Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932635AbcLMNRK (ORCPT ); Tue, 13 Dec 2016 08:17:10 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:41525 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751396AbcLMNRG (ORCPT ); Tue, 13 Dec 2016 08:17:06 -0500 Message-Id: <20161213131115.764824574@linutronix.de> User-Agent: quilt/0.63-1 Date: Tue, 13 Dec 2016 13:14:17 -0000 From: Thomas Gleixner To: LKML Cc: x86@kernel.org, Peter Zijlstra , Borislav Petkov , Bruce Schlobohm , Roland Scheidegger , Kevin Stanton , Allen Hung Subject: [patch 0/2] tsc/adjust: Cure suspend/resume issues and prevent TSC deadline timer irq storm Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 377 Lines: 12 Roland reported interesting TSC ADJUST register wreckage on his DELL machine, which seems to populate that MSR with a random number generator. Deeper investagation into fixing this wreckage unearthed another special feature which is designed by Intel: Negative TSC adjuste values cause interrupt storms on the TSC deadline timer. Further details in patch 2/2 Thanks tglx