From owner-freebsd-hackers@freebsd.org Sun Feb 18 19:52:05 2018 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 09858F25238 for ; Sun, 18 Feb 2018 19:52:05 +0000 (UTC) (envelope-from marklmi26-fbsd@yahoo.com) Received: from sonic310-14.consmr.mail.bf2.yahoo.com (sonic310-14.consmr.mail.bf2.yahoo.com [74.6.135.124]) (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 A473E87B8B for ; Sun, 18 Feb 2018 19:52:04 +0000 (UTC) (envelope-from marklmi26-fbsd@yahoo.com) X-YMail-OSG: 5uz4meQVM1kbbDfbbDEEecZVxP3jU75lHCnMSy2oMdaCEOWIwMjI6k86bWoYsyi QRhNU87cnIe1MnK293QAur7PsNlbuouVpXjz74x07mZAZkItVZW5geiHqpia87ldFt3RTnUOiksL 6mx8kdj_jki.Ubl8h0pJvtAd_z72ZKLFpXHTw6e5LDu4SpHDKpyki71UWA77iH5BUzxXEPTRiBxr uK_cQpLe9NWdfAcW1PZ.J5oYFK08bJkuW8km4fEvsvHB.9NzONsYnDCytZtB9Essh3lOc_gjTG0v 4NYgYOjU99fkC0CTJ0PPs9R6tXK37et3yh6mLYhy_4Uujkj06_mdJaXawt.cQy1tLdtex7ExeaBg VT.sWQdXVpebk.P5eyTnBMQnH6mxhCff9axVu.WsivUbj.v4rr8GlwOySoAHu3I7oI6YJ918IpRr .hcg8LtYrb2kec3NasmcGygxX78AYNUZqpjcPFyQd6KH00VRiyncS_V4PQQdc_MDvd8JZ Received: from sonic.gate.mail.ne1.yahoo.com by sonic310.consmr.mail.bf2.yahoo.com with HTTP; Sun, 18 Feb 2018 19:51:58 +0000 Received: from smtp101.rhel.mail.bf1.yahoo.com (EHLO [192.168.1.25]) ([68.142.231.32]) by smtp409.mail.bf1.yahoo.com (JAMES SMTP Server ) with ESMTPA ID ba15a840364f155c1584bae7ccf8d823; Sun, 18 Feb 2018 19:51:56 +0000 (UTC) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 11.2 \(3445.5.20\)) Subject: Re: amd64 head -r329465 (non-debug build, but with symbols): "panic: spin lock held too long" during make check-old, reported during a sys_vfork From: Mark Millard In-Reply-To: Date: Sun, 18 Feb 2018 11:51:52 -0800 Cc: FreeBSD Current , FreeBSD Hackers Content-Transfer-Encoding: quoted-printable Message-Id: <6D47FEC0-7991-4F76-AC31-2CC1E8934521@yahoo.com> References: <6907E068-C80A-44B8-A8AD-3EF27D52D127@yahoo.com> <20832C61-AA5D-41A6-8BF9-90CC87D17219@yahoo.com> To: =?utf-8?Q?Trond_Endrest=C3=B8l?= X-Mailer: Apple Mail (2.3445.5.20) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.25 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 18 Feb 2018 19:52:05 -0000 On 2018-Feb-18, at 11:30 AM, Trond Endrest=C3=B8l wrote: > On Sun, 18 Feb 2018 19:08+0100, Mateusz Guzik wrote: >=20 >> Can you please bisect this? There is another report stating that = r329418 >> works fine. >=20 > My problems started yesterday with r329464. I decided to go back to=20 > r329101 (ZFS BE), update the source tree, move forward to the latest=20= > revision, and so on. I even emptied /usr/obj and /var/cache/ccache and=20= > set WITHOUT_SYSTEM_COMPILER=3Dyes in /etc/src.conf to get rid of any=20= > bias. >=20 > I have tried with success r329418, r329419, r329420, and r329422. >=20 > I'm now at r329448 and have not seen any spin lock problems so far. Note: -r329448 was reverted in -r329461 : racy. > Sooner or later I'll reach r329464 and by then it should be clear=20 > which revision is the likely culprit. =3D=3D=3D Mark Millard marklmi at yahoo.com ( markmi at dsl-only.net is going away in 2018-Feb, late)