Desktop# dmesg Linux version 2.6.21.5-smp (root@midas) (gcc version 4.1.2) #2 SMP Tue Jun 12 15:23:16 CDT 2007 BIOS-provided physical RAM map: sanitize start sanitize end copy_e820_map() start: 0000000000000000 size: 000000000009fc00 end: 000000000009fc00 type: 1 copy_e820_map() type is E820_RAM copy_e820_map() start: 000000000009fc00 size: 0000000000000400 end: 00000000000a0000 type: 2 copy_e820_map() start: 00000000000f0000 size: 0000000000010000 end: 0000000000100000 type: 2 copy_e820_map() start: 0000000000100000 size: 000000000fef0000 end: 000000000fff0000 type: 1 copy_e820_map() type is E820_RAM copy_e820_map() start: 000000000fff0000 size: 0000000000008000 end: 000000000fff8000 type: 3 copy_e820_map() start: 000000000fff8000 size: 0000000000008000 end: 0000000010000000 type: 4 copy_e820_map() start: 00000000fec00000 size: 0000000000001000 end: 00000000fec01000 type: 2 copy_e820_map() start: 00000000fee00000 size: 0000000000001000 end: 00000000fee01000 type: 2 copy_e820_map() start: 00000000fff80000 size: 0000000000080000 end: 0000000100000000 type: 2 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable) BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved) BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 000000000fff0000 (usable) BIOS-e820: 000000000fff0000 - 000000000fff8000 (ACPI data) BIOS-e820: 000000000fff8000 - 0000000010000000 (ACPI NVS) BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved) BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved) BIOS-e820: 00000000fff80000 - 0000000100000000 (reserved) 0MB HIGHMEM available. 255MB LOWMEM available. found SMP MP-table at 000fb930 Entering add_active_range(0, 0, 65520) 0 entries of 256 used Zone PFN ranges: DMA 0 -> 4096 Normal 4096 -> 65520 HighMem 65520 -> 65520 early_node_map[1] active PFN ranges 0: 0 -> 65520 On node 0 totalpages: 65520 DMA zone: 32 pages used for memmap DMA zone: 0 pages reserved DMA zone: 4064 pages, LIFO batch:0 Normal zone: 479 pages used for memmap Normal zone: 60945 pages, LIFO batch:15 HighMem zone: 0 pages used for memmap DMI 2.3 present. ACPI: RSDP 000FA940, 0014 (r0 AMI ) ACPI: RSDT 0FFF0000, 002C (r1 AMIINT VIA_K7 10 MSFT 97) ACPI: FACP 0FFF0030, 0081 (r1 AMIINT VIA_K7 11 MSFT 97) ACPI: DSDT 0FFF0120, 3362 (r1 VIA VIA_K7 1000 MSFT 100000D) ACPI: FACS 0FFF8000, 0040 ACPI: APIC 0FFF00C0, 0054 (r1 AMIINT VIA_K7 9 MSFT 97) ACPI: PM-Timer IO Port: 0x808 ACPI: Local APIC address 0xfee00000 ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) Processor #0 6:3 APIC version 16 ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0]) IOAPIC[0]: apic_id 2, version 3, address 0xfec00000, GSI 0-23 ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 low level) ACPI: IRQ0 used by override. ACPI: IRQ2 used by override. ACPI: IRQ9 used by override. Enabling APIC mode: Flat. Using 1 I/O APICs Using ACPI (MADT) for SMP configuration information Allocating PCI resources starting at 20000000 (gap: 10000000:eec00000) Built 1 zonelists. Total pages: 65009 Kernel command line: BOOT_IMAGE=Linux ro root=302 mapped APIC to ffffd000 (fee00000) mapped IOAPIC to ffffc000 (fec00000) Enabling fast FPU save and restore... done. Initializing CPU#0 PID hash table entries: 1024 (order: 10, 4096 bytes) Detected 700.040 MHz processor. Console: colour dummy device 80x25 Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Memory: 250064k/262080k available (6215k kernel code, 11556k reserved, 2017k data, 392k init, 0k highmem) virtual kernel memory layout: fixmap : 0xffe17000 - 0xfffff000 (1952 kB) pkmap : 0xff800000 - 0xffc00000 (4096 kB) vmalloc : 0xd0800000 - 0xff7fe000 ( 751 MB) lowmem : 0xc0000000 - 0xcfff0000 ( 255 MB) .init : 0xc0915000 - 0xc0977000 ( 392 kB) .data : 0xc0711c79 - 0xc090a38c (2017 kB) .text : 0xc0100000 - 0xc0711c79 (6215 kB) Checking if this processor honours the WP bit even in supervisor mode... Ok. Calibrating delay using timer specific routine.. 