From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 71908 invoked by alias); 10 Nov 2016 16:02:33 -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 71550 invoked by uid 48); 10 Nov 2016 16:02:21 -0000 From: "dsmith at redhat dot com" To: systemtap@sourceware.org Subject: [Bug runtime/20735] "soft lockup" bug on RHEL7 ppc64 Date: Thu, 10 Nov 2016 16:02:00 -0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: systemtap X-Bugzilla-Component: runtime X-Bugzilla-Version: unspecified X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: dsmith at redhat dot com X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: FIXED X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: systemtap at sourceware dot org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_status resolution 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: 2016-q4/txt/msg00064.txt.bz2 https://sourceware.org/bugzilla/show_bug.cgi?id=3D20735 David Smith changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #3 from David Smith --- (In reply to David Smith from comment #2) > Unfortunately, this patch causes the at_var.exp test to get hung, so I'll > need to do more work here. That comment was supposed to go on PR20742. This "soft lockup" bug is fixed in commit 58c9bd1 by using the solution mentioned in comment #1 of avoiding the module mutex and disabling/enable preemption around kallsyms_on_each_symbol() calls instead. --=20 You are receiving this mail because: You are the assignee for the bug.