<div class="gmail_quote"><div>Hi Daniel. Thank you very much for your help on this problem. I've trawled through all the logs, and I previously provided a relevant section of the kernel log to the bug report: Jun 21 04:34:46 ppp kernel: [ 5493.104588] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 04:34:46 ppp kernel: [ 5493.104738] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 04:34:46 ppp kernel: [ 5493.105384] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Which then sets into a repeating pattern: Jun 21 05:05:02 ppp kernel: [ 7308.203455] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 05:05:02 ppp kernel: [ 7308.203606] eth0: Transmit timed out, status 1003, PHY status 786d, resetting... Jun 21 05:05:02 ppp kernel: [ 7308.204254] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Jun 21 05:35:16 ppp kernel: [ 9121.303308] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 05:35:16 ppp kernel: [ 9121.303457] eth0: Transmit timed out, status 1003, PHY status 786d, resetting... Jun 21 05:35:16 ppp kernel: [ 9121.304106] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 This occurs shortly before the first occurance in the kernel log: Jun 21 04:29:46 ppp kernel: [ 5193.747505] irq 23: nobody cared (try booting with the "irqpoll" option) Jun 21 04:29:46 ppp kernel: [ 5193.747514] Pid: 0, comm: swapper Tainted: P        2.6.24-19-generic #1 Jun 21 04:29:46 ppp kernel: [ 5193.747516] Jun 21 04:29:46 ppp kernel: [ 5193.747517] Call Trace: Jun 21 04:29:46 ppp kernel: [ 5193.747519]  <IRQ>  [__report_bad_irq+0x1e/0x80] __report_bad_irq+0x1e/0x80 Jun 21 04:29:46 ppp kernel: [ 5193.747550]  [note_interrupt+0x2ad/0x2e0] note_interrupt+0x2ad/0x2e0 Jun 21 04:29:46 ppp kernel: [ 5193.747562]  [handle_fasteoi_irq+0xa1/0x110] handle_fasteoi_irq+0xa1/0x110 Jun 21 04:29:46 ppp kernel: [ 5193.747571]  [do_IRQ+0x7b/0x100] do_IRQ+0x7b/0x100 Jun 21 04:29:46 ppp kernel: [ 5193.747577]  [ret_from_intr+0x0/0x0a] ret_from_intr+0x0/0xa Jun 21 04:29:46 ppp kernel: [ 5193.747583]  [pci_conf1_read+0x0/0x100] pci_conf1_read+0x0/0x100 Jun 21 04:29:46 ppp kernel: [ 5193.747596]  [__do_softirq+0x60/0xe0] __do_softirq+0x60/0xe0 Jun 21 04:29:46 ppp kernel: [ 5193.747609]  [call_softirq+0x1c/0x30] call_softirq+0x1c/0x30 Jun 21 04:29:46 ppp kernel: [ 5193.747614]  [do_softirq+0x35/0x90] do_softirq+0x35/0x90 Jun 21 04:29:46 ppp kernel: [ 5193.747618]  [irq_exit+0x88/0x90] irq_exit+0x88/0x90 Jun 21 04:29:46 ppp kernel: [ 5193.747621]  [do_IRQ+0x80/0x100] do_IRQ+0x80/0x100 Jun 21 04:29:46 ppp kernel: [ 5193.747624]  [default_idle+0x0/0x40] default_idle+0x0/0x40 Jun 21 04:29:46 ppp kernel: [ 5193.747628]  [default_idle+0x0/0x40] default_idle+0x0/0x40 Jun 21 04:29:46 ppp kernel: [ 5193.747630]  [ret_from_intr+0x0/0x0a] ret_from_intr+0x0/0xa Jun 21 04:29:46 ppp kernel: [ 5193.747633]  <EOI>  [lapic_next_event+0x0/0x10] lapic_next_event+0x0/0x10 Jun 21 04:29:46 ppp kernel: [ 5193.747648]  [default_idle+0x29/0x40] default_idle+0x29/0x40 Jun 21 04:29:46 ppp kernel: [ 5193.747654]  [cpu_idle+0x6f/0xc0] cpu_idle+0x6f/0xc0 Jun 21 04:29:46 ppp kernel: [ 5193.747662]  [start_kernel+0x2c5/0x350] start_kernel+0x2c5/0x350 Jun 21 04:29:46 ppp kernel: [ 5193.747670]  [x86_64_start_kernel+0x12e/0x140] _sinittext+0x12e/0x140 Jun 21 04:29:46 ppp kernel: [ 5193.747678] Jun 21 04:29:46 ppp kernel: [ 5193.747679] handlers: Jun 21 04:29:46 ppp kernel: [ 5193.747680] [usbcore:usb_hcd_irq+0x0/0x60] (usb_hcd_irq+0x0/0x60 [usbcore]) Jun 21 04:29:46 ppp kernel: [ 5193.747702] [via_rhine:rhine_interrupt+0x0/0x7f0] (rhine_interrupt+0x0/0x7f0 [via_rhine]) Jun 21 04:29:46 ppp kernel: [ 5193.747710] Disabling IRQ #23 </div></div>As I said in the bug report comments, I am not using an Intel nic. My module is the via-rhine. as per lspci 00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 7c)     Subsystem: ASUSTeK Computer Inc. Unknown device 80ed     Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR+ FastB2B-     Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR-     Latency: 64 (750ns min, 2000ns max), Cache Line Size: 64 bytes     Interrupt: pin A routed to IRQ 23     Region 0: I/O ports at 9400 [size=256]     Region 1: Memory at dffff800 (32-bit, non-prefetchable) [size=256]     Capabilities: <access denied> Therefore: ppp@ppp:~$ sudo rmmod via-rhine ppp@ppp:~$ sudo modprobe via-rhine I like the idea of a workaround :) I had one, where I manually added the default gateway but that failed after another suggestion of hacking up the aspci conf so I need to go back to the original conf to retest. Will test your suggestions, thanks