From owner-freebsd-hackers@FreeBSD.ORG Fri Nov 4 13:07:13 2011 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 15D23106564A for ; Fri, 4 Nov 2011 13:07:12 +0000 (UTC) (envelope-from freebsd-hackers@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id 8829C8FC14 for ; Fri, 4 Nov 2011 13:07:12 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1RMJUE-00013Q-DV for freebsd-hackers@freebsd.org; Fri, 04 Nov 2011 14:07:10 +0100 Received: from lara.cc.fer.hr ([161.53.72.113]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 04 Nov 2011 14:07:10 +0100 Received: from ivoras by lara.cc.fer.hr with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 04 Nov 2011 14:07:10 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-hackers@freebsd.org From: Ivan Voras Date: Fri, 04 Nov 2011 14:06:57 +0100 Lines: 41 Message-ID: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig0911149E2C2A5C65C1D63E94" X-Complaints-To: usenet@dough.gmane.org X-Gmane-NNTP-Posting-Host: lara.cc.fer.hr User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:7.0.1) Gecko/20111004 Thunderbird/7.0.1 X-Enigmail-Version: 1.1.2 Subject: sleep(3) hangs? X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Nov 2011 13:07:13 -0000 This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig0911149E2C2A5C65C1D63E94 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable I have an "interesting" problem which is why I'm posting to the hackers@ list :) The situation is: an 8-STABLE amd64 system from a few months ago running on VMWare ESXi 5, which worked fine until today. Today, it looks like anything which "sleeps" for whatever reasons (including select(2)) simply hanged without return. Commands like "iostat 1" and "sleep 1" hang= ed. The timecounter was autodetected to HPET, hz was autoconfiguted to 100. When I changed the timecounter to ACPI-safe, situation somewhat normalized, but each second the machine sees (from "sleep 1") takes around 3-4 wall-clock seconds. I'm running the system as-is until a new kernel from todays sources is built (in the hope that something will fix it). If anyone wants me to experiment with the machine, tell me... --------------enig0911149E2C2A5C65C1D63E94 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk6z43EACgkQldnAQVacBciLugCg2mfqcPkf9pFGsuxZMGP0JXus n5UAn2sjBeiSn6hq8aifkARxQPBhZ7GR =MUjj -----END PGP SIGNATURE----- --------------enig0911149E2C2A5C65C1D63E94--