Current issues:

• oplog_rollover_test: server crashes due to insert of document exceeding capped max size; server code says the client should retry the insert, but the client is the internal replication sync workers
• write_concern (import and restore): appears that the _mongos variant of these tests are overwriting the export/dump output on the FS mid-execution
• dump_server_ko_test: server is brought down before actual dump begins, causing mongodump to output a different error message
• mongofiles_search: test fails due to missing file shortly before it appears in the output
• parse_grace: db.foo.drop() followed by assert.eq(db.foo.count()) fails on PPC and must be retried (potential server bug)

Relliant on sleeps:

• bson/all_types tests
• force_table_scan_tests
• oplog_flag_tests
• import/options
• type_case
• stat_rowcount

Vulnerable to SERVER-25076:

• bad_files
• bsondump_options
• dump/version_test
• export/stdout
• mongofiles_get
• mongofiles_list
• All mongooplog tests
• stat_header
• stat_mixed_storage_engine
• stat_rowcount
• mongotop_json

Miscellaneous:

• read_preference_and_tags: re-prints shell output unnecessarily
• bson/output_file: uses sleeps after completed FS writes