Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 17 Jan 2002 14:28:43 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 17 Jan 2002 14:28:39 -0500 Received: from exchange-public.alexa.com ([209.247.255.131]:31752 "EHLO shockG.archive.alexa.com") by vger.kernel.org with ESMTP id ; Thu, 17 Jan 2002 14:28:29 -0500 Message-ID: From: Guolin Cheng To: "'ebiederman@lnxi.com'" Cc: linux-kernel@vger.kernel.org, Etherboot-users , Ops Subject: RE: [Etherboot-users] 1G memory limit and Etherboot Date: Thu, 17 Jan 2002 11:27:17 -0800 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2653.19) Content-Type: text/plain; charset="iso-8859-1" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hi, Eric, The error messages are attached, which is output when I set mknbi options --rdbase=0x37BF0000: The basic configuration/facts are: HP Vectra 420VL DT 1.6G Pentium 4, 1.5G memory, RedHat 7.1 base system, 2.4.16 kernel, with CONFIG_HIMEM4G option set. The initrd file size is 20828KB compressed, After gunzip it is 64M, which contains all the /, except /var and /usr. The Etherboot is version 5.02 (5.04 also can not work neither). mknbi is version 1.2.6. The options gave to mknbi are: /usr/bin/mknbi-linux --output=${KERNEL_OUTPUT} --ip=dhcp --rdbase=0x37BF0000 --rootdir=/dev/ram0 --append="mem=1536M" vmlinuz initrd.img (--rdbase=top/asis options can not work, while --rdbase=0x36BA9000 works !!!!!, which means 0x38000000 - 20828k of initrd size!! ) My questions are: 1, Where comes the number 0x38000000, which is 896M? ( I enabled CONFIG_HIMEM4G in kernel configuration) 2, Why kernel reports 640M HIMEM? ( if I don't enable "mem=1536M" in kernel command line, it will reports 639M HIMEM) why not report 1536M total memory? 3, Why it reports 4 pages (pages 000fb000 / 000fc000 / 000f5000 / 000f6000) reserved twice? Which kernel parts reserves it? and for which purpose? Since it I boot the same machine using local hard drive, it will disappears. 4, Do you think we need to upgrade mknbi and etherboot packages? Because I think using --rdbase=0x??? is not an elegant solution. The system should automatically detected the memory and find a good position to store the compressed initrd file. Otherwise everytime I change the memory of a box, or I changed the contents of initrd, I have to calculate the size for --rdbase option again and again. Thanks a lot. Yours sincerely, Guolin Cheng Alexa Internet Inc. (415) 561-6021 guolin@alexa.com Linux version 2.4.16 (root@linux-test.alexa.com) (gcc version 2.96 20000731 (Red Hat Linux 7.1 2.96-81)) #1 Tue Dec 18 11:40:51 PST 2001 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000c0000 - 00000000000c4000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000005fff0000 (usable) BIOS-e820: 000000005fff0000 - 000000005fff8000 (ACPI data) BIOS-e820: 000000005fff8000 - 0000000060000000 (ACPI NVS) BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved) 640MB HIGHMEM available. found SMP MP-table at 000fb6b0 hm, page 000fb000 reserved twice. hm, page 000fc000 reserved twice. hm, page 000f5000 reserved twice. hm, page 000f6000 reserved twice. initrd extends beyond end of memory (0x39047000 > 0x38000000) disabling initrd On node 0 totalpages: 393216 zone(0): 4096 pages. zone(1): 225280 pages. zone(2): 163840 pages. Intel MultiProcessor Specification v1.1 Virtual Wire compatibility mode. OEM ID: INTEL Product ID: I845 APIC at: 0xFEE00000 Processor #0 Pentium 4(tm) APIC version 20 I/O APIC #2 Version 32 at 0xFEC00000. Processors: 1 Kernel command line: rw root=/dev/ram0 ip=dhcp rdbase= mem=1536M Initializing CPU#0 Detected 1594.118 MHz processor. Calibrating delay loop... 3178.49 BogoMIPS