From owner-freebsd-hackers@freebsd.org Thu Apr 11 06:36:25 2019 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id DD849157B5D1 for ; Thu, 11 Apr 2019 06:36:24 +0000 (UTC) (envelope-from marklmi@yahoo.com) Received: from sonic301-30.consmr.mail.ne1.yahoo.com (sonic301-30.consmr.mail.ne1.yahoo.com [66.163.184.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 69C3581296 for ; Thu, 11 Apr 2019 06:36:23 +0000 (UTC) (envelope-from marklmi@yahoo.com) X-YMail-OSG: Vxc9MVAVM1ng.Gl3B71NAvecqEXnQiSP7JnJhws5hjaN9UuG3pTFlGh4ltAVVtw GUk1lPmH1Bw5sLJ35GvTNe5xj_wTkHsuUJJfgEEkJYsG_s5O7ke9MjU7ujRfKz5fM6l.7WKWQFV6 Gt2DhqEP8VIsOxUnarOr7WFo7u.SUKqpX33fFDtBVTjNKZrU25CzOIoPTYRbZoJw1I6p.WMXsOrs RYxwYNtPxrGgyO1oaqAffy_q_N7MlC2dT6NnyvkgSCBgIk.Pct1qJqO39703r0j3700gf_W.yD_U e7l2NZumxnOgMv45cUPYI00gl7L8F785oI2cdBtuLkeygf_8Gn2Q5lEJbmupoBqGZCIYlia5A33_ AxjSM5dCdZ4VOaQuhmXJaviOGf8c_UQ10OcR8_BQbgD0GJczdCDlSoMz232zzLL112NaEaBfT7Yu ByAw2RzysH221oXPYLlDqtX5ZNg0UOgPBvNM5L0RHCiShe_khNg.SU3JyydTy4kCI11iaYD2ED6A Dcyv02O5F.eU9FHSTb0PQzOrnXCMU0cDPmAY2.gitTYb0bZbFwst7xuwcKgKgaYZLNIWyKIZiIlG 5FXUpoHE0pQoNGqwk9lhuzEK.PtbSWdMmWEtgSBHMinOXLQE0__FKPxujjiZObvCU6QySuxtyhRs m_9R2Ax4HUqosGadSQ3EiY9AtLqm_OWjna.a17yIHmh2F3DrE886nQaJztiHNKa_7O.AhrwKYP4u tLHHNrG8bpB2ib9oQQ4jgLYj.x05HJcfwUptluCtCvGtEjZGX1hBkvO1xAyDMW1do66.TtIUU1Tl dkP65vZ7ZD.0InogBSLigLl26DEBLTUgZDxT38Mq_z3gh2z8y6jnoJRVw1A0ycrWvm.CBwYx4ZCU p7tjOlexgbgHjJPb2iNOvXLlL_zas1QqRkIYebieqXBQttejLk2TWE1iNrktyVCcFif6PVnMRTv1 WbdoYOTvSwW0m.bvKVq68S93kI1rjiBSBq_Tq711Rs.PkqtGqJpFExEe3.9LIqSUw1DPnvYrn5Sc ChMLQQoyHgnXEDUP7QXJwKsFUGgYphCl0oJlvDk4mmT2MKLBA6bD0Q87KdWws2wdl5lXNgM8NNzX Wc4xtxMTf_GeAynythXBQPNr44xrK3g0- Received: from sonic.gate.mail.ne1.yahoo.com by sonic301.consmr.mail.ne1.yahoo.com with HTTP; Thu, 11 Apr 2019 06:36:16 +0000 Received: from c-76-115-7-162.hsd1.or.comcast.net (EHLO [192.168.1.103]) ([76.115.7.162]) by smtp421.mail.ne1.yahoo.com (Oath Hermes SMTP Server) with ESMTPA ID e3c17f6aff277e7832aeac166b1cba39; Thu, 11 Apr 2019 06:36:12 +0000 (UTC) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.8\)) Subject: Re: powerpc64 head -r344018 stuck sleeping problems: th->th_scale * tc_delta(th) overflows unsigned 64 bits sometimes [patched failed] From: Mark Millard In-Reply-To: <7B096BB4-7DBA-4B95-AC1E-DDD9A7DF3B22@yahoo.com> Date: Wed, 10 Apr 2019 23:36:10 -0700 Cc: freebsd-hackers Hackers , FreeBSD PowerPC ML Content-Transfer-Encoding: quoted-printable Message-Id: References: <20190307222220.GK2492@kib.kiev.ua> <20190309144844.K1166@besplex.bde.org> <20190324110138.GR1923@kib.kiev.ua> <20190403070045.GW1923@kib.kiev.ua> <20190404011802.E2390@besplex.bde.org> <20190405150236.A959@besplex.bde.org> <20190405201055.I2396@besplex.bde.org> <20190405113504.GA1923@kib.kiev.ua> <55604EF6-CB81-4300-8E9E-E3A94504D0B5@yahoo.com> <3592A7F1-9EAE-4A33-B51A-678BE104E18C@yahoo.com> <7B096BB4-7DBA-4B95-AC1E-DDD9A7DF3B22@yahoo.com> To: Konstantin Belousov , Bruce Evans X-Mailer: Apple Mail (2.3445.104.8) X-Rspamd-Queue-Id: 69C3581296 X-Spamd-Bar: + X-Spamd-Result: default: False [1.29 / 15.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_SPF_ALLOW(-0.20)[+ptr:yahoo.com]; MV_CASE(0.50)[]; FREEMAIL_FROM(0.00)[yahoo.com]; RCVD_COUNT_THREE(0.00)[3]; TO_DN_ALL(0.00)[]; DKIM_TRACE(0.00)[yahoo.com:+]; MX_GOOD(-0.01)[cached: mta6.am0.yahoodns.net]; DMARC_POLICY_ALLOW(-0.50)[yahoo.com,reject]; FREEMAIL_TO(0.00)[gmail.com]; FROM_EQ_ENVFROM(0.00)[]; RCVD_TLS_LAST(0.00)[]; MIME_TRACE(0.00)[0:+]; FREEMAIL_ENVFROM(0.00)[yahoo.com]; ASN(0.00)[asn:36646, ipnet:66.163.184.0/21, country:US]; MID_RHS_MATCH_FROM(0.00)[]; DWL_DNSWL_NONE(0.00)[yahoo.com.dwl.dnswl.org : 127.0.5.0]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.35)[-0.348,0]; R_DKIM_ALLOW(-0.20)[yahoo.com:s=s2048]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[4]; NEURAL_SPAM_SHORT(0.84)[0.841,0]; MIME_GOOD(-0.10)[text/plain]; IP_SCORE(1.18)[ip: (3.36), ipnet: 66.163.184.0/21(1.44), asn: 36646(1.16), country: US(-0.06)]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_SPAM_LONG(0.12)[0.125,0]; RCVD_IN_DNSWL_NONE(0.00)[199.184.163.66.list.dnswl.org : 127.0.5.0] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 11 Apr 2019 06:36:25 -0000 I do not know if the below will suggest any test cases or not. I just note it for superficial similarity and possibly more usual hardware than the old PowerMac context that I have. https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D230451 "nanosleep = hangs forever" seems to be an example on an old ~500 MHz 586-class AMD CPU when kern.timecounter.hardware was ACPI-fast instead of TSC. The 2018-08-08 report was for 11.2-Stable. =3D=3D=3D Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar)