hi. i'm having a strange networking problem i've never had before on fc4. it often stops working completly or partially, either because i am listening to the radio from shoutcasts, or for no apparent reason. the radio continues streaming, but noting else works. when i stop the radio, i have to bring eth0 down and up again, which usually fixes the problem. sometimes, though, it won't resolve names correctly. i can ping my router, googles ip, but not domain name. however, i know my resolv.conf is configured right, as i can ping the servers in there. once, when i tried to set it with dhclient (which i never used before, i just found it in /sbin) it completly crashed the computer. i think this may have something to do with using ipv6, when i want to be using ipv4. i haven't been able to figure out how to change this though.
it also crashed once when i was trying to set the ip, broadcast, and mask for wlan0.
here is the output of my dmesg, i just rebooted my computer.
Linux version 2.6.13-1.1532_FC4 (gcc version 4.0.1 20050727 (Red Hat 4.0.1-5)) #1 Thu Oct 20 01:30:08 EDT 2005
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 0000000007ec0000 (usable)
BIOS-e820: 0000000007ec0000 - 0000000007ef8000 (ACPI data)
BIOS-e820: 0000000007ef8000 - 0000000007f00000 (ACPI NVS)
BIOS-e820: 00000000ffb80000 - 00000000ffc00000 (reserved)
BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
0MB HIGHMEM available.
126MB LOWMEM available.
Using x86 segment limits to approximate NX protection
On node 0 totalpages: 32448
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 28352 pages, LIFO batch:15
HighMem zone: 0 pages, LIFO batch:1
DMI 2.3 present.
ACPI: RSDP (v000 AMI ) @ 0x000ff980
ACPI: RSDT (v001 DELL MUMMY 0x20000615 MSFT 0x00000097) @ 0x07ef0000
ACPI: FADT (v001 DELL MUMMY 0x20000615 MSFT 0x00000097) @ 0x07ef1000
ACPI: DSDT (v001 DELL DIM_L 0x00000012 MSFT 0x0100000b) @ 0x00000000
ACPI: BIOS age (2000) fails cutoff (2001), acpi=force is required to enable ACPIACPI: Disabling ACPI support
Allocating PCI resources starting at 07f00000 (gap: 07f00000:f7c80000)
Built 1 zonelists
Kernel command line: ro root=/dev/VolGroup00/LogVol00 rhgb quiet
Initializing CPU#0
CPU 0 irqstacks, hard=c04e7000 soft=c04e6000
PID hash table entries: 512 (order: 9, 8192 bytes)
Detected 664.625 MHz processor.
Using tsc for high-res timesource
Console: colour VGA+ 80x25
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 122096k/129792k available (3085k kernel code, 7156k reserved, 704k data, 176k init, 0k highmem)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
Calibrating delay using timer specific routine.. 1331.02 BogoMIPS (lpj=2662054)
Security Framework v1.0.0 initialized
SELinux: Initializing.
SELinux: Starting in permissive mode
selinux_register_security: Registering secondary module capability
Capability LSM initialized as secondary
Mount-cache hash table entries: 512
CPU: After generic identify, caps: 0383f9ff 00000000 00000000 00000000 00000000 00000000 00000000
CPU: After vendor identify, caps: 0383f9ff 00000000 00000000 00000000 00000000 00000000 00000000
CPU: L1 I cache: 16K, L1 D cache: 16K
CPU: L2 cache: 256K
CPU: After all inits, caps: 0383f1ff 00000000 00000000 00000040 00000000 00000000 00000000
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
mtrr: v2.0 (20020519)
CPU: Intel Pentium III (Coppermine) stepping 03
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
checking if image is initramfs... it is
Freeing initrd memory: 1679k freed
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfda95, last bus=1
PCI: Using configuration type 1
ACPI: Subsystem revision 20050408
ACPI: Interpreter disabled.
Linux Plug and Play Support v0.97 (c) Adam Belay
pnp: PnP ACPI: disabled
usbcore: registered new driver usbfs
usbcore: registered new driver hub
PCI: Probing PCI hardware
PCI: Probing PCI hardware (bus 00)
Boot video device is 0000:00:01.0
PCI: Transparent bridge - 0000:00:1e.0
PCI: Using IRQ router PIIX/ICH [8086/2410] at 0000:00:1f.0
PCI: Ignore bogus resource 6 [0:0] of 0000:00:01.0
PCI: Bridge: 0000:00:1e.0
IO window: d000-dfff
MEM window: ff800000-ff8fffff
PREFETCH window: f6a00000-f6afffff
PCI: Setting latency timer of device 0000:00:1e.0 to 64
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac)
audit: initializing netlink socket (disabled)
audit(1130711727.092:1): initialized
Total HugeTLB memory allocated, 0
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
SELinux: Registering netfilter hooks
Initializing Cryptographic API
ksign: Installing public key data
Loading keyring
- Added public key EEDDDBBBC3364C64
- User ID: Red Hat, Inc. (Kernel Module GPG key)
pci_hotplug: PCI Hot Plug PCI Core version: 0.5
isapnp: Scanning for PnP cards...
isapnp: No Plug & Play device found
Real Time Clock Driver v1.12
Linux agpgart interface v0.101 (c) Dave Jones
agpgart: Detected an Intel i810 E Chipset.
agpgart: detected 4MB dedicated video ram.
agpgart: AGP aperture is 64M @ 0xf8000000
PNP: No PS/2 controller found. Probing ports directly.
serio: i8042 AUX port at 0x60,0x64 irq 12
serio: i8042 KBD port at 0x60,0x64 irq 1
Serial: 8250/16550 driver $Revision: 1.90 $ 32 ports, IRQ sharing enabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
ICH: IDE controller at PCI slot 0000:00:1f.1
ICH: chipset revision 2
ICH: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
Probing IDE interface ide0...
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: PCRW1208, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 128KiB
hda: 39876480 sectors (20416 MB) w/1900KiB Cache, CHS=39560/16/63, UDMA(66)
hda: cache flushes not supported
hda: hda1 hda2 hda3
hdc: ATAPI 36X CD-ROM CD-R/RW drive, 4096kB Cache, DMA
Uniform CD-ROM driver Revision: 3.20
ide-floppy driver 0.99.newide
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.01:USB HID core driver
mice: PS/2 mouse device common for all mice
md: md driver 0.90.2 MAX_MD_DEVS=256, MD_SB_DISKS=27
md: bitmap version 3.38
NET: Registered protocol family 2
input: AT Translated Set 2 keyboard on isa0060/serio0
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 3, 32768 bytes)
TCP bind hash table entries: 4096 (order: 4, 114688 bytes)
TCP: Hash tables configured (established 4096 bind 4096)
TCP reno registered
TCP bic registered
Initializing IPsec netlink socket
NET: Registered protocol family 1
NET: Registered protocol family 17
Using IPI Shortcut mode
Freeing unused kernel memory: 176k freed
device-mapper: 4.4.0-ioctl (2005-01-12) initialised: dm-devel@redhat.com
cdrom: open failed.
input: ImPS/2 Logitech Wheel Mouse on isa0060/serio1
EXT3-fs: INFO: recovery required on readonly filesystem.
EXT3-fs: write access will be enabled during recovery.
kjournald starting. Commit interval 5 seconds
EXT3-fs: recovery complete.
EXT3-fs: mounted filesystem with ordered data mode.
SELinux: Disabled at runtime.
SELinux: Unregistering netfilter hooks
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
PCI: Found IRQ 3 for device 0000:01:0a.0
3c59x: Donald Becker and others. www scyld.com/network/vortex html
0000:01:0a.0: 3Com PCI 3c905C Tornado at 0xdc00. Vers LK1.1.19
PCI: Found IRQ 10 for device 0000:01:09.0
PCI: Sharing IRQ 10 with 0000:00:1f.3
PCI: Found IRQ 3 for device 0000:01:0a.0
hw_random hardware driver 1.0.0 loaded
USB Universal Host Controller Interface driver v2.3
PCI: Found IRQ 9 for device 0000:00:1f.2
PCI: Sharing IRQ 9 with 0000:01:0b.0
PCI: Setting latency timer of device 0000:00:1f.2 to 64
uhci_hcd 0000:00:1f.2: UHCI Host Controller
uhci_hcd 0000:00:1f.2: new USB bus registered, assigned bus number 1
uhci_hcd 0000:00:1f.2: irq 9, io base 0x0000ef80
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 2 ports detected
NET: Registered protocol family 10
Disabled Privacy Extensions on device c04756a0(lo)
IPv6 over IPv4 tunneling driver
md: Autodetecting RAID arrays.
md: autorun ...
md: ... autorun DONE.
cdrom: open failed.
cdrom: open failed.
EXT3 FS on dm-0, internal journal
kjournald starting. Commit interval 5 seconds
EXT3 FS on hda2, internal journal
EXT3-fs: mounted filesystem with ordered data mode.
Adding 262136k swap on /dev/VolGroup00/LogVol01. Priority:-1 extents:1
ip_tables: (C) 2000-2002 Netfilter core team
eth0: no IPv6 routers present
ip_conntrack version 2.1 (1014 buckets, 8112 max) - 248 bytes per conntrack
Bluetooth: Core ver 2.7
NET: Registered protocol family 31
Bluetooth: HCI device and connection manager initialized
Bluetooth: HCI socket layer initialized
Bluetooth: L2CAP ver 2.7
Bluetooth: L2CAP socket layer initialized
Bluetooth: RFCOMM ver 1.5
Bluetooth: RFCOMM socket layer initialized
Bluetooth: RFCOMM TTY layer initialized
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
parport0: irq 7 detected
lp0: using parport0 (polling).
lp0: console ready
application mixer_applet2 uses obsolete OSS audio interface

any help would be greatly appreciated, as i am getting real annoyed with this problem.