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-   -   "Unknown symbol __fentry__ (err 0)" - loading compiled module on compiled kernel 3.18 (https://www.linuxquestions.org/questions/linux-kernel-70/unknown-symbol-__fentry__-err-0-loading-compiled-module-on-compiled-kernel-3-18-a-4175528799/)

Jason_25 12-19-2014 05:13 PM
"Unknown symbol __fentry__ (err 0)" - loading compiled module on compiled kernel 3.18
 
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I am seeing this error when loading a compiled module into my compiled kernel 3.18. This thread indicates that I need "CONFIG_FTRACE=y" in my kernel config: http://dpdk.org/ml/archives/dev/2014-July/004105.html .

Like the user in that thread, I have compiled the kernel with "CONFIG_FTRACE" turned on and I do not see "__fentry__" in /proc/kallsyms.

What could be going wrong here? I have attached my kernel config to assist in troubleshooting.

business_kid 12-25-2014 05:45 AM
Is the compiled module the for the same kernel version?


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