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Subject[PROBLEM] - Kernel 2.4.0-test8 panics (addendum: rebooted suddenly while writing about the "panic" problem .. this is my second attempt)


My kernel panicked at /net/core/skbuff.c (line: 93 "BUG();")
That was the first time when I booted into it.

The second time, it was fine till about 2 hours, while I was writing *this* mail. Rebooted all of
a sudden (no idea as to where the problem was. It was _quick_. No messages, nothing).

This is my first post. Please do correct me if I've supplied incomplete information. (the output
of dmesg follows)


Linux version 2.4.0-test8 ( (gcc version 2.96 20000724 (experimental)) #4 Sat Sep 9 03:55:44 IST 2000
BIOS-provided physical RAM map:
BIOS-e820: 000000000009fc00 @ 0000000000000000 (usable)
BIOS-e820: 0000000000000400 @ 000000000009fc00 (reserved)
BIOS-e820: 0000000000004000 @ 00000000000dc000 (reserved)
BIOS-e820: 0000000000010000 @ 00000000000f0000 (reserved)
BIOS-e820: 0000000007f00000 @ 0000000000100000 (usable)
BIOS-e820: 0000000000040000 @ 00000000fffc0000 (reserved)
Scan SMP from c0000000 for 1024 bytes.
Scan SMP from c009fc00 for 1024 bytes.
Scan SMP from c00f0000 for 65536 bytes.
Scan SMP from c009fc00 for 4096 bytes.
On node 0 totalpages: 32768
zone(0): 4096 pages.
zone(1): 28672 pages.
zone(2): 0 pages.
mapped APIC to ffffe000 (01203000)
Kernel command line: BOOT_IMAGE=2.4-8 ro root=308 BOOT_FILE=/boot/2.4.0-8 video=matrox:vesa:443
Initializing CPU#0
Detected 549964677 Hz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 1097.73 BogoMIPS
Memory: 126972k/131072k available (1140k kernel code, 3712k reserved, 85k data, 204k init, 0k highmem)
Dentry-cache hash table entries: 16384 (order: 5, 131072 bytes)
Buffer-cache hash table entries: 8192 (order: 3, 32768 bytes)
Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 8192 (order: 4, 65536 bytes)
CPU: Intel Pentium III (Katmai) stepping 03
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.36 (20000221) Richard Gooch (
PCI: PCI BIOS revision 2.10 entry at 0xfdb91, last bus=1
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: Using IRQ router PIIX [8086/7110] at 00:07.0
Limiting direct PCI/PCI transfers.
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
IP: routing cache hash table of 1024 buckets, 8Kbytes
TCP: Hash tables configured (established 8192 bind 8192)
Starting kswapd v1.7
pty: 256 Unix98 ptys configured
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 39
PIIX4: chipset revision 1
PIIX4: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0xffa0-0xffa7, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0xffa8-0xffaf, BIOS settings: hdc:DMA, hdd:pio
hda: ST317221A, ATA DISK drive
hdb: ST38420A, ATA DISK drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: 33683328 sectors (17246 MB) w/512KiB Cache, CHS=2096/255/63, UDMA(33)
hdb: 16841664 sectors (8623 MB) w/512KiB Cache, CHS=1048/255/63, UDMA(33)
Partition check:
hda: hda1 hda2 hda3 < hda5 hda6 hda7 hda8 hda9 hda10 >
hdb: hdb1 hdb2 hdb3 < hdb5 hdb6 hdb7 hdb8 > hdb4
Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
kmem_create: Forcing size word alignment - nfs_fh
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 204k freed
Adding Swap: 136512k swap-space (priority -1)
es1371: version v0.26 time 07:40:11 Sep 9 2000
es1371: found chip, vendor id 0x1274 device id 0x1371 revision 0x08
es1371: found es1371 rev 8 at io 0xd800 irq 10
es1371: features: joystick 0x0
ac97_codec: AC97 audio codec, id: 0x4352:0x5913 (Cirrus Logic CS4297A)
8139too Fast Ethernet driver 0.9.8 loaded
eth0: RealTek RTL8139 Fast Ethernet board found at 0xefffff00, IRQ 9
eth0: Chip is 'RTL-8139B'
eth0: MAC address 00:50:bf:0a:4a:bc.
eth1: RealTek RTL8139 Fast Ethernet board found at 0xeffffe00, IRQ 12
eth1: Chip is 'RTL-8139A'
eth1: MAC address 00:00:e8:7c:a2:98.
eth0: Setting full-duplex based on MII #32 link partner ability of 45e1.
eth1: Setting full-duplex based on MII #32 link partner ability of 45e1.
eth0: Promiscuous mode enabled.
device eth0 entered promiscuous mode
ip_tables: (c)2000 Netfilter core team
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