Date: Tue, 21 Jun 2016 18:45:07 -0400 (EDT) From: Keith White <kwhite@site.uottawa.ca> To: Ian Lepore <ian@freebsd.org> Cc: =?ISO-8859-15?Q?Otac=EDlio?= <otacilio.neto@bsd.com.br>, Mark Millard <markmi@dsl-only.net>, freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: (beagleboneblack/urtwn) Kernel page fault with the following non-sleepable locks held [ssh on rpi2 comparison] Message-ID: <alpine.BSF.2.20.1606211844160.38944@localhost.my.domain> In-Reply-To: <1466531719.34556.72.camel@freebsd.org> References: <99277FB6-77EB-4D8B-8A55-FBD622D29AC3@dsl-only.net> <alpine.BSF.2.20.1606210626320.52002@localhost.my.domain> <22fe5f7f-6153-e092-c410-eddb1431a78a@bsd.com.br> <1466531719.34556.72.camel@freebsd.org>
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On Tue, 21 Jun 2016, Ian Lepore wrote: > On Tue, 2016-06-21 at 08:11 -0300, Otacílio wrote: >> Em 21/06/2016 07:33, Keith White escreveu: >>> In an earlier message Ian said that he thought he knew what the >>> problem was... >> >> Here the problem occurs when using wifi. I do not have tested wired >> because I don't have a cable here. >> >> >> []'s >> >> -Otacilio > > The wifi alignment fault should be fixed as of r302064. Sorry it took > so long. > > -- Ian Many thanks Ian! Yes, this has fixed the problem. No more panics on ssh to rpi-b. ...keith From owner-freebsd-arm@freebsd.org Tue Jun 21 23:13:59 2016 Return-Path: <owner-freebsd-arm@freebsd.org> Delivered-To: freebsd-arm@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4951BAC4752 for <freebsd-arm@mailman.ysv.freebsd.org>; Tue, 21 Jun 2016 23:13:59 +0000 (UTC) (envelope-from ian@freebsd.org) Received: from outbound1b.ore.mailhop.org (outbound1b.ore.mailhop.org [54.200.247.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 0FBB42C2E for <freebsd-arm@freebsd.org>; Tue, 21 Jun 2016 23:13:58 +0000 (UTC) (envelope-from ian@freebsd.org) X-MHO-User: e0ae30ae-3805-11e6-a0ff-e511cd071b9b X-Report-Abuse-To: https://support.duocircle.com/support/solutions/articles/5000540958-duocircle-standard-smtp-abuse-information X-Originating-IP: 73.34.117.227 X-Mail-Handler: DuoCircle Outbound SMTP Received: from ilsoft.org (unknown [73.34.117.227]) by outbound1.ore.mailhop.org (Halon Mail Gateway) with ESMTPSA; Tue, 21 Jun 2016 23:14:17 +0000 (UTC) Received: from rev (rev [172.22.42.240]) by ilsoft.org (8.15.2/8.14.9) with ESMTP id u5LNDoxg006862; Tue, 21 Jun 2016 17:13:50 -0600 (MDT) (envelope-from ian@freebsd.org) Message-ID: <1466550830.34556.73.camel@freebsd.org> Subject: Re: (beagleboneblack/urtwn) Kernel page fault with the following non-sleepable locks held [ssh on rpi2 comparison] From: Ian Lepore <ian@freebsd.org> To: Mark Millard <markmi@dsl-only.net>, freebsd-arm <freebsd-arm@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Cc: FreeBSD Toolchain <freebsd-toolchain@freebsd.org> Date: Tue, 21 Jun 2016 17:13:50 -0600 In-Reply-To: <C7EFF9F0-7BA3-4E95-9CCF-5805295F76B3@dsl-only.net> References: <C7EFF9F0-7BA3-4E95-9CCF-5805295F76B3@dsl-only.net> Content-Type: text/plain; charset="ISO-8859-1" X-Mailer: Evolution 3.16.5 FreeBSD GNOME Team Port Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: "Porting FreeBSD to ARM processors." <freebsd-arm.freebsd.org> List-Unsubscribe: <https://lists.freebsd.org/mailman/options/freebsd-arm>, <mailto:freebsd-arm-request@freebsd.org?subject=unsubscribe> List-Archive: <http://lists.freebsd.org/pipermail/freebsd-arm/>; List-Post: <mailto:freebsd-arm@freebsd.org> List-Help: <mailto:freebsd-arm-request@freebsd.org?subject=help> List-Subscribe: <https://lists.freebsd.org/mailman/listinfo/freebsd-arm>, <mailto:freebsd-arm-request@freebsd.org?subject=subscribe> X-List-Received-Date: Tue, 21 Jun 2016 23:13:59 -0000 On Tue, 2016-06-21 at 15:30 -0700, Mark Millard wrote: > Ian Lepore ian at freebsd.org wrote on Tue Jun 21 17:55:28 UTC 2016 > : > > > On Tue, 2016-06-21 at 08:11 -0300, Otacílio wrote: > > > Em 21/06/2016 07:33, Keith White escreveu: > > > > In an earlier message Ian said that he thought he knew what the > > > > problem was... > > > > > > Here the problem occurs when using wifi. I do not have tested > > > wired > > > because I don't have a cable here. > > > > > > > > > []'s > > > > > > -Otacilio > > > > The wifi alignment fault should be fixed as of r302064. Sorry it > > took > > so long. > > > > -- Ian > > > > FYI: I've not had any -r301975 problems with WiFi on my rpi2. > > But I cross build for TARGET_ARCH=armv6 with: > > > XCFLAGS+= -march=armv7-a -mcpu=cortex-a7 > > XCXXFLAGS+= -march=armv7-a -mcpu=cortex-a7 > > (And similarly for self-hosted.) It may be that the -march and/or > -mcpu matter to the code generation and explain my lack of problems. > > The builds also have INVARIANTS and WITNESS off. > > === > Mark Millard > markmi at dsl-only.net INVARIANTS being on was one of the things required to trigger the alignment fault. -- Ian
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