From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pl1-f177.google.com (mail-pl1-f177.google.com [209.85.214.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8209B632 for ; Mon, 15 Apr 2024 00:09:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.177 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713139751; cv=none; b=R6JQUBm4p3PMpUja9oVMIDxe8wQiWuc5TvN34dWRvh3Xi49Qd0GG2IO8bWONDaUBjUVK8UM0+5CLli69Un3aeNS0PvhUqsXJ4eFikxMWsATlpSe0ATl7F1SOi5ayWUtelTWNwfz0bsT3OZqKMH2dCxgZAj6X/MkzjC2RQKQqSpw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713139751; c=relaxed/simple; bh=lRG4QtdanZsYbOJPyCd1T0Kpc1bv2cDyoPPvluaR5YU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=IERqTBmZvJzjL6xsDiPh4pVVl8sWtjfeAl5bvbJ9et9dLc/RMb6ulMF13oock8UPhqIqfTAyGrGmOmUEoVo+OEvh4+NA74uvtkmFVQ25FaxWQ2y69EPW3eh5x/Dk+kSX1e/uJPxleTtxRM4XBDfvJVCEe1h9U9cvzZ+QD7fn16M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=fromorbit.com; spf=pass smtp.mailfrom=fromorbit.com; dkim=pass (2048-bit key) header.d=fromorbit-com.20230601.gappssmtp.com header.i=@fromorbit-com.20230601.gappssmtp.com header.b=JaHZUYp9; arc=none smtp.client-ip=209.85.214.177 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=fromorbit.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=fromorbit.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fromorbit-com.20230601.gappssmtp.com header.i=@fromorbit-com.20230601.gappssmtp.com header.b="JaHZUYp9" Received: by mail-pl1-f177.google.com with SMTP id d9443c01a7336-1e5aa82d1f6so12805295ad.0 for ; Sun, 14 Apr 2024 17:09:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=fromorbit-com.20230601.gappssmtp.com; s=20230601; t=1713139750; x=1713744550; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=XD87meE/mKu5ky7rl4wzceYi2Ho+YrZL1ICbysnHKb0=; b=JaHZUYp9mgeF644MkBlt0WxmqR8+HFp/KtIFcQePbr9f09fuWSwTs5RZHOVntwEtJY /MccSgcUC+PMjFN/s93y+I2Fnt2JZxfZrb4rQY+fObtZ65iu013VBkwApARWyw60PsW1 O509jobqJisG9pgFkd+i0mLHoDA351W9iPcgr/pUry+Yyvs5zhuCKEQofR7YAOCen6Tr AyyA3D1atjH72YHg1bLfbVsfxm8gKggkNjqN929q0bHt5XRuyLVHNmw75yMETrwpvi+y P12UDuvqsqSN09akZcdwzc1Bvrkhfp8wAleEjeXdWwpO/INLX776hoBYMedidvFByLBC inGQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713139750; x=1713744550; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=XD87meE/mKu5ky7rl4wzceYi2Ho+YrZL1ICbysnHKb0=; b=P1Ea938EOOnEyPrZp8zy5FHviiOFklT8QJufhTvU3J7g2v12TVxjSgM++6tVR0Vv7Y 9jLXKRDbe7GcaQPe5L3G19p6CKQel6/UtgKVwNcF9wWUf8k4kE+/K/tL7suhEq3FEy1W oDs4Ljkcvn+E4d9rD/4h+7PTHwsbVh//ZgrOBRZcnTB0wSz/9+CGZjF9vK9g/rlri8R9 1CJOgmkAFzibrdGH2HhG7G/UYZQVNWuO6KwJFbVVGrv3JyOM7v13GrIVOg5DoHU5J9sE 6I430R2h9RTDskVeYRv3sVmsX+M0yZRTp3tu03IPOSe+O82sMP0nkx1DY3o+w8zP33eG M3tw== X-Forwarded-Encrypted: i=1; AJvYcCVUgcwo5AdopLDCsBcgv+8tMSZpDFP8fgglbKz4KDu6QZr9NbFJ2kSD0N+tDE2JOW2kVEvJz2wwIM84CO11F7rro0KWUOdHnk9V44Q6 X-Gm-Message-State: AOJu0Yx7NNlCWnTmaRMUBE34H0GA/F+wCOV+UoY36ALg0zLKIqbrLXkp 22fKbfj1uclkWwRENLA+dOHSGJGixWS7oYCSS5ObXEcJVMnOrwW/wyhTNkMeB8Y= X-Google-Smtp-Source: AGHT+IER50ZH3hDdMnKPJBATo42l+JvPADQjlqE49pRDUVeLB7sku1wzCjYhRD0RIsx9+C4cuSqWuA== X-Received: by 2002:a17:902:ea04:b0:1e0:9964:76f4 with SMTP id s4-20020a170902ea0400b001e0996476f4mr13035552plg.14.1713139749574; Sun, 14 Apr 2024 17:09:09 -0700 (PDT) Received: from dread.disaster.area (pa49-181-56-237.pa.nsw.optusnet.com.au. [49.181.56.237]) by smtp.gmail.com with ESMTPSA id w3-20020a170902904300b001e2bbc0a672sm6595737plz.188.2024.04.14.17.09.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Apr 2024 17:09:09 -0700 (PDT) Received: from dave by dread.disaster.area with local (Exim 4.96) (envelope-from ) id 1rw9uE-00FqsV-1n; Mon, 15 Apr 2024 10:09:06 +1000 Date: Mon, 15 Apr 2024 10:09:06 +1000 From: Dave Chinner To: Zhaoyang Huang Cc: Andrew Morton , "zhaoyang.huang" , Alex Shi , "Kirill A . Shutemov" , Hugh Dickins , Baolin Wang , linux-mm@kvack.org, linux-kernel@vger.kernel.org, steve.kang@unisoc.com Subject: Re: [PATCH 1/1] mm: protect xa split stuff under lruvec->lru_lock during migration Message-ID: References: <20240412064353.133497-1-zhaoyang.huang@unisoc.com> <20240412143457.5c6c0ae8f6df0f647d7cf0be@linux-foundation.org> Precedence: bulk X-Mailing-List: linux-kernel@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: On Sat, Apr 13, 2024 at 10:01:27AM +0800, Zhaoyang Huang wrote: > loop Dave, since he has ever helped set up an reproducer in > https://lore.kernel.org/linux-mm/20221101071721.GV2703033@dread.disaster.area/ > @Dave Chinner , I would like to ask for your kindly help on if you can > verify this patch on your environment if convenient. Thanks a lot. I don't have the test environment from 18 months ago available any more. Also, I haven't seen this problem since that specific test environment tripped over the issue. Hence I don't have any way of confirming that the problem is fixed, either, because first I'd have to reproduce it... -Dave. -- Dave Chinner david@fromorbit.com