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=-2.4 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, USER_AGENT_MUTT autolearn=ham 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 BFB07C43142 for ; Thu, 2 Aug 2018 08:45:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5D35120C0C for ; Thu, 2 Aug 2018 08:45:44 +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="n0rKjYRH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5D35120C0C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727495AbeHBKfu (ORCPT ); Thu, 2 Aug 2018 06:35:50 -0400 Received: from merlin.infradead.org ([205.233.59.134]:56072 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726194AbeHBKfu (ORCPT ); Thu, 2 Aug 2018 06:35:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.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=kGLR0t9rODv77IGF1qAQLRPm9L4bwQa2XHPP0pVa2C4=; b=n0rKjYRH4sP2XTpIQCvZaWQ7c c8UQD8VfhTreXKRyGwLZrajITrYIEzcXTGTfdkdvA6+burZDV9wwpwvCyin/luYangCE85IcSnChF ZwfaDA9vDu/YsQyozFQloCrX3u+3gq/2aiaSFJagmJ0anDBMTo2QQMQs6DKiCKVmI/AmlLMTN3w+4 DdB24Mqzf0R/tDb+nCQ3PbUaxmOxWfbiTspPfPSFrjpRpFLq1SJsxSpvsRLIVqYGUCRrTzP1Z84p6 oC+eUA9kUV1BMAitkAwZAC3UVzJa9VDTx7MCffmWR16N2XUH5zPf+Ukuszon8Hja4zKCekuIp7RAM xfae2AuYQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fl9Ek-0004AZ-OT; Thu, 02 Aug 2018 08:45:35 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id E65AE20267E42; Thu, 2 Aug 2018 10:45:32 +0200 (CEST) Date: Thu, 2 Aug 2018 10:45:32 +0200 From: Peter Zijlstra To: Sodagudi Prasad Cc: mingo@kernel.org, gregkh@linuxfoundation.org, bigeasy@linutronix.de, tglx@linutronix.de, isaacm@codeaurora.org, linux-kernel@vger.kernel.org Subject: Re: cpu stopper threads and setaffinity leads to deadlock Message-ID: <20180802084532.GJ2494@hirez.programming.kicks-ass.net> References: <24eebe1d874cb8e3b9a18087554544fa@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <24eebe1d874cb8e3b9a18087554544fa@codeaurora.org> User-Agent: Mutt/1.10.0 (2018-05-17) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Aug 01, 2018 at 06:34:40PM -0700, Sodagudi Prasad wrote: > the Linux-4.14.56 kernel. Can you also please run on something recent...