From patchwork Thu Aug 24 15:53:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hanna Czenczek X-Patchwork-Id: 13364395 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id E84E0C27C40 for ; Thu, 24 Aug 2023 15:54:18 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qZCep-0000lb-Jq; Thu, 24 Aug 2023 11:54:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qZCen-0000ij-Fz for qemu-devel@nongnu.org; Thu, 24 Aug 2023 11:54:01 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qZCek-0007lT-VF for qemu-devel@nongnu.org; Thu, 24 Aug 2023 11:54:01 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1692892438; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=UyzJiT6RO5iFaFGbDwX36ckIuPAI5eTspml7T3pjtjw=; b=cx8YU5jjaXCI8Nu9EWvmpg4CGBJANhYr516DcZz5kO4OchI5V76GcpmCtfu017AO5iCV2C RNglp807sFHjZa07vp1VKLq8MQ0UBq3v0lMQ4H1Pv+F02sOB8WG2W+XeJuTizsdHEF8Vvd I4Mbf3vkpfuFol5zBsW8WK0AbJEwfnw= Received: from mimecast-mx02.redhat.com (66.187.233.73 [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-607-PP7tA6_gOwaGbtGpaG3WHA-1; Thu, 24 Aug 2023 11:53:54 -0400 X-MC-Unique: PP7tA6_gOwaGbtGpaG3WHA-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 87B2E3810D46; Thu, 24 Aug 2023 15:53:54 +0000 (UTC) Received: from localhost (unknown [10.39.193.160]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 427EB1121314; Thu, 24 Aug 2023 15:53:54 +0000 (UTC) From: Hanna Czenczek To: qemu-block@nongnu.org Cc: qemu-devel@nongnu.org, Hanna Czenczek , Kevin Wolf , Stefan Hajnoczi , Sam Li Subject: [PATCH 5/5] tests/file-io-error: New test Date: Thu, 24 Aug 2023 17:53:44 +0200 Message-ID: <20230824155345.109765-6-hreitz@redhat.com> In-Reply-To: <20230824155345.109765-1-hreitz@redhat.com> References: <20230824155345.109765-1-hreitz@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass client-ip=170.10.129.124; envelope-from=hreitz@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org This is a regression test for https://bugzilla.redhat.com/show_bug.cgi?id=2234374. All this test needs to do is trigger an I/O error inside of file-posix (specifically raw_co_prw()). One reliable way to do this without requiring special privileges is to use a FUSE export, which allows us to inject any error that we want, e.g. via blkdebug. Signed-off-by: Hanna Czenczek --- tests/qemu-iotests/tests/file-io-error | 99 ++++++++++++++++++++++ tests/qemu-iotests/tests/file-io-error.out | 31 +++++++ 2 files changed, 130 insertions(+) create mode 100755 tests/qemu-iotests/tests/file-io-error create mode 100644 tests/qemu-iotests/tests/file-io-error.out diff --git a/tests/qemu-iotests/tests/file-io-error b/tests/qemu-iotests/tests/file-io-error new file mode 100755 index 0000000000..a47ad0a678 --- /dev/null +++ b/tests/qemu-iotests/tests/file-io-error @@ -0,0 +1,99 @@ +#!/usr/bin/env bash +# group: rw +# +# Produce an I/O error in file-posix, and hope that it is not catastrophic. +# Regression test for: https://bugzilla.redhat.com/show_bug.cgi?id=2234374 +# +# Copyright (C) 2023 Red Hat, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . +# + +seq=$(basename "$0") +echo "QA output created by $seq" + +status=1 # failure is the default! + +_cleanup() +{ + _cleanup_qemu + rm -f "$TEST_DIR/fuse-export" +} +trap "_cleanup; exit \$status" 0 1 2 3 15 + +# get standard environment, filters and checks +. ../common.rc +. ../common.filter +. ../common.qemu + +# Format-agnostic (we do not use any), but we do test the file protocol +_supported_proto file +_require_drivers blkdebug null-co + +# This is a regression test of a bug in which flie-posix would access zone +# information in case of an I/O error even when there is no zone information, +# resulting in a division by zero. +# To reproduce the problem, we need to trigger an I/O error inside of +# file-posix, which can be done (rootless) by providing a FUSE export that +# presents only errors when accessed. + +_launch_qemu +_send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'qmp_capabilities'}" \ + +_send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'blockdev-add', + 'arguments': { + 'driver': 'blkdebug', + 'node-name': 'node0', + 'inject-error': [{'event': 'none'}], + 'image': { + 'driver': 'null-co' + } + }}" \ + 'return' + +# FUSE mountpoint must exist and be a regular file +touch "$TEST_DIR/fuse-export" + +_send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'block-export-add', + 'arguments': { + 'id': 'exp0', + 'type': 'fuse', + 'node-name': 'node0', + 'mountpoint': '$TEST_DIR/fuse-export', + 'writable': true + }}" \ + 'return' + +echo +# This should fail, but gracefully, i.e. just print an I/O error, not crash. +$QEMU_IO -f file -c 'write 0 64M' "$TEST_DIR/fuse-export" | _filter_qemu_io +echo + +_send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'block-export-del', + 'arguments': {'id': 'exp0'}}" \ + 'return' + +_send_qemu_cmd $QEMU_HANDLE \ + "{'execute': 'blockdev-del', + 'arguments': {'node-name': 'node0'}}" \ + 'return' + +# success, all done +echo "*** done" +rm -f $seq.full +status=0 diff --git a/tests/qemu-iotests/tests/file-io-error.out b/tests/qemu-iotests/tests/file-io-error.out new file mode 100644 index 0000000000..4e6758c62c --- /dev/null +++ b/tests/qemu-iotests/tests/file-io-error.out @@ -0,0 +1,31 @@ +QA output created by file-io-error +{'execute': 'qmp_capabilities'} +{'execute': 'blockdev-add', + 'arguments': { + 'driver': 'blkdebug', + 'node-name': 'node0', + 'inject-error': [{'event': 'none'}], + 'image': { + 'driver': 'null-co' + } + }} +{"return": {}} +{'execute': 'block-export-add', + 'arguments': { + 'id': 'exp0', + 'type': 'fuse', + 'node-name': 'node0', + 'mountpoint': 'TEST_DIR/fuse-export', + 'writable': true + }} +{"return": {}} + +write failed: Input/output error + +{'execute': 'block-export-del', + 'arguments': {'id': 'exp0'}} +{"return": {}} +{'execute': 'blockdev-del', + 'arguments': {'node-name': 'node0'}} +{"return": {}} +*** done