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Re: panic: bnx0 Double mbuf allocation failure!

On Tue, Jul 01, 2008 at 10:27:27AM +0000, Fredrik Carlsson wrote:
> Viktor Holmlund <viktor <at>> writes:
> > 
> > Hi,
> > 
> > I have problems wih my Dell PE 2950 (Perc 5/i) (FROST). The machine runs
> > exclusively database (mysql and postgresql) and after some days in
> > operation the machine turns into "panic-mode" and complains over "panic:
> > bnx0 Double mbuf allocation failure!". Previous the machine was running
> > NetBSD 4.0_BETA2 wihout any problems, but after we installed two
> > harddrives and upgraded the system to NetBSD 4.0_STABLE it has been more
> > unstable. I have tested to increase nmbclusters in the kernel, and
> > downgraded in revision for if_bnx.c to without any changes at all.
> > The best uptime I've got was 25 days, then it went into panic-mode again.
> > 
> We did a desperate upgrade to CURRENT in hope that this would fix the problem 
> ;)
> The machine became much faster but as soon as we put some load on, it panics 
> but
> still responds to ping. There is nothing in the logs after a power cycle.
> Is there anything we can do to help troubleshoot this, would a DEBUG-kernel
> help? We can supply ssh access if that would make it easier.
> The load that causes this is a MySQL import over the network, a lot of CPU, 
> disk
> access and nfs. The machine panics after 30-60 minutes into the import.

Do you have the panic message, and eventually the stack trace ?

Manuel Bouyer <>
     NetBSD: 26 ans d'experience feront toujours la difference

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