Hi, Just added an old network card, RTL-8029(AS), ne2k-pci driver, and tried to expand the network (failed because I didn't use a cross-over cable).
The code snippet that spat the thing: /* * IRQ resend * * Is called with interrupts disabled and desc->lock held. */ void check_irq_resend(struct irq_desc *desc, unsigned int irq) { unsigned int status = desc->status; /* * Make sure the interrupt is enabled, before resending it: */ desc->chip->enable(irq); /* * Temporary hack to figure out more about the problem, which * is causing the ancient network cards to die. */ if (desc->handle_irq != handle_edge_irq) { WARN_ON_ONCE(1); return; } and relevant dmesg snippet: [ 446.836399] eth1: RealTek RTL-8029 found at 0x9000, IRQ 16, 00:00:B4:BB:BF:E5. [ 855.458468] r8169: eth0: link up [ 857.500667] r8169: eth0: link up [ 902.294283] r8169: eth0: link up [ 4126.348427] r8169: eth0: link up [ 5598.446233] r8169: eth0: link down [ 5618.904846] r8169: eth0: link up [ 5623.133090] r8169: eth0: link down [ 5624.708071] r8169: eth0: link up [ 6328.267872] WARNING: at /home/indan/src/git/linux-2.6/kernel/irq/resend.c:70 check_irq_resend() [ 6328.267896] [<b0135d8f>] check_irq_resend+0x4f/0x8c [ 6328.267912] [<b0135888>] enable_irq+0x84/0xaa [ 6328.267918] [<c08e37cc>] ne2k_pci_block_output+0x0/0x138 [ne2k_pci] [ 6328.267931] [<c08e37cc>] ne2k_pci_block_output+0x0/0x138 [ne2k_pci] [ 6328.267939] [<c08e37cc>] ne2k_pci_block_output+0x0/0x138 [ne2k_pci] [ 6328.267947] [<c08e0f8a>] ei_start_xmit+0x29f/0x2b9 [8390] [ 6328.267966] [<b022a53e>] dev_hard_start_xmit+0x19e/0x1fd [ 6328.267976] [<b023620a>] __qdisc_run+0x6c/0x151 [ 6328.267986] [<b022c459>] dev_queue_xmit+0x12a/0x271 [ 6328.267991] [<b0260ec9>] arp_send+0x4c/0x64 [ 6328.268002] [<b0260524>] arp_xmit+0x4d/0x51 [ 6328.268009] [<b026117c>] arp_process+0x29b/0x50a [ 6328.268018] [<b0244f0a>] ip_forward+0x22c/0x23a [ 6328.268026] [<b02434a8>] ip_rcv_finish+0x0/0x282 [ 6328.268032] [<b0243db9>] ip_rcv+0x479/0x4a8 [ 6328.268037] [<b02434a8>] ip_rcv_finish+0x0/0x282 [ 6328.268044] [<b02614db>] arp_rcv+0xf0/0x104 [ 6328.268049] [<b012ae17>] hrtimer_run_queues+0x12/0x1a1 [ 6328.268055] [<b02613eb>] arp_rcv+0x0/0x104 [ 6328.268061] [<b022a07d>] netif_receive_skb+0x2d9/0x317 [ 6328.268068] [<b022baa0>] process_backlog+0x6d/0xd2 [ 6328.268075] [<b022c1c2>] net_rx_action+0x81/0x14d [ 6328.268082] [<b011dd84>] __do_softirq+0x35/0x75 [ 6328.268088] [<b0106030>] do_softirq+0x3e/0x8d [ 6328.268098] [<b0136530>] handle_fasteoi_irq+0x0/0xbe [ 6328.268103] [<b011dd44>] irq_exit+0x25/0x30 [ 6328.268107] [<b010630f>] do_IRQ+0x94/0xad [ 6328.268114] [<b0104763>] common_interrupt+0x23/0x28 [ 6328.268123] [<b0102a0c>] default_idle+0x27/0x39 [ 6328.268128] [<b0102347>] cpu_idle+0x41/0x55 [ 6328.268133] [<b032f99b>] start_kernel+0x20e/0x213 [ 6328.268140] [<b032f317>] unknown_bootoption+0x0/0x196 [ 6328.268146] ======================= # cat /proc/interrupts CPU0 0: 9804926 IO-APIC-edge timer 1: 8270 IO-APIC-edge i8042 9: 0 IO-APIC-fasteoi acpi 12: 181281 IO-APIC-edge i8042 16: 40410 IO-APIC-fasteoi sata_sil, eth1 17: 0 IO-APIC-fasteoi ohci_hcd:usb1, NVidia nForce2 18: 499428 IO-APIC-fasteoi ohci_hcd:usb2 19: 2 IO-APIC-fasteoi ehci_hcd:usb3 20: 689588 IO-APIC-fasteoi eth0 NMI: 0 LOC: 9805098 ERR: 0 MIS: 0 So the card is sharing an IRQ with the disk controller. No idea if the network card died after this warning, for all practical purposes it didn't work before, so couldn't check. I can provide more information and run some tests if anyone wants that, just keep in mind that the card isn't connected to anything. Greetings, Indan - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html