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

[Bernd Schubert]

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



-- 
Bernd Schubert
Q-Leap Networks GmbH