31,6 +31,8 @@ disk_a = os.path.join(iotests.test_dir, 'disk_a') disk_b = os.path.join(iotests.test_dir, 'disk_b') size = '1M' mig_file = os.path.join(iotests.test_dir, 'mig_file') +mig_cmd = 'exec: cat > ' + mig_file +incoming_cmd = 'exec: cat ' + mig_file class TestDirtyBitmapMigration(iotests.QMPTestCase): @@ -49,7 +51,6 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase): self.vm_a.launch() self.vm_b = iotests.VM(path_suffix='b') - self.vm_b.add_incoming("exec: cat '" + mig_file + "'") def add_bitmap(self, vm, granularity, persistent): params = {'node': 'drive0', @@ -86,36 +87,30 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase): (0xa0201, 0x1000)) should_migrate = migrate_bitmaps or persistent and shared_storage + mig_caps = [{'capability': 'events', 'state': True}] + if migrate_bitmaps: + mig_caps.append({'capability': 'dirty-bitmaps', 'state': True}) + result = self.vm_a.qmp('migrate-set-capabilities', + capabilities=mig_caps) + self.assert_qmp(result, 'return', {}) + + self.vm_b.add_incoming(incoming_cmd if online else "defer") self.vm_b.add_drive(disk_a if shared_storage else disk_b) if online: os.mkfifo(mig_file) self.vm_b.launch() + result = self.vm_b.qmp('migrate-set-capabilities', + capabilities=mig_caps) + self.assert_qmp(result, 'return', {}) self.add_bitmap(self.vm_a, granularity, persistent) for r in regions: self.vm_a.hmp_qemu_io('drive0', 'write %d %d' % r) sha256 = self.get_bitmap_hash(self.vm_a) - if migrate_bitmaps: - capabilities = [{'capability': 'dirty-bitmaps', 'state': True}] - - result = self.vm_a.qmp('migrate-set-capabilities', - capabilities=capabilities) - self.assert_qmp(result, 'return', {}) - - if online: - result = self.vm_b.qmp('migrate-set-capabilities', - capabilities=capabilities) - self.assert_qmp(result, 'return', {}) - - result = self.vm_a.qmp('migrate-set-capabilities', - capabilities=[{'capability': 'events', - 'state': True}]) - self.assert_qmp(result, 'return', {}) - - result = self.vm_a.qmp('migrate', uri='exec:cat>' + mig_file) + result = self.vm_a.qmp('migrate', uri=mig_cmd) while True: event = self.vm_a.event_wait('MIGRATION') if event['data']['status'] == 'completed': @@ -124,14 +119,25 @@ class TestDirtyBitmapMigration(iotests.QMPTestCase): if not online: self.vm_a.shutdown() self.vm_b.launch() - # TODO enable bitmap capability for vm_b in this case + result = self.vm_b.qmp('migrate-set-capabilities', + capabilities=mig_caps) + self.assert_qmp(result, 'return', {}) + result = self.vm_b.qmp('migrate-incoming', uri=incoming_cmd) + self.assert_qmp(result, 'return', {}) - self.vm_b.event_wait("RESUME", timeout=10.0) + while True: + event = self.vm_b.event_wait('MIGRATION') + if event['data']['status'] == 'completed': + break self.check_bitmap(self.vm_b, sha256 if should_migrate else False) if should_migrate: self.vm_b.shutdown() + # recreate vm_b, as we don't want -incoming option (this will lead + # to "cat" process left alive after test finish) + self.vm_b = iotests.VM(path_suffix='b') + self.vm_b.add_drive(disk_a if shared_storage else disk_b) self.vm_b.launch() self.check_bitmap(self.vm_b, sha256 if persistent else False)