Re: [xcat-user] xcat genesis kernel and mellanox ethernet cards

[Guang C. Li <lig...@cn...>]

HI,

The latest xCAT-genesis-base-x86_64 was generated on CentOS 6.6, we may
regenerate it on CentOS 6.7 when CentOS 6.7 is released later this year. If
the "modprobe" workaround is acceptable, let's leave
xCAT-genesis-base-x86_64 as it does today.

-------------------------------------------------------------------------
 Li,Guang Cheng (李光成)
 IBM China System Technology Laboratory
 Tel: 86-10-82453499
 Tie-Line: 9053499
 Email: lig...@cn...
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邮编: 100193




From:	Christopher Samuel <sa...@un...>
To:	xca...@li...
Date:	2015/05/20 11:20
Subject:	Re: [xcat-user] xcat genesis kernel and mellanox ethernet cards



On 20/05/15 03:50, Christopher J. Walker wrote:

>   I think what's happening is that although the mlx4_core driver is
> being loaded, the mlx4_en isn't - and having pxe/uefi network booted
> from the card, it can't see it - hence the node discovery process
hanging.

Would this be using a RHEL 6.6 kernel by some chance?

If so it's a kernel regression, RHEL 6.6 no longer loads mlx4_en when it
sees such a card, we've had to hard code a modprobe for that on our
login nodes. :-(

Red Hat support case 01283507 if anyone is interested (reported 7th
November last year, no fix yet).

All the best,
Chris
--
 Christopher Samuel        Senior Systems Administrator
 VLSCI - Victorian Life Sciences Computation Initiative
 Email: sa...@un... Phone: +61 (0)3 903 55545
 http://www.vlsci.org.au/      http://twitter.com/vlsci


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