From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9695 invoked by alias); 5 Oct 2011 13:47:00 -0000 Received: (qmail 9686 invoked by uid 22791); 5 Oct 2011 13:47:00 -0000 X-SWARE-Spam-Status: No, hits=-6.5 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,SPF_HELO_PASS X-Spam-Check-By: sourceware.org Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 05 Oct 2011 13:46:46 +0000 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p95DkiYD005116 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK); Wed, 5 Oct 2011 09:46:44 -0400 Received: from t510.usersys.redhat.com (vpn-8-151.rdu.redhat.com [10.11.8.151]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id p95DkhaT030477 (version=TLSv1/SSLv3 cipher=DHE-RSA-CAMELLIA256-SHA bits=256 verify=NO); Wed, 5 Oct 2011 09:46:44 -0400 Message-ID: <4E8C5FC3.6070007@redhat.com> Date: Wed, 05 Oct 2011 13:47:00 -0000 From: David Smith User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2 MIME-Version: 1.0 To: Jim Keniston CC: Josh Stone , Mark Wielaard , systemtap@sourceware.org Subject: Re: Fixed PR13146 by not allowing memory allocations to sleep (Was: [SCM] systemtap: system-wide probe/trace tool branch, master, updated. release-1.6-151-g8e794e9) References: <20110901143940.13672.qmail@sourceware.org> <1317135124.3361.22.camel@springer.wildebeest.org> <4E82481E.8060502@redhat.com> <1317164453.3979.9.camel@localhost> In-Reply-To: <1317164453.3979.9.camel@localhost> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2011-q4/txt/msg00007.txt.bz2 On 09/27/2011 06:00 PM, Jim Keniston wrote: > I haven't seen this explicitly mentioned wrt this thread or PR13146, but > uprobes and uretprobe handlers (which are called from the utrace > report_signal callback) can sleep. Jim, For my information, can uprobe/uretprobe handlers sleep in the new uprobes being proposed upstream? (Note that in the new utrace-less task_finder I'm working on, handlers can't sleep since they get called from a tracepoint, whose handlers can't sleep.) -- David Smith dsmith@redhat.com Red Hat http://www.redhat.com 256.217.0141 (direct) 256.837.0057 (fax)