mariadb-10.5.9 3a8ca9096ea82ca61811450775511533d6cb1bb4 2021-02-19T10:37:51+01:00 + a code of  MDEV-25031

1. Start server and create some initial data

2. Several sessions run a concurrent  DDL/DML mix

3. During 2. is ongoing

     mariabackup --backup ... to <other_dir>

      mariabackup --prepare ... in other_dir

This "prepare" fails with

2021-03-10 13:11:24 0 [Note] InnoDB: Starting crash recovery from checkpoint LSN=162939,15421408

# 2021-03-10T13:12:35 [3326538] | 2021-03-10 13:11:30 0 [Note] InnoDB: Starting final batch to recover 497 pages from redo log.

# 2021-03-10T13:12:35 [3326538] | 2021-03-10 13:11:33 0 [ERROR] [FATAL] InnoDB: Trying to write 16384 bytes at 1032192 outside the bounds of the file: test/table100_innodb_int_autoinc.ibd

# 2021-03-10T13:12:35 [3326538] | 210310 13:11:33 [ERROR] mysqld got signal 6 ;

(rr) bt

#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:50

#1  0x000073605f7e8859 in __GI_abort () at abort.c:79

#2  0x000055db8e6edb37 in ib::fatal::~fatal (this=0x439a0eee0570, __in_chrg=<optimized out>) at /Server/10.5.9-MDEV-25031/storage/innobase/ut/ut0ut.cc:576

#3  0x000055db8e0d00ab in fil_report_invalid_page_access (name=0x60600000a3b8 "test/table100_innodb_int_autoinc.ibd", offset=1032192, len=16384, is_read=false) at /Server/10.5.9-MDEV-25031/storage/innobase/fil/fil0fil.cc:3321

#4  0x000055db8e0d0e46 in fil_space_t::io (this=0x615000003a18, type=..., offset=1032192, len=16384, buf=0x7a864000, bpage=0x79c30be8) at /Server/10.5.9-MDEV-25031/storage/innobase/fil/fil0fil.cc:3412

#5  0x000055db8e009653 in buf_flush_page (bpage=0x79c30be8, lru=false, space=0x615000003a18) at /Server/10.5.9-MDEV-25031/storage/innobase/buf/buf0flu.cc:962

#6  0x000055db8e00de54 in buf_do_flush_list_batch (max_n=200, lsn=18446744073709551615) at /Server/10.5.9-MDEV-25031/storage/innobase/buf/buf0flu.cc:1472

#7  0x000055db8e00e9b4 in buf_flush_lists (max_n=200, lsn=18446744073709551615) at /Server/10.5.9-MDEV-25031/storage/innobase/buf/buf0flu.cc:1581

#8  0x000055db8e013626 in buf_flush_page_cleaner () at /Server/10.5.9-MDEV-25031/storage/innobase/buf/buf0flu.cc:2168

#9  0x00007feed4e78609 in start_thread (arg=<optimized out>) at pthread_create.c:477

#10 0x000073605f8e5293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

(rr)

pluto:/home/mleich/RQG_O/storage/1615376730/TBR-932/dev/shm/vardir/1615376730/58/1_clone/rr