Re: NFS writes being corrupted?

[Jared McNeill <jmcneill%invisible.ca@localhost>]

On Sun, 9 Aug 2015, Jeff Rizzo wrote:

> This would seem to indicate a problem with the particular interface (awge0), 
> perhaps specific to the odroid-c1, as opposed to some l2 cache controller 
> issue, which is kind of where I was leaning before.  However, my banana pi 
> has awge0 as well, but does not exhibit this corruption.

The following awge patch fixes it for me:

Index: dwc_gmac.c
===================================================================
RCS file: /cvsroot/src/sys/dev/ic/dwc_gmac.c,v
retrieving revision 1.33
diff -u -p -r1.33 dwc_gmac.c
--- dwc_gmac.c	12 Jun 2015 11:54:39 -0000	1.33
+++ dwc_gmac.c	21 Aug 2015 18:43:13 -0000
@@ -917,7 +917,7 @@ dwc_gmac_queue(struct dwc_gmac_softc *sc
 	data->td_active = map;

 	bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize,
-	    BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
+	    BUS_DMASYNC_PREWRITE);

 	/* Pass first to device */
 	sc->sc_txq.t_desc[first].ddesc_status =