From owner-freebsd-xen@FreeBSD.ORG Thu May 28 04:41:35 2015 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 90C82BDC for ; Thu, 28 May 2015 04:41:35 +0000 (UTC) (envelope-from miguelmclara@gmail.com) Received: from mail-wi0-x236.google.com (mail-wi0-x236.google.com [IPv6:2a00:1450:400c:c05::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 24300FFA for ; Thu, 28 May 2015 04:41:35 +0000 (UTC) (envelope-from miguelmclara@gmail.com) Received: by wicmx19 with SMTP id mx19so132608896wic.0 for ; Wed, 27 May 2015 21:41:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=in-reply-to:references:mime-version:content-type :content-transfer-encoding:subject:from:date:to:cc:message-id; bh=cJ1nZ8Z385QOTqOaKgM85gyAotnZOoSl8ydXNg54TmQ=; b=BBFP8hBH6kSZJP9bnTgfj69yzVT6EDW9wnqNkXDwuc/5U2mwYITdrQYIcZA9j3+XZn vC1I/KeTRweva1v/3bu5wcSfsUTS/7Xw637coaPi0XcKJxQDFHSleHDgws4uT2hGslNy C2ZJ4dh54HcvSeIgotKQH5nRYJX9uVRdTy1u/vI9SnaSw0oTqmwfF2lVGE/PKZf57Ziv fn6hliiNxAiVXu3JXWfnFeZ4qydeYLaL5Fwvl19pFHuPdPRFGDDIZ3o8e7OZZEkpO/g/ 9frPgpaCo2eT/uKKX/YpAP1OZSgyMxZxc3+hOYgKZgpBNgLDLLEnzqBqGd82VI3ut4ap 04Ng== X-Received: by 10.194.85.116 with SMTP id g20mr1521646wjz.154.1432788093661; Wed, 27 May 2015 21:41:33 -0700 (PDT) Received: from ?IPv6:2001:818:da24:5500:4d3c:e160:c4c6:a9df? ([2001:818:da24:5500:4d3c:e160:c4c6:a9df]) by mx.google.com with ESMTPSA id bg4sm1385779wjc.10.2015.05.27.21.41.32 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 27 May 2015 21:41:32 -0700 (PDT) In-Reply-To: References: MIME-Version: 1.0 Subject: Re: Kernel Panic on 10.1 distribution From: Miguel Clara Date: Thu, 28 May 2015 04:41:29 +0000 To: Dean Anderson CC: freebsd-xen@freebsd.org Message-ID: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 May 2015 04:41:35 -0000 I've reported it ages ago when 10 was on 'CURRENT', but it seems there's were never resources (people with the knowledge) available to look into the issue. See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=188369 I've reported it months before on the xen-devel list too, but IIRC that's where the most recent info is... Sadly all I could do was test and report my findings, but it seems something changed regarding tso or checksum in the netfront code or even elsewhere, I honestly have no idea, but I found a very similar issue on windows guests running on netbsd hosts cause the PV drivers were assuming features the netbsd backend doesn't have. My theory is freebsd 10 as a similar issue, in my findings disabling tso/checksum stops the panic but I still had no network. Anyway if interested I guess all info is in the PR. I do hope this gets attention and maybe someone has the knowledge/time to fix it. On May 28, 2015 5:03:56 AM GMT+01:00, Dean Anderson wrote: >Yes. Is that a known problem? > >On Thu, 28 May 2015, Miguel Clara wrote: > >> >> Is this on a NetBSD dom0? >> >> >> On May 28, 2015 4:52:56 AM GMT+01:00, Dean Anderson >wrote: >> >> The 10.1 distribution, fresh install, immediately panics on any >ssh/scp >> in or out. It was running as an hvm under Xen 4.2.5. >> I'd send you more but its too hard to get a dump from the system, and >it >> appears pretty easy to reproduce. Good luck. >> --Dean >> >________________________________________________________________________________________________________________________________________________________________________________________________________ >> freebsd-xen@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-xen >> To unsubscribe, send any mail to >"freebsd-xen-unsubscribe@freebsd.org" >> >> >> -- >> Sent from my Android device with K-9 Mail. Please excuse my brevity. >> -- Sent from my Android device with K-9 Mail. Please excuse my brevity. From owner-freebsd-xen@FreeBSD.ORG Fri May 29 01:24:49 2015 Return-Path: Delivered-To: freebsd-xen@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 8871FB4 for ; Fri, 29 May 2015 01:24:49 +0000 (UTC) (envelope-from dean@av8.net) Received: from pobox2.av8.net (pobox2.av8.net [198.3.140.51]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 51651171C for ; Fri, 29 May 2015 01:24:48 +0000 (UTC) (envelope-from dean@av8.net) Received: from citation3.av8.net (citation3.av8.net [198.3.138.4]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by pobox2.av8.net (Postfix) with ESMTPSA id D9392B53C; Thu, 28 May 2015 21:24:53 -0400 (EDT) Date: Thu, 28 May 2015 21:24:38 -0400 (EDT) From: Dean Anderson X-X-Sender: dean@citation3 To: Miguel Clara cc: Dean Anderson , freebsd-xen@freebsd.org Subject: Re: Kernel Panic on 10.1 distribution In-Reply-To: Message-ID: References: User-Agent: Alpine 2.00 (DEB 1167 2008-08-23) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 May 2015 01:24:49 -0000 Hmm. That's too bad. Thanks for the info. On Thu, 28 May 2015, Miguel Clara wrote: > I've reported it ages ago when 10 was on 'CURRENT', but it seems there's were never resources (people with the knowledge) available to look into the issue. > > See: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=188369 > > I've reported it months before on the xen-devel list too, but IIRC that's where the most recent info is... > > Sadly all I could do was test and report my findings, but it seems something changed regarding tso or checksum in the netfront code or even elsewhere, I honestly have no idea, but I found a very > similar issue on windows guests running on netbsd hosts cause the PV drivers were assuming features the netbsd backend doesn't have. > > My theory is freebsd 10 as a similar issue, in my findings disabling tso/checksum stops the panic but I still had no network. > > Anyway if interested I guess all info is in the PR. > > I do hope this gets attention and maybe someone has the knowledge/time to fix it. > > On May 28, 2015 5:03:56 AM GMT+01:00, Dean Anderson wrote: > > Yes. Is that a known problem? > On Thu, 28 May 2015, Miguel Clara wrote: > > Is this on a NetBSD dom0? > > > On May 28, 2015 4:52:56 AM GMT+01:00, Dean Anderson wrote: > > The 10.1 distribution, fresh install, immediately panics on any ssh/scp > in or out. It was running as an hvm under Xen 4.2.5. > I'd send you more but its too hard to get a dump from the system, and it > appears pretty easy to reproduce. Good luck. > --Dean > ________________________________________________________________________________________________________________________________________________________________________________________________________ > freebsd-xen@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-xen > To unsubscribe, send any mail to "freebsd-xen-unsubscribe@freebsd.org" > > > -- > Sent from my Android device with K-9 Mail. > Please > excuse my brevity. > > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. >