From owner-freebsd-stable@FreeBSD.ORG Tue Jan 5 23:10:21 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9264D106568F for ; Tue, 5 Jan 2010 23:10:21 +0000 (UTC) (envelope-from freebsd-stable@m.gmane.org) Received: from lo.gmane.org (lo.gmane.org [80.91.229.12]) by mx1.freebsd.org (Postfix) with ESMTP id 155FA8FC16 for ; Tue, 5 Jan 2010 23:10:21 +0000 (UTC) Received: from list by lo.gmane.org with local (Exim 4.50) id 1NSIXa-00085P-K0 for freebsd-stable@freebsd.org; Wed, 06 Jan 2010 00:10:18 +0100 Received: from 200.41.broadband11.iol.cz ([90.178.41.200]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 06 Jan 2010 00:10:18 +0100 Received: from gamato by 200.41.broadband11.iol.cz with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Wed, 06 Jan 2010 00:10:18 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: freebsd-stable@freebsd.org From: martinko Date: Wed, 06 Jan 2010 00:09:54 +0100 Lines: 60 Message-ID: References: <20100104171154.GE86359@bunrab.catwhisker.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-2; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: usenet@ger.gmane.org X-Gmane-NNTP-Posting-Host: 200.41.broadband11.iol.cz User-Agent: Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.9.1.6) Gecko/20100102 SeaMonkey/2.0.1 In-Reply-To: <20100104171154.GE86359@bunrab.catwhisker.org> Sender: news Cc: freebsd-current@freebsd.org Subject: Re: 8.0 regression: consecutive panics (iwi / wlan / zfs ?) X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 05 Jan 2010 23:10:21 -0000 David Wolfskill wrote: > On Mon, Jan 04, 2010 at 04:13:36PM +0100, martinko wrote: >> ... >> >> I have used versions 5.3 to 6.4 on this laptop, the last one being the >> most stable and smooth. A few weeks ago I moved to 8.0 (fresh install) >> and since then I've been experiencing funny issues. >> >> Last night I was writing an email when I noticed my wi-fi link was gone. >> I checked /var/log/messages and saw the following: >> >> wlan0: link state changed to DOWN >> wlan0: link state changed to UP >> wlan0: link state changed to DOWN >> wlan0: link state changed to UP >> wlan0: link state changed to DOWN >> wlan0: link state changed to UP >> ... > > While I do not currently use ZFS, the wireless NIC I have been using > most often for the last several months has been iwi0 on my laptop, on > which I track stable/6, stable/7, stable/8, and head on a daily basis. > > While I have seen the interface bounce dwn& up repeatedly, and it > refuses to communicate with an Apple Airport AP (while working with > a Linksys WAP11) under head (but the Airport is OK for stable/6 and > stable/7; not sure about stable/8), it has been (at least) several > weeks since my last panic, so I am inclined to suggest that iwi(4) > and wlan(4) are unlikely to be involved in the root cause of the > panic. Well, the panic points at iwi (see my screenshot pls). And there are other wifi regressions I've already noticed. On 6.x I had 2 issues with iwi: Interface was changing down and up especially when signal was weaker. And there was the dreaded scan stuck. Sometimes the only help was to reboot the machine. On 8.0 I haven't noticed scan stuck and down&up happens a lot less. But I guess this is due to newer iwi firmware (3.1 vs 3.0). On the other hand wireless interface is too slow to associate during boot and I'm seeing connection errors from e.g. ntpd. Also the following began appearing in the system log: kernel: iwi0: need multicast update callback And there have been other issues posted to the lists in last weeks. I'd love these to be fixed and I'm willing to help investigate. Regards, Martin PS: I had the same panic today. After reboot I kept losing connection after short time. Restarting AP didn't help. I switched laptop off&on and it's running happily since (uptime 10h). Really weird.