From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4EB6DC433EF for ; Mon, 11 Oct 2021 06:58:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E2AC60EFE for ; Mon, 11 Oct 2021 06:58:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234377AbhJKHAy (ORCPT ); Mon, 11 Oct 2021 03:00:54 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:13976 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233148AbhJKHAw (ORCPT ); Mon, 11 Oct 2021 03:00:52 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1633935533; h=Content-Transfer-Encoding: Content-Type: In-Reply-To: MIME-Version: Date: Message-ID: From: References: Cc: To: Subject: Sender; bh=k8tTotxLDJjjEVEHtHiSBd970P+txsfK0O5LCyddwGA=; b=os8EaaJtmxZFSBJywxqkRTEo/z2V/uHveCqMv60VnAdP8Wpg4WHIhFu+6rh0jmhUtmDWNANE TWjqlrIEMfnG6TCxGRxetZWWVsVrAVyz3gzqe8q9nLpm39DAuRyZ4rtTv2SiPALUbsex7mxw yyEg496MXx1FQP7zzoCUSgO4IXw= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyI0MWYwYSIsICJsaW51eC1rZXJuZWxAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n01.prod.us-west-2.postgun.com with SMTP id 6163e0ac03355859c84530bb (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Mon, 11 Oct 2021 06:58:52 GMT Sender: faiyazm=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 82857C43619; Mon, 11 Oct 2021 06:58:52 +0000 (UTC) Received: from [192.168.0.109] (unknown [49.204.182.166]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: faiyazm) by smtp.codeaurora.org (Postfix) with ESMTPSA id DBBD2C4338F; Mon, 11 Oct 2021 06:58:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org DBBD2C4338F Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org Subject: Re: [PATCH v2] mm: page_alloc: Add debug log in free_reserved_area for static memory To: Faiyaz Mohammed , akpm@linux-foundation.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, david@redhat.com Cc: guptap@codeaurora.org References: <1633935350-19628-1-git-send-email-quic_faiyazm@codeaurora.org> From: Faiyaz Mohammed Message-ID: <5a744f0b-1283-7fe1-ee5a-c87ca6d10b0a@codeaurora.org> Date: Mon, 11 Oct 2021 12:28:45 +0530 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <1633935350-19628-1-git-send-email-quic_faiyazm@codeaurora.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Please ignore this patch. On 10/11/2021 12:25 PM, Faiyaz Mohammed wrote: > From: Faiyaz Mohammed > > For INITRD and initmem memory is reserved through "memblock_reserve" > during boot up but it is free via "free_reserved_area" instead > of "memblock_free". > For example: > [ 0.294848] Freeing initrd memory: 12K. > [ 0.696688] Freeing unused kernel memory: 4096K. > > To get the start and end address of the above freed memory and to account > proper memblock added pr_debug log in "free_reserved_area". > After adding log: > [ 0.294837] 0x00000083600000-0x00000083603000 free_initrd_mem+0x20/0x28 > [ 0.294848] Freeing initrd memory: 12K. > [ 0.695246] 0x00000081600000-0x00000081a00000 free_initmem+0x70/0xc8 > [ 0.696688] Freeing unused kernel memory: 4096K. > > Signed-off-by: Faiyaz Mohammed > --- > mm/page_alloc.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index 668edb1..8a1929d4 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -8153,6 +8153,11 @@ unsigned long free_reserved_area(void *start, void *end, int poison, const char > if (pages && s) > pr_info("Freeing %s memory: %ldK\n", s, K(pages)); > > +#ifdef CONFIG_HAVE_MEMBLOCK > + memblock_dbg("memblock_free: [%#016llx-%#016llx] %pS\n", > + __pa(start), __pa(end), (void *)_RET_IP_); > +#endif > + > return pages; > } > >