From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f69.google.com (mail-wm0-f69.google.com [74.125.82.69]) by kanga.kvack.org (Postfix) with ESMTP id 37AD16B0253 for ; Fri, 8 Jul 2016 16:00:34 -0400 (EDT) Received: by mail-wm0-f69.google.com with SMTP id f126so19021575wma.3 for ; Fri, 08 Jul 2016 13:00:34 -0700 (PDT) Received: from outbound-smtp10.blacknight.com (outbound-smtp10.blacknight.com. [46.22.139.15]) by mx.google.com with ESMTPS id as5si750787wjc.68.2016.07.08.13.00.32 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 08 Jul 2016 13:00:32 -0700 (PDT) Received: from mail.blacknight.com (pemlinmail06.blacknight.ie [81.17.255.152]) by outbound-smtp10.blacknight.com (Postfix) with ESMTPS id BBD501C3257 for ; Fri, 8 Jul 2016 21:00:31 +0100 (IST) From: Mel Gorman Subject: [PATCH 0/3] Fix boot problem with deferred meminit on machine with no node 0 Date: Fri, 8 Jul 2016 21:00:28 +0100 Message-Id: <1468008031-3848-1-git-send-email-mgorman@techsingularity.net> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Linux-MM , LKML , Mel Gorman A machine with only node 1 was observed to crash very early in boot with the following message [ 0.000000] BUG: unable to handle kernel paging request at 000000000002a3c8 [ 0.000000] PGD 0 [ 0.000000] Modules linked in: [ 0.000000] Hardware name: Supermicro H8DSP-8/H8DSP-8, BIOS 080011 06/30/2006 [ 0.000000] task: ffffffff81c0d500 ti: ffffffff81c00000 task.ti: ffffffff81c00000 [ 0.000000] RIP: 0010:[] [] reserve_bootmem_region+0x6a/0xef [ 0.000000] RSP: 0000:ffffffff81c03eb0 EFLAGS: 00010086 [ 0.000000] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 0.000000] RDX: ffffffff81c03ec0 RSI: ffffffff81d205c0 RDI: ffffffff8213ee60 [ 0.000000] R13: ffffea0000000000 R14: ffffea0000000020 R15: ffffea0000000020 [ 0.000000] FS: 0000000000000000(0000) GS:ffff8800fba00000(0000) knlGS:0000000000000000 [ 0.000000] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 0.000000] CR2: 000000000002a3c8 CR3: 0000000001c06000 CR4: 00000000000006b0 [ 0.000000] Stack: [ 0.000000] ffffffff81c03f00 0000000000000400 ffff8800fbfc3200 ffffffff81e2a2c0 [ 0.000000] ffffffff81c03fb0 ffffffff81c03f20 ffffffff81dadf7d ffffea0002000040 [ 0.000000] ffffea0000000000 0000000000000000 000000000000ffff 0000000000000001 [ 0.000000] Call Trace: [ 0.000000] [] free_all_bootmem+0x4b/0x12a [ 0.000000] [] mem_init+0x70/0xa3 [ 0.000000] [] start_kernel+0x25b/0x49b This series is the lowest-risk solution to the problem. mm/page_alloc.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) -- 2.6.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org