bpftool: add kernel.kptr_restrict hint for no instructions #5709
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from bpftool github repo issue [0], when Linux distribution kernel.kptr_restrict is set to 2, bpftool prog dump jited returns "no instructions returned", this message can be puzzling to bpftool users who is not familiar with kernel BPF internal, so add small hint for bpftool users to check kernel.kptr_restrict setting. Set kernel.kptr_restrict to expose kernel address to allow bpftool prog dump jited to dump the jited bpf program instructions. [0]: libbpf/bpftool#184 Signed-off-by: Vincent Li <[email protected].
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At least one diff in series https://patchwork.kernel.org/project/netdevbpf/list/?series=989432 expired. Closing PR. |
Pull request for series with
subject: bpftool: add kernel.kptr_restrict hint for no instructions
version: 1
url: https://patchwork.kernel.org/project/netdevbpf/list/?series=989432