From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2011C433F5 for ; Tue, 1 Mar 2022 15:19:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235638AbiCAPUW (ORCPT ); Tue, 1 Mar 2022 10:20:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:40504 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234154AbiCAPUV (ORCPT ); Tue, 1 Mar 2022 10:20:21 -0500 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C7F3825C6E; Tue, 1 Mar 2022 07:19:40 -0800 (PST) Received: by mail-pj1-x1033.google.com with SMTP id b8so14316634pjb.4; Tue, 01 Mar 2022 07:19:40 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=HGJVi4HvyALFLJMDSJ4NRMx7FbjalA7V0ZLvSwrOZe4=; b=LlMdWBQkEP4xO0NgaE8OuVoaPxo3pfgZNlRnY8yvh6mpdQRt1cEC4IxwoX1eobRTrE PKtTt4k4fz7gDvI4Os3bWwWhOopUmLsOojy48u4WvVhP5BI5h/pPnAl8T/HnNwzsqEy0 myOy7jt3zVmFPNQu9Mu35a8cfjc/eFmrReuRecJwOgF0lfaWBUxA+vv6dcmFCg31JxmN B0jeIuASA7675JwuBfPUxy1zNUOm3Z+95Y56ru2TuWJxhkV+pB+oT0DFVVurfkfCN925 Od37728vbc23txjkad16vvnulGsrlVmnA/mCh9wBRqyjImCAIIZEjweCMvHvHR5OQ/9p +n3w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=HGJVi4HvyALFLJMDSJ4NRMx7FbjalA7V0ZLvSwrOZe4=; b=lNCT/udAElGswL/pO4bKJg09bzutVBoR1t5hXkBMOYN6AsJbDqQqbuRjhX3Qil2Q6y kIwCMwxy8GWWTLgAAi5o6doxg6F3BdS6WhY9zbTe3dUylfXSdCYgrZRcYQedc0zuu9tp B8RRXT1IY2UuPm/9eqGQ3WJQswzIZfUaJlnXk9ad37+l/MEgdgkPvW5oyIPEvIwxLF4B myJ7A3XN/p2atJQxpMxS6miHEFn7KKgOj9sYI6B/3QEEL/wqzWOz2ZWRsPwbO6TqNBWJ cN8yT9ZB7vuPFdPz6EbLEVhSPomubg9L1Tj630OQpoXuhsaPKuZzvSw0xdX+z9OKw+sw G7RA== X-Gm-Message-State: AOAM5308pnMLV+ISX8zBO0413rS/Gb6bk04vWoMSHs9durhr7wCSV1fr jGQ32suX82er2FTfEWzBa6dwdOu6EdqxMw== X-Google-Smtp-Source: ABdhPJw05PFWATIHq8MYHrd3Ke31olN0g3kUniTKrvlFJZb+RCV1vDgQKm1ca7g16NI5tl/Upz2gNw== X-Received: by 2002:a17:902:f70b:b0:14d:643d:9c99 with SMTP id h11-20020a170902f70b00b0014d643d9c99mr26939699plo.18.1646147980064; Tue, 01 Mar 2022 07:19:40 -0800 (PST) Received: from localhost.localdomain ([59.12.165.26]) by smtp.gmail.com with ESMTPSA id g5-20020a63fa45000000b0037407b6ffdasm13232449pgk.5.2022.03.01.07.19.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Mar 2022 07:19:39 -0800 (PST) From: Sidong Yang To: linux-btrfs@vger.kernel.org, fstests@vger.kernel.org Cc: Sidong Yang , Shinichiro Kawasaki , Filipe Manana , "dsterba@suse.cz" Subject: [PATCH] btrfs: add test for enable/disable quota and create/destroy qgroup repeatedly Date: Tue, 1 Mar 2022 15:19:30 +0000 Message-Id: <20220301151930.1315-1-realwakka@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Test enabling/disable quota and creating/destroying qgroup repeatedly in asynchronous and confirm it does not cause kernel hang. This is a regression test for the problem reported to linux-btrfs list [1]. The hang was recreated using the test case and fixed by kernel patch titled btrfs: qgroup: fix deadlock between rescan worker and remove qgroup [1] https://lore.kernel.org/linux-btrfs/20220228014340.21309-1-realwakka@gmail.com/ Signed-off-by: Sidong Yang --- tests/btrfs/262 | 54 +++++++++++++++++++++++++++++++++++++++++++++ tests/btrfs/262.out | 2 ++ 2 files changed, 56 insertions(+) create mode 100755 tests/btrfs/262 create mode 100644 tests/btrfs/262.out diff --git a/tests/btrfs/262 b/tests/btrfs/262 new file mode 100755 index 00000000..9be380f9 --- /dev/null +++ b/tests/btrfs/262 @@ -0,0 +1,54 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2022 YOUR NAME HERE. All Rights Reserved. +# +# FS QA Test 262 +# +# Test the deadlock between qgroup and quota commands +# +. ./common/preamble +_begin_fstest auto qgroup + +# Import common functions. +. ./common/filter + +# real QA test starts here + +# Modify as appropriate. +_supported_fs btrfs + +_require_scratch + +# Run command that enable/disable quota and create/destroy qgroup asynchronously +qgroup_deadlock_test() +{ + _scratch_mkfs > /dev/null 2>&1 + _scratch_mount + echo "=== qgroup deadlock test ===" >> $seqres.full + + pids=() + for ((i = 0; i < 200; i++)); do + $BTRFS_UTIL_PROG quota enable $SCRATCH_MNT 2>> $seqres.full & + pids+=($!) + $BTRFS_UTIL_PROG qgroup create 1/0 $SCRATCH_MNT 2>> $seqres.full & + pids+=($!) + $BTRFS_UTIL_PROG qgroup destroy 1/0 $SCRATCH_MNT 2>> $seqres.full & + pids+=($!) + $BTRFS_UTIL_PROG quota disable $SCRATCH_MNT 2>> $seqres.full & + pids+=($!) + done + + for pid in "${pids[@]}"; do + wait $pid + done + + _scratch_unmount + _check_scratch_fs +} + +qgroup_deadlock_test + +# success, all done +echo "Silence is golden" +status=0 +exit diff --git a/tests/btrfs/262.out b/tests/btrfs/262.out new file mode 100644 index 00000000..404badc3 --- /dev/null +++ b/tests/btrfs/262.out @@ -0,0 +1,2 @@ +QA output created by 262 +Silence is golden -- 2.25.1