From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-wr1-x433.google.com ([2a00:1450:4864:20::433]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lU7hS-004zsE-Fe for kexec@lists.infradead.org; Wed, 07 Apr 2021 12:54:28 +0000 Received: by mail-wr1-x433.google.com with SMTP id a6so11858421wrw.8 for ; Wed, 07 Apr 2021 05:54:25 -0700 (PDT) Date: Wed, 7 Apr 2021 14:54:23 +0200 From: Corentin Labbe Subject: crashkernel reservation failed - No suitable area found on a cortina/gemini SoC Message-ID: MIME-Version: 1.0 Content-Disposition: inline List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: ebiederm@xmission.com, kexec@lists.infradead.org Cc: 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 _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec