[Draft] translog_variable_length_header: Assertion `body_len >= length' failed upon mariabackup prepare

recovered pages: 0%mariabackup: /data/bld/bb-MDEV-24-monty-baseline-debug/storage/maria/ma_loghandler.c:7149: translog_variable_length_header: Assertion `body_len >= length' failed.

250526 16:52:48 [ERROR] /data/bld/bb-MDEV-24-monty-baseline-debug/bin/mariabackup got signal 6 ;

Sorry, we probably made a mistake, and this is a bug.

Your assistance in bug reporting will enable us to fix this for the next release.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs about how to report

a bug on https://jira.mariadb.org/.

Please include the information from the server start above, to the end of the

information below.

Server version: 11.4.6-MariaDB-debug source revision: 1c09b5eadb40a2d0bc95c4c658455179549f950f

The information page at https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mariadbd/

contains instructions to obtain a better version of the backtrace below.

Following these instructions will help MariaDB developers provide a fix quicker.

Attempting backtrace. Include this in the bug report.

(note: Retrieving this information may fail)

Thread pointer: 0x0

stack_bottom = 0x0 thread_stack 0x49000

mysys/stacktrace.c:215(my_print_stacktrace)[0x5629b86bf904]

sql/signal_handler.cc:230(handle_fatal_signal)[0x5629b7d807c5]

libc_sigaction.c:0(__restore_rt)[0x7f5e6be5b050]

nptl/pthread_kill.c:44(__pthread_kill_implementation)[0x7f5e6bea9ebc]

posix/raise.c:27(__GI_raise)[0x7f5e6be5afb2]

stdlib/abort.c:81(__GI_abort)[0x7f5e6be45472]

intl/loadmsgcat.c:1177(_nl_load_domain)[0x7f5e6be45395]

/lib/x86_64-linux-gnu/libc.so.6(+0x34eb2)[0x7f5e6be53eb2]

maria/ma_loghandler.c:7150(translog_variable_length_header)[0x5629b7f96623]

maria/ma_loghandler.c:7203(translog_read_record_header_from_buffer)[0x5629b7f969dc]

maria/ma_loghandler.c:7303(translog_read_record_header_scan)[0x5629b7f96f17]

maria/ma_loghandler.c:7375(translog_read_next_record_header)[0x5629b7f972c1]

maria/ma_recovery.c:2804(run_redo_phase)[0x5629b7fb6dfd]

maria/ma_recovery.c:353(maria_apply_log)[0x5629b7fb0dc9]

maria/ma_recovery.c:240(maria_recovery_from_log)[0x5629b7fb0968]

mariabackup/aria_backup_client.cc:1003(aria::prepare(char const*))[0x5629b7708db7]

mariabackup/xtrabackup.cc:7011(xtrabackup_prepare_func(char**))[0x5629b76ad4ac]

mariabackup/xtrabackup.cc:7837(main_low(char**))[0x5629b76afcd2]

mariabackup/xtrabackup.cc:7631(main)[0x5629b76af40b]

x86/libc-start.c:74(__libc_start_call_main)[0x7f5e6be4624a]

csu/libc-start.c:128(call_init)[0x7f5e6be46305]

/data/bld/bb-MDEV-24-monty-baseline-debug/bin/mariabackup(_start+0x21)[0x5629b7698941]

Writing a core file...

Working directory at /dev/shm/var-rqg1c/trial.1/s1/backup_0

Resource Limits (excludes unlimited resources):

Limit                     Soft Limit           Hard Limit           Units     

Max stack size            8388608              unlimited            bytes     

Max core file size        0                    unlimited            bytes     

Max processes             514196               514196               processes 

Max open files            1024                 1048576              files     

Max locked memory         16854077440          16854077440          bytes     

Max pending signals       514196               514196               signals   

Max msgqueue size         819200               819200               bytes     

Max nice priority         0                    0                    

Max realtime priority     0                    0                    

Core pattern: core

Kernel version: Linux version 6.1.0-27-amd64 (debian-kernel@lists.debian.org) (gcc-12 (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40) #1 SMP PREEMPT_DYNAMIC Debian 6.1.115-1 (2024-11-01)

perl ./run.pl --compatibility=110499 --mysqld=--aria_force_start_after_recovery_failures=1 --mysqld=--aria_pagecache_division_limit=1 --scenario=MariaBackupIncremental --grammar=conf/yy/all_selects.yy:0.0001 --grammar=conf/yy/trx_stress.yy --grammar=conf/yy/dbt3-dml.yy --gendata=data/dbt3/dbt3-s0.001.dump --filter=conf/ff/restrict_dynamic_vars.ff --mysqld=--aria_checkpoint_log_activity=65536 --mysqld=--aria_block_size=8192 --mysqld=--aria_sync_log_dir=NEVER --mysqld=--aria_repair_threads=1 --mysqld=--aria_group_commit=none --mysqld=--aria_pagecache_buffer_size=16M --mysqld=--aria_sort_buffer_size=134217728 --threads=3 --duration=600 --mysqld=--max-statement-time=60 --mysqld=--lock-wait-timeout=30 --mysqld=--innodb-lock-wait-timeout=15 --vcols --mysqld=--aria_log_purge_type=external --mysqld=--aria_log_file_size=1048576 --mysqld=--aria_recover=QUICK --mysqld=--aria_page_checksum=on  --queries=1000000 --reporters=Backtrace,Deadlock,MemoryUsage,FeatureUsage --mysqld=--plugin-maturity=experimental --gendata=conf/zz/temporal.zz --gendata=conf/zz/dyncol_dml.zz --gendata=conf/zz/outer_join.zz --gendata=advanced --gendata=simple --mysqld=--aria_stats_method=nulls_unequal --mysqld=--large_pages=on --mysqld=--loose-aria_pagecache_segments=1 --engine=Aria --mysqld=--default-storage-engine=Aria --mysqld=--aria_checkpoint_interval=1 --mysqld=--aria_group_commit_interval=1000 --mysqld=--aria_pagecache_age_threshold=10000 --mysqld=--aria_max_sort_file_size=900719925 --base-port=22000 --basedir=/data/bld/bb-MDEV-24-monty-baseline-debug --vardir=/dev/shm/var-rqg1c --seed=1748142402 --trials=3