Re: selftests: ftrace: event filter function - test event filtering on functions [FAIL]

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Hi Naresh,

On Tue, 14 Mar 2023 15:52:44 +0530
Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> wrote:

> Results from Linaro’s test farm.
> 
> selftests ftrace failed on qemu-x86_64 and qemu-arm64.
> Please find the test log below.

Thanks for reporting!
Can you share the kernel config which you used for this build?
And the kernel is "next-20230314", is that correct?

> 
> Is this expected to fail ? Am I missing anything ?

No, it should be a bug. I would like to reproduce it.

Thank you,

> 
> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>
> 
> kselftest: Running tests in ftrace
> TAP version 13
> 1..1
> # selftests: ftrace: ftracetest
> # === Ftrace unit tests ===
> # [1] Basic trace file check [PASS]
> 
> ...
> 
> # [23] event filter function - test event filtering on functions [FAIL]
> 
> ...
> # [58] Kretprobe %return suffix test [PASS]
> # [59] Register/unregister many kprobe events
> [  431.662904] trace_kprobe: Could not probe notrace function startup_64
> [  431.669846] trace_kprobe: Could not probe notrace function _stext
> [  431.674104] trace_kprobe: Could not probe notrace function _text
> [  431.675908] trace_kprobe: Could not probe notrace function
> secondary_startup_64
> [  431.677876] trace_kprobe: Could not probe notrace function
> secondary_startup_64_no_verify
> [  431.679899] trace_kprobe: Could not probe notrace function __pfx_verify_cpu
> [  431.681738] trace_kprobe: Could not probe notrace function verify_cpu
> [  431.683667] trace_kprobe: Could not probe notrace function
> __pfx_sev_verify_cbit
> [  431.685594] trace_kprobe: Could not probe notrace function sev_verify_cbit
> [  431.687381] trace_kprobe: Could not probe notrace function start_cpu0
> [  431.689225] trace_kprobe: Could not probe notrace function __pfx___startup_64
> [  431.691223] trace_kprobe: Could not probe notrace function __startup_64
> [  431.693088] trace_kprobe: Could not probe notrace function
> __pfx_startup_64_setup_env
> [  431.695021] trace_kprobe: Could not probe notrace function
> startup_64_setup_env
> [  431.697012] trace_kprobe: Could not probe notrace function
> __pfx___traceiter_initcall_level
> [  431.700780] trace_kprobe: Could not probe notrace function
> __pfx___traceiter_initcall_start
> ...
> [  439.183587] trace_kprobe: Could not probe notrace function
> __pfx_hv_check_msr_access
> [  439.186192] trace_kprobe: Could not probe notrace function
> __pfx_kvm_hv_flush_tlb
> ...
> 
> # [106] (instance)  event filter function - test event filtering on
> functions [FAIL]
> 
> ...
> #
> # # of passed:  109
> # # of failed:  2
> # # of unresolved:  3
> # # of untested:  0
> # # of unsupported:  3
> # # of xfailed:  1
> # # of undefined(test bug):  0
> not ok 1 selftests: ftrace: ftracetest # exit=1
> 
> log link,
> https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20230314/testrun/15564370/suite/kselftest-ftrace/test/ftrace_ftracetest/log
> 
> --
> Linaro LKFT
> https://lkft.linaro.org


-- 
Masami Hiramatsu (Google) <mhiramat@xxxxxxxxxx>



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