1401.72 BogoMIPS (lpj=2803455) Security Framework v1.0.0 initialized Mount-cache hash table entries: 512 CPU: After generic identify, caps: 0183fbff c1c7fbff 00000000 00000000 00000000 00000000 00000000 CPU: L1 I Cache: 64K (64 bytes/line), D cache 64K (64 bytes/line) CPU: L2 Cache: 64K (64 bytes/line) CPU: After all inits, caps: 0183fbff c1c7fbff 00000000 00000420 00000000 00000000 00000000 Intel machine check architecture supported. Intel machine check reporting enabled on CPU#0. Compat vDSO mapped to ffffe000. Checking 'hlt' instruction... OK. SMP alternatives: switching to UP code Freeing SMP alternatives: 24k freed ACPI: Core revision 20070126 CPU0: AMD Duron(tm) stepping 01 Total of 1 processors activated (1401.72 BogoMIPS). ENABLING IO-APIC IRQs ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1 Brought up 1 CPUs NET: Registered protocol family 16 ACPI: bus type pci registered PCI: PCI BIOS revision 2.10 entry at 0xfdaf1, last bus=1 PCI: Using configuration type 1 Setting up standard PCI resources ACPI: Interpreter enabled ACPI: Using IOAPIC for interrupt routing ACPI: PCI Root Bridge [PCI0] (0000:00) PCI: Probing PCI hardware (bus 00) PCI quirk: region 0800-087f claimed by vt8235 PM PCI quirk: region 0400-040f claimed by vt8235 SMB Boot video device is 0000:01:00.0 ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15) ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 5 6 7 *10 11 12 14 15) ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 *5 6 7 10 11 12 14 15) ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 *10 11 12 14 15) ACPI: Power Resource [URP1] (off) ACPI: Power Resource [URP2] (off) ACPI: Power Resource [FDDP] (off) ACPI: Power Resource [LPTP] (off) Linux Plug and Play Support v0.97 (c) Adam Belay pnp: PnP ACPI init pnp: PnP ACPI: found 12 devices SCSI subsystem initialized libata version 2.20 loaded. usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb PCI: Using ACPI for IRQ routing PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report pnp: 00:01: iomem range 0xfee00000-0xfee00fff could not be reserved ieee1394: Initialized config rom entry `ip1394' Time: tsc clocksource has been installed. PCI: Bridge: 0000:00:01.0 IO window: disabled. MEM window: dde00000-dfefffff PREFETCH window: cdd00000-ddcfffff PCI: Setting latency timer of device 0000:00:01.0 to 64 NET: Registered protocol family 2 IP route cache hash table entries: 2048 (order: 1, 8192 bytes) TCP established hash table entries: 8192 (order: 4, 98304 bytes) TCP bind hash table entries: 8192 (order: 4, 65536 bytes) TCP: Hash tables configured (established 8192 bind 8192) TCP reno registered apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac) apm: overridden by ACPI. VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) NTFS driver 2.1.28 [Flags: R/W]. JFS: nTxBlock = 1954, nTxLock = 15635 SGI XFS with ACLs, security attributes, large block numbers, no debug enabled SGI XFS Quota Management subsystem OCFS2 1.3.3 OCFS2 Node Manager 1.3.3 OCFS2 DLM 1.3.3 OCFS2 DLMFS 1.3.3 OCFS2 User DLM kernel interface loaded GFS2 (built Jun 12 2007 15:22:42) installed io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered (default) pci_hotplug: PCI Hot Plug PCI Core version: 0.5 vesafb: framebuffer at 0xd0000000, mapped to 0xd0980000, using 1536k, total 32768k vesafb: mode is 1024x768x8, linelength=1024, pages=4 vesafb: protected mode interface info at c000:a410 vesafb: pmi: set display start = c00ca455, set palette = c00ca4da vesafb: pmi: ports = b4c3 b503 ba03 c003 c103 c403 c503 c603 c703 c803 c903 cc03 ce03 cf03 d003 d103 d203 d303 d403 d503 da03 ff03 vesafb: scrolling: redraw vesafb: Pseudocolor: size=8:8:8:8, shift=0:0:0:0 Console: switching to colour frame buffer device 128x48 fb0: VESA VGA frame buffer device isapnp: Scanning for PnP cards... isapnp: No Plug & Play device found Switched to high resolution mode on CPU 0 Real Time Clock Driver v1.12ac Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A serial8250: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A 00:0a: ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A Floppy drive(s): fd0 is 1.44M FDC 0 is a post-1991 82077 RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize loop: loaded (max 8 devices) Compaq SMART2 Driver (v 2.6.0) HP CISS Driver (v 3.6.14) input: Macintosh mouse button emulation as /class/input/input0 Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller at PCI slot 0000:00:11.1 ACPI: Unable to derive IRQ for device 0000:00:11.1 ACPI: PCI Interrupt 0000:00:11.1[A]: no GSI VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1 ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:DMA Probing IDE interface ide0... hda: ST3120026A, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 Probing IDE interface ide1... hdc: HL-DT-STDVD-ROM GDR8163B, ATAPI CD/DVD-ROM drive hdd: CD-RW CDR-7S52, ATAPI CD/DVD-ROM drive ide1 at 0x170-0x177,0x376 on irq 15 hda: max request size: 512KiB hda: 234441648 sectors (120034 MB) w/8192KiB Cache, CHS=16383/255/63, UDMA(100) hda: cache flushes supported hda: hda1 hda2 hda3 hda4 < hda5 hda6 > hdc: ATAPI 52X DVD-ROM drive, 256kB Cache, UDMA(33) Uniform CD-ROM driver Revision: 3.20 hdd: ATAPI 52X CD-ROM CD-R/RW drive, 2048kB Cache, UDMA(33) ide-floppy driver 0.99.newide Loading iSCSI transport class v2.0-724. iscsi: registered transport (tcp) Loading Adaptec I2O RAID: Version 2.4 Build 5go Detecting Adaptec I2O RAID controllers... Adaptec aacraid driver (1.1-5[2423]-mh3) aic94xx: Adaptec aic94xx SAS/SATA driver version 1.0.3 loaded scsi: Detection failed (no card) sym53c416.c: Version 1.0.0-ac qlogicfas: no cards were found, please specify I/O address and IRQ using iobase= and irq= options<6>QLogic Fibre Channel HBA Driver iscsi: registered transport (qla4xxx) QLogic iSCSI HBA Driver Emulex LightPulse Fibre Channel SCSI driver 8.1.11 Copyright(c) 2004-2006 Emulex. All rights reserved. seagate: ST0x/TMC-8xx not detected. Failed initialization of WD-7000 SCSI card! DC390: clustering now enabled by default. If you get problems load with "disable_clustering=1" and report to maintainers megaraid cmm: 2.20.2.7 (Release Date: Sun Jul 16 00:01:03 EST 2006) megaraid: 2.20.5.1 (Release Date: Thu Nov 16 15:32:35 EST 2006) megasas: 00.00.03.10-rc1 Wed Feb 14 10:14:25 PST 2007 GDT-HA: Storage RAID Controller Driver. Version: 3.05 GDT-HA: Found 0 PCI Storage RAID Controllers 3ware Storage Controller device driver for Linux v1.26.02.002. 3ware 9000 Storage Controller device driver for Linux v2.26.02.008. nsp32: loading... ipr: IBM Power RAID SCSI Device Driver version: 2.3.1 (January 23, 2007) RocketRAID 3xxx SATA Controller driver v1.0 (060426) st: Version 20070203, fixed bufsize 32768, s/g segs 256 I2O subsystem v1.325 i2o: max drivers = 8 I2O Configuration OSM v1.323 I2O Bus Adapter OSM v1.317 I2O Block Device OSM v1.325 I2O SCSI Peripheral OSM v1.316 I2O ProcFS OSM v1.316 Fusion MPT base driver 3.04.04 Copyright (c) 1999-2007 LSI Logic Corporation Fusion MPT SPI Host driver 3.04.04 Fusion MPT FC Host driver 3.04.04 Fusion MPT SAS Host driver 3.04.04 usbmon: debugfs is not available ACPI: PCI Interrupt 0000:00:10.3[D] -> GSI 21 (level, low) -> IRQ 16 ehci_hcd 0000:00:10.3: EHCI Host Controller ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 1 ehci_hcd 0000:00:10.3: irq 16, io mem 0xdffffe00 ehci_hcd 0000:00:10.3: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 6 ports detected 116x: driver isp116x-hcd, 03 Nov 2005 ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver USB Universal Host Controller Interface driver v3.0 ACPI: PCI Interrupt 0000:00:10.0[A] -> GSI 21 (level, low) -> IRQ 16 uhci_hcd 0000:00:10.0: UHCI Host Controller uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 2 uhci_hcd 0000:00:10.0: irq 16, io base 0x0000d800 usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 2 ports detected ACPI: PCI Interrupt 0000:00:10.1[B] -> GSI 21 (level, low) -> IRQ 16 uhci_hcd 0000:00:10.1: UHCI Host Controller uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 3 uhci_hcd 0000:00:10.1: irq 16, io base 0x0000dc00 usb usb3: configuration #1 chosen from 1 choice hub 3-0:1.0: USB hub found hub 3-0:1.0: 2 ports detected usb 1-3: new high speed USB device using ehci_hcd and address 2 ACPI: PCI Interrupt 0000:00:10.2[C] -> GSI 21 (level, low) -> IRQ 16 uhci_hcd 0000:00:10.2: UHCI Host Controller uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 4 uhci_hcd 0000:00:10.2: irq 16, io base 0x0000e000 usb usb4: configuration #1 chosen from 1 choice hub 4-0:1.0: USB hub found hub 4-0:1.0: 2 ports detected usb 1-3: configuration #1 chosen from 1 choice sl811: driver sl811-hcd, 19 May 2005 Initializing USB Mass Storage driver... scsi2 : SCSI emulation for USB Mass Storage devices usb-storage: device found at 2 usb-storage: waiting for device to settle before scanning usbcore: registered new interface driver usb-storage USB Mass Storage support registered. usbcore: registered new interface driver hiddev usbcore: registered new interface driver usbhid drivers/usb/input/hid-core.c: v2.6:USB HID core driver PNP: PS/2 Controller [PNP0303:PS2K,PNP0f13:PS2M] at 0x60,0x64 irq 1,12 serio: i8042 KBD port at 0x60,0x64 irq 1 serio: i8042 AUX port at 0x60,0x64 irq 12 mice: PS/2 mouse device common for all mice md: linear personality registered for level -1 md: raid0 personality registered for level 0 md: raid1 personality registered for level 1 md: raid10 personality registered for level 10 raid6: int32x1 269 MB/s raid6: int32x2 301 MB/s raid6: int32x4 276 MB/s raid6: int32x8 188 MB/s raid6: mmxx1 583 MB/s raid6: mmxx2 917 MB/s raid6: sse1x1 536 MB/s raid6: sse1x2 886 MB/s raid6: using algorithm sse1x2 (886 MB/s) md: raid6 personality registered for level 6 md: raid5 personality registered for level 5 md: raid4 personality registered for level 4 raid5: measuring checksumming speed 8regs : 1065.000 MB/sec 8regs_prefetch: 890.000 MB/sec 32regs : 695.000 MB/sec 32regs_prefetch: 670.000 MB/sec pII_mmx : 1913.000 MB/sec p5_mmx : 2545.000 MB/sec raid5: using function: p5_mmx (2545.000 MB/sec) md: multipath personality registered for level -4 device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com TCP cubic registered Initializing XFRM netlink socket NET: Registered protocol family 1 NET: Registered protocol family 17 Using IPI Shortcut mode input: AT Translated Set 2 keyboard as /class/input/input1 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. ReiserFS: hda2: found reiserfs format "3.6" with standard journal ReiserFS: hda2: using ordered data mode ReiserFS: hda2: journal params: device hda2, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 ReiserFS: hda2: checking transaction log (hda2) ReiserFS: hda2: Using r5 hash to sort names VFS: Mounted root (reiserfs filesystem) readonly. Freeing unused kernel memory: 392k freed shpchp: Standard Hot Plug PCI Controller Driver version: 0.4 gameport: EMU10K1 is pci0000:00:07.1/gameport0, io 