From owner-freebsd-current@freebsd.org Mon Mar 29 08:38:06 2021 Return-Path: Delivered-To: freebsd-current@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id F0E465C1114 for ; Mon, 29 Mar 2021 08:38:06 +0000 (UTC) (envelope-from se@freebsd.org) Received: from smtp.freebsd.org (smtp.freebsd.org [IPv6:2610:1c1:1:606c::24b:4]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "smtp.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4F85Z66L4kz4nVQ; Mon, 29 Mar 2021 08:38:06 +0000 (UTC) (envelope-from se@freebsd.org) Received: from Stefans-MBP-449.fritz.box (p200300cd5f31b200e86ec291004cfe28.dip0.t-ipconnect.de [IPv6:2003:cd:5f31:b200:e86e:c291:4c:fe28]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) (Authenticated sender: se/mail) by smtp.freebsd.org (Postfix) with ESMTPSA id 4D03E276E3; Mon, 29 Mar 2021 08:38:06 +0000 (UTC) (envelope-from se@freebsd.org) To: Mateusz Guzik Cc: Andriy Gapon , FreeBSD CURRENT References: <58bea0f0-5c3d-4263-ebee-f939a7e169e9@freebsd.org> From: Stefan Esser Subject: Re: Strange behavior after running under high load Message-ID: Date: Mon, 29 Mar 2021 10:38:01 +0200 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.9.0 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="6AdxU7fH8YRhgoCui7OIAS8FUEehq7tRl" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 29 Mar 2021 08:38:07 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --6AdxU7fH8YRhgoCui7OIAS8FUEehq7tRl Content-Type: multipart/mixed; boundary="hnayO1vGp4maBnEU3tzQrH5k9P6ufjuVT"; protected-headers="v1" From: Stefan Esser To: Mateusz Guzik Cc: Andriy Gapon , FreeBSD CURRENT Message-ID: Subject: Re: Strange behavior after running under high load References: <58bea0f0-5c3d-4263-ebee-f939a7e169e9@freebsd.org> In-Reply-To: --hnayO1vGp4maBnEU3tzQrH5k9P6ufjuVT Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: quoted-printable Am 29.03.21 um 03:11 schrieb Mateusz Guzik: > This may be the problem fixed in > e9272225e6bed840b00eef1c817b188c172338ee ("vfs: fix vnlru marker > handling for filtered/unfiltered cases"). My system was up for less than 24 hours and using a kernel and world built on the latest -CURRENT of less than 1 hour before the reboot: FreeBSD 14.0-CURRENT #33 main-n245694-90d2f7c413f9-dirty: Sat Mar 27 15:3= 5:37=20 CET 2021 The fix had been committed some 9 days before that kernel was built. > However, there is a long standing performance bug where if vnode limit > is hit, and there is nothing to reclaim, the code is just going to > sleep for one second. There are no log entries that give any hint to what occurred. But I do assume that these events are not logged ... (?) Yes, I could have checked that and will do so if the issue occurs again. I plan to generate more output files in the same way that triggered the issue yesterday, and since the system is very slow but still able to execute commands, I can try to debug it, just have to know where to start looking ... Thank you for your reply! Regards, STefan --hnayO1vGp4maBnEU3tzQrH5k9P6ufjuVT-- --6AdxU7fH8YRhgoCui7OIAS8FUEehq7tRl Content-Type: application/pgp-signature; name="OpenPGP_signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="OpenPGP_signature" -----BEGIN PGP SIGNATURE----- wsB5BAABCAAjFiEEo3HqZZwL7MgrcVMTR+u171r99UQFAmBhkekFAwAAAAAACgkQR+u171r99USX KwgAsC3bOXtdQnd5wFdvUy7fycAJTpNvEhIgsWaq2zrzzOVIIUchVH/GnwqIdX9FY518bJVF3chb oEG9A/RKn9Cj7rgimqN6kzTc5O7PnulqCMp+RxiFyUD2Q8zjR38PBBmdXUcXyQBoaP5WY5IH94JH 9guPTvJV2dvmFSA7csHarEh6JJLe9gTqTLMueknv7UDcjnUy1AFPDV/sC9TdcJ/vJr6aJeIrajdO e3eZW284YQ96npeNKEba6L2QMJizvM++yr7JpdZfQy1chqce0DLi/by9UKm9kJXQqUFx2y8zk6uY FtelYkBjcIdzSwetZzAAeRYRaGdTxqRwCef5kCoSyw== =rgFo -----END PGP SIGNATURE----- --6AdxU7fH8YRhgoCui7OIAS8FUEehq7tRl--