From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 17996 invoked by alias); 10 Feb 2006 22:20:55 -0000 Received: (qmail 17988 invoked by uid 22791); 10 Feb 2006 22:20:55 -0000 X-Spam-Status: No, hits=-2.6 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (66.187.233.31) by sourceware.org (qpsmtpd/0.31) with ESMTP; Fri, 10 Feb 2006 22:20:54 +0000 Received: from int-mx1.corp.redhat.com (int-mx1.corp.redhat.com [172.16.52.254]) by mx1.redhat.com (8.12.11/8.12.11) with ESMTP id k1AMKqji015273 for ; Fri, 10 Feb 2006 17:20:52 -0500 Received: from pobox.toronto.redhat.com (pobox.toronto.redhat.com [172.16.14.4]) by int-mx1.corp.redhat.com (8.11.6/8.11.6) with ESMTP id k1AMKq100379; Fri, 10 Feb 2006 17:20:52 -0500 Received: from touchme.toronto.redhat.com (IDENT:postfix@touchme.toronto.redhat.com [172.16.14.9]) by pobox.toronto.redhat.com (8.12.8/8.12.8) with ESMTP id k1AMKqje011907; Fri, 10 Feb 2006 17:20:52 -0500 Received: from ton.toronto.redhat.com (ton.toronto.redhat.com [172.16.14.15]) by touchme.toronto.redhat.com (Postfix) with ESMTP id 2D29B8000E9; Fri, 10 Feb 2006 17:20:52 -0500 (EST) Received: from ton.toronto.redhat.com (localhost.localdomain [127.0.0.1]) by ton.toronto.redhat.com (8.13.1/8.13.1) with ESMTP id k1AMKp7S007386; Fri, 10 Feb 2006 17:20:51 -0500 Received: (from fche@localhost) by ton.toronto.redhat.com (8.13.1/8.13.1/Submit) id k1AMKpB0007345; Fri, 10 Feb 2006 17:20:51 -0500 Date: Fri, 10 Feb 2006 22:20:00 -0000 From: "Frank Ch. Eigler" To: Martin Hunt Cc: systemtap@sources.redhat.com Subject: Re: kprobe fault handling Message-ID: <20060210222051.GB19238@redhat.com> References: <20060208043831.GA9313@in.ibm.com> <20060209072338.GA2902@in.ibm.com> <1139520938.2779.171.camel@dyn9047018079.beaverton.ibm.com> <1139522818.4127.15.camel@monkey2> <1139550026.4025.4.camel@monkey2> <1139608530.3947.12.camel@monkey2> <20060210221202.GA19238@redhat.com> <1139609899.3947.13.camel@monkey2> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1139609899.3947.13.camel@monkey2> User-Agent: Mutt/1.4.1i Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2006-q1/txt/msg00471.txt.bz2 Hi - > > Always for the same reason: because it invokes functions that can > > might sleep (and are in fact documented as such). > > Which function are those? Er, the "__copy_from_user" family?! The "_inatomic" function, whose name encodes its very inatomicity? - FChE