From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751459AbdKVOJg (ORCPT ); Wed, 22 Nov 2017 09:09:36 -0500 Received: from mout.gmx.net ([212.227.15.18]:49693 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751249AbdKVOJe (ORCPT ); Wed, 22 Nov 2017 09:09:34 -0500 Message-ID: <1511359760.8762.2.camel@gmx.de> Subject: Re: [BUG] 4.4.x-rt - memcg: refill_stock() use get_cpu_light() has data corruption issue From: Mike Galbraith To: Steven Rostedt Cc: Haiyang HY1 Tan , "'bigeasy@linutronix.de'" , "'linux-rt-users@vger.kernel.org'" , "'linux-kernel@vger.kernel.org'" , Tong Tong3 Li , Feng Feng24 Liu , Jianqiang1 Lu , Hongyong HY2 Zang Date: Wed, 22 Nov 2017 15:09:20 +0100 In-Reply-To: <20171122065955.15ac5039@gandalf.local.home> References: <05AA4EC5C6EC1D48BE2CDCFF3AE0B8A637F78A15@CNMAILEX04.lenovo.com> <20171121225002.0704d679@vmware.local.home> <1511329005.8762.0.camel@gmx.de> <20171122065955.15ac5039@gandalf.local.home> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.20.5 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K0:AJBIoZ344Ln8YQv/j1+qLHWAsWjnUmdf9MRKcVVyBxjEskCkqcM vc0y/gC2qEB57uuvA5/aAETZNGDTmTQc6TkH6QJ/sIC/NWBQlFa7TjQX1UfHxpsd18dmIwb 8/LkvqS220l2Rcmu4aZ+fIhSxy6zBu+wP/7Jq9SXawDWZj5IGiZNvbA4qduxQXF5tsSC5Sy XyBDjbenyHBmdYsyIoo4w== X-UI-Out-Filterresults: notjunk:1;V01:K0:t6MLIg3S+SQ=:cpU3KlJrxAAlDomHlgyMuz IrkFsiFvETPQXhWQczA6lynndbfeDRTi5lulg2M+KnZdytFnm50hrArEPj4sUoifLpASwEtji 4qIa1NUdMAl43hzgBg4ym3UUm4E1DhHqSPPQIK0Xa1EhZAZBlYoUgxAekP/T4N0wGgDHD1QSU or1COR5r8PP75cxkvuSdgloeUaKltyc3mm9GOkCb3iLW8gi11q0Z8iSQx+N9M8HCTMXb+qeLx CZeRhsdDNZiOTEJKjXMpLZskBHpmRQxbc78UdaWVT4gAmVH1hcXsAO/EKyu5ExFuJcqvdP7u1 hAbkXo2BY4k808ZgCisXvXzpVf8DofcZ8MW+d/cXgm44rQJOAEOkd6NcHMn3hL7msXDRQcFSw nKRKzuanlWuDEavf33ZvJAahW1hOCHE6uK1odpALUcnqizSLx1H4KznWIwpyp8vXkoCDgsNmB a/doHHc2bbzILZ5hx/kvOoVsvmXpl8Zm1Qful4VJo6Q8mQ/hvwHThpB33NYkKiB/sxIAJ0qEm 3MUKStYdmTU8YRQQ85EA1vXuyhA9dDqMrEOYe4sii6U7MqOEYBKZugB/YsYvMVhgFRLv6uuo4 wwRQIN0+1lCYPOiJzscwZUyJzEYaEfEYuVYLmgVUyAgcdVfnAjB3Xq5yAbnhiWre2aY8ZjvjN a6CCUefYrVJGc0Uy8qD6xiIvwsjy+yIPOL7ZRwER+yjF+tNdqXmFI/vnsKPuFZStFeAIVKG6I TChh1CdBR48GkINLLzywt3AtPDZ40cVUwvLjAznOLDa2hfQHPHya1hzDEGVmhurcys1vCBpzJ Gqmc4XxzU9s+dAjuI/dQCmM0l8Xi1zEQsZOnlIEtZAbxvS9LIQ= Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2017-11-22 at 06:59 -0500, Steven Rostedt wrote: > > You see. No more spin lock to gripe about. No boom in your scenario. And patches--, perfect. -Mike