ut0byte.ic:91: void* ut_align_down(const void*, ulint): Assertion `ptr' failed.

Assert hit during RQG testing

10.5.1 commit 44be8652c567ccaa0067830fa327cbffbe66b4cd 2019-12-18  compiled with debug

Version: '10.5.1-MariaDB-debug-log'  socket: '... Source distribution

mysqld: /home/mleich/Server/10.5/storage/innobase/include/ut0byte.ic:91: void* ut_align_down(const void*, ulint): Assertion `ptr' failed.

...

Query (0x7ff33c0115a0): DELETE FROM t3 WHERE col2 = @MY_INT

Status: NOT_KILLED

The attached file 'prt' is the log of that MTR test run.

The MTR test could also show some other assert

mysqld: storage/innobase/btr/btr0pcur.cc:346: ulint btr_pcur_restore_position_func(ulint, btr_pcur_t*, const char*, unsigned int, mtr_t*): Assertion `!cmp_rec_rec(cursor->old_rec, rec, offsets1, offsets2, index)' failed.

...

Query (0x7f26d80115a0): DELETE FROM t3 WHERE col2 = @MY_INT

Status: NOT_KILLED

The attached file 'prt_other' is the log that MTR test run.

10.4.9 commit 576c96a9385f20cf4b6fe685e079dcf8026c3a24 2019-10-29

10.4.12 commit 088de81d965f1b5ae2f50b1ed6e7cfccc0366098 2019-12-18

did not replay that crash.