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 X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8E4DEC433ED for ; Wed, 7 Apr 2021 12:54:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 678EE6113A for ; Wed, 7 Apr 2021 12:54:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1352501AbhDGMyp (ORCPT ); Wed, 7 Apr 2021 08:54:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55236 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1352492AbhDGMyh (ORCPT ); Wed, 7 Apr 2021 08:54:37 -0400 Received: from mail-wr1-x42b.google.com (mail-wr1-x42b.google.com [IPv6:2a00:1450:4864:20::42b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8C4C4C061756 for ; Wed, 7 Apr 2021 05:54:26 -0700 (PDT) Received: by mail-wr1-x42b.google.com with SMTP id f6so11779777wrv.12 for ; Wed, 07 Apr 2021 05:54:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:mime-version:content-disposition; bh=5pJucaSbsBrG/CWUYa4KAar5H4gKZ5F7mB0A0QhuVg8=; b=d2V91WvHx9LYuvRp67K+b4meIOoebm8Wze3K2hps8Z4p1NG0Npv4GLEd3VOyt6R73n ntVBvoUxVKZ8ei0NJ7XCuepOESwJ2+ga12A0D7VBIXnD8TNEGrVRdIGQ8ZsYAeo3XyTs sQK36KVXCCDhUQI8tfUTtgx7AHZBiH5h2j2ujQpEU8lo5uWA27s/olHs/gTv9u74XhP/ ude9/0cBBXCLuwNtTN/q89o8fJehaYAJz8HRLNfu0E8O68Zt9lWgYcqTbN9ZdSA9Z4Hy 3fd60TCI5lOlsUvGfbRLMeD7wix2u9WIVsA5f6CFFBDYynVaKXQs23nsluGMZJJ+0YLW gEEg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition; bh=5pJucaSbsBrG/CWUYa4KAar5H4gKZ5F7mB0A0QhuVg8=; b=aZBvHDz3GlCPUgfnMFOrb6UCgYKNfcFAE4ss74XyuPBh3nPCAmzMmlgsH5HsSxG1eT fTSyY3zBKhnMhL24+OoaaNR6oCeJ3aBThsGu8Rvm269yge4gwHrVnKlL4dYZFE5mIVUR A9bfe+/oF9CtuLd2kjZC1hNTPiJ5ofDRpipixgaacr4aor7WpjMI9+SRcpalUyiJYpK7 0SMTA3scQi8N9IQo+C8q6Zr1BfUH8T47ZiIoymCogj91xAhkp0oKJSkHqZKW5GNkGrlT Cq6dz2WAV8tQXOt8lSjiiBGicW2EszP8Jg3Hk6XnSQbVfLgxVs5HuAYx68/Ps/szjw08 vixA== X-Gm-Message-State: AOAM531jfOZCXATihGlSx3/AGm5LGQtiEvbWYRjTs4CUtmOgMT6jeWSk wDM7/DEmX+cwevDGzsj17vc= X-Google-Smtp-Source: ABdhPJyeCuj7I9k2tqVXowyjGr6fnhGiTMtvu86730HYRIIDYqLHsIw4A0xe43av8c355Tei87QCUw== X-Received: by 2002:adf:f0cd:: with SMTP id x13mr4264272wro.370.1617800065321; Wed, 07 Apr 2021 05:54:25 -0700 (PDT) Received: from Red ([2a01:cb1d:3d5:a100:264b:feff:fe03:2806]) by smtp.googlemail.com with ESMTPSA id n17sm15063930wrs.84.2021.04.07.05.54.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Apr 2021 05:54:24 -0700 (PDT) Date: Wed, 7 Apr 2021 14:54:23 +0200 From: Corentin Labbe To: ebiederm@xmission.com, kexec@lists.infradead.org Cc: linux-kernel@vger.kernel.org Subject: crashkernel reservation failed - No suitable area found on a cortina/gemini SoC Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello I try to do kexec on a cortina/gemini SoC. On a "normal" boot, kexec fail to find memory so I added crashkernel=8M to cmdline. (kernel size is ~6M). But now, kernel fail to reserve memory: Load Kern image from 0x30020000 to 0x800000 size 7340032 Booting Linux on physical CPU 0x0 Linux version 5.12.0-rc5-next-20210401+ (compile@Red) (armv7a-unknown-linux-gnueabihf-gcc (Gentoo 9.3.0-r2 p4) 9.3.0, GNU ld (Gentoo 2.34 p6) 2.34.0) #98 PREEMPT Wed Apr 7 14:14:08 CEST 2021 CPU: FA526 [66015261] revision 1 (ARMv4), cr=0000397f CPU: VIVT data cache, VIVT instruction cache OF: fdt: Machine model: Edimax NS-2502 Memory policy: Data cache writeback Zone ranges: Normal [mem 0x0000000000000000-0x0000000007ffffff] HighMem empty Movable zone start for each node Early memory node ranges node 0: [mem 0x0000000000000000-0x0000000007ffffff] Initmem setup node 0 [mem 0x0000000000000000-0x0000000007ffffff] crashkernel reservation failed - No suitable area found. Built 1 zonelists, mobility grouping on. Total pages: 32512 Kernel command line: console=ttyS0,19200n8 ip=dhcp crashkernel=8M Dentry cache hash table entries: 16384 (order: 4, 65536 bytes, linear) Inode-cache hash table entries: 8192 (order: 3, 32768 bytes, linear) mem auto-init: stack:off, heap alloc:off, heap free:off Memory: 119476K/131072K available (5034K kernel code, 579K rwdata, 1372K rodata, 3020K init, 210K bss, 11596K reserved, 0K cma-reserved, 0K highmem) SLUB: HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1 What can I do ? Thanks Regards