* Ingo Molnar <[EMAIL PROTECTED]> wrote: > the e1000 in this laptop is historically pretty robust. The only > problem i ever had with it were some rx/tx hw-engine latency problems > [pings from the outside took up to 1 second to propagate] that were > quickly fixed by the e1000 driver guys. Maybe that's related. > (although it never caused total inavailability of networking - it was > only latency problems)
i've Cc:-ed Auke - maybe he has some ideas? I've also attached all the other possibly relevant ethtool dumps of eth0 below, done when the hung interface happens. (Auke, see more details about this problem in this thread on lkml.) another thing: how can i make the tx timeout much longer than it is right now? Maybe an interrupt is delayed for long and we just dont tolerate things long enough - and once the device tx timeout has been noticed we kill the interface from subsequent use in essence? there's one oddity i noticed: 0x02810: RDH (Receive desc head) 0x00000000 0x02818: RDT (Receive desc tail) 0x000000FE 0x03810: TDH (Transmit desc head) 0x00000000 0x03818: TDT (Transmit desc tail) 0x00000000 doesnt this suggest that we have a receive packet, just the irq didnt come and we didnt process it? although .. the tx timeout disabled the transmitter and the receiver of the device, correct? That in itself could have destroyed any evidence of what happened earlier on. But ... i'm really only guessing here. Ingo ------------------------------------> MAC Registers ------------- 0x00000: CTRL (Device control register) 0x00140248 Endian mode (buffers): little Link reset: reset Set link up: 1 Invert Loss-Of-Signal: no Receive flow control: disabled Transmit flow control: disabled VLAN mode: disabled Auto speed detect: disabled Speed select: 1000Mb/s Force speed: no Force duplex: no 0x00008: STATUS (Device status register) 0x80080783 Duplex: full Link up: link config TBI mode: disabled Link speed: 1000Mb/s Bus type: PCI Bus speed: 33MHz Bus width: 32-bit 0x00100: RCTL (Receive control register) 0x00008002 Receiver: enabled Store bad packets: disabled Unicast promiscuous: disabled Multicast promiscuous: disabled Long packet: disabled Descriptor minimum threshold size: 1/2 Broadcast accept mode: accept VLAN filter: disabled Cononical form indicator: disabled Discard pause frames: filtered Pass MAC control frames: don't pass Receive buffer size: 2048 0x02808: RDLEN (Receive desc length) 0x00001000 0x02810: RDH (Receive desc head) 0x00000000 0x02818: RDT (Receive desc tail) 0x000000FE 0x02820: RDTR (Receive delay timer) 0x00000000 0x00400: TCTL (Transmit ctrl register) 0x310000F8 Transmitter: disabled Pad short packets: enabled Software XOFF Transmission: disabled Re-transmit on late collision: enabled 0x03808: TDLEN (Transmit desc length) 0x00001000 0x03810: TDH (Transmit desc head) 0x00000000 0x03818: TDT (Transmit desc tail) 0x00000000 0x03820: TIDV (Transmit delay timer) 0x00000008 PHY type: M88 Offset Values ------ ------ 0x0000 00 16 41 17 49 d2 30 0b b2 ff 51 00 ff ff ff ff 0x0010 53 00 03 01 6b 02 01 20 aa 17 9a 10 86 80 df 80 0x0020 00 00 00 20 54 7e 00 00 14 00 da 00 04 00 00 27 0x0030 c9 6c 50 31 3e 07 0b 04 8b 29 00 00 00 f0 02 0f 0x0040 08 10 00 00 04 0f ff 7f 01 4d ff ff ff ff ff ff 0x0050 14 00 1d 00 14 00 1d 00 af aa 1e 00 00 00 1d 00 0x0060 00 01 00 40 1f 12 07 40 ff ff ff ff ff ff ff ff 0x0070 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ef 9f Ring parameters for eth0: Pre-set maximums: RX: 4096 RX Mini: 0 RX Jumbo: 0 TX: 4096 Current hardware settings: RX: 256 RX Mini: 0 RX Jumbo: 0 TX: 256 driver: e1000 version: 7.3.20-k2-NAPI firmware-version: 0.5-1 bus-info: 0000:02:00.0 Offload parameters for eth0: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp segmentation offload: on udp fragmentation offload: off generic segmentation offload: off NIC statistics: rx_packets: 0 tx_packets: 591 rx_bytes: 0 tx_bytes: 58116 rx_broadcast: 0 tx_broadcast: 0 rx_multicast: 0 tx_multicast: 0 rx_errors: 0 tx_errors: 0 tx_dropped: 0 multicast: 0 collisions: 0 rx_length_errors: 0 rx_over_errors: 0 rx_crc_errors: 0 rx_frame_errors: 0 rx_no_buffer_count: 0 rx_missed_errors: 0 tx_aborted_errors: 0 tx_carrier_errors: 0 tx_fifo_errors: 0 tx_heartbeat_errors: 0 tx_window_errors: 0 tx_abort_late_coll: 0 tx_deferred_ok: 0 tx_single_coll_ok: 0 tx_multi_coll_ok: 0 tx_timeout_count: 1 tx_restart_queue: 0 rx_long_length_errors: 0 rx_short_length_errors: 0 rx_align_errors: 0 tx_tcp_seg_good: 0 tx_tcp_seg_failed: 0 rx_flow_control_xon: 0 rx_flow_control_xoff: 0 tx_flow_control_xon: 0 tx_flow_control_xoff: 0 rx_long_byte_count: 0 rx_csum_offload_good: 0 rx_csum_offload_errors: 0 rx_header_split: 0 alloc_rx_buff_failed: 0 tx_smbus: 0 rx_smbus: 0 dropped_smbus: 0 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/