On 11/12/2014 9:10 AM, Gedare Bloom wrote: > Are there still tests for when the lock would be held despite the > context switch? Just want to make sure we're not removing some > test-case. That wasn't the purpose of this test. It was to abuse the affinity algorithm and cause migrations. Daniel Cederman found a bug in the semaphore used to protect the data used to control the threads and migration.
If you have another scenario in mind, please post it so we can at least file a PR to add the case. --joel > On Wed, Nov 12, 2014 at 9:48 AM, Jennifer Averett > <[email protected]> wrote: >> Change semaphore attributes to resolve problem where semaphore is not >> released upon a context switch. >> --- >> testsuites/smptests/smpschedaffinity05/init.c | 9 +++------ >> 1 file changed, 3 insertions(+), 6 deletions(-) >> >> diff --git a/testsuites/smptests/smpschedaffinity05/init.c >> b/testsuites/smptests/smpschedaffinity05/init.c >> index 754c226..9fddb58 100644 >> --- a/testsuites/smptests/smpschedaffinity05/init.c >> +++ b/testsuites/smptests/smpschedaffinity05/init.c >> @@ -145,14 +145,11 @@ static void test(void) >> sc = rtems_semaphore_create( >> rtems_build_name('S', 'E', 'M', '0'), >> 1, /* initial count = 1 */ >> - RTEMS_LOCAL | >> - RTEMS_SIMPLE_BINARY_SEMAPHORE | >> - RTEMS_NO_INHERIT_PRIORITY | >> - RTEMS_NO_PRIORITY_CEILING | >> - RTEMS_FIFO, >> + RTEMS_BINARY_SEMAPHORE | >> + RTEMS_MULTIPROCESSOR_RESOURCE_SHARING, >> 0, >> &task_sem >> - ); >> + ); >> rtems_test_assert(sc == RTEMS_SUCCESSFUL); >> >> >> -- >> 1.8.1.4 >> >> _______________________________________________ >> devel mailing list >> [email protected] >> http://lists.rtems.org/mailman/listinfo/devel > _______________________________________________ > devel mailing list > [email protected] > http://lists.rtems.org/mailman/listinfo/devel -- Joel Sherrill, Ph.D. Director of Research & Development [email protected] On-Line Applications Research Ask me about RTEMS: a free RTOS Huntsville AL 35805 Support Available (256) 722-9985 _______________________________________________ devel mailing list [email protected] http://lists.rtems.org/mailman/listinfo/devel
