From owner-freebsd-current@FreeBSD.ORG Wed Jul 28 18:47:38 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 E4F301065670 for ; Wed, 28 Jul 2010 18:47:38 +0000 (UTC) (envelope-from mdf356@gmail.com) Received: from mail-pz0-f54.google.com (mail-pz0-f54.google.com [209.85.210.54]) by mx1.freebsd.org (Postfix) with ESMTP id B95538FC17 for ; Wed, 28 Jul 2010 18:47:38 +0000 (UTC) Received: by pzk7 with SMTP id 7so2333569pzk.13 for ; Wed, 28 Jul 2010 11:47:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:in-reply-to :references:date:message-id:subject:from:to:content-type :content-transfer-encoding; bh=EUO7w3+NFLMp+Ogb3GU4ZUA2e3+tkoJgGdQAo49XPLM=; b=uyOu+10W9konE0JlX9oYppVrU0lWnip0lBoRRo0Yf0h/s9LoDyoT1Bzsf2MZz0lb3U 4Yx1Bv1sZQKzAr7Xm18f0xLTe7QAUfjqWF6Yx4AZeQC2nWM6tMr49zcbyy4qnTg2sN0D 1iBnhcV5gEZJ/jd9royNWrDPSoYf0VUnXw7uA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; b=jdfsdPfSqwMzcISDwgK/XSRk0VaZJBkIxe0THrt3dmkr7+l6n8rJhBmRw6GAPo2f8W dq7e0TbiltNQN9j5o3wKy+mn44++/Xxr5xlC/9lwBIBAPWLQ9oW3g3eARG8CKtW4ycc3 98OwemWEPfdSy1VcV9Exw5+8HAz4bFkmGFQbQ= MIME-Version: 1.0 Received: by 10.114.36.18 with SMTP id j18mr9641874waj.46.1280342858076; Wed, 28 Jul 2010 11:47:38 -0700 (PDT) Received: by 10.42.6.85 with HTTP; Wed, 28 Jul 2010 11:47:37 -0700 (PDT) In-Reply-To: <4C50796C.4070509@FreeBSD.org> References: <201007281953.53131.naylor.b.david@gmail.com> <4C50796C.4070509@FreeBSD.org> Date: Wed, 28 Jul 2010 11:47:37 -0700 Message-ID: From: Matthew Fleming To: David Naylor , "freebsd-current@freebsd.org" Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Cc: Subject: Re: Interrupt Problems 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: Wed, 28 Jul 2010 18:47:39 -0000 David Naylor wrote: > I have been having interrupt related problems with various subsystems. = =A0I > suspect this is related to the changes in the event timer infrastructure. > > The subsystems that have experienced interrupt problems: > =A0- hda: this is the easiest to reproduce and what I used to isolate the > commits. =A0I get ``pcm0: chn_write(): pcm0:virtual:dsp0.vp0: play interr= upt > timeout, channel dead'' reported and sound no longer plays. > =A0- nfe: this has happened on occasion with no reliable way to reproduce= . > ``watchdog timeouts'' are reported. =A0After this happens all network tra= ffic dies > and doing `ifconfig nfe0 down; ifconfig nfe0 up' panics the computer. > =A0- dc: same thing as above. > =A0- nvidia: has reported interrupt timeouts. =A0This is independent of t= he > locking problem (that is fixed with recently published patch). =A0No reli= able way > to reproduce, appears to happen when under heavy load. =A0X freezes as a = result. > =A0- ata: I had a HDD detach twice. =A0I am not sure if this is related. = =A0I have > two HDD, each attached to a different controller. > > I tested this by using a kernel built from a cvsup date of 2010/06/20 and > 2010/06/22 (at midnight for both, aka 00:00:00). =A0The former kernel doe= s not > exhibit any problems while the latter does. =A0This problem is also prese= nt with > a kernel from today. > > The motherboard is a N650SLI-DS4L with one graphics card. =A0See attached= for > more system information. > > Is there anything I can do to help diagnose the problem? When you say midnight on June 22, is that 11:59pm June 22 or 12:01 am June = 22? I don't expect it, but there's a possibility that r210377 affected this. Can you check whether sys/sys/_task.h changes between the kernel that does work and the one that doesn't? Thanks, matthew