From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:35076 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727947AbeLMOdi (ORCPT ); Thu, 13 Dec 2018 09:33:38 -0500 Date: Thu, 13 Dec 2018 09:33:36 -0500 From: Sasha Levin To: Backport@sasha-vm, for@sasha-vm, cachelinestarvationonx86@sasha-vm Cc: stable@vger.kernel.org, Peter Zijlstra , Will Deacon , Thomas Gleixner , Daniel Wagner Subject: Re: your mail Message-ID: <20181213143336.GI2746@sasha-vm> References: <20181213140925.6179-1-bigeasy@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20181213140925.6179-1-bigeasy@linutronix.de> Sender: stable-owner@vger.kernel.org List-ID: On Thu, Dec 13, 2018 at 03:09:15PM +0100, Sebastian Andrzej Siewior wrote: >Hi, > >this is a backport of commit 7aa54be297655 ("locking/qspinlock, x86: >Provide liveness guarantee") for the v4.9 stable tree. >For the v4.4 tree the ARCH_USE_QUEUED_SPINLOCKS option got disabled on >x86. >For v4.9 it has been decided to do a minimal backport of the final fix >(including all its dependencies). >With this backport I can't reproduce the issue in the latest v4.9-RT >tree. I was able to boot (and use) an arm64 box with these patches so it >is not broken in an abvious way. What about 4.14? I see that at least some of these patches are missing there. -- Thanks, Sasha