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Problem Report 1089 Details

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Report 1089 Actions Problem Report Number 1089 Submitter's Classification Test Suite problem State Resolved Resolution Rejected (REJ) Problem Resolution ID REJ.X.0304 Raised 1999-11-12 08:00 Updated 2003-03-13 08:00 Published null Product Standard Internationalised System Calls and Libraries Extended V2 (UNIX 98) Certification Program The Open Brand certification program Test Suite VSRT version 5.0.3 Test Identification rt.os/aio/lio_listio 17 Problem Summary PG4R.00018 Intermittent failures due to timing problems. Problem Text This request concerns the following test cases: 4 rt.os/aio/lio_listio/T.lio_listio 9 Failed 8 rt.os/aio/lio_listio/T.lio_listio 10 Failed 3 rt.os/aio/lio_listio/T.lio_listio 17 Failed 7 rt.os/aio/lio_listio/T.lio_listio 27 Failed 3 rt.os/aio/lio_listio/T.lio_listio 44 Failed 11 rt.os/aio/aio_fsync/T.aio_fsync 1 Failed 11 rt.os/aio/aio_fsync/T.aio_fsync 4 Failed 7 rt.os/aio/aio_fsync/T.aio_fsync 9 Failed The failures occur intermittently. The left column above shows the number of instances of each failure in sixteen iterations of the test. The failures do not occur on faster hardware implementations. In each case, several I/O operations are started and expected to be complete by the time a "sleep()", usually "sleep(2)", times out. On slower hardware this sometimes does not occur. The tests pass if the sleep() value is increased. Perhaps it would be best to tie all the sleep() values in the suite to SPEEDFACTOR or a new parameter in tetexec.cfg. This request also applies to cases with numerically different results: cases where different numbers of signals are missed but the failure mechanism is the same. Test Output 10|0 /tset/rt.os/aio/lio_listio/T.lio_listio 10:22:16|TC Start, scenario ref 1-0 15|0 3.2-lite 45|TCM Start ... 200|0 9 10:23:29|TP Start 520|0 9 000390808 1 1|> test with pipe 520|0 9 000390808 2 1|> test with pty 520|0 9 000390808 3 1|> test with tty 520|0 9 000390808 3 2|tty testing not configured 520|0 9 000390808 3 3|> test with pipe 520|0 9 000390852 1 1|Expected 13 signals, received 12 520|0 9 000390808 4 1|> test with pty 520|0 9 000390808 5 1|> test with tty 520|0 9 000390808 5 2|tty testing not configured 220|0 9 1 10:23:46|FAIL ... 200|2 10 10:27:53|TP Start 520|2 10 000390960 1 1|> test with pipe 520|2 10 000390960 2 1|> test with pty 520|2 10 000390960 3 1|> test with tty 520|2 10 000390960 3 2|tty testing not configured 520|2 10 000390960 3 3|> test with pipe 520|2 10 000391010 1 1|Expected 13 signals, received 12 520|2 10 000390960 4 1|> test with pty 520|2 10 000390960 5 1|> test with tty 520|2 10 000390960 5 2|tty testing not configured 220|2 10 1 10:28:06|FAIL ... 200|4 17 10:34:07|TP Start 520|4 17 000391113 1 1|> test with pipe 520|4 17 000391179 1 1|Expected 25 signals, received 23 520|4 17 000391113 2 1|> test with pty 520|4 17 000391113 3 1|> test with tty 520|4 17 000391113 3 2|tty testing not configured 220|4 17 1 10:34:08|FAIL ... 200|2 44 10:29:13|TP Start 520|2 44 000390960 1 1|INFO: No limit on AIO_MAX 520|2 44 000390960 1 2|> test with pipe 520|2 44 000390960 2 1|> test with pty 520|2 44 000390960 3 1|> test with tty 520|2 44 000390960 3 2|tty testing not configured 520|2 44 000390960 3 3|> test with pipe 520|2 44 000390960 4 1|> test with pty 520|2 44 000391084 1 1|request 0 is still in progress 520|2 44 000391084 1 2|request 1 is still in progress 520|2 44 000391084 1 3|request 2 is still in progress 520|2 44 000391084 1 4|request 3 is still in progress 520|2 44 000391084 1 5|request 4 is still in progress 520|2 