From patchwork Fri Oct 11 12:18:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Reitz X-Patchwork-Id: 11185343 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9B147112B for ; Fri, 11 Oct 2019 12:19:49 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7B6312084C for ; Fri, 11 Oct 2019 12:19:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7B6312084C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:49494 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIttc-0002G5-Fu for patchwork-qemu-devel@patchwork.kernel.org; Fri, 11 Oct 2019 08:19:48 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:52068) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iIts8-0000rc-7P for qemu-devel@nongnu.org; Fri, 11 Oct 2019 08:18:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iIts7-0001DL-2a for qemu-devel@nongnu.org; Fri, 11 Oct 2019 08:18:16 -0400 Received: from mx1.redhat.com ([209.132.183.28]:51746) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iIts4-0001BZ-F2; Fri, 11 Oct 2019 08:18:12 -0400 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.phx2.redhat.com [10.5.11.22]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BD0EE81DF7; Fri, 11 Oct 2019 12:18:10 +0000 (UTC) Received: from localhost (ovpn-116-40.ams2.redhat.com [10.36.116.40]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 35A5110016EB; Fri, 11 Oct 2019 12:18:10 +0000 (UTC) From: Max Reitz To: qemu-block@nongnu.org Subject: [PATCH v2] iotests/028: Fix for long $TEST_DIRs Date: Fri, 11 Oct 2019 14:18:08 +0200 Message-Id: <20191011121808.3243-1-mreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Fri, 11 Oct 2019 12:18:10 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 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: Kevin Wolf , Thomas Huth , qemu-devel@nongnu.org, Max Reitz Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" For long test image paths, the order of the "Formatting" line and the "(qemu)" prompt after a drive_backup HMP command may be reversed. In fact, the interaction between the prompt and the line may lead to the "Formatting" to being greppable at all after "read"-ing it (if the prompt injects an IFS character into the "Formatting" string). So just wait until we get a prompt. At that point, the block job must have been started, so "info block-jobs" will only return "No active jobs" once it is done. Reported-by: Thomas Huth Signed-off-by: Max Reitz Tested-by: Thomas Huth Reviewed-by: John Snow --- v2: - Fix another kind of race... --- tests/qemu-iotests/028 | 11 ++++++++--- tests/qemu-iotests/028.out | 1 - 2 files changed, 8 insertions(+), 4 deletions(-) diff --git a/tests/qemu-iotests/028 b/tests/qemu-iotests/028 index 71301ec6e5..bba1ee59ae 100755 --- a/tests/qemu-iotests/028 +++ b/tests/qemu-iotests/028 @@ -119,9 +119,14 @@ fi # Silence output since it contains the disk image path and QEMU's readline # character echoing makes it very hard to filter the output. Plus, there # is no telling how many times the command will repeat before succeeding. -_send_qemu_cmd $h "drive_backup disk ${TEST_IMG}.copy" "(qemu)" >/dev/null -_send_qemu_cmd $h "" "Formatting" | _filter_img_create -qemu_cmd_repeat=20 _send_qemu_cmd $h "info block-jobs" "No active jobs" >/dev/null +# (Note that creating the image results in a "Formatting..." message over +# stdout, which is the same channel the monitor uses. We cannot reliably +# wait for it because the monitor output may interact with it in such a +# way that _timed_wait_for cannot read it. However, once the block job is +# done, we know that the "Formatting..." message must have appeared +# already, so the output is still deterministic.) +silent=y _send_qemu_cmd $h "drive_backup disk ${TEST_IMG}.copy" "(qemu)" +silent=y qemu_cmd_repeat=20 _send_qemu_cmd $h "info block-jobs" "No active jobs" _send_qemu_cmd $h "info block-jobs" "No active jobs" _send_qemu_cmd $h 'quit' "" diff --git a/tests/qemu-iotests/028.out b/tests/qemu-iotests/028.out index 7d54aeb003..37aed84436 100644 --- a/tests/qemu-iotests/028.out +++ b/tests/qemu-iotests/028.out @@ -468,7 +468,6 @@ No errors were found on the image. block-backup -Formatting 'TEST_DIR/t.IMGFMT.copy', fmt=IMGFMT size=4294968832 backing_file=TEST_DIR/t.IMGFMT.base backing_fmt=IMGFMT (qemu) info block-jobs No active jobs === IO: pattern 195