Re: 2.2.15pre19 (gcc version 2.7.2.3) eth messages

From: Andrew Morton (andrewm@uow.edu.au)
Date: Wed Apr 19 2000 - 22:45:16 EDT

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    "Jeffrey E. Hundstad" wrote:
    >
    > I've placed 2.2.15pre19 on two of our servers. One is a SMB and ATALK
    > file server and the other is a Usenet news server. Both have identical
    > hardware. The ethernet card is a eepro100. The SMB/ATALK server is not
    > reporting any problems. The news server is spewing the following (below)
    > to syslog.
    > ...
    >
    > eth0: Printing Rx ring (next to receive into 936742, dirty index
    > 936734).
    >

    You're getting Tx timeouts.

    Andrey, I'm looking at these two statements in speedo_start_xmit():

            clear_suspend(sp->last_cmd);
            /* We want the time window between clearing suspend flag on the
    previous
               command and resuming CU to be as small as possible.
               Interrupts in between are very undesired. --SAW */
            outb(CUResume, ioaddr + SCBCmd);

    Is there a possibility that the write in clear_suspend() is still stuck
    in the CPU's write buffer when the NIC's DMA engine is unstalled?

    (Where does one find the eepro datasheet, BTW?) 

    -- 
-akpm-

    -
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