From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 121578 invoked by alias); 6 Jun 2018 17:58:42 -0000 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 Received: (qmail 121324 invoked by uid 48); 6 Jun 2018 17:58:35 -0000 From: "fche at redhat dot com" To: systemtap@sourceware.org Subject: [Bug kprobes/23260] SystemTap usage appears to adversely affect GDB breakpoint functionality Date: Wed, 06 Jun 2018 17:58:00 -0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: systemtap X-Bugzilla-Component: kprobes X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: fche at redhat dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: systemtap at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://sourceware.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2018-q2/txt/msg00095.txt.bz2 https://sourceware.org/bugzilla/show_bug.cgi?id=3D23260 Frank Ch. Eigler changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fche at redhat dot com --- Comment #2 from Frank Ch. Eigler --- It doesn't make sense. I wonder if the gdb case tickles some kernel proble= ms, or maybe violates expectations of the golang runtime -- maybe only pausing a few threads rather them all? I wonder if a perf-probe set attached to the = same probe points can demonstrate the problem (vs. systemtap). See scripts/stap2perf and/or stap -DALIBI. --=20 You are receiving this mail because: You are the assignee for the bug.