Memory: 1544892k/1572864k available (1603k kernel code, 27584k reserved, 513k da ta, 496k init, 655360k highmem) Dentry-cache hash table entries: 262144 (order: 9, 2097152 bytes) Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes) Mount-cache hash table entries: 32768 (order: 6, 262144 bytes) Buffer-cache hash table entries: 131072 (order: 7, 524288 bytes) Page-cache hash table entries: 524288 (order: 9, 2097152 bytes) CPU: L1 I cache: 12K, L1 D cache: 8K CPU: L2 cache: 256K Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. CPU: Intel(R) Pentium(R) 4 CPU 1600MHz stepping 0a Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX enabled ExtINT on CPU#0 ESR value before enabling vector: 00000000 ESR value after enabling vector: 00000000 ENABLING IO-APIC IRQs Setting 2 in the phys_id_present_map ...changing IO-APIC physical APIC ID to 2 ... ok. ..TIMER: vector=0x31 pin1=2 pin2=0 testing the IO APIC....................... .................................... done. Using local APIC timer interrupts. calibrating APIC timer ... ..... CPU clock speed is 1594.1459 MHz. ..... host bus clock speed is 99.6339 MHz. cpu: 0, clocks: 996339, slice: 498169 CPU0 mtrr: v1.40 (20010327) Richard Gooch (rgooch@atnf.csiro.au) mtrr: detected mtrr type: Intel PCI: PCI BIOS revision 2.10 entry at 0xfdab1, last bus=2 PCI: Using configuration type 1 PCI: Probing PCI hardware Unknown bridge resource 0: assuming transparent PCI: Using IRQ router PIIX [8086/2440] at 00:1f.0 PCI->APIC IRQ transform: (B0,I31,P3) -> 19 PCI->APIC IRQ transform: (B0,I31,P1) -> 17 PCI->APIC IRQ transform: (B0,I31,P2) -> 23 PCI->APIC IRQ transform: (B0,I31,P1) -> 17 PCI->APIC IRQ transform: (B2,I8,P0) -> 20 isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Starting kswapd allocated 32 pages and 32 bhs reserved for the highmem bounces VFS: Diskquotas version dquot_6.4.0 initialized Journalled Block Device driver loaded pty: 2048 Unix98 ptys configured Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI IS APNP enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A ttyS01 at 0x02f8 (irq = 3) is a 16550A block: 128 slots per queue, batch=32 RAMDISK driver initialized: 16 RAM disks of 131072K size 1024 blocksize Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx PIIX4: IDE controller on PCI bus 00 dev f9 PIIX4: chipset revision 18 PIIX4: not 100% native mode: will probe irqs later ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:DMA hda: IC35L020AVER07-0, ATA DISK drive hdc: Maxtor 4G160J8, ATA DISK drive hdd: Maxtor 4G120J6, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: 39851760 sectors (20404 MB) w/1916KiB Cache, CHS=2480/255/63, UDMA(100) hdc: 320173056 sectors (163929 MB) w/2048KiB Cache, CHS=83705/255/63, UDMA(100) hdd: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=58853/255/63, UDMA(100) Partition check: hda: hda1 hda2 < hda5 hda6 hda7 hda8 hda9 hda10 hda11 > hdc: hdc1 hdd: hdd1 Floppy drive(s): fd0 is 1.44M FDC 0 is a National Semiconductor PC87306 loop: loaded (max 8 devices) eepro100.c:v1.09j-t 9/29/99 Donald Becker http://cesdis.gsfc.nasa.gov/linux/driv ers/eepro100.html eepro100.c: $Revision: 1.36 $ 2000/11/17 Modified by Andrey V. Savochkin and others eth0: Intel Corp. 82820 (ICH2) Chipset Ethernet Controller, 00:04:23:06:DE:32, I RQ 20. Board assembly 000000-000, Physical connectors present: RJ45 Primary interface chip i82555 PHY #1. General self-test: passed. Serial sub-system self-test: passed. Internal registers self-test: passed. ROM checksum self-test: passed (0x04f4518b). Linux agpgart interface v0.99 (c) Jeff Hartmann agpgart: Maximum main memory to use for agp memory: 816M agpgart: Detected