From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2BC031EDA0F; Wed, 24 Jun 2026 17:44:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782323046; cv=none; b=rm2UIQsk8Z/JQtRs8kg4N3/VJT9mfIisZKuPOhyiFrAdiS16N0gsKF5b6Ueq+m9m+5+FI7/J05Tc1nAqqCtwCVSYkwxn6HJyWjJvOvWr87sDNyBFGTdVL6V8KyqyjAPSJSnswdToSArRdwuPPDaZMW94qzHq6gj/Dbk95p+opoQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782323046; c=relaxed/simple; bh=ejFr/WxL7j84oEJrJ7vPadBIqFQuXa6rjbGKo8YgsDU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HXOu5ke7WprvcuCG8YDtHJ+hHWdQUI2F/Tui2cSPEJHyV8mZ9nWQvVdlISMVasYzj8GI74vadOIXccklGt5IirQ/lFnPOhtvEWWgsj1sneId6YaIT2foXsGK2xh5LImmpE1Q4R84fHnqVrJgCB264JgOHvWLYZB/ELCz7zCKDZs= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Oz6HVjQ8; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Oz6HVjQ8" Received: by smtp.kernel.org (Postfix) with UTF8SMTPSA id A9FF11F00A3A; Wed, 24 Jun 2026 17:44:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1782323044; bh=WfK2N2oJ3+2u8ky1p9lFxKQAgmuLNyiZ0yVYPK0yXjk=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Oz6HVjQ8r33PR4253lkslWCPbsuyQsRTiWn1cXDwpUpN5s9QLMvANKg69hv0XWNKL 78+kf2Pg0prHjCCw9CuOR2IdGoDDqvspVUVvG+C2+HoxrKAQeddEXdKH2HRrleNwoz oH0thQMjx1UFWYdBQQhX5fXb7deKweu7CFusp/TcrOCyK36wXvImoBk1B376ILi9XR PX2FJFq/gvTuA6BMBcCBceIlzAx2NTLpjeOX0hahJOF/deCDniPAiaq/wxo1TcD5rS Jrf+VcgTx7oZfTMaNEJsQBT7IG/PDL68taoul2Ar0BVfp/vTkKgic1OvKLc2F/Ebad T4r38I5pm8bQg== Date: Wed, 24 Jun 2026 10:44:04 -0700 From: "Darrick J. Wong" To: Christoph Hellwig Cc: Zorro Lang , Lukas Herbolt , Eric Sandeen , Shin'ichiro Kawasaki , linux-xfs@vger.kernel.org, fstests@vger.kernel.org Subject: Re: [PATCH 2/2] xfs/216: disable all concurrency scaling Message-ID: <20260624174404.GS6078@frogsfrogsfrogs> References: <20260619050937.444488-1-hch@lst.de> <20260619050937.444488-3-hch@lst.de> Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260619050937.444488-3-hch@lst.de> On Fri, Jun 19, 2026 at 07:09:29AM +0200, Christoph Hellwig wrote: > This test currently disables log concurrency scaling, but even the > data device concurrency scaling can create mismatching output on > systems with a large CPU count. > > Reported-by: Shin'ichiro Kawasaki > Signed-off-by: Christoph Hellwig > Tested-by: Shin'ichiro Kawasaki > --- > tests/xfs/216 | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tests/xfs/216 b/tests/xfs/216 > index 1749647c11f7..ce8bb528410b 100755 > --- a/tests/xfs/216 > +++ b/tests/xfs/216 > @@ -23,7 +23,7 @@ _cleanup() > _require_scratch > _scratch_mkfs_xfs >/dev/null 2>&1 > if _scratch_mkfs_xfs_supports_concurrency -l >> $seqres.full 2>&1; then > - loop_mkfs_opts="-l concurrency=0" > + loop_mkfs_opts="-d concurrency=0 -l concurrency=0 -r concurrency=0" /me notes that -lconcurrency is not compatible with -llogdev and the loopdev is not formatted with SCRATCH_MKFS_OPTIONS, so this won't work to disable the concurrency= mkfs options if fstests is being run with SCRATCH_LOGDEV set. --D > else > loop_mkfs_opts="" > fi > -- > 2.53.0 > >