From nobody Mon Sep 13 22:25:55 2021 X-Original-To: freebsd-current@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id BC1E817BC105 for ; Mon, 13 Sep 2021 22:25:59 +0000 (UTC) (envelope-from mad@madpilot.net) Received: from mail.madpilot.net (vogon.madpilot.net [159.69.1.99]) (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 did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4H7gzq4KVwz4V7G for ; Mon, 13 Sep 2021 22:25:59 +0000 (UTC) (envelope-from mad@madpilot.net) Received: from mail (mail [192.168.254.3]) by mail.madpilot.net (Postfix) with ESMTP id 4H7gzp4Yh4z6g1x; Tue, 14 Sep 2021 00:25:58 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=madpilot.net; h= content-transfer-encoding:content-language:content-type :content-type:in-reply-to:date:date:message-id:from:from :references:subject:subject:received; s=bjowvop61wgh; t= 1631571956; x=1633386357; bh=fSIpmhlQVaicHV35xb6cja4j8b+XccfCDio Pz0I01TQ=; b=KovdLoPvSSyjNJs5zDElVKT5tRAQ9jukLOMpe3DgX76QU6d1reZ EPw7ZKgw/WFLWny8p0WrDvekoJfQR9nyOJ7fxYVsso2s037kVnxlwYU/IexyWYdr +98dubUzNMLQ8rz7c2lEcgrNQC+GWbAH/zHxpq49YWZX1d3RKoa9gbRRqhirIk5v PYOO0RSJREbhYmvdCTyOtPLOoCs/inWJpsz/hVimx1JqMlf59RVP11FA98we3T9j Z4MHPPJI1NJf2ORFvl/mO3atjCyxftnZJdB18h14x+QUD9vQNuEet8C43Z+8UEd+ BBa/htThCH2RZKbmNbicPypAgpn7o0c6Gxw== Received: from mail.madpilot.net ([192.168.254.3]) by mail (mail.madpilot.net [192.168.254.3]) (amavisd-new, port 10026) with ESMTP id EzMYte65oTNI; Tue, 14 Sep 2021 00:25:56 +0200 (CEST) Subject: Re: recent head having significantly less "avail memory" To: Konstantin Belousov Cc: FreeBSD Current References: <4c990632-868a-2393-291b-fe7e2bc1974f@madpilot.net> <9e40483c-29e0-303a-eaa4-86d294403868@madpilot.net> Message-ID: Date: Tue, 14 Sep 2021 00:25:55 +0200 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4H7gzq4KVwz4V7G X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] Reply-To: mad@madpilot.net From: Guido Falsi via freebsd-current X-Original-From: Guido Falsi X-ThisMailContainsUnwantedMimeParts: N List-Id: Discussions about the use of FreeBSD-current List-Archive: https://lists.freebsd.org/archives/freebsd-current List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-current@freebsd.org On 14/09/21 00:12, Konstantin Belousov wrote: > On Mon, Sep 13, 2021 at 10:07:46PM +0200, Guido Falsi wrote: >> On 13/09/21 19:08, Konstantin Belousov wrote: >>> On Mon, Sep 13, 2021 at 02:59:25PM +0200, Guido Falsi via freebsd-current wrote: >>>> Hi, >>>> >>>> I updated head recently and today I noticed a difference which looks wrong. >>>> >>>> At boodt the new head shows signifcantly less avail memory than before, >>>> around 3 GiB less. >>>> >>>> I moved from commit 71fbc6faed6 [1] where I got: >>>> >>>> Aug 28 22:03:03 marvin kernel: real memory = 17179869184 (16384 MB) >>>> Aug 28 22:03:03 marvin kernel: avail memory = 16590352384 (15821 MB) >>>> >>>> to commit 7955efd574b [2] where I get: >>>> >>>> Sep 13 10:44:40 marvin kernel: real memory = 17179869184 (16384 MB) >>>> Sep 13 10:44:40 marvin kernel: avail memory = 13298876416 (12682 MB) >>>> >>>> I'm seeing this on multiple machines. >>>> >>>> Unluckily bisecting and trying an older loader.efi in sseparate tests did >>>> not give me any more insight. >>>> >>>> The recent changes to efi loader, starting with commit 6032b6ba9596 [3] look >>>> like a possible trigger to this, but I have been unable to confirm it. >>>> >>>> Any suggesstions on how to proceed to debug thiss? ANy idea what a fix could >>>> be? >>> >>> Is this UEFI or bios boot? >>> Provide verbose dmesg for old and new boots on the same machine. >>> For UEFI boot, show output of 'sysctl machdep.efi_map', again for old >>> and new boots. >>> >> >> I shared the data you request here: >> >> https://www.madpilot.net/cloud/s/ENW5zF7jfmrmFeG > > Thanks. > > If you do on the loader prompt for the new (AKA bad) kernel > copy_staging enable > and then boot, does the report of avail memory becomes good? > Yes, it works as expected, that is reports the amount of memory I expect: Sep 14 00:24:50 marvin kernel: real memory = 17179869184 (16384 MB) Sep 14 00:24:50 marvin kernel: avail memory = 16590356480 (15821 MB) -- Guido Falsi