Intel i845 chipset agpgart: AGP aperture is 64M @ 0xe0000000 [drm] AGP 0.99 on Intel i845 @ 0xe0000000 64MB [drm] Initialized i810 1.1.0 20010616 on minor 0 SCSI subsystem driver Revision: 1.00 request_module[scsi_hostadapter]: Root fs not mounted usb.c: registered new driver hub uhci.c: USB Universal Host Controller Interface driver v1.1 PCI: Setting latency timer of device 00:1f.2 to 64 uhci.c: USB UHCI at I/O 0xd000, IRQ 19 usb.c: new USB bus registered, assigned bus number 1 hub.c: USB hub found hub.c: 2 ports detected PCI: Setting latency timer of device 00:1f.4 to 64 uhci.c: USB UHCI at I/O 0xd400, IRQ 23 usb.c: new USB bus registered, assigned bus number 2 hub.c: USB hub found hub.c: 2 ports detected Initializing USB Mass Storage driver... usb.c: registered new driver usb-storage USB Mass Storage support registered. md: linear personality registered as nr 1 md: raid0 personality registered as nr 2 md: raid1 personality registered as nr 3 md: raid5 personality registered as nr 4 raid5: measuring checksumming speed 8regs : 1877.200 MB/sec 32regs : 1130.000 MB/sec pIII_sse : 2069.200 MB/sec pII_mmx : 1880.000 MB/sec p5_mmx : 1851.200 MB/sec raid5: using function: pIII_sse (2069.200 MB/sec) md: multipath personality registered as nr 7 md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. LVM version 1.0.1-rc4(ish)(03/10/2001) NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 16384 buckets, 128Kbytes TCP: Hash tables configured (established 262144 bind 65536) Sending DHCP requests ., OK IP-Config: Got DHCP answer from 10.0.7.22, my address is 10.0.7.206 IP-Config: Complete: device=eth0, addr=10.0.7.206, mask=255.0.0.0, gw=10.0.0.2, host=bigdrive-test.alexa.com, domain=alexa.com, nis-domain=alexa.com, bootserver=10.0.7.22, rootserver=10.0.7.22, rootpath= NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. Kernel panic: VFS: Unable to mount root fs on 01:00 -----Original Message----- From: ebiederman@lnxi.com [mailto:ebiederman@lnxi.com] Sent: Tuesday, December 18, 2001 10:55 AM To: Guolin Cheng Cc: linux-kernel@vger.kernel.org; Etherboot-users Subject: Re: [Etherboot-users] 1G memory limit and Etherboot Guolin Cheng writes: > hi, Eric, > > I tried a few days ago, using etherboot 5.0.2, mknbi 1.2.6 with different > --rdbase options, but all failed. The kernel is 2.4.13, the initrd is around > 64M. Unless something regressed 2.4.13 should be fairly robust in this regard. > The netbooted client is a 1.5G memory HP Vectra 420. It can successfully > netbooted with 512M memory. But can not boot when memory is added to 1024M > and 1.5G. > > The error prompt is something like: > > Kernel panic: VFS: Unable to mount root fs on 01:00 Which just means it couldn't find your ramdisk. If you could please report all of your kernel messages. A serial console is ideal for that purpose. Without more information I cannot even guess why you are having problems. > I'm using Official kernel 2.4.13, the base system is RedHat 7.1 on HP > vectra 420. > > The commands I used to create the tagged images is: > > /usr/bin/mknbi-linux --output=./kernel.test.0540 --ip=dhcp > --rdbase=0x5b000000 --rootdir=/dev/ram0 --append="idebus=66 ide0=ata66 > ide1=ata66 ro" bzImage initrd > > I also tried options, --rdbase=top/asis/0x00300000, all can failed with the > same above problem. > > At last I use local hard disk boot, with the same kernel (4G high memory > option enabled), it can boot successfully, then I tried to see the memory > mapping, and get the following information: > [snip] > > Please suggest which method, I can try to netboot the machine. Thanks a > lot. 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