From owner-freebsd-current@FreeBSD.ORG Sat Dec 25 07:52:49 2010 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id CDF9B106566C; Sat, 25 Dec 2010 07:52:49 +0000 (UTC) (envelope-from mavbsd@gmail.com) Received: from mail-fx0-f54.google.com (mail-fx0-f54.google.com [209.85.161.54]) by mx1.freebsd.org (Postfix) with ESMTP id 0C9F98FC13; Sat, 25 Dec 2010 07:52:48 +0000 (UTC) Received: by fxm16 with SMTP id 16so7968558fxm.13 for ; Fri, 24 Dec 2010 23:52:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:sender:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :x-enigmail-version:content-type:content-transfer-encoding; bh=uL2jEicJMOzRlovk2YujrY92thR7lgGz4yKxyxNZaKA=; b=u/OpqW1tFIF6X3uXsaM6YtJIEgLkFmWgY9P+/T0+T28vNd/adnOCzcngmGzR47YubA sGxO4KdCf/3fCU0cBVVUEdsBuYMYlF/jfR1U+faLMdy+jBHYyD2/Jt30JQGg5NINnnHE VT3Rvo4TRMlHJyX8gT5GXDTlY8PFhA2aLBFgE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:x-enigmail-version:content-type :content-transfer-encoding; b=UbQeC5fjieGgqJboaH+aleHX+vF8/WZKufIp/exGCMrD3EOvEEJ7wNo6xL4/L7UZFv 9SGG/eLnPriyZRCr+G3enZRrfM2iHLyfdUfgNQqpBIGEdvlEFTvyXuwXMzUpiCibXnxC iaPSreixsffb8g0Nc5Dhj6O7ZY0YvIVDDYqqo= Received: by 10.223.98.198 with SMTP id r6mr1779393fan.42.1293263566833; Fri, 24 Dec 2010 23:52:46 -0800 (PST) Received: from mavbook2.mavhome.dp.ua (pc.mavhome.dp.ua [212.86.226.226]) by mx.google.com with ESMTPS id a25sm2472225fak.20.2010.12.24.23.52.44 (version=SSLv3 cipher=RC4-MD5); Fri, 24 Dec 2010 23:52:45 -0800 (PST) Sender: Alexander Motin Message-ID: <4D15A2AF.8090207@FreeBSD.org> Date: Sat, 25 Dec 2010 09:52:15 +0200 From: Alexander Motin User-Agent: Thunderbird 2.0.0.23 (X11/20091212) MIME-Version: 1.0 To: Julian Elischer References: <20101224143124.GC2642@mole.fafoe.narf.at> <4D1579B8.1070808@freebsd.org> In-Reply-To: <4D1579B8.1070808@freebsd.org> X-Enigmail-Version: 0.96.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Stefan Farfeleder , freebsd-current@freebsd.org Subject: Re: eventtimers hiccups X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 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: Sat, 25 Dec 2010 07:52:49 -0000 Julian Elischer wrote: > On 12/24/10 6:31 AM, Stefan Farfeleder wrote: >> since the new eventtimers code was committed, my notebook (Dell >> Precision m4400) sometimes hangs for 10-30 seconds, mostly during load. >> In these periods I can move the mouse pointer but time (as perceived by >> time(1)) seems to be halted. This is accompanied by lots of calcru: >> runtime went backwards message, though sometimes they only show up when >> shutting down. >> >> I now set kern.eventtimer.periodic=1 and have not experienced such >> freezes since then. But it would be nice if the default settigs would >> work. Is there something I could do to help fixing this? >> BTW, I'm not using powerd. > > I also need to set > > kern.eventtimer.periodic=1 > > if I want my kernel to boot under Xen. > > unfortunately it doesn't fix the problem when it doen't shut down. > (this is a Xen VPS from rootbsd.com) This is different problem. I've observed this myself too. On my short experiments system completely hanged immediately as soon as I was enabling one-shot mode on LAPIC timer, not necessary during boot. Unluckily I had no enough system access time even to get idea about what's going on there. -- Alexander Motin