The machine is a network router (masquerading). After aproximately five minutes of working fine (access from the LAN to the internet is ok), it crashes with this goodbye screen: -------- skput:over c2819ef7:80 put:80 dev:eth0kernel BUG at skbuff.c:39! invalid operand 0000 [...] Aiee, killing interrupt handler Kernel panic: Attempted to kill the idle task! In interrupt handler - not syncing -------- eth0 is the NIC connected to the local network. Linux version 2.4.0-test8 (root@officegw.delrom.ro) (gcc version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)) #8 Sun Sep 10 20:35:13 EEST 2000 Kernel modules 2.3.10-pre1 Gnu C egcs-2.91.66 Binutils 2.9.5.0.22 Linux C Library 2.1.3 Dynamic linker ldd (GNU libc) 2.1.3 Procps 2.0.6 Mount 2.10f Net-tools 1.54 Console-tools 0.3.3 Sh-utils 2.0 Modules Loaded ne 8390 8139too processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 5 model name : Pentium II (Deschutes) stepping : 2 cpu MHz : 300.688971 cache size : 512 KB fdiv_bug : no hlt_bug : no sep_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 2 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov pat pse36 mmx fxsr bogomips : 599.65 ne 7760 2 (autoclean) 8390 6344 0 (autoclean) [ne] 8139too 15348 1 (autoclean) 0000-001f : dma1 0020-003f : pic1 0040-005f : timer 0060-006f : keyboard 0080-008f : dma page reg 00a0-00bf : pic2 00c0-00df : dma2 00f0-00ff : fpu 01f0-01f7 : ide0 0200-021f : NE2000 0300-031f : NE2000 03c0-03df : vga+ 03f6-03f6 : ide0 03f8-03ff : serial(auto) 0cf8-0cff : PCI conf1 5f00-5f1f : Intel Corporation 82371AB PIIX4 ACPI 6100-613f : Intel Corporation 82371AB PIIX4 ACPI 6400-641f : Intel Corporation 82371AB PIIX4 USB 6800-68ff : Realtek Semiconductor Co., Ltd. RTL-8139 6800-68ff : eth0 e000-efff : PCI Bus #01 e000-e07f : Silicon Integrated Systems [SiS] 86C326 f000-f00f : Intel Corporation 82371AB PIIX4 IDE 00000000-0009fbff : System RAM 0009fc00-0009ffff : reserved 000a0000-000bffff : Video RAM area 000c0000-000c7fff : Video ROM 000f0000-000fffff : System ROM 00100000-01ffffff : System RAM 00100000-002089ef : Kernel code 002089f0-0021d3a7 : Kernel data e0000000-e3ffffff : Intel Corporation 440LX/EX - 82443LX/EX Host bridge e4000000-e5ffffff : PCI Bus #01 e5000000-e500ffff : Silicon Integrated Systems [SiS] 86C326 e6000000-e67fffff : PCI Bus #01 e6000000-e67fffff : Silicon Integrated Systems [SiS] 86C326 e6800000-e68000ff : Realtek Semiconductor Co., Ltd. RTL-8139 e6800000-e68000ff : eth0 ffff0000-ffffffff : reserved -- Silviu Marin-Caea Systems and Network Administrator Delta Romania Phone +4093-267961 - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org