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SubjectRe: forcedeth problems on 2.6.20-rc6-mm3
David Ford wrote:
> On 2/5/07, *Andrew Morton* <akpm@linux-foundation.org
> <mailto:akpm@linux-foundation.org>> wrote:
>
> On Sun, 04 Feb 2007 23:48:33 -0600 Robert Hancock <hancockr@shaw.ca
> <mailto:hancockr@shaw.ca>> wrote:
>
> > Andrew Morton wrote:
> > > On Sun, 04 Feb 2007 23:13:09 -0600 Robert Hancock <
> hancockr@shaw.ca <mailto:hancockr@shaw.ca>> wrote:
> > >
> > >> Something's busted with forcedeth in 2.6.20-rc6-mm3 for me
> relative to
> > >> 2.6.20-rc6. There's no errors in dmesg, but it seems no
> packets ever get
> > >> received and so the machine can't get an IP address. I tried
> reverting
> > >> all the -mm changes to drivers/net/forcedeth.c, which didn't
> help. The
> > >> network controller shares an IRQ with the USB OHCI controller
> which is
> > >> receiving interrupts, so it doesn't seem like an interrupt routing
> > >> problem, though I suppose something wierd could be happening
> there.
> > >>
> > >> This is on an Asus A8N-SLI Deluxe (CK804 chipset) on x86_64.
> > >>
> > >> Any suggestions on how to debug/what to try reverting to see
> what's
> > >> causing this?
> > >
> > > There are many forcedeth changes in git-netdev-all.patch. Can you
> > > try reverting drivers/net/forcedeth.c back to the unpatched version
> > > from 2.6.20-rc6?
> > >
> > > Thanks.
> > >
> >
> > That's essentially what I did, it didn't appear to help. I assume
> the
> > problem must lie elsewhere..
> >
>
> doh, I missed that.
>
> It's presumably not the driver and nobody else seems to be hitting
> this, so
> it must be something peculiar to your setup. But I don't know what it
> might be, sorry.
>
>
>
> Actually it has been reported by several other people here including
> myself but it seems to have been overlooked here ;)
>
> See the messages with forcedeth in the subject line over the past few
> weeks.
>
> I put 2.6.20-gentoo on my machine this weekend with debug printks
> enabled and right now I have yet to lose connectivity -- going on ~20
> hours worth.
>
> Previously I would lose connectivity within minutes of booting up. I
> had a script set up that detected the ping loss of a gateway and would
> restart both interfaces (dual onboard nics).
>
> Tonight I will disable the debug printks and see if the system remains
> online. There was a big patch applied to forcedeth for 2.6.20,
> previously I was having these issues for several of the -19 series.
>
> David

For all those who are having issues, please try out the attached patch.

Ayaz


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-----------------------------------------------------------------------------------
--- orig/drivers/net/forcedeth.c 2007-02-08 21:41:59.000000000 -0500
+++ new/drivers/net/forcedeth.c 2007-02-08 21:44:53.000000000 -0500
@@ -3104,13 +3104,17 @@
struct fe_priv *np = netdev_priv(dev);
u8 __iomem *base = get_hwbase(dev);
unsigned long flags;
+ u32 retcode;

- if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2)
+ if (np->desc_ver == DESC_VER_1 || np->desc_ver == DESC_VER_2) {
pkts = nv_rx_process(dev, limit);
- else
+ retcode = nv_alloc_rx(dev);
+ } else {
pkts = nv_rx_process_optimized(dev, limit);
+ retcode = nv_alloc_rx_optimized(dev);
+ }

- if (nv_alloc_rx(dev)) {
+ if (retcode) {
spin_lock_irqsave(&np->lock, flags);
if (!np->in_shutdown)
mod_timer(&np->oom_kick, jiffies + OOM_REFILL);
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