[ofa-general] [PATCH] IPoIB: keep ib_wc[] on stack

[Eli Cohen]

On Wed, 2008-05-14 at 07:05 -0700, akepner at sgi.com wrote:
> On Wed, May 14, 2008 at 10:25:48AM +0300, Eli Cohen wrote:
> 
> > On Tue, 2008-05-13 at 18:21 -0700, akepner at sgi.com wrote:
> > > We're getting panics like this one on big clusters:
> > > 
> > > skb_over_panic: text:ffffffff8821f32e len:160 put:100 head:ffff810372b0f000 data:ffff810372b0f01c tail:ffff810372b0f0bc end:ffff810372b0f080 dev:ib0
> > 
> > RX SKBs are large enough to contain 100 bytes... this looks like
> > corruption. 
> 
> Exactly.
One thing that can help discover memory corruptions and other bug is to
use a debug kernel. Is it possible that you will configure a few nodes
for debug kernel?