44 000391084 1 6|request 5 is still in progress 520|2 44 000391084 1 7|request 6 is still in progress 520|2 44 000391084 1 8|request 7 is still in progress 520|2 44 000391084 1 9|request 8 is still in progress 520|2 44 000391084 1 10|request 9 is still in progress 520|2 44 000391084 1 11|request 10 is still in progress 520|2 44 000391084 1 12|request 11 is still in progress 520|2 44 000391084 1 13|request 12 is still in progress 520|2 44 000391084 1 14|request 13 is still in progress 520|2 44 000391084 1 15|request 14 is still in progress 520|2 44 000391084 1 16|request 15 is still in progress 520|2 44 000391084 1 17|request 17 is still in progress 520|2 44 000391084 1 18|request 18 is still in progress 520|2 44 000391084 1 19|request 19 is still in progress 520|2 44 000391084 1 20|request 20 is still in progress 520|2 44 000391084 1 21|request 21 is still in progress 520|2 44 000391084 1 22|request 22 is still in progress 520|2 44 000391084 1 23|request 24 is still in progress 520|2 44 000390960 5 1|> test with tty 520|2 44 000390960 5 2|tty testing not configured 220|2 44 1 10:30:42|FAIL ... 10|1 /tset/rt.os/aio/aio_fsync/T.aio_fsync 10:25:09|TC Start, scenario ref 2-0 15|1 3.2-lite 13|TCM Start 400|1 1 1 10:25:09|IC Start 200|1 1 10:25:09|TP Start 520|1 1 000390933 1 1|INFO: No limit on AIO_MAX 520|1 1 000390933 1 2|> test with pipe 520|1 1 000390933 2 1|> test with pty 520|1 1 000390936 1 1|Expected 10 signals from aio_reads, received 9 520|1 1 000390933 3 1|> test with tty 520|1 1 000390933 3 2|tty testing not configured 520|1 1 000390933 3 3|> test with file 220|1 1 1 10:25:20|FAIL ... 400|1 4 1 10:25:48|IC Start 200|1 4 10:25:48|TP Start 520|1 4 000390933 1 1|INFO: No limit on AIO_MAX 520|1 4 000390933 1 2|> test with pipe 520|1 4 000390933 2 1|> test with pty 520|1 4 000390948 1 1|Expected 10 signals from aio_reads, received 9 520|1 4 000390933 3 1|> test with tty 520|1 4 000390933 3 2|tty testing not configured 520|1 4 000390933 3 3|> test with file 220|1 4 1 10:26:03|FAIL 410|1 4 1 10:26:03|IC End ... 200|1 9 10:26:17|TP Start 520|1 9 000390933 1 1|INFO: No limit on AIO_MAX 520|1 9 000390933 1 2|> test with pipe 520|1 9 000390954 1 1|Expected 10 signals from aio_reads, received 9 520|1 9 000390933 2 1|> test with pty 520|1 9 000390933 3 1|> test with tty 520|1 9 000390933 3 2|tty testing not configured 520|1 9 000390933 3 3|> test with file 220|1 9 1 10:26:32|FAIL 410|1 9 1 10:26:32|IC End Review Information Review Type TSMA Review Start Date null Completed null Status Complete Review Recommendation No Resolution Given Review Response There does appear to be a fault in lio_listio tests 9, 10, 17 and 27, and in aio_fsync tests 1, 4 and 9 for which a test suite deficiency could be granted. However, the results for lio_listio test 44 do not fit the same pattern and are not explained adequately by the submitter's rationale. The results for this test do not look like a timing problem as for the other tests. Since none of the async I/O requests (except the cancelled one) have completed after 80 seconds, a more likely explanation might be that there is an intermittent fault on the implementation whereby cancelling one of the requests causes all of the others to get "stuck". It is recommended that this request is refused. We suggest that the request should be resubmitted either with lio_listio test 44 omitted or with further information about the cause of the failure. Review Type SA Review Start Date null Completed null Status Complete Review Resolution Rejected (REJ) Review Conclusion This request is refused. Please see rationale and submit another request. 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