Bug 204920
| Summary: | memleak in db4 | ||
|---|---|---|---|
| Product: | [Fedora] Fedora | Reporter: | Caolan McNamara <caolanm> |
| Component: | db4 | Assignee: | Jindrich Novy <jnovy> |
| Status: | CLOSED RAWHIDE | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | rawhide | CC: | pknirsch |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2006-09-03 09:38:21 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
Are you sure that usage of DB_CXX_NO_EXCEPTIONS is intentional? db_create supports only 0 or DB_XA_CREATE flags according to documentation, luckily DB_CXX_EXCEPTIONS and DB_XA_CREATE are equivalent (==2). The memleak was caused by broken SET_TXN macro in xa_db.c and occurs only when db->open()ing with txnid == NULL. Yeah, thanks, that looks dubious alright. db4-4.3.29-7.fc5 has been pushed for fc5, which should resolve this issue. If these problems are still present in this version, then please make note of it in this bug report. |
Description of problem: memleak on db->open Version-Release number of selected component (if applicable): db4-4.3.29-6 How reproducible: Always Steps to Reproduce: #include <db.h> int main(void) { DB *dbp; if (0 == db_create(&dbp, 0, DB_CXX_NO_EXCEPTIONS)) { /* args 2 is DB_TXN *, 0 is valid from docs, but appears to cause a mem leak */ dbp->open(dbp,0,"/no-exist/but/irrelevent",0,DB_BTREE, DB_RDONLY,0644); dbp->close(dbp,0); } return 0; } gcc db4test.c -lpthread -ldb valgrind --leak-check=full ./a.out Actual results: ==2837== 132 bytes in 1 blocks are definitely lost in loss record 1 of 1 ==2837== at 0x40203C6: malloc (vg_replace_malloc.c:149) ==2837== by 0x638260E: __os_malloc (in /lib/libdb-4.3.so) ==2837== by 0x6382956: __os_calloc (in /lib/libdb-4.3.so) ==2837== by 0x6390FDB: __xa_get_txn (in /lib/libdb-4.3.so) ==2837== by 0x6391C5D: (within /lib/libdb-4.3.so) ==2837== by 0x80484A4: main (in /home/caolan/a.out) Expected results: no leak Additional info: related to 2nd arg of open