From owner-freebsd-arm@freebsd.org Fri Sep 25 09:33:41 2020 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 C73173F0C6F for ; Fri, 25 Sep 2020 09:33:41 +0000 (UTC) (envelope-from gjb@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [96.47.72.132]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4ByRYd4skTz4txV; Fri, 25 Sep 2020 09:33:41 +0000 (UTC) (envelope-from gjb@freebsd.org) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1601026421; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=quGVTtjixWmhe6klb4A2NgUuOTBuOZ32D6DO/Y699iU=; b=FtoywSt5Ko75Yi77xRKznlonflDuAMO+2jlpRjQ/uAIFpWro1w780cs7OmAtSs7byBJi3o zZz9ea5kb7Iw8eIi+06YQ0NsbGiwhQ9q5RsDjw8F+D6Uu4lcf6rTkmVbRziT/3clENgWeH gwnSyXDS5JoOk9twJf4dmvLVsA2DmNYjFhnk/PtHau0dDASPdHclbltpeNiDgPLiOcrmfD ivr6X+uH/d7lnP2CRoYdlIUX+oJxleK5vmGa6QM2yBhA16IvrW16XojO3NKQA61BfNLTr/ dVtC5BnXvl1hBcK8VybNkBXWYIkMmgHc+QQoNjWIiebNwxlxg+fmyGrWDKLDPw== Received: from FreeBSD.org (freefall.freebsd.org [IPv6:2610:1c1:1:6074::16:84]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by freefall.freebsd.org (Postfix) with ESMTPS id 2D0A616067; Fri, 25 Sep 2020 09:33:41 +0000 (UTC) (envelope-from gjb@freebsd.org) Date: Fri, 25 Sep 2020 09:33:34 +0000 From: Glen Barber To: Mike Karels Cc: Ed Maste , "freebsd-arm@freebsd.org" , FreeBSD Release Engineering Team Subject: Re: clock problems with BeagleBone Black on 12.2BETA2 Message-ID: <20200925093334.GH60607@FreeBSD.org> References: <20200925003347.GG60607@FreeBSD.org> <202009250507.08P573Bh045283@mail.karels.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="hKnd/qOzIOdPs36Y" Content-Disposition: inline In-Reply-To: <202009250507.08P573Bh045283@mail.karels.net> ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1601026421; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=quGVTtjixWmhe6klb4A2NgUuOTBuOZ32D6DO/Y699iU=; b=y45UjP9m65zG0SnfDX9fvakUU7XpdG/rvHX6X47AIoiNDVLpSwI9y1nmHJSprfweKL5Yhd 5n+G0FFuB0MAMI1DC/umT9pekSHyA7Y1yxx/hMo60Ci0DFUll+mkt20ykxLDQPnfJ2Ocuy s7/HhjN6sPLEcMOH6W1B5uFOeFzY7wuI7K3N8o7LPSMRU+FoktBWgM0/746RMzkPTzWdq1 24DJq+9KJTVcGv3E54gBaOw89atS0ZE45+8Rvtet31EvJ4vRYoLCMkSbFDFcRDbZBjVxuH 3d2s1GXiGXVLTyonUpnaDxFdUp7tc8iKzjfVe61UJe8DDsLy8xz+EoR1IEN6cw== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1601026421; a=rsa-sha256; cv=none; b=STAKeZGdVbW5/BpoBcdWun3V7823Zg8dWIuPZ9RIuKGXFRlP0LntaaxbN2C7ENPil9+Dnp xAo5gRA8lvJtDRe0s7vWpzFS9StDoTPjdaF2++RdDZgo4VT6jaGf7fMW2OSCyfxAV12SBj mYVZHniRa0bAyM/tqWXkXGtdfl1SDU3NxdNxo3OOfvk9mjzDZttP4yhxjxGLr2/8lvm4b1 XbsxZ3M4MiPcOW0coaBU0Yadj0KXDNvROh5NqnM10oYjnmIT24p5FKPsrhDPseMtBhtYxP oqakHSK1ZuCINTRhQVc318LiF11k6Lom/Qa8cOyDXA7+G00aLIZH53j/MAXFlQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-BeenThere: freebsd-arm@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: "Porting FreeBSD to ARM processors." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Sep 2020 09:33:41 -0000 --hKnd/qOzIOdPs36Y Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 25, 2020 at 12:07:03AM -0500, Mike Karels wrote: > > Date: Fri, 25 Sep 2020 00:33:47 +0000 > > From: Glen Barber >=20 > > On Thu, Sep 24, 2020 at 06:04:58PM -0400, Ed Maste wrote: > > > On Tue, 22 Sep 2020 at 14:09, Mike Karels wrote: > > > > > > > > I just installed 12.2BETA2 on a BeagleBone Black (armv7), and it to= ok > > > > at least an hour. I hit ^T periodically, and time seemed screwed up > > > > (real time was progressing slowly at best). > > > > > > I've independently confirmed this on the 12.2BETA2 image; from my con= sole: > > > ... > > > FreeBSD 12.2-BETA2 r365865 GENERIC arm > > > ... > > > Trying to mount root from ufs:/dev/ufs/rootfs [rw]... > > > Warning: no time-of-day clock registered, system time will not be set= acc=3D > > urately > > > Growing root partition to fill device > > > random: read_random_uio unblock wait > > > load: 1.28 cmd: awk 39 [piperd] 0.12r 0.00u 0.00s 0% 2060k > > > load: 1.28 cmd: awk 39 [piperd] 0.14r 0.00u 0.00s 0% 2060k > > > ... > > > > > > time seems to be running about 500x slow. > > > > > > I ^C'd each startup script that was stuck (I'm not as patient as > > > Mike), and got to a login prompt. I was able to login as root just > > > fine and the system seemed responsive for commands that don't sleep. I > > > tried `sleep 0.01` and that took about 5 seconds of actual time. > > > >=20 > > Given the 1 second =3D 5 seconds info, does it eventually finish, or ha= ve > > you just killed the power to it before getting that far? >=20 > In my case, it finished, but took at least an hour. It may have taken > longer if I didn't hit ^T periodically, e.g. I think that helped seed > entropy. But according to Ed's measurement, it is closer to 1 second =3D > 500 seconds. >=20 Err, sorry, I misread part of Ed's email, and 1 second =3D 500 seconds is what he seems to report as well. 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