From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26307 invoked by alias); 11 Jul 2006 10:45:20 -0000 Received: (qmail 26237 invoked by uid 48); 11 Jul 2006 10:45:12 -0000 Date: Tue, 11 Jul 2006 10:45:00 -0000 Message-ID: <20060711104512.26236.qmail@sourceware.org> From: "bibo dot mao at intel dot com" To: systemtap@sources.redhat.com In-Reply-To: <20051216010933.2062.anil.s.keshavamurthy@intel.com> References: <20051216010933.2062.anil.s.keshavamurthy@intel.com> Reply-To: sourceware-bugzilla@sourceware.org Subject: [Bug kprobes/2062] Return probes does not scale well on SMP box X-Bugzilla-Reason: AssignedTo 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-q3/txt/msg00052.txt.bz2 ------- Additional Comments From bibo dot mao at intel dot com 2006-07-11 10:45 ------- there possibly exists recursive deadlock about kretprobe, recycle_rp_inst() is called with ri's hash-bucket locked, it maybe walks kfree(ri) function patch, if kfree funciton is probed also by kretprobe. And when kfree kretprobe is hit, it will call hash_rp_inst() function, hence recursive deadlock will occur. This problem also exists on baseline kernel version. -- http://sourceware.org/bugzilla/show_bug.cgi?id=2062 ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.