Re: hang with bnx(4) on amd64, ok on i386 - what's different?

[Joerg Sonnenberger <joerg%britannica.bec.de@localhost>]

On Thu, Sep 09, 2010 at 03:25:00PM -0400, Greg Troxel wrote:
> 
> We have some Dell R610s, with 4 bnx interfaces.  We are finding that
> with netbsd-5/amd64 using a single bnx interface is stable.  With two
> interfaces, the machine is very prone to a lockup.  ctrl-alt-esc doesn't
> work, but an NMI gets into ddb.  With netbsd-5/i386, all seems to be ok
> (once we raised NMBCLUSTERS).

How much memory does tha machine have?

> Hints I've heard about this are disabling management firmware (tried
> that) and avoiding MSI-X (haven't figured that out).

We currently don't use MSI-X.

Joerg