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 C7FDC151990 for ; Mon, 26 May 2025 23:56:03 +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=1748303766; cv=none; b=Md1cmieWx/7ZezcZnDMYUGF8iUrrWQ5FmavEx/AnUDH34ZlY+UY5h+lGXZUABoX+FC+9hpDiaPH0X93A6yoE064PSn+JOPFotaiFPIFI22MR9HgMzHYiqEvRJU5QJ6DzagzJFCvpU08tVhGTR2wC9m+44wIqQw//bNQ/VO47GhU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748303766; c=relaxed/simple; bh=XRjqI7PDkLF+ozsx+1MQp5UAbP4b2nztWUttfDFgQC8=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=JzUysjPcuR/Pta2P+5eYgQk8tzTUT4r9JG6QTPM0/U+UkoSwiToYgdWFGcdmCT2fymHXH9WWB8YF0wz1muJU8SzpZ75v4bmj8gUQYScVnjDiyDON0tK6XB69FX0JtV2A4Dbh4AP/IiLHLQNMo+vCn8GpDDcL4oDZvtei8uecLrY= 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=Esfs1Pce; 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="Esfs1Pce" 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=iAOYq91qWwus1dfJa2GUyQF68CIwI09li6jVil7zs0c=; b=Esfs1Pce2Jd0QZNAzzISvFUOXP bItX/U+s58dc2vGhJGpZC7n0c5J9pU/0A4sr8B4I9jKPuvdSW5pkhVsHzahG7QmqfJrG1z+CeHZOK +lQm+UYgZifU8ugVTWd7Y6SN2I3blIK2rBYHVKwNphCPHgZKmozEdYEiKZtj9jVWYle6H6BhlwoSn 4P+1ka1TjLx9qbKVjgQPkS6eXCpNHBD0zorvzAkcQfuzE+P3pJlloEiMRyJmpSuPXnMzcAczgs7zx tCH4jHB4vvHCXoLOjTxxcccq0ljvod54tQyQ/EtSndFuFN/gxLj6d44qZZCbm4qAkj4R2nNZtBj1B dd9Fpu/Q==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1uJhfk-00000009CMs-1Afp; Mon, 26 May 2025 23:56:00 +0000 Date: Tue, 27 May 2025 00:56:00 +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: <20250526235600.GZ2023217@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> 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: <3d123216-c412-4779-8461-b6691d7cafc7@kernel.dk> Sender: Al Viro 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^^