linux-kernel - [PATCH 0/2] ftrace/selftests: clean up failure cases

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Message-Id: <1581001760-29831-1-git-send-email-alan.maguire@oracle.com>
Date:   Thu,  6 Feb 2020 15:09:18 +0000
From:   Alan Maguire <alan.maguire@...cle.com>
To:     rostedt@...dmis.org, shuah@...nel.org, mhiramat@...nel.org
Cc:     mingo@...hat.com, linux-kselftest@...r.kernel.org,
        linux-kernel@...r.kernel.org, naveen.n.rao@...ux.vnet.ibm.com,
        colin.king@...onical.com
Subject: [PATCH 0/2] ftrace/selftests: clean up failure cases

When running the ftrace selftests, 2 failures and 6 unresolved
cases were observed.  The failures can be avoided by setting
a sysctl prior to test execution (fixed in patch 1) and the
unresolved cases result from absence of testing modules which
are built based on CONFIG options being set and program
availability (fixed in patch 2).

These seem more like "unsupported" than "unresolved" errors,
since for the ftrace tests "unresolved" cases cause the test
(and thus kselftest) to report failure.  With these changes
in place, the unresolved cases become unsupported and the
test failures disappear, resulting in the ftracetest program
exiting with "ok" status.

Alan Maguire (2):
  ftrace/selftests: workaround cgroup RT scheduling issues
  ftrace/selftest: absence of modules/programs should trigger
    unsupported errors

 tools/testing/selftests/ftrace/ftracetest          | 23 ++++++++++++++++++++++
 .../ftrace/test.d/direct/ftrace-direct.tc          |  2 +-
 .../ftrace/test.d/direct/kprobe-direct.tc          |  2 +-
 .../selftests/ftrace/test.d/event/trace_printk.tc  |  2 +-
 .../ftrace/test.d/ftrace/func_mod_trace.tc         |  2 +-
 .../ftrace/test.d/kprobe/kprobe_module.tc          |  2 +-
 .../selftests/ftrace/test.d/selftest/bashisms.tc   |  2 +-
 7 files changed, 29 insertions(+), 6 deletions(-)

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1.8.3.1