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linux_kselftest-fixes-6.9-rc5

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This kselftest fixes update for Linux 6.9-rc5 consists of a fix to
 kselftest harness to prevent infinite loop triggered in an assert
 in FIXTURE_TEARDOWN and a fix to a problem seen in being able to stop
 subsystem-enable tests when sched events are being traced.
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Merge tag 'linux_kselftest-fixes-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fixes from Shuah Khan:
 "A fix to kselftest harness to prevent infinite loop triggered in an
  assert in FIXTURE_TEARDOWN and a fix to a problem seen in being able
  to stop subsystem-enable tests when sched events are being traced"

* tag 'linux_kselftest-fixes-6.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests/harness: Prevent infinite loop due to Assert in FIXTURE_TEARDOWN
  selftests/ftrace: Limit length in subsystem-enable tests
This commit is contained in:
Linus Torvalds 2024-04-15 10:08:10 -07:00
commit 3fdfcd98f0
2 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/testing/selftests/ftrace/test.d/event/subsystem-enable.tc
View File

@ -18,7 +18,7 @@ echo 'sched:*' > set_event
yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -lt 3 ]; then
fail "at least fork, exec and exit events should be recorded"
fi
@ -29,7 +29,7 @@ echo 1 > events/sched/enable
yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -lt 3 ]; then
fail "at least fork, exec and exit events should be recorded"
fi
@ -40,7 +40,7 @@ echo 0 > events/sched/enable
yield
count=`cat trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
count=`head -n 100 trace | grep -v ^# | awk '{ print $5 }' | sort -u | wc -l`
if [ $count -ne 0 ]; then
fail "any of scheduler events should not be recorded"
fi

5
tools/testing/selftests/kselftest_harness.h
View File

@ -383,6 +383,7 @@
FIXTURE_DATA(fixture_name) self; \
pid_t child = 1; \
int status = 0; \
bool jmp = false; \
memset(&self, 0, sizeof(FIXTURE_DATA(fixture_name))); \
if (setjmp(_metadata->env) == 0) { \
/* Use the same _metadata. */ \
@ -399,8 +400,10 @@
_metadata->exit_code = KSFT_FAIL; \
} \
} \
else \
jmp = true; \
if (child == 0) { \
if (_metadata->setup_completed && !_metadata->teardown_parent) \
if (_metadata->setup_completed && !_metadata->teardown_parent && !jmp) \
fixture_name##_teardown(_metadata, &self, variant->data); \
_exit(0); \
} \