Re: Re: Kernel Modules from Mellanox OFED Stack Won't Load

Hi,

I've created a patch similar to aalba6675's, and I've also added changes to the compat.mk file and compat-3.3.h header file in an effort to only activate the changes only for EL6 kernels starting with 2.6.32-358.10.

Judging from the EL6 kernel RPM changelog, the addition of __pskb_copy was made in 2.6.32-358.10.1.el6 by the introduction a patch similar to this one:

http://kernel.opensuse.org/cgit/kernel/commit/?id=117632e64d2a5f464e491fe221d7169a3814a77b 

In order to use the existing mlnx_add_kernel_support.sh script to create patch kernel-ib RPMs, the patch needs to be integrated into the MLNX_OFED_SRC tarball.  I'm using the following method to accomplish this:

1. Extract MLNX_OFED_SRC-2.0-2.0.5/SRPMS/ofa_kernel-2.0-OFED.2.0.2.0.5.g1593535.src.rpm from src/MLNX_OFED_SRC-2.0-2.0.5.tgz
2. Apply the patch to the contents of ofa_kernel-2.0.tgz
3. Rebuild ofa_kernel-2.0.tgz
4. Rebuild the source RPM using the modified specfile, and place it at MLNX_OFED_SRC-2.0-2.0.5/SRPMS/ofa_kernel-2.0-OFED.2.0.2.0.5.g1593535.src.rpm
5. Rebuild MLNX_OFED_SRC-2.0-2.0.5.tgz

I've performed basic functionality tests with this patch on 2.6.32-358.6.2.el6 and 2.6.32-358.14.1.el6 kernels, and have not yet found any problems.  I have not yet performed strenuous performance tests.

Larry