Crash at the end of full backup

[Arnaud Adant]

At the end of the full backup :

I hit this crash :

innobackupex --defaults-file=/etc/my.cnf --user=root --password= --backup --parallel=16 /var/lib/mysql/backup

xtrabackup: Transaction log of lsn (11411323700536) to (11418570826827) was copied.
15:56:22 UTC - xtrabackup got signal 11 ;
This could be because you hit a bug or data is corrupted.
This error can also be caused by malfunctioning hardware.
Attempting to collect some information that could help diagnose the problem.
As this is a crash and something is definitely wrong, the information
collection process might fail.

Thread pointer: 0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong...
stack_bottom = 0 thread_stack 0x10000
innobackupex(my_print_stacktrace+0x2c)[0xd4f72c]
innobackupex(handle_fatal_signal+0x262)[0xc7c812]
/lib64/libpthread.so.0(+0xf100)[0x7ffff7bce100]
innobackupex(_Z16os_event_destroyRP8os_event+0xa)[0x7a021a]
innobackupex(_Z11os_aio_freev+0x34)[0x941864]
innobackupex(_Z19xb_data_files_closev+0x1f4)[0x73b234]
innobackupex(_Z22xtrabackup_backup_funcv+0x179f)[0x73ce1f]
innobackupex(main+0x1446)[0x71c596]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7ffff5f11b15]
innobackupex[0x733a15]

Please report a bug at https://bugs.launchpad.net/percona-xtrabackup

innobackupex --version
innobackupex version 2.4.4 Linux (x86_64) (revision id: df58cf2)

[Arnaud Adant (aadant)]

The database server is MariaDB 10.1.16

[Sergei Glushchenko (sergei.glushchenko)]

--parallel=16 caught my eye. You probably have a very fast IO. I don't see anything special in the command you are using. If you could share the full backup output and your MySQL settings it would maybe help to reproduce.

[Shahriyar Rzayev (rzayev-sehriyar)]

Percona now uses JIRA for bug reports so this bug report is migrated to: https://jira.percona.com/browse/PXB-1406