From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932103AbWA1OnP (ORCPT ); Sat, 28 Jan 2006 09:43:15 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932420AbWA1OnP (ORCPT ); Sat, 28 Jan 2006 09:43:15 -0500 Received: from mx3.mail.elte.hu ([157.181.1.138]:5553 "EHLO mx3.mail.elte.hu") by vger.kernel.org with ESMTP id S932103AbWA1OnP (ORCPT ); Sat, 28 Jan 2006 09:43:15 -0500 Date: Sat, 28 Jan 2006 15:43:57 +0100 From: Ingo Molnar To: Andrew Morton Cc: linux-kernel@vger.kernel.org Subject: [patch] warn on release_region() from irq context Message-ID: <20060128144357.GA6881@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i X-ELTE-SpamScore: 0.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=0.0 required=5.9 tests=AWL autolearn=no SpamAssassin version=3.0.3 0.0 AWL AWL: From: address is in the auto white-list X-ELTE-VirusStatus: clean Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org it is not legal to call release_region() from hardirq/softirq context. Add a WARN_ON() so that we find such cases. Signed-off-by: Ingo Molnar ---- kernel/resource.c | 3 +++ 1 files changed, 3 insertions(+) Index: linux/kernel/resource.c =================================================================== --- linux.orig/kernel/resource.c +++ linux/kernel/resource.c @@ -18,6 +18,7 @@ #include #include #include +#include #include @@ -486,6 +487,8 @@ void __release_region(struct resource *p struct resource **p; unsigned long end; + WARN_ON(in_interrupt()); + p = &parent->child; end = start + n - 1;