[MDEV-33161] my_hash_walk_action leads to undefined behaviour - Jira

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Details

Type: Bug
Status: Confirmed (View Workflow)
Priority: Major
Resolution: Unresolved
Affects Version/s: 10.4, 10.5, 10.6, 10.7, 10.8, 10.9, 10.10, 10.11, 11.0, 11.1, 11.2, 11.3
Fix Version/s: 10.4, 10.5, 10.6, 10.11, 11.1, 11.2
Component/s: Server, Storage Engine - InnoDB
Labels:
- UBSAN

Description

When the server is built with cmake -DWITH_UBSAN=ON using clang instead of GCC, a lot of function pointer mismatch will be reported for various traversal of lock-free hash tables:

10.4 96130b1898d34222d1f0543d75dc1acb6cdb8b09

/mariadb/10.4/storage/innobase/include/trx0sys.h:534:12: runtime error: call to function trx_sys_t::copy_one_id(rw_trx_hash_element_t*, trx_sys_t::snapshot_ids_arg*) through pointer to incorrect function type 'char (*)(void *, void *)'

/mariadb/10.4/storage/innobase/include/trx0sys.h:1155: note: trx_sys_t::copy_one_id(rw_trx_hash_element_t*, trx_sys_t::snapshot_ids_arg*) defined here

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is blocked by

MDEV-26272 The macro MASTER_INFO_VAR invokes undefined behaviour

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Assignee:: Marko Mäkelä

Reporter:: Marko Mäkelä

Votes:: 0 Vote for this issue

Watchers:: 2 Start watching this issue

Dates

Created:: 2024-01-03 07:51

Updated:: 6 hours ago

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