From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 21510 invoked by alias); 6 May 2012 21:16:28 -0000 Received: (qmail 21501 invoked by uid 22791); 6 May 2012 21:16:27 -0000 X-SWARE-Spam-Status: No, hits=-3.7 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from localhost (HELO sourceware.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sun, 06 May 2012 21:16:14 +0000 From: "fche at redhat dot com" To: systemtap@sourceware.org Subject: [Bug runtime/14026] print_ubacktrace doesn't resolve the symbol name Date: Sun, 06 May 2012 21:16:00 -0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: systemtap X-Bugzilla-Component: runtime X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: fche at redhat dot com X-Bugzilla-Status: NEW X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: systemtap at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: CC Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 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: 2012-q2/txt/msg00129.txt.bz2 http://sourceware.org/bugzilla/show_bug.cgi?id=14026 Frank Ch. Eigler changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fche at redhat dot com --- Comment #20 from Frank Ch. Eigler 2012-05-06 21:15:41 UTC --- (In reply to comment #19) > I finally understand what is happening, though I still don't understand how it > can happen. > > The real problem is that we enter the unwinder with PC 8074811. While the probe > point actually is 8074810. The code you quote refers to the struct uprobe->vaddr as the intended original address of the breakpoint. Perhaps that address is being munged. Have we seen yet a version of the run with -DDEBUG_UPROBES and stap -p3 output? Which uprobes/utrace version was being used? (stap-report?) -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.