From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 46F46C43603 for ; Wed, 11 Dec 2019 15:43:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 150612073D for ; Wed, 11 Dec 2019 15:43:59 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="dT6kxVSF" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387470AbfLKPn5 (ORCPT ); Wed, 11 Dec 2019 10:43:57 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:48272 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388750AbfLKPnw (ORCPT ); Wed, 11 Dec 2019 10:43:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=fbVP3GO5TFya8NWOJb7Dgy0hxavImfzE2eK5UngY8Ac=; b=dT6kxVSFdCksVqKKxmEQrpRgx 8j7nQlD3Y53CAmIuUQNzRGcF0+mBrf2PB8fh35nl9jDugd4IbKpijkwhp/K6MkSE37DCaYdKC/fkm MUosO3b0ux0UJeLtLbtS360YNNEZ9rkAAL3UoAfWtlb9HTj/ytw0ekCeUsuRBQjMX+M93d8Brpuru fIgPCAKqK3VlbMWJJcSRxnc2vXrYjqmnLxGDyk/fkk0IBiU09ydf4vGUiGQSP8I8OY9MxhZG07Hye m6YUo9o0P5T08fCo0oKOvf30C7DURyP+kxN6eXFY/t/CB+8MQr7ZSErgHkPCxn/DmEsqPS7YwFeBv Yb3uXrcAw==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1if49T-0006lP-C2; Wed, 11 Dec 2019 15:43:47 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 82E5F3077F4; Wed, 11 Dec 2019 16:42:24 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E36CA20137C8F; Wed, 11 Dec 2019 16:43:44 +0100 (CET) Date: Wed, 11 Dec 2019 16:43:44 +0100 From: Peter Zijlstra To: Johannes Weiner Cc: Jingfeng Xie , Suren Baghdasaryan , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/2] psi: two division fixes Message-ID: <20191211154344.GP2827@hirez.programming.kicks-ass.net> References: <20191203183524.41378-1-hannes@cmpxchg.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20191203183524.41378-1-hannes@cmpxchg.org> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Dec 03, 2019 at 01:35:22PM -0500, Johannes Weiner wrote: > Hi Peter, > > here is a patch that should fix the rare div0 crashes reported by > Jingfeng, and a second patch for a div32-with-64-bit-divisor issue > spotted during code review. > > Can you please take a look and route them through the scheduler tree? Will do, Thanks!