From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D6AA8204C3B for ; Thu, 9 Apr 2026 18:20:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775758808; cv=none; b=k8M8SFCAdLbf0NSxLRW+O+YWA8lIAutUFW9ILtRAocR5iY/OnvHIUMrstg26/SDN1YaO5liz+6ectXyoWJwM0i1v3t+pqckAtUOOsmVrhK/0XXFfijrxeWX7fkwZpslMP70btDBqr81ctAE0Y+dAw/yhlDylmwbFu+lDj3JgUO8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775758808; c=relaxed/simple; bh=ZigHSvBx+14kIC9PKUwmY331LWP2TKj0II3UDkUytQE=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=jY88d5cqT3PiaJ88P0I7/9fjSzGHg4qzSCbg0EvUoggdKjrVbkOsrk1IhXV3JKG6fcSOD5Ntn2HfYmdBnd2cHgxPPs/M3LcbQlHCKrehPuE4vsMi++CpFyuAYoxMPlbY+zMvijvxDakginn8hWZuhFwlMQrYbrDbxrMZS3NEPLE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JQ/eRRmO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JQ/eRRmO" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD532C4CEF7; Thu, 9 Apr 2026 18:20:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1775758808; bh=ZigHSvBx+14kIC9PKUwmY331LWP2TKj0II3UDkUytQE=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=JQ/eRRmOmwVPwBC6gVdr4zwewEVLiI/+vLuKtcpWC10Bk0bb2vqaE8VDNfsbIzKJ7 bUpUhXPjK5cZDnRd0tMElCfCuWDCoS83Rrk6RdORF0CTiiDQNEh728lRv01BW3G7Cf QuWR0/5swDp3fhZk0qgzrD0SXGVIMhyh8LAEJr450idKjGtUC32p8J2n+Fc32OzmW8 V5+ekgqF7ORGzdhUv1DRoEBDIJq0wI3vU4Kls8FJMkL9D5oD9l9BQVke9JFsBRs1S4 gjPSsLLZnCxWgT5UAPWLRbakWvvXpPTWaGRq8AOTvTKNTT2LUVeluT8XOCgY9cYDAt OpzqJcpkEvG7g== Message-ID: Date: Thu, 9 Apr 2026 20:20:01 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC] mm: stress-ng --mremap triggers severe lruvec lock contention in populate/unmap paths To: John Hubbard , Lorenzo Stoakes , Hugh Dickins Cc: Joseph Salisbury , Andrew Morton , Chris Li , Kairui Song , Jason Gunthorpe , Peter Xu , Kemeng Shi , Nhat Pham , Baoquan He , Barry Song , linux-mm@kvack.org, LKML References: <4a4f5b48-8a1d-48f8-8760-0f5d43b5d483@nvidia.com> <982e5964-5ea6-eaf7-a11a-0692f14a6943@google.com> <2cec5f0a-93cc-4572-9793-17f9fd123d2c@nvidia.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit > > Oops, yes. > > I'm on the fence about whether to post an updated version of this. > Maybe wait until someone pops up with a real need for it? > > Thoughts? +1 -- Cheers, David