From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4354AC28CC0 for ; Thu, 30 May 2019 15:18:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 26E3F25CB2 for ; Thu, 30 May 2019 15:18:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727859AbfE3PS1 (ORCPT ); Thu, 30 May 2019 11:18:27 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:44620 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727837AbfE3PS1 (ORCPT ); Thu, 30 May 2019 11:18:27 -0400 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x4UFIQji126462 for ; Thu, 30 May 2019 11:18:26 -0400 Received: from e17.ny.us.ibm.com (e17.ny.us.ibm.com [129.33.205.207]) by mx0b-001b2d01.pphosted.com with ESMTP id 2stfevffes-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Thu, 30 May 2019 11:18:25 -0400 Received: from localhost by e17.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 30 May 2019 16:16:55 +0100 Received: from b01cxnp23033.gho.pok.ibm.com (9.57.198.28) by e17.ny.us.ibm.com (146.89.104.204) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Thu, 30 May 2019 16:16:50 +0100 Received: from b01ledav003.gho.pok.ibm.com (b01ledav003.gho.pok.ibm.com [9.57.199.108]) by b01cxnp23033.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x4UFGnld13959444 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Thu, 30 May 2019 15:16:49 GMT Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 3F03CB205F; Thu, 30 May 2019 15:16:49 +0000 (GMT) Received: from b01ledav003.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 20D45B2066; Thu, 30 May 2019 15:16:49 +0000 (GMT) Received: from paulmck-ThinkPad-W541 (unknown [9.70.82.216]) by b01ledav003.gho.pok.ibm.com (Postfix) with ESMTP; Thu, 30 May 2019 15:16:49 +0000 (GMT) Received: by paulmck-ThinkPad-W541 (Postfix, from userid 1000) id E14E616C373B; Thu, 30 May 2019 08:16:50 -0700 (PDT) Date: Thu, 30 May 2019 08:16:50 -0700 From: "Paul E. McKenney" To: rcu@vger.kernel.org Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, jiangshanlai@gmail.com, dipankar@in.ibm.com, akpm@linux-foundation.org, mathieu.desnoyers@efficios.com, josh@joshtriplett.org, tglx@linutronix.de, peterz@infradead.org, rostedt@goodmis.org, dhowells@redhat.com, edumazet@google.com, fweisbec@gmail.com, oleg@redhat.com, joel@joelfernandes.org Subject: [PATCH tip/core/rcu 0/21] Torture-test updates for v5.3 Reply-To: paulmck@linux.ibm.com MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-GCONF: 00 x-cbid: 19053015-0040-0000-0000-000004F68402 X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00011185; HX=3.00000242; KW=3.00000007; PH=3.00000004; SC=3.00000286; SDB=6.01210791; UDB=6.00636161; IPR=6.00991825; MB=3.00027120; MTD=3.00000008; XFM=3.00000015; UTC=2019-05-30 15:16:54 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19053015-0041-0000-0000-000009029E54 Message-Id: <20190530151650.GA422@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-05-30_08:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=43 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1905300108 Sender: rcu-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: rcu@vger.kernel.org Hello! This series contains torture-test updates: 1. Make jitter.sh select from only online CPUs, courtesy of Joel Fernandes. 2. Add cpu0 to the set of CPUs to add jitter, courtesy of Joel Fernandes. 3. Add cond_resched() to forward-progress free-up loop. 4. Fix stutter_wait() return value and freelist checks. 5. Allow inter-stutter interval to be specified. 6. Make kvm-find-errors.sh and kvm-recheck.sh provide exit status. 7. Provide rudimentary Makefile. 8. Exempt tasks RCU from timely draining of grace periods. 9. Exempt TREE01 from forward-progress testing. 10. Give the scheduler a chance on PREEMPT && NO_HZ_FULL kernels. 11. Halt forward-progress checks at end of run. 12. Add trivial RCU implementation. 13. Tweak kvm options, courtesy of Sebastian Andrzej Siewior. 14. Capture qemu output. 15. Add function graph-tracing cheat sheet. 16. Run kernel build in source directory. 17. Make --cpus override idleness calculations. 18. Add --trust-make to suppress "make clean". 19. Dump trace buffer for callback pipe drain failures. 20. Suppress propagating trace_printk() warning. 21. Upper case solves the case of the vanishing NULL pointer. Thanx, Paul ------------------------------------------------------------------------ include/linux/torture.h | 2 kernel/locking/locktorture.c | 2 kernel/rcu/rcu.h | 5 kernel/rcu/rcutorture.c | 104 ++++++++++-- kernel/rcu/update.c | 13 + kernel/torture.c | 23 +- tools/testing/selftests/rcutorture/Makefile | 3 tools/testing/selftests/rcutorture/bin/configinit.sh | 41 +--- tools/testing/selftests/rcutorture/bin/cpus2use.sh | 5 tools/testing/selftests/rcutorture/bin/functions.sh | 13 + tools/testing/selftests/rcutorture/bin/jitter.sh | 13 + tools/testing/selftests/rcutorture/bin/kvm-build.sh | 9 - tools/testing/selftests/rcutorture/bin/kvm-find-errors.sh | 3 tools/testing/selftests/rcutorture/bin/kvm-recheck.sh | 13 + tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh | 23 +- tools/testing/selftests/rcutorture/bin/kvm.sh | 14 + tools/testing/selftests/rcutorture/bin/parse-build.sh | 2 tools/testing/selftests/rcutorture/bin/parse-console.sh | 1 tools/testing/selftests/rcutorture/configs/rcu/CFcommon | 3 tools/testing/selftests/rcutorture/configs/rcu/TREE01.boot | 1 tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL | 14 + tools/testing/selftests/rcutorture/configs/rcu/TRIVIAL.boot | 3 22 files changed, 231 insertions(+), 79 deletions(-)