From owner-freebsd-arm@freebsd.org Tue Oct 8 17:36:37 2019 Return-Path: Delivered-To: freebsd-arm@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 54042131A1C for ; Tue, 8 Oct 2019 17:36:37 +0000 (UTC) (envelope-from ian@freebsd.org) Received: from outbound3d.ore.mailhop.org (outbound3d.ore.mailhop.org [54.186.57.195]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 46nkzm6cRZz4J5b for ; Tue, 8 Oct 2019 17:36:36 +0000 (UTC) (envelope-from ian@freebsd.org) ARC-Seal: i=1; a=rsa-sha256; t=1570556195; cv=none; d=outbound.mailhop.org; s=arc-outbound20181012; b=UWJPOneFSMONbD4mmsFfg61IDfx/uIUjkYYKnbm9rOaTNVSYQr1C9n4zlZxfcGb+pS1eDrmEEZ4fO Dg80KGcr9r1ol9Hstio3jiZZLX/P/TR29ZUU4KAe3/A8EDugAnqYM2vRCRSTU2T4eBf8cnWdipUVtK K/NFE9mvtKMW6DaKFGXE7IhnaBm71+2p7DUJ6DqVvNr6/g9TuafSW5cVbwRjCEXUoZVrjff3DjyhCm 06TJ42qeZhPVlg29Btw6oAZgy09D3k+iduS74zYedMbYBBJ8Y+Efx05Z2tATWNew8BOHdzdud0NAnF bENP+wr3Nl4s6zuYvbMFhqT+d7YE9jg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=outbound.mailhop.org; s=arc-outbound20181012; h=content-transfer-encoding:mime-version:content-type:references:in-reply-to: date:to:from:subject:message-id:dkim-signature:from; bh=tESPiNW1yVOTI3RLJYgQfYXXy4c59ivP67V2j1UPLnE=; b=Vhncr0znlgNTDLHi+KrjD1pcBk3s1ji2x/I04QeIJMcl4dxN1+WzLwh1dLpwTpv0e1JS0hdktVmft DzXsORAv8vvof6x28QsioVdjjRn3q875M6CyYy1z7FtED8rWYn4oJm03ht9Qbe6bir0txGr5xQ+ZGp 2/4KhuD9wGfgqBywYh2yhdhCju+J4I21xgHXK+aiBtIdOLIQ2KHEt5/687zS6aGYmFBOQWw+yPmjer Q1EqFqcJ3m+zFCzIVN95a8EdRf7AZZ8GmON9qeEtamccFrEVM53TjF6+NVuE9tLGawJBOQjKmk5DNR zRxa73wRfSUbcwNeRbNVfhQcUaBajRw== ARC-Authentication-Results: i=1; outbound3.ore.mailhop.org; spf=softfail smtp.mailfrom=freebsd.org smtp.remote-ip=67.177.211.60; dmarc=none header.from=freebsd.org; arc=none header.oldest-pass=0; DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=outbound.mailhop.org; s=dkim-high; h=content-transfer-encoding:mime-version:content-type:references:in-reply-to: date:to:from:subject:message-id:from; bh=tESPiNW1yVOTI3RLJYgQfYXXy4c59ivP67V2j1UPLnE=; b=kgFjWbb08omEA2NZ8tmrNLgFY1DTxFjL6ScOKgQwxbGDr21LkuP45WLWsm3x3hZy4orAG0SOlfqMe JnoZSbONjzNEXZxhzHSXz9n1RCEnLR09QybBxnwDGYQwFrrWUsrdYCrQbpndj9FrZo3yJ2Z6LiHM0i 76Jt8kV5pCrEx9fd/dUeNHXoqUsVTEYv99lXKDS9Bh6bSWIrMpVG6RdTcPl6E80Wr8xcKod0Cd/1K4 dTmfoKmsMUySAJgOVSDjZpGhpclc6Baz4HyIQ9cQozmK/W67AETYlagr8HkIrUZu/pwHl2CY7nIaTY uIvPephDYr3qw4jTjYasAEdoZmnMvrQ== X-MHO-RoutePath: aGlwcGll X-MHO-User: 2b16bef0-e9f2-11e9-955f-dfabc1efb494 X-Report-Abuse-To: https://support.duocircle.com/support/solutions/articles/5000540958-duocircle-standard-smtp-abuse-information X-Originating-IP: 67.177.211.60 X-Mail-Handler: DuoCircle Outbound SMTP Received: from ilsoft.org (unknown [67.177.211.60]) by outbound3.ore.mailhop.org (Halon) with ESMTPSA id 2b16bef0-e9f2-11e9-955f-dfabc1efb494; Tue, 08 Oct 2019 17:36:34 +0000 (UTC) Received: from rev (rev [172.22.42.240]) by ilsoft.org (8.15.2/8.15.2) with ESMTP id x98HaWSU083303; Tue, 8 Oct 2019 11:36:32 -0600 (MDT) (envelope-from ian@freebsd.org) Message-ID: Subject: Re: FreeBSD 12.1-BETA3 won't boot on Beaglebone Black From: Ian Lepore To: freebsd-arm@freebsd.org, Mike Karels Date: Tue, 08 Oct 2019 11:36:32 -0600 In-Reply-To: <20191008171225.GW27491@FreeBSD.org> References: <20191007093947.69ae5d772ebedfc1e1c98328@bidouilliste.com> <201910080102.x98127Jk048407@mail.karels.net> <20191008153417.GQ27491@FreeBSD.org> <20191008170405.GA18428@lonesome.com> <20191008171225.GW27491@FreeBSD.org> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.5 FreeBSD GNOME Team Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 46nkzm6cRZz4J5b X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-1.89 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_HAM_MEDIUM(-0.89)[-0.887,0]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; ASN(0.00)[asn:16509, ipnet:54.186.0.0/15, country:US] X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Oct 2019 17:36:37 -0000 On Tue, 2019-10-08 at 17:12 +0000, Glen Barber wrote: > On Tue, Oct 08, 2019 at 05:04:06PM +0000, Mark Linimon wrote: > > On Tue, Oct 08, 2019 at 03:34:17PM +0000, Glen Barber wrote: > > > I have seen issues with some SD cards on a few different SoCs > > > where > > > certain classes (i.e., 4) are too slow for some boards, and > > > higher > > > classes (i.e., 10) are too fast for others. > > > > ew. We should document this somewhere. The potential for users > > shooting themselves in the feet is too high. > > > > The "problem" with documenting this (or, at least me documenting it) > is > I have seen very inconsistent behavior. But if someone(tm) can > reliably > reproduce test cases with various SD card classes, yes, I agree it is > something that would be highly beneficial to have documented. > > Glen > The problem this mail thread is talking about has nothing to do with sd cards, sd card classes or anything vaguely related to that, because it's about the eMMC on the board, not sd cards. I personally believe this whole sd card classes thing is a red herring. Some cards work better than others in noisy-signal environments. That has nothing to do with card classes. I also see people blame manufacturers or brands inappropriately. When there is a reproducible problem at all, it tends to be with a specific model of card, but in my experience, even that is very rare. -- Ian