From owner-freebsd-arm@freebsd.org Tue Nov 26 22:48:58 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 529DF1C3B3A for ; Tue, 26 Nov 2019 22:48:58 +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 47MzbZ0ySSz4MLs for ; Tue, 26 Nov 2019 22:48:57 +0000 (UTC) (envelope-from ian@freebsd.org) ARC-Seal: i=1; a=rsa-sha256; t=1574808537; cv=none; d=outbound.mailhop.org; s=arc-outbound20181012; b=uHY07JZyWSVBKPyELTGcAvg+4uBWLemF+8OIovEnvcZMIXRjsdzrB7rmbWVn4ZwGgBqoaNOTPc07E 0UTG4xLOUBfJuaxXlKII5N8/IpN1EQSBkHGtRxXb4YJ2UTRv/AecD3yqD2cVmm2qB7EIrqg8KczwNW GHWF8c9Op4tlir0DuIm++LEZZYUhurX6qJPnViI9qe0rm+AWVoo5TgIXBU+Hd7vjCMmXbg6h8VUUw+ hVUOPY7SZT/nH3nHutGKup2ZnUfaXZeDEj9LynC8IqU0yea+Dm+svXPs4hvwvBNkFGhFSRgGZPYy96 Z0IN4uiGULmw7MxFXK1q8giV7sM5E4A== 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:cc:to:from:subject:message-id:dkim-signature:from; bh=WlQqNagNK3WOurQNEnjIY+NJ2/eeHMIfU7xXj+D2TSE=; b=nwZvng/sWkGDapRRva+xFo7kHLWQCSxpQHZQ8VusFnvIM62NuMXjCPqUCeAChLTHNhH9UkivuPcWY p5Bm1LSSIIn45vGsVpwB28x95B7wG1ge3rewYk2sT+BBZ8ELe93hDvw6WeP2o1bGS15+Oa+sbeku3f GZxAG6hqvtrseZPjl5h3T+/+NtZp5n2hXIGyIP/vXLzYQv3HqN29ZjVY8TwbtEVplIbZhihW6Zx3CD DGYaQntkoib1EgTBAdTkF1DFc1KB7DxJTRmR0sHk5yl1Uuu7/TTh1c+NfGIVEk5EaM0xqAf0ow2xDM EFu+qLAWjEJVSUdDUXz8D+we+vT7FBA== 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:cc:to:from:subject:message-id:from; bh=WlQqNagNK3WOurQNEnjIY+NJ2/eeHMIfU7xXj+D2TSE=; b=kUiON4GNyzVq5NO+nyNsdUxS8rxKT9phtAB4k8DxANJRnFpS7accltgdEXymhsk32GdQoil1WRNln VFyr3ObAdYPe95ioT5IsGb63oq3rltNt0K7pLEczs4aFba82gJjh7AR9iaRq3WYkQ5hqIQSBx8MtFy 6YyzEMTUeClH+NXIUi/qCoPcC55coDiuX6RWphqNSOmEuAojaEj83fE1jUyIQQM/J+CDUXposfvKw6 uGccGyUMzl1G+8d/+NaaLy/gXInr6W5kiyT/7CKcDE7D012h3WSEGo4N+RAWF73KK9mTke9opAl+8g sT9F5xK1eyZKCaggkLy8NPRn1/ERF2A== X-MHO-RoutePath: aGlwcGll X-MHO-User: eca88b85-109e-11ea-b80c-052b4a66b6b2 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 eca88b85-109e-11ea-b80c-052b4a66b6b2; Tue, 26 Nov 2019 22:48:56 +0000 (UTC) Received: from rev (rev [172.22.42.240]) by ilsoft.org (8.15.2/8.15.2) with ESMTP id xAQMmsDf074057; Tue, 26 Nov 2019 15:48:54 -0700 (MST) (envelope-from ian@freebsd.org) Message-ID: <486c0bc46deeefb8338f50fe6dfdf7951786e56c.camel@freebsd.org> Subject: Re: rpi3 clock drift From: Ian Lepore To: James Shuriff , Bakul Shah Cc: "freebsd-arm@freebsd.org" Date: Tue, 26 Nov 2019 15:48:54 -0700 In-Reply-To: References: 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: 47MzbZ0ySSz4MLs X-Spamd-Bar: - Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-1.73 / 15.00]; local_wl_from(0.00)[freebsd.org]; NEURAL_HAM_MEDIUM(-0.87)[-0.872,0]; NEURAL_HAM_LONG(-0.86)[-0.858,0]; 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, 26 Nov 2019 22:48:58 -0000 On Tue, 2019-11-26 at 22:34 +0000, James Shuriff wrote: > kern.timecounter.tc.ARM MPCore Timecounter.frequency: 54000000 54 MHz seems like a very strange frequency for a clock in an arm system. Of course, everything about an RPi seems to be strange and non-standard. Can someone else with an rpi3 (which keeps good time) confirm that that's the usual number? -- Ian