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| author | Marko Mäkelä <marko.makela@mariadb.com> | 2019-03-27 11:34:53 +0200 |
|---|---|---|
| committer | Marko Mäkelä <marko.makela@mariadb.com> | 2019-03-27 11:54:34 +0200 |
| commit | 828cc2ba7cdbe47c55fd679437e6e7f0bc714dff (patch) | |
| tree | 08440a6e0a96bbaa966c2d3af4691f6a8176eec3 /sql/sql_statistics.cc | |
| parent | 1933cf98e842f97e11f69afc631638618ec16068 (diff) | |
| download | mariadb-git-828cc2ba7cdbe47c55fd679437e6e7f0bc714dff.tar.gz | |
MDEV-18417/MDEV-18656/MDEV-18417: Work around compiler ASAN bug
In a Ubuntu Xenial build environment, the compiler identified as
g++-5.real (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
seems to be emitting incorrect code for the compilation unit
trx0rec.cc, triggering a bogus-looking AddressSanitizer report
of an invalid read of something in the function trx_undo_rec_get_pars().
This is potentially affecting any larger tests where the InnoDB
purge subsystem is being exercised.
When the optimization level of trx0rec.cc is limited to -O1, no
bogus failure is being reported. With -O2 or -O3, a lot of things
seemed to be inlined in the function, and the disassembly of the
generated code did not make sense to me.
Diffstat (limited to 'sql/sql_statistics.cc')
0 files changed, 0 insertions, 0 deletions