From owner-freebsd-current@freebsd.org Tue Oct 23 14:25:14 2018 Return-Path: Delivered-To: freebsd-current@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 87AEEFD9CAE for ; Tue, 23 Oct 2018 14:25:14 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from onlyone.not-for.work (onlyone.not-for.work [148.251.9.81]) by mx1.freebsd.org (Postfix) with ESMTP id F3DE77F590 for ; Tue, 23 Oct 2018 14:25:13 +0000 (UTC) (envelope-from lev@FreeBSD.org) Received: from [192.168.23.186] (unknown [89.113.128.32]) (Authenticated sender: lev@serebryakov.spb.ru) by onlyone.not-for.work (Postfix) with ESMTPSA id 37CCEAC8 for ; Tue, 23 Oct 2018 17:25:13 +0300 (MSK) Reply-To: lev@FreeBSD.org Subject: current kernel built without TCO (-fno-optimize-sibling-calls) is almost unusable From: Lev Serebryakov To: freebsd-current@freebsd.org References: Openpgp: preference=signencrypt Autocrypt: addr=lev@FreeBSD.org; 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WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 In-Reply-To: Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="esSOgfIXQMP5gUhUNQqE2uyMCG8hXxCXD" X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.29 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: Tue, 23 Oct 2018 14:25:14 -0000 This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --esSOgfIXQMP5gUhUNQqE2uyMCG8hXxCXD Content-Type: multipart/mixed; boundary="SXUPbFBSUNOaifU0Vg1sqkdN1GUFodaOY"; protected-headers="v1" From: Lev Serebryakov Reply-To: lev@FreeBSD.org To: freebsd-current@freebsd.org Message-ID: <23463306-1c33-8d82-dbf4-fe5913407f89@FreeBSD.org> Subject: current kernel built without TCO (-fno-optimize-sibling-calls) is almost unusable References: In-Reply-To: --SXUPbFBSUNOaifU0Vg1sqkdN1GUFodaOY Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable On 23.10.2018 17:21, Lev Serebryakov wrote: > Here are NO any errors or message on console, but system drops ssh > connection after several seconds (soemtimes before logon, sometimes > right after showing shell), timeouts connections to it, etc. >=20 > When I able to run "top -SH" (for several seconds!) it shows 98% idle!= It is as simple as this: it crashes and reboots each 1-2 minutes... --=20 // Lev Serebryakov --SXUPbFBSUNOaifU0Vg1sqkdN1GUFodaOY-- --esSOgfIXQMP5gUhUNQqE2uyMCG8hXxCXD Content-Type: application/pgp-signature; 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