0xec00, speed 1193kHz Linux agpgart interface v0.102 (c) Dave Jones agpgart: Detected VIA KT400/KT400A/KT600 chipset agpgart: AGP aperture is 128M @ 0xe0000000 8139too Fast Ethernet driver 0.9.28 ACPI: PCI Interrupt 0000:00:06.0[A] -> GSI 17 (level, low) -> IRQ 17 eth0: RealTek RTL8139 at 0xe800, 00:50:bf:10:f2:92, IRQ 17 eth0: Identified 8139 chip type 'RTL-8139B' scsi 2:0:0:0: Direct-Access USB 2.0 Flash Disk 1100 PQ: 0 ANSI: 0 CCS SCSI device sda: 1981440 512-byte hdwr sectors (1014 MB) sda: Write Protect is off sda: Mode Sense: 43 00 00 00 sda: assuming drive cache: write through SCSI device sda: 1981440 512-byte hdwr sectors (1014 MB) sda: Write Protect is off sda: Mode Sense: 43 00 00 00 sda: assuming drive cache: write through sda: sd 2:0:0:0: Attached scsi removable disk sda usb-storage: device scan complete kobject_add failed for uhci_hcd with -EEXIST, don't try to register things with the same name in the same directory. [] kobject_shadow_add+0x117/0x1a0 [] mod_sysfs_setup+0x24/0xb0 [] sys_init_module+0x1648/0x1940 [] syscall_call+0x7/0xb ======================= kobject_add failed for uhci_hcd with -EEXIST, don't try to register things with the same name in the same directory. [] kobject_shadow_add+0x117/0x1a0 [] mod_sysfs_setup+0x24/0xb0 [] sys_init_module+0x1648/0x1940 [] syscall_call+0x7/0xb ======================= kobject_add failed for uhci_hcd with -EEXIST, don't try to register things with the same name in the same directory. [] kobject_shadow_add+0x117/0x1a0 [] mod_sysfs_setup+0x24/0xb0 [] sys_init_module+0x1648/0x1940 [] syscall_call+0x7/0xb ======================= kobject_add failed for ehci_hcd with -EEXIST, don't try to register things with the same name in the same directory. [] kobject_shadow_add+0x117/0x1a0 [] mod_sysfs_setup+0x24/0xb0 [] sys_init_module+0x1648/0x1940 [] syscall_call+0x7/0xb ======================= ACPI: PCI Interrupt 0000:00:07.0[A] -> GSI 18 (level, low) -> IRQ 18 input: PC Speaker as /class/input/input2 i2c_core: exports duplicate symbol i2c_smbus_write_i2c_block_data (owned by kernel) kobject_add failed for usb_storage with -EEXIST, don't try to register things with the same name in the same directory. [] kobject_shadow_add+0x117/0x1a0 [] mod_sysfs_setup+0x24/0xb0 [] sys_init_module+0x1648/0x1940 [] syscall_call+0x7/0xb ======================= sd 2:0:0:0: Attached scsi generic sg0 type 0 Adding 489972k swap on /dev/hda3. Priority:-1 extents:1 across:489972k parport: PnPBIOS parport detected. parport0: PC-style at 0x378 (0x778), irq 7 [PCSPP,TRISTATE,EPP] lp0: using parport0 (interrupt-driven). lp0: console ready Capability LSM initialized input: ImPS/2 Generic Wheel Mouse as /class/input/input3 ReiserFS: hda5: found reiserfs format "3.6" with standard journal ReiserFS: hda5: using ordered data mode ReiserFS: hda5: journal params: device hda5, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 ReiserFS: hda5: checking transaction log (hda5) ReiserFS: hda5: Using r5 hash to sort names ReiserFS: hda6: found reiserfs format "3.6" with standard journal ReiserFS: hda6: using ordered data mode ReiserFS: hda6: journal params: device hda6, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 ReiserFS: hda6: checking transaction log (hda6) ReiserFS: hda6: Using r5 hash to sort names NTFS volume version 3.1. NTFS-fs warning (device hda1): load_system_files(): Unsupported volume flags 0x4000 encountered. NTFS-fs warning (device hda1): load_system_files(): Volume has unsupported flags set. Will not be able to remount read-write. Run chkdsk and mount in Windows. eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 NET: Registered protocol family 10 lo: Disabled Privacy Extensions eth0: no IPv6 routers present