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From: linuxppc <linuxppc@4bridgeworks.com>
To: Linux PPC Dev <linuxppc-dev@ozlabs.org>
Date: Thu, 21 Oct 2004 15:20:55 +0100
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Subject: Problem with PPC 440 GX Transmit Path
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I have found a problem with the driver for the PPC440GX (ibm_emac), while
reading from the PPC (OCOTEA) BOX doesn't always transmit the last packet, I
have managed to get it to continue by pinging it or from it, or if the root
filesystem is mounted as nfs (I am assuming communications using nfs use a
keepalive test or equivalent). I have also found that by turning on the
debug options in ibm_emac_core.c (PKT_DEBUG) fixes the problem!! I have
removed all but one of the debug messages and as long as they are in the tx
functions (not the rx functions) I have no problems. Any help or guidance
will be appreciated, for now I am going to try and implement gdb.....

Daren