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

From: Naresh Kamboju
Date: Tue Mar 14 2023 - 06:23:51 EST


Results from Linaro’s test farm.

selftests ftrace failed on qemu-x86_64 and qemu-arm64.
Please find the test log below.

Is this expected to fail ? Am I missing anything ?

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