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Type:
Bug
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Resolution: Gone away
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
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Labels:
I was running some testing using a new test program in WT-9323, and encountered a use-of-uninitialized-value error from memory sanitizer.
I've run the particular test case a lot and only seen this failure once.
The full error message is:
[2022/08/04 05:47:33.765] Uninitialized bytes in __interceptor_strlen at offset 0 inside [0x7ff8a7a56ff0, 1) [2022/08/04 05:47:33.941] ==26473==WARNING: MemorySanitizer: use-of-uninitialized-value [2022/08/04 05:47:41.151] #0 0x7ff8b61ef760 in __wt_config_init /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../src/config/config.c:47:31 [2022/08/04 05:47:41.152] #1 0x7ff8b61f406b in config_check /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../src/config/config_check.c:88:9 [2022/08/04 05:47:41.152] #2 0x7ff8b61f3eb3 in __wt_config_check /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../src/config/config_check.c:27:9 [2022/08/04 05:47:41.154] #3 0x7ff8b64b40e5 in __session_commit_transaction /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../src/session/session_api.c:1676:5 [2022/08/04 05:47:41.160] #4 0x49cbc9 in get_table_to_drop /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../test/csuite/checkpoint_snapshot_race/main.c:568:5 [2022/08/04 05:47:41.160] #5 0x49a348 in thread_drop_tables /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../test/csuite/checkpoint_snapshot_race/main.c:605:13 [2022/08/04 05:47:41.349] #6 0x7ff8b602e608 in start_thread /build/glibc-SzIz7B/glibc-2.31/nptl/pthread_create.c:477:8 [2022/08/04 05:47:41.987] #7 0x7ff8b5dd7132 in clone /build/glibc-SzIz7B/glibc-2.31/misc/../sysdeps/unix/sysv/linux/x86_64/clone.S:95 [2022/08/04 05:47:41.987] SUMMARY: MemorySanitizer: use-of-uninitialized-value /data/mci/66c6d6ed4fa967f7ac7732abf766eef3/wiredtiger/cmake_build/../src/config/config.c:47:31 in __wt_config_init
This is possibly related to WT-8195, but that is in dl_open, and this is in configuration checking, so I've opened it as a different issue.