From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (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 04AF7BA2E for ; Tue, 27 May 2025 01:24:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748309078; cv=none; b=C8s2ARFZ8Ccouq/1Vi8tK6DotnmI00kd3vgKz/7Hcsv21CEtqqPjpoYZP76HwLJnzldkQ9OTayHcqJVHizNx6imZXvH3U8IUPvmj2SWpqwwiZVYhrgfw4bhuUElizVOBzBnk4sgGCCQQxPIDQ1tbFBoudAEFbTozspWjSgmVGNA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748309078; c=relaxed/simple; bh=edKPbJ9KxJRCdZ59maj2fKJWh+2t1+3sBsIRbXGx8x4=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=nJnwFfFsUSIPQp98MPXbmrZtGazdv31Wgxz7lJA0NBGlwCKkpe4Ake8PoCK25xoQDPn4am9dS3kepoZWIlT24D48M5a7MM3gzZOAkX4+ABmgdrPJgLvZSQSf9YkAfAKXirmbXvOxzna+DuEPWb1YW1miW3zJewg4dyczUi2/XSU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk; spf=none smtp.mailfrom=ftp.linux.org.uk; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b=mMAlLGF1; arc=none smtp.client-ip=62.89.141.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=zeniv.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=ftp.linux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linux.org.uk header.i=@linux.org.uk header.b="mMAlLGF1" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=linux.org.uk; s=zeniv-20220401; h=Sender:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=VuHW8bt0xhxfdrOn9bR6pmhSt8NUMLzm0ppaKtCixz4=; b=mMAlLGF14ZAPVSVXRSBugjOT/u KMk+uLdpjTuELhm7aZgK+ylP1o8pkCO5xsJH0YK2+dTqFnYaxefMDL/S5zJuPu0yAmbpQVd32POtW 3FGJOgKlhJzFrAQRFdP+mwn0ibTDkhOptRNGLV+7DNg3CsUypscd/hrClRM5NECbF/AEzJGYrrOH3 CLQcrdQFrdDfXvt5m0b9jQRMDfeXqO+VYYvTM9F+DqekKuAN7f+3v27lq9Uu2Ttx1teWH7v0T7LPy cibOHA/gkz+u/DYcqIMNNt9wq1Vo3UCP8BdZwrJVFG8gl8yCPaO4DGT7xDUs4UJSKO8fin2adhJvl IyFTek4Q==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1uJj3P-00000009dNG-2jLB; Tue, 27 May 2025 01:24:31 +0000 Date: Tue, 27 May 2025 02:24:31 +0100 From: Al Viro To: Jens Axboe Cc: Vlastimil Babka , Matthew Wilcox , Jan Kara , Christoph Hellwig , "Darrick J. Wong" , Christian Brauner , linux-fsdevel@vger.kernel.org, Linus Torvalds Subject: Re: [BUG] regression from 974c5e6139db "xfs: flag as supporting FOP_DONTCACHE" (double free on page?) Message-ID: <20250527012431.GA2023217@ZenIV> References: <20250525083209.GS2023217@ZenIV> <20250525180632.GU2023217@ZenIV> <40eeba97-a298-4ae1-9691-b5911ad00095@suse.cz> <431cb497-b1ad-40a0-86b1-228b0b7490b9@kernel.dk> <6741c978-98b1-4d6f-af14-017b66d32574@kernel.dk> <3d123216-c412-4779-8461-b6691d7cafc7@kernel.dk> <20250526235600.GZ2023217@ZenIV> <5a66f3f5-7038-4807-b744-d07103ebaea2@kernel.dk> Precedence: bulk X-Mailing-List: linux-fsdevel@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: <5a66f3f5-7038-4807-b744-d07103ebaea2@kernel.dk> Sender: Al Viro On Mon, May 26, 2025 at 06:58:47PM -0600, Jens Axboe wrote: > On 5/26/25 5:56 PM, Al Viro wrote: > > On Mon, May 26, 2025 at 11:38:53AM -0600, Jens Axboe wrote: > >>> I'll poke a bit more... > >> > >> I _think_ we're racing with the same folio being marked for writeback > >> again. Al, can you try the below? > > > > It seems to survive on top of v6.15^^ > > Thanks for testing, Al! Assuming it goes without saying, but that's 6.15 > with 478ad02d6844 reverted, right? That's 6.15 without two last commits - 478ad02d6844 and the version bump ;-)