From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 860D435957; Fri, 10 Oct 2025 05:17:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.137.202.133 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760073446; cv=none; b=H6T9YLL8czCBXcC4Af2M1vIV1yKtObxufDdxFI5+IjZqBr3U0aChHgigH8hpO0/NLzrI+fEzGar0xhwNf0wDG6/zTgLhW1gJHS8SH2cFFnfq9AwdQtWjB/9bh1zjiiJq+C6NKeUOHzdEXTPJS9pfGkT5eRn9mhjpggwRbEBP1ME= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760073446; c=relaxed/simple; bh=9Vh8lk+lR1y93KfcHP+uWP8NRG89UN/phcU1DDGze7E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Td9ZdVT7Jz24zmK/OfxlNN1rs2AG+owEP7Gj6vBl474r2z/IMxPaX92HMnd1R/RdXPkZuDusQFo4gew/vc55NyMmPksDLZ5et9/+0OPPMzM0DKXMohAosFvRYaEANq5/B7Rf4pEQwyetxBD1zY+WjUJuNQNf4uiSjovY/bdLiqQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=MP7wBmKH; arc=none smtp.client-ip=198.137.202.133 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="MP7wBmKH" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=abbETGVm6GnVYpDK0/3pKaYOuRq5SCQFS58nsHOJFNs=; b=MP7wBmKHs5T/KEUepU65w9V1yu z1rnXSDjgCVeQ0R1Dn4K5ybGyGKIrQL/RaUCy9U3N0sImIv3F32qaqrQ6rhSMN/Q4oHonr9I6es37 Z06i7EUG03ABQfISSWZfG1/9i1VH7lUzGFfYbkdB1fpnxc5c2cYYuaaiGr/noz9mSQl7Qo8im0aEG 37F8XKwQeTbiCIgcN0teS19u5O1+8ORAeafD5DOaafXnfhzymd5vRfD5Bx4U2VM/NJszByuHBo1Pw 66pA7O7iRow9eeHubMchcGjwfnJfK2V8zwyMtU71mtcnnLRH+RyoIimNHLwXKfOijd+7s63Texc/m 7Xr8vI9Q==; Received: from hch by bombadil.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1v75VH-00000007hTE-1OBD; Fri, 10 Oct 2025 05:17:19 +0000 Date: Thu, 9 Oct 2025 22:17:19 -0700 From: Christoph Hellwig To: Eric Sandeen Cc: "linux-xfs@vger.kernel.org" , "fstests@vger.kernel.org" , "Darrick J. Wong" Subject: Re: mkfs.xfs "concurrency" change concerns Message-ID: References: <84c8a5e5-938d-4745-996d-4237009c9cc5@sandeen.net> Precedence: bulk X-Mailing-List: fstests@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: <84c8a5e5-938d-4745-996d-4237009c9cc5@sandeen.net> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Thu, Oct 09, 2025 at 03:13:47PM -0500, Eric Sandeen wrote: > Specifically, xfs/078, xfs/216, and xfs/217 are failing for us > on various machines with between 8 and 128 CPUS, due to the > fundamental change in geometry that results from the new > concurrency behavior, which makes any consistent golden > output that involves geometry details quite difficult. FYI, the zoned XFS CI has seen these fail as well, and I've never been able to reproduce it locally. The CI runs on a fairly beefy box so I suspect it could be correlated.