Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965285AbVIOVko (ORCPT ); Thu, 15 Sep 2005 17:40:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S965286AbVIOVko (ORCPT ); Thu, 15 Sep 2005 17:40:44 -0400 Received: from zproxy.gmail.com ([64.233.162.203]:65058 "EHLO zproxy.gmail.com") by vger.kernel.org with ESMTP id S965283AbVIOVkn (ORCPT ); Thu, 15 Sep 2005 17:40:43 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:from:to:subject:date:user-agent:mime-version:content-type:content-transfer-encoding:content-disposition:message-id; b=ONtT49IJPR7dxX8oHBxqFINv3Gcjkeyu5nY7SLL5H41S2PoDRCcDXH3PNoyU4XheGAhutFhIwwfXMT9mU9BeYrDp5GhAPUfp6plmutBqkFSqNsdAcfeErj1V71z+mvaZ/0vheD5Xo3W64QsQIJP3ndkH1dHOY5uoKVlsyqc8aas= From: Jesper Juhl To: linux-kernel@vger.kernel.org Subject: early printk timings way off Date: Thu, 15 Sep 2005 23:42:24 +0200 User-Agent: KMail/1.8.2 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200509152342.24922.jesper.juhl@gmail.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3042 Lines: 62 Early during boot the printk timings are way off : [4294667.296000] Linux version 2.6.14-rc1-git1 (juhl@dragon) (gcc version 3.3.6) #1 PREEMPT Thu Sep 15 22:25:37 CEST 2005 [4294667.296000] BIOS-provided physical RAM map: [4294667.296000] BIOS-e820: 0000000000000000 - 000000000009f800 (usable) [4294667.296000] BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved) [4294667.296000] BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) [4294667.296000] BIOS-e820: 0000000000100000 - 000000001ffec000 (usable) [4294667.296000] BIOS-e820: 000000001ffec000 - 000000001ffef000 (ACPI data) [4294667.296000] BIOS-e820: 000000001ffef000 - 000000001ffff000 (reserved) [4294667.296000] BIOS-e820: 000000001ffff000 - 0000000020000000 (ACPI NVS) [4294667.296000] BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved) [4294667.296000] 511MB LOWMEM available. [4294667.296000] On node 0 totalpages: 131052 [4294667.296000] DMA zone: 4096 pages, LIFO batch:1 [4294667.296000] Normal zone: 126956 pages, LIFO batch:31 [4294667.296000] HighMem zone: 0 pages, LIFO batch:1 [4294667.296000] DMI 2.3 present. [4294667.296000] ACPI: RSDP (v000 ASUS ) @ 0x000f69e0 [4294667.296000] ACPI: RSDT (v001 ASUS A7M266 0x30303031 MSFT 0x31313031) @ 0x1ffec000 [4294667.296000] ACPI: FADT (v001 ASUS A7M266 0x30303031 MSFT 0x31313031) @ 0x1ffec080 [4294667.296000] ACPI: BOOT (v001 ASUS A7M266 0x30303031 MSFT 0x31313031) @ 0x1ffec040 [4294667.296000] ACPI: DSDT (v001 ASUS A7M266 0x00001000 MSFT 0x0100000b) @ 0x00000000 [4294667.296000] Allocating PCI resources starting at 30000000 (gap: 20000000:dfff0000) [4294667.296000] Built 1 zonelists [4294667.296000] Kernel command line: auto BOOT_IMAGE=2.6.14-rc1-git1 ro root=801 pci=usepirqmask [4294667.296000] Initializing CPU#0 [4294667.296000] CPU 0 irqstacks, hard=c03d2000 soft=c03d1000 [4294667.296000] PID hash table entries: 2048 (order: 11, 32768 bytes) ^^^^^ These I can buy as the result of an uninitialized variable. Why are we not initializing this counter to zero? [ 0.000000] Detected 1400.279 MHz processor. ^^^^^ Ok, we finally seem to have initialized the counter... [ 27.121583] Using tsc for high-res timesource ^^^^^ 27 seconds??? Something is off here. It certainly doesn't take 27 sec to get from the previous message to this one during the actual boot. What's up with that? [ 27.121620] Console: colour dummy device 80x25 [ 27.122909] Dentry cache hash table entries: 131072 (order: 7, 524288 bytes) ... No big deal, but it sure would look better (and be actually useful for the first few messages) if things started out at zero and then actually increased sanely from the very beginning. :-) -- Jesper Juhl - 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/