Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754824Ab2FMVh5 (ORCPT ); Wed, 13 Jun 2012 17:37:57 -0400 Received: from mail-gg0-f174.google.com ([209.85.161.174]:64930 "EHLO mail-gg0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754134Ab2FMVh4 (ORCPT ); Wed, 13 Jun 2012 17:37:56 -0400 Message-ID: <1339623535.3321.4.camel@lappy> Subject: Early boot panic on machine with lots of memory From: Sasha Levin To: Tejun Heo , Andrew Morton , David Miller , hpa@linux.intel.com Cc: linux-mm , "linux-kernel@vger.kernel.org" Date: Wed, 13 Jun 2012 23:38:55 +0200 Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3102 Lines: 49 Hi all, I'm seeing the following when booting a KVM guest with 65gb of RAM, on latest linux-next. Note that it happens with numa=off. [ 0.000000] BUG: unable to handle kernel paging request at ffff88102febd948 [ 0.000000] IP: [] __next_free_mem_range+0x9b/0x155 [ 0.000000] PGD 4826063 PUD cf67a067 PMD cf7fa067 PTE 800000102febd160 [ 0.000000] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 0.000000] CPU 0 [ 0.000000] Pid: 0, comm: swapper Not tainted 3.5.0-rc2-next-20120612-sasha-00015-g996227e #395 [ 0.000000] RIP: 0010:[] [] __next_free_mem_range+0x9b/0x155 [ 0.000000] RSP: 0000:ffffffff84801db8 EFLAGS: 00010006 [ 0.000000] RAX: 0000000000000109 RBX: 000000000000011a RCX: 0000000000000000 [ 0.000000] RDX: 0000000000000109 RSI: 0000000000000400 RDI: ffffffff84801e60 [ 0.000000] RBP: ffffffff84801e18 R08: ffff88102febd958 R09: 0000000100000000 [ 0.000000] R10: 0000001030000000 R11: 0000000000000119 R12: ffff88102febc080 [ 0.000000] R13: ffffffff84e1beb0 R14: 0000000000000000 R15: 0000000000000002 [ 0.000000] FS: 0000000000000000(0000) GS:ffff880fcfa00000(0000) knlGS:0000000000000000 [ 0.000000] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 0.000000] CR2: ffff88102febd948 CR3: 0000000004825000 CR4: 00000000000006b0 [ 0.000000] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 0.000000] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 0.000000] Process swapper (pid: 0, threadinfo ffffffff84800000, task ffffffff8482d400) [ 0.000000] Stack: [ 0.000000] 0000000000000000 ffffffff84801e68 ffffffff84801e70 ffffffff84801e60 [ 0.000000] ffffffff84e1be80 0000000000000003 0000010900000002 0000000000f9122f [ 0.000000] ffffffff84801e60 ffffffff84801e70 ffffffff84801e68 ffffea0000000000 [ 0.000000] Call Trace: [ 0.000000] [] free_low_memory_core_early+0x1e4/0x206 [ 0.000000] [] numa_free_all_bootmem+0x82/0x8e [ 0.000000] [] ? bad_to_user+0x149c/0x149c [ 0.000000] [] mem_init+0x1e/0xec [ 0.000000] [] start_kernel+0x209/0x3e9 [ 0.000000] [] ? kernel_init+0x28a/0x28a [ 0.000000] [] x86_64_start_reservations+0xff/0x104 [ 0.000000] [] x86_64_start_kernel+0x155/0x164 [ 0.000000] Code: 55 08 81 fe 00 04 00 00 0f 84 9a 00 00 00 41 3b 75 10 0f 85 9c 00 00 00 e9 8b 00 00 00 4c 6b c0 18 31 c9 4f 8d 04 04 85 d2 74 08 <49> 8b 48 f0 49 03 48 e8 48 83 cf ff 4c 39 d8 73 03 49 8b 38 4c [ 0.000000] RIP [] __next_free_mem_range+0x9b/0x155 [ 0.000000] RSP [ 0.000000] CR2: ffff88102febd948 [ 0.000000] ---[ end trace a7919e7f17c0a725 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/