UCS B-series :enic driver version 2.1.1.41 is causing kernel panic for RHEL5.7

[yogeshkhare]

The enic driver version 2.1.1.41 which comes with driver iso ucs-bxxx-drivers.2.1.1a is resulting in Kernel panic for RHEL5.7

When RHEL5.7 OS is installed, the kernel version that gets loaded with the iso that I have is 2.6.18-274.el5 x86_64 whereas the kernel version expected by the enic driver provided by Cisco is  2.6.18-164.el5(supported distribution).  The Cisco documentation says : If kernel version does not match, the enic RPM cannot be installed.

The enic driver that comes with OS is  ver 2.1.1.9 whereas the one Cisco provides is ver 2.1.1.41 . The system crashes for non-matching distribution after loading the driver version 2.1.1.41 .

[padramas]

Hello Yogesh,

I looked up kernel bundled with RHEL 5.7 and it is shipped with " kernel-2.6.18-274.el5.x86_64.rpm " version

ftp://ftp.redhat.com/redhat/linux/enterprise/5Server/en/os/SRPMS/

http://www.redhat.com/archives/rhelv5-announce/2011-July/msg00000.html

Then README_rpm file says it is supported with above RHEL 5.7 kernel version

Can you please provide output of following commands from your system

uname -a

cat /etc/redhat-release

Thanks

Padma

[yogeshkhare]

Here are some other details:

root@rhel57 cisco]# rpm -ivh kmod-enic-rhel5u7-2.1.1.41-1.0.x86_64.rpm

Preparing...                ########################################### [100%]

   1:kmod-enic-rhel5u7      ########################################### [100%]

[root@rhel57 cisco]# rpm -qa | grep enic

kmod-enic-rhel5u7-2.1.1.41-1.0

[root@rhel57 cisco]# /sbin/lsmod | grep enic

enic                   79425  0

8021q                  58321  2 cxgb3,enic

Thanks,

Yogesh

[yogeshkhare]

[root@rhel57 ~]# uname -a
Linux rhel57 2.6.18-274.el5 #1 SMP Fri Jul 8 17:36:59 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux
[root@rhel57 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 5.7 (Tikanga)

[padramas]

Hello Yogesh,

The kernel you are running is not the one shipped with RHEL 5.7 64 bit edition.

Can you please check ( grub.conf ) if you are booting the OS with correct kernel ?

Is it 64 bit edition ?

Padma

[yogeshkhare]

Hi Padma,

It is the iso  "rhel-server-5.7-x86_64-dvd" that I installed resulted in loading the kernl 2.6.18-274.x86-64. Yes, I am booting with the correct Kernel and running the command "uname -a" shows the kernel loaded and that is a 64 bit version(x86_64) If you will go through the documentation that comes with the driver iso for the enic driver you will understand the problem better. The enic driver is expecting the kernel "2.6.18-274.el5".

Thanks,

Yogesh

[padramas]

Hello Yogesh,

RHEL 5.7 x64 bit installed with 2.6.18-274.el5 kernel version

ENIC driver 2.1.1.41 from ucs-bxxx-drivers.2.1.1c.iso bundle expects RHEL 5.7 (kernel 2.6.18-274.el5 x86_84)

Update of driver completed successfully.

Please refer the attached text file.

If you still have issues, please open a TAC service request.

Padma

[yogeshkhare]

Hi Padma,

Would you please send me the rhel5.7 OS iso, I would like to install that and give it another try.

Thanks,

Yogesh

[yogeshkhare]

Hi Padma,

Please do send me the rhel5.7 iso file that I can try. By the way did you reboot the system after loading the enic driver? The kernel panic happens when server is rebooted after loading the driver.

Thanks,

Yogesh

[padramas]

Hello Yogesh,

Unfortunately, Cisco cannot provide / publish RHEL image.

If the system is running correct kernel / driver packages but experiences panic, please open a TAC service request to further investigate the problem.

Padma