[dpdk-dev] Error while inserting module /build/kmod/igb_uio.ko

[Daniel, Christopher]

Actually I did not build the kernel. It is unmodified from the original centos download.
I also did not change any build parameters while building the module.
Used all the defaults from the download and executed the commands as in the quick start guide.
Is there something I can change and rebuild the dpk module ?
Thanks for your help

> On Jul 10, 2014, at 6:31 PM, "Chris Wright" <chrisw at redhat.com> wrote:
> 
> * Daniel, Christopher (Chris.Daniel at flukenetworks.com) wrote:
>> All,
>> 
>> I have the following configuration on my machine
>> 
>> Linux localhost.localdomain 3.12.6 #4 SMP Fri Dec 27 14:26:57 EST 2013 x86_64 x86_64 x86_64 GNU/Linux : Centos
>> 
>> 
>> 1)      Downloaded the latest version of DPK ( 1.7);
>> 
>> 
>> 2)      Executing the quick start instructions ( running gcc 4.7.x)
>> 
>> 
>> 
>> 3)      Having an issue with
>> 
>> 
>> 
>>      # insmod build/kmod/igb_uio.ko
>> 
>> I am getting
>> 
>> insmod: error inserting './build/kmod/igb_uio.ko': -1 Unknown symbol in module
>> 
>> dmesg:
>> igb_uio: Unknown symbol __fentry__ (err 0)
> 
> seems like you have built module w/ CONFIG_FTRACE and built kernel
> w/out.  did you manually set RTE_KERNELDIR when you built (if so, is it
> pointing to the right location?)
> 
> thanks,
> -chris