[Lustre-discuss] Fwd: lustre 1.6.3 prod - client kernel panic

[Matt]

I think you guys are spot on, this client is running on a Dell 1950.

I'm in the process of rebuilding the box with the Centos 5 kernel along with
the source so I can patch it with lustre to build my own kernel and
obviously build the bnx2 driver.

I would obviously rather just use the lustre rpm's like I have been doing,
but was unable to build the bnx2 driver against the lustre kernel source.
I'm guessing because it's not complete.

If anyone knows any different then please say so.

Cheers,

Matt

On 07/11/2007, Balagopal Pillai <pillai at mathstat.dal.ca> wrote:
>
> Hi,
>
>             Looks like the broadcom driver issue to me too. I had the
> similar problem with kernel panic
> for the Lustre kernel on Dell pe1950 with Centos 4.5 and updating the
> bnx2 driver solved the issue.
> Also the interface has the tendency to drop frames. Increasing the rx
> ring parameters with ethtool
> fixes that problem.
>
>
> Regards
> Balagopal
>
> Bernd Schubert wrote:
> > Hi Matt,
> >
> > On Wednesday 07 November 2007 12:50:32 Matt wrote:
> >
> >> Hi folks,
> >>
> >> Built servers with Centos 5, and installed the lustre rhel5_x86 rpms
> >> successfully, modified grub and booted in to the new kernel.
> >>
> >> Configured a mgs/mdt two OSTs and a client.
> >>
> >> Now when running iozone from the client I always receive a kernel panic
> in
> >> the lines of:
> >>
> >> Call trace: <IRQ> [<ffffffff88149e4b>] : bnx2:bnx2_start_xmt+0x49/0x4d8
> >> Code: 49 8b 85 e8 00 00 00
> >> RIP [<ffffffff88146e91>] : bnx2:bnx2_poll+0xf7/0xb75 RSP <......>
> >> CR2: 0.....
> >>  <0> Kernel Panic - not syncing : Fatal Exception
> >>
> >> I have attached a screenshot.
> >>
> >> When I bounce the client and remount I can access the lustre fs fine,
> seems
> >> to be purely a client issue.
> >>
> >> Any ideas?
> >>
> >
> > looks very much like a bug in the broadcom nx2 driver. I would send it
> to
> > linux-netdev. And as a first try I would check whats happens when you
> disable
> > MSI for this driver.
> >
> > Cheers,
> > Bernd
> >
> >
> >
> >
>
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