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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49644C5479D for ; Wed, 11 Jan 2023 06:45:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231643AbjAKGpl (ORCPT ); Wed, 11 Jan 2023 01:45:41 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230173AbjAKGpi (ORCPT ); Wed, 11 Jan 2023 01:45:38 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B8C04BD1 for ; Tue, 10 Jan 2023 22:45:37 -0800 (PST) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 30B6Zc1A016157; Wed, 11 Jan 2023 06:45:10 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : references : date : in-reply-to : message-id : mime-version : content-type; s=pp1; bh=6SfqsB7uOTMixKdljrlYl/aZI4YHiF759X7UGEKKCzQ=; b=o+6Xg+2b5bXhcIEwRsJWTDvjs0tx6XT4cPZUnwVotV3wpo7qoe2j5OUbLfRntGPWuSjW hl0jlzaBDpQSiFpKhvauJ69GgTmR1SAyBTzW/36RyU3BxPw2KHAEh+2ObxeZHse+FL8L xdi0xb48SBcPKdpUNU+6opSzo+8cC3RtfWUnrv+GV9ys++H//h8iSIgHBULtcO2nrjxq +NVffsztrLa2UvkfJyc7lBWjSN1+yimBikw9SAAjz/dmJ8ZPuIP61mQ0Obh0zHYK3Buy IdlBOyQigbizLPmL4Dwhom7TUo/Jfx4FJz1eB4zHVMyw6zverpXmFr3TIhRz4+QZJKfM wQ== Received: from ppma03ams.nl.ibm.com (62.31.33a9.ip4.static.sl-reverse.com [169.51.49.98]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3n1qyx05ht-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Jan 2023 06:45:09 +0000 Received: from pps.filterd (ppma03ams.nl.ibm.com [127.0.0.1]) by ppma03ams.nl.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 30B1ROgL030869; Wed, 11 Jan 2023 06:45:08 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma03ams.nl.ibm.com (PPS) with ESMTPS id 3n1kf7gb54-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 11 Jan 2023 06:45:07 +0000 Received: from smtpav06.fra02v.mail.ibm.com (smtpav06.fra02v.mail.ibm.com [10.20.54.105]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 30B6j5cv46596544 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 11 Jan 2023 06:45:05 GMT Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 75FBD20049; Wed, 11 Jan 2023 06:45:05 +0000 (GMT) Received: from smtpav06.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 4A61720043; Wed, 11 Jan 2023 06:45:05 +0000 (GMT) Received: from tuxmaker.linux.ibm.com (unknown [9.152.85.9]) by smtpav06.fra02v.mail.ibm.com (Postfix) with ESMTPS; Wed, 11 Jan 2023 06:45:05 +0000 (GMT) From: Sven Schnelle To: "Paul E. McKenney" Cc: Willy Tarreau , linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/4] nolibc: add support for the s390 platform References: <20230109080910.26594-1-w@1wt.eu> <20230109191534.GU4028633@paulmck-ThinkPad-P17-Gen-1> <20230110073242.GB3229@1wt.eu> <20230110092517.GA4626@1wt.eu> <20230110145334.GL4028633@paulmck-ThinkPad-P17-Gen-1> <20230110161249.GB4649@1wt.eu> <20230110163210.GP4028633@paulmck-ThinkPad-P17-Gen-1> Date: Wed, 11 Jan 2023 07:45:05 +0100 In-Reply-To: <20230110163210.GP4028633@paulmck-ThinkPad-P17-Gen-1> (Paul E. McKenney's message of "Tue, 10 Jan 2023 08:32:10 -0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/28.0.50 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 48F-YycRd3ZTLLDVwwGkxa1ymnvpijVc X-Proofpoint-GUID: 48F-YycRd3ZTLLDVwwGkxa1ymnvpijVc X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-11_02,2023-01-10_03,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 mlxscore=0 malwarescore=0 bulkscore=0 mlxlogscore=999 impostorscore=0 suspectscore=0 phishscore=0 spamscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301110050 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org "Paul E. McKenney" writes: > On Tue, Jan 10, 2023 at 05:12:49PM +0100, Willy Tarreau wrote: >> On Tue, Jan 10, 2023 at 06:53:34AM -0800, Paul E. McKenney wrote: >> > Here is one of them, based on both the fixes and Sven's s390 support. >> > Please let me know if you need any other combination. >> >> Thanks, here's the problem: >> >> > 0 getpid = 1 [OK] >> > 1 getppid = 0 [OK] >> > 3 gettid = 1 [OK] >> > 5 getpgid_self = 0 [OK] >> > 6 getpgid_bad = -1 ESRCH [OK] >> > 7 kill_0[ 1.940442] tsc: Refined TSC clocksource calibration: 2399.981 MHz >> > [ 1.942334] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x229825a5278, max_idle_ns: 440795306804 ns >> > = 0 [OK] >> > 8 kill_CONT = 0 [ 1.944987] clocksource: Switched to clocksource tsc >> > [OK] >> > 9 kill_BADPID = -1 ESRCH [OK] >> (...) >> >> It's clear that "grep -c ^[0-9].*OK" will not count all of them (2 are >> indeed missing). >> >> We could probably start with "quiet" but that would be against the >> principle of using this to troubleshoot issues. I think we just stick >> to the current search of "FAIL" and that as long as a success is >> reported and the number of successes is within the expected range >> that could be OK. At least I guess :-/ > > Huh. Would it make sense to delay the start of the nolibc testing by a > few seconds in order to avoid this sort of thing? Or would that cause > other problems? Or define a second serial port (or something similar) in qemu and run the kernel console on ttyS0, and the init process writes to /dev/ttyS1? So the output of the test program could be redirected to a file on the host?