From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753451AbbDGLXL (ORCPT ); Tue, 7 Apr 2015 07:23:11 -0400 Received: from www.linutronix.de ([62.245.132.108]:37513 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752870AbbDGLXJ (ORCPT ); Tue, 7 Apr 2015 07:23:09 -0400 Date: Tue, 7 Apr 2015 13:23:25 +0200 (CEST) From: Thomas Gleixner To: Thavatchai Makphaibulchoke cc: Steven Rostedt , LKML , mingo@redhat.com, linux-rt-users , umgwanakikbuti@gmail.com, Peter Zijlstra Subject: Re: [PATCH v2 1/2] rtmutex Real-Time Linux: Fixing kernel BUG at kernel/locking/rtmutex.c:997! In-Reply-To: <1428369962-74723-2-git-send-email-tmac@hp.com> Message-ID: References: <1424395866-81589-1-git-send-email-tmac@hp.com> <1428369962-74723-1-git-send-email-tmac@hp.com> <1428369962-74723-2-git-send-email-tmac@hp.com> User-Agent: Alpine 2.11 (DEB 23 2013-08-11) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 6 Apr 2015, Thavatchai Makphaibulchoke wrote: > This patch fixes the problem that the ownership of a mutex acquired > by an interrupt handler(IH) gets incorrectly attributed to the > interrupted thread. An hard interrupt handler is not allowed to take a mutex. End of story, nothing to fix here. Thanks, tglx