On Tue, Nov 25, 2008 at 8:19 AM, Matt Sealey <m...@genesi-usa.com> wrote: > > > On Tue, Nov 25, 2008 at 8:45 AM, Lehmann, Hans (Ritter Elektronik) > <hans.lehm...@ritter-elektronik.de> wrote: >> >> Tim, Grant, >> >> just an info. >> >> Very often the Bestcomm-FEC crashed without any error logs if I initiate a >> transaction over FEC and save the file to disk (I rememeber I have read >> something like that). A restart of FEC don't work. >> But no I figured out, if I connect to the other ethernet port of our board >> (natsemi) the FEC will awake to life again, if I initiate a new transaction >> over natsemi. This seems a little oddly to me. > > Hi guys, > > We tried to get the SUSE guys to push the patch into openSUSE 11.1 release > and the tests came back negative here too with regards to FEC support; for > some odd reason, it does this; > > https://bugzilla.novell.com/show_bug.cgi?id=445856#c10 > > There is some weird interaction here, but I can't imagine what it might be. > Tim, did you ever see any ethernet problems like this?
It looks like something getting messed up during allocation of buffers and not DMA operation related at all. I don't see the problem here... Digging deeper I think the problem is due to this: > ------- Comment #6 From Olaf Hering 2008-11-18 01:32:52 MST ------- > > Also, the patches do not seem to apply and compile with our kernel-source. > bcom_task->bd changed to void*, this breaks sound/ppc/mpc52xx_ac97.c. It looks > like an unneeded cosmetic change. > The Kconfig changes are appearently also not required for an existing .config. > > I removed the bcom_task->bd change. The patch does depend on bcom_task->bd being (void *). Without it the calculation of BD offsets is entirely wrong in bcom_get_bd(). That being said, the next version of the patch will leave the pointer as (bcom_bd *) and handle the offset calculation in a different way. g. -- Grant Likely, B.Sc., P.Eng. Secret Lab Technologies Ltd. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
