To reproduce, apply the following patch and run the sharding_csrs_continuous_config_stepdown suite in Evergreen against Enterprise RHEL 6.2. The invariant added to builder.h will trigger when encountered. diff --git a/etc/evergreen.yml b/etc/evergreen.yml index a26137de34..7a8bbbbb6b 100644 --- a/etc/evergreen.yml +++ b/etc/evergreen.yml @@ -6227,7 +6227,7 @@ tasks: - func: "do setup" - func: "run tests" vars: - resmoke_args: --suites=sharding_continuous_config_stepdown --storageEngine=wiredTiger + resmoke_args: --repeat=10 --suites=sharding_continuous_config_stepdown --storageEngine=wiredTiger jstests/sharding/txn_commit_coordination_is_robust_to_killop.js - name: sharding_csrs_continuous_config_stepdown_gen commands: @@ -6236,7 +6236,7 @@ tasks: task: sharding_csrs_continuous_config_stepdown suite: sharding_continuous_config_stepdown use_large_distro: "true" - resmoke_args: --storageEngine=wiredTiger + resmoke_args: --storageEngine=wiredTiger --repeat=10 jstests/sharding/txn_commit_coordination_is_robust_to_killop.js fallback_num_sub_suites: 22 - <<: *task_template diff --git a/src/mongo/bson/util/builder.h b/src/mongo/bson/util/builder.h index b316fee068..c2b25de3c4 100644 --- a/src/mongo/bson/util/builder.h +++ b/src/mongo/bson/util/builder.h @@ -346,6 +346,7 @@ private: if (minSize > BufferMaxSize) { std::stringstream ss; ss << "BufBuilder attempted to grow() to " << minSize << " bytes, past the 64MB limit."; + invariant(0); msgasserted(13548, ss.str().c_str()); }