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Why do the profile tools fail to open the vmlinux kernel image ?

fail image Kernel profile tools
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Why do the profile tools fail to open the vmlinux kernel image ?

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Probably because you have accidentally specified the vmlinuz not vmlinux file. If you don’t have a vmlinux file you need to recompile your kernel from source. If you’re not doing kernel profiling, you can use opcontrol –no-vmlinux.

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