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[Po-Hsu Lin <2054362@xxxxxxxxxxxxxxxxxx>]

This issue has been fixed on 5.15.

** Changed in: linux (Ubuntu Jammy)
       Status: New => Fix Released

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https://bugs.launchpad.net/bugs/2054362

Title:
  ftrace:test.d--kprobe--kprobe_non_uniq_symbol.tc from
  ubuntu_kselftests_ftrace failed on 5.4 / 5.15

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Invalid
Status in linux source package in Focal:
  New
Status in linux source package in Jammy:
  Fix Released

Bug description:
  Issue found on B-hwe-5.4.0-173.191~18.04.1 F-5.4.0-173.191 and
  J-5.15.0-96.106, 5.15.0-100.110 in sru-20240205

  This kprobe_non_uniq_symbol.tc test case came from stable update (bug
  2049024) and landed in our Focal kernel since Ubuntu-5.4.0-173.191

  For Jammy it came from stable update (bug 2049350) and landed in our
  Jammy kernel since Ubuntu-5.15.0-96.106

  So this is not a regression, but a new test case.

  Test log:
   Running './ftracetest -vvv test.d/kprobe/kprobe_non_uniq_symbol.tc'
   === Ftrace unit tests ===
   + initialize_ftrace
   + disable_tracing
   + echo 0
   + reset_tracer
   + echo nop
   + reset_trigger
   + [ -d events/synthetic ]
   ...
   + read line
   ...
   + read line
   ...
   + reset_events_filter
   + read line
   ...
   + reset_ftrace_filter
   + [ ! -f set_ftrace_filter ]
   + echo
   + grep -v ^# set_ftrace_filter
   + read t
   + disable_events
   + echo 0
   + [ -f set_event_pid ]
   + echo
   + [ -f set_ftrace_pid ]
   + echo
   + [ -f set_ftrace_notrace ]
   + echo
   + [ -f set_graph_function ]
   [1] Test failure of registering kprobe on non unique symbol
   + echo
   + tee set_graph_function set_graph_notrace
   + [ -f stack_trace_filter ]
   + echo
   + [ -f kprobe_events ]
   + echo
   + [ -f uprobe_events ]
   + echo
   + [ -f synthetic_events ]
   + echo
   + [ -f snapshot ]
   + echo 0
   + clear_trace
   + echo
   + enable_tracing
   + echo 1
   + . /home/ubuntu/autotest/client/tmp/ubuntu_kselftests_ftrace/src/linux/tools/testing/selftests/ftrace/test.d/kprobe/kprobe_non_uniq_symbol.tc
   + SYMBOL=name_show
   + grep -c -E [[:alnum:]]+ t name_show /proc/kallsyms
   + [ 14 -le 1 ]
   + echo p:test_non_unique name_show
       [FAIL]

   # of passed:  0
   # of failed:  1
   # of unresolved:  0
   # of untested:  0
   # of unsupported:  0
   # of xfailed:  0
   # of undefined(test bug):  0

  I think we're probably missing
  https://github.com/torvalds/linux/commit/b022f0c7e404887a7c5229788fc99eff9f9a80d5

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