From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 799C044724D for ; Fri, 16 Oct 2026 19:01:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792177264; cv=none; b=IVk+qjiD5us4HYKP7G3MY7Oe850xEMZbqn4iVQhz5AnAZhDUoHa7SvI6x1Wmh4Ncq7yDZoZsD2/sUo5hhYUpAtWcbcese2Q8p/1cYJbQRrZQQdp4Eg9GWkEb40sYs2SZxfm/2rDII6Sqj/3RTKRyBB/D6pRwuhEKF4L4O0UKajE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792177264; c=relaxed/simple; bh=3CgVcZpr9CN0Txsd+z8rfzxe9rcLiPO2X6bNrPjyKbQ=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=YZ0mRsouAIC+c1jRChBp3g19mJTaE1y/TrxcMRtGXAzaCH1pYJ0JJRpgzOgn10l6EmXkz42apDSJu4pn/5+POHKWRMgK2FXV+XPnM8eTViVWqmOBD112Yc+C9xKkAX8+qlj7eX2Mk5k8K6ENqcPN+HOuchWlx3BD0gkwT1IYdx8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=elvztB2T; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="elvztB2T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A336A1F000C4; Fri, 16 Oct 2026 19:01:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792177260; bh=yCjRuiZJxMp4SVs+eT4Ltj1VWHSh53ZvjvCAGOp5zvE=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=elvztB2TqTktwTuyl+qIHSHrh6YNZBxUmJGJEWStnuZFIdXTaW7vLmLM6GArjolSr 6MwI8M6OmMjniSowoqZHSmZDJ6SuE3XViwopHD1CJTPqHjxevWl9g52n1w7W+2kj3o gfu4SdaZjO7XP9WL96CRqoy//9OfO6eoA2hcqZPVrczwMQ63PEWtaNjei4OSr6Msh0 uROI11vewMjSsPF814jkdj9Z55xS/VbST+9/GJNUyEv+IcY91FrSxku8gnEcL4cpPh ePmKDWzK7Ph+ZzGvVtPc1I9lAfNLm+63uTUhdsXLFjh0wwqQ6v895hR33pmwOxKPFu aMNzmm4FYF6dg== Date: Fri, 16 Oct 2026 14:00:59 -0500 From: Clark Williams To: Wen Yang Cc: Sebastian Andrzej Siewior , Steven Rostedt , linux-rt-devel@lists.linux.dev Subject: Re: [PATCH v6.1-rt 00/15] net: Backport backlog-NAPI threads to resolve PREEMPT_RT softirq warning in SMP flush Message-ID: References: <20261014150853.f8I2fNx0@linutronix.de> <20261015133811.PtBdJYyx@linutronix.de> <2c3a8c0f-3820-4531-b179-b2656a7d3c7e@linux.dev> Precedence: bulk X-Mailing-List: linux-rt-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <2c3a8c0f-3820-4531-b179-b2656a7d3c7e@linux.dev> On Sat, Oct 17, 2026 at 02:16:02AM +0800, Wen Yang wrote: > > > On 10/15/26 21:38, Sebastian Andrzej Siewior wrote: > > - NET + proper list > > > > On 2026-10-15 08:34:28 [-0500], Clark Williams wrote: > > > I don't have a fundamental objection to the backport and agree we should > > > do v6.6-rt first, then move that back to v6.1-rt. > > > > Okay. > > > > > So it sounds like we need to pull in the RPS code first? > > > > Yes. Wen, do you mind preparing a series for v6.6-RT? > > > > Hi Sebastian, Clark, > > Thanks for the feedback. > Agreed, v6.6-rt should be fixed first to avoid reintroducing the issue > when users upgrade from v6.1-rt. Regarding the RPS prerequisites, I will > check which upstream changes are already present in v6.6-rt and identify > the remaining dependencies for the backlog-NAPI threads and defer_list > cleanup. I will prepare and test a series for v6.6-RT soon. > > Thanks, > Wen Perfect. I expect you'll have a small series for v6.6-rt and then a pretty large one for v6.1-rt. Thanks Wen, I'll be ready to apply/test when you send it. Clark -- The United States Coast Guard Ruining Natural Selection since 1790