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    Subjectipw3945: not only it periodically dies, it also BUG()s
    Hi!

    Under not-even-high load, it periodically restarts:

    Feb 5 21:08:50 amd kernel: iwl3945: Microcode SW error detected.
    Restarting 0x82000008.
    Feb 5 21:08:52 amd kernel: iwl3945: Can't stop Rx DMA.
    Feb 5 21:12:51 amd kernel: iwl3945: Microcode SW error detected.
    Restarting 0x82000008.
    Feb 5 21:12:53 amd kernel: iwl3945: Can't stop Rx DMA.
    Feb 5 21:21:44 amd kernel: iwl3945: Microcode SW error detected.
    Restarting 0x82000008.
    Feb 5 21:21:46 amd kernel: iwl3945: Can't stop Rx DMA.
    Feb 5 21:27:32 amd kernel: iwl3945: Microcode SW error detected.
    Restarting 0x82000008.
    Feb 5 21:27:34 amd kernel: iwl3945: Can't stop Rx DMA.
    Feb 5 21:41:29 amd -- MARK --
    Feb 5 22:01:29 amd -- MARK --
    Feb 5 22:09:11 amd kernel: iwl3945: Microcode SW error detected.
    Restarting 0x82000008.
    Feb 5 22:09:12 amd kernel: iwl3945: Can't stop Rx DMA.

    ...I've reported this before, with full debugging. Not sure if
    anything happened.

    Now, I got BUG() in iwl3945-base.c: 3824

    static void iwl3945_tx_cmd_complete(struct iwl3945_priv *priv,
    struct iwl3945_rx_mem_buffer *rxb)
    {
    struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet
    *)rxb->skb->data;
    u16 sequence = le16_to_cpu(pkt->hdr.sequence);
    int txq_id = SEQ_TO_QUEUE(sequence);
    int index = SEQ_TO_INDEX(sequence);
    int huge = sequence & SEQ_HUGE_FRAME;
    int cmd_index;
    struct iwl3945_cmd *cmd;

    /* If a Tx command is being handled and it isn't in the actual
    * command queue then there a command routing bug has been
    introduced
    * in the queue management code. */
    if (txq_id != IWL_CMD_QUEUE_NUM)
    IWL_ERROR("Error wrong command queue %d command id
    0x%X\n",
    txq_id, pkt->hdr.cmd);
    BUG_ON(txq_id != IWL_CMD_QUEUE_NUM);
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    Here. Any ideas?
    Pavel

    --
    (english) http://www.livejournal.com/~pavelmachek
    (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html


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