Thanks again Daniel, very much appreciated. Ive been through my CMOS settings but unfortunately no joy.
So I have been doing more research and I think Im narrowing it down now. In summary I think: After a period of no network use, ACPI thinks IRQ 23 isnt needed ACPI turns off IRQ 23 eth0 times out and wont come back without reboot ifdown/ifup wont fix it Im yet to test manually unloading and reloading the module for my Via rhine II nic to see if that brings it back without reboot. Just waiting for the timeout. Jun 21 03:04:07 ppp kernel: [ 57.447218] eth0: no IPv6 routers present 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 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 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 Jun 21 06:05:32 ppp kernel: [10936.402170] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 06:05:32 ppp kernel: [10936.402319] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 06:05:32 ppp kernel: [10936.402968] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Jun 21 06:12:40 ppp kernel: [11364.189787] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 06:12:40 ppp kernel: [11364.189937] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 06:12:40 ppp kernel: [11364.190589] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Jun 21 06:36:06 ppp kernel: [12769.492097] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 06:36:06 ppp kernel: [12769.492247] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 06:36:06 ppp kernel: [12769.492892] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Jun 21 07:06:22 ppp kernel: [14584.590959] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 07:06:22 ppp kernel: [14584.591109] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 07:06:22 ppp kernel: [14584.591757] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Jun 21 07:36:36 ppp kernel: [16397.690817] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 07:36:36 ppp kernel: [16397.690967] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 07:36:36 ppp kernel: [16397.691615] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1 Jun 21 08:06:54 ppp kernel: [18214.788695] NETDEV WATCHDOG: eth0: transmit timed out Jun 21 08:06:54 ppp kernel: [18214.788846] eth0: Transmit timed out, status 0003, PHY status 786d, resetting... Jun 21 08:06:54 ppp kernel: [18214.789492] eth0: link up, 100Mbps, full-duplex, lpa 0x45E1
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