Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 3 Jul 2001 20:17:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 3 Jul 2001 20:17:42 -0400 Received: from mailhost.idcomm.com ([207.40.196.14]:33946 "EHLO mailhost.idcomm.com") by vger.kernel.org with ESMTP id ; Tue, 3 Jul 2001 20:17:31 -0400 Message-ID: <3B42610F.29D004FF@idcomm.com> Date: Tue, 03 Jul 2001 18:19:27 -0600 From: "D. Stimits" Reply-To: stimits@idcomm.com X-Mailer: Mozilla 4.77 [en] (X11; U; Linux 2.4.6-pre1-xfs-4 i686) X-Accept-Language: en MIME-Version: 1.0 To: kernel-list Subject: page reserved twice Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I'm curious if there is any significance to this, which occurs at each reboot on an SMP system running noapic (sometimes Netscape manages to produce a hard lockup on the system, sometimes a core dump indicates NS had signal 7, bus error, in cases where it doesn't lock the system), 2.4.6-pre1 with XFS patches: kernel: BIOS-provided physical RAM map: kernel: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) kernel: BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) kernel: BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved) kernel: BIOS-e820: 0000000000100000 - 000000000ffe0000 (usable) kernel: BIOS-e820: 000000000ffe0000 - 000000000fff8000 (ACPI data) kernel: BIOS-e820: 000000000fff8000 - 0000000010000000 (ACPI NVS) kernel: Scan SMP from c0000000 for 1024 bytes. kernel: Scan SMP from c009fc00 for 1024 bytes. kernel: Scan SMP from c00f0000 for 65536 bytes. kernel: found SMP MP-table at 000faf50 kernel: hm, page 000fa000 reserved twice. kernel: hm, page 000fb000 reserved twice. kernel: hm, page 000f4000 reserved twice. thanteros kernel: hm, page 000f5000 reserved twice. thanteros kernel: On node 0 totalpages: 65504 thanteros kernel: zone(0): 4096 pages. kernel: zone(1): 61408 pages. kernel: zone(2): 0 pages. kernel: Intel MultiProcessor Specification v1.1 kernel: Virtual Wire compatibility mode. kernel: OEM ID: _AMI_ Product ID: 840_CARMEL__ APIC at: 0xFEE00000 Very similar messages seem to occur on a different machine with RH's 2.4.2 kernel, BX chipset, and IO-APIC enabled. The machine this is from has had this message on earlier kernels as well, none of which had XFS patches. What is the significance (or consequence) of pages reserved twice? D. Stimits, stimits@idcomm.com - 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/