December 2021 - kernelnewbies@kernelnewbies.org

PCI: latency
by Subhashini Rao Beerisetty Dec. 6, 2021

Dec. 6, 2021

[ Please keep me in CC as I'm not subscribed to the list] Hi all, We are using the Linux OS on an x86_64 machine. I need to measure the PCIe latency on my system, does kernel have any latency measurement module for the PCIe bus? Thanks,

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pseudonymous or anonymous testing
by Tarif H Dec. 4, 2021

Dec. 4, 2021

Hi all, I know the official guidelines explicitly state that when submitting patches to the kernel the contributions must be signed with a real name and e-mail address, the reasons for this seem to be clear to me. The guidelines are less explicit when it comes to the tested-by field. Is it out of question to test a contribution and report the result using a pseudonym, even if it comes with a valid e-mail address? Thanks

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Compilation errors: unresolved symbol tcp_dctcp_kfunc_ids/tcp_cubic_kfunc_ids/tcp_bbr_kfunc_ids
by Dongliang Mu Dec. 2, 2021

Dec. 2, 2021

Hi all, I encountered one compilation error when compiling the latest upstream Linux kernel. WARN: resolve_btfids: unresolved symbol tcp_dctcp_kfunc_ids WARN: resolve_btfids: unresolved symbol tcp_cubic_kfunc_ids WARN: resolve_btfids: unresolved symbol tcp_bbr_kfunc_ids If you know the fix for this issue, please let me know. Thanks very much. BTW, the configuration file I used is attached to this email. -- My best regards to you. No System Is Safe! Dongliang Mu

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