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

[Matt]

Cheers Balagopal! I was in the process of building my own kernel, which
looks to have worked - I got the rpms in the build directory.

But I followed your commands to enable me to build it under the Centos5 with
the lustre kernel source installed.  Working like a charm now!

How did you see if the interface was dropping frames?

On 07/11/2007, Balagopal Pillai <pillai at mathstat.dal.ca> wrote:
>
> Hi,
>
>        Now i remember what i did to build the bnx2 sources. Here is the
> part from Lustre Manual.
>
> "
>
> The kernel-source and lustre-source packages are provided in case you
> need to build external kernel modules or use additional network types.
> They are not required to run Lustre.
>
> Once you have your Lustre source tree you can build Lustre by running
> the sequence of commands given below.
>
>         $ cd <path to kernel tree>
>
>         $ cp /boot/config-'uname -r' .config
>
>         $ make oldconfig || make menuconfig
>
> # For 2.6 kernels
>
>         $ make include/asm
>
>         $ make include/linux/version.h
>
>         $ make SUBDIRS=scripts
>
> "
>
>                 This is it!!
>
>
> Regards
> Balagopal
>
>
>
>
>
> Matt wrote:
> > 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
> > <mailto: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
> >     >
> >     >
> >     >
> >     >
> >
> >     _______________________________________________
> >     Lustre-discuss mailing list
> >     Lustre-discuss at clusterfs.com <mailto:Lustre-discuss at clusterfs.com>
> >     https://mail.clusterfs.com/mailman/listinfo/lustre-discuss
> >
> >
>
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