Mariadb (galera) node crashed with an error: [ERROR] [FATAL] InnoDB: fsync() returned 5

Hello Team,

Mariadb Galera node crashed and we observed following errors in the log file.
Storage is mounted via NFS: version is nfs4.

Some variables:

2020-03-16 7:33:19 0 [Note] WSREP: Created page /exstorage/database/mysql/galera/gcache.page.000011 of size 1770627216 bytes
2020-03-16 7:33:20 0 [Note] WSREP: Deleted page /exstorage/database/mysql/galera/gcache.page.000010
2020-03-16 7:33:22 0 [ERROR] [FATAL] InnoDB: fsync() returned 5
200316 7:33:22 [ERROR] mysqld got signal 6 ;
This could be because you hit a bug. It is also possible that this binary
or one of the libraries it was linked against is corrupt, improperly built,
or misconfigured. This error can also be caused by malfunctioning hardware.

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

We will try our best to scrape up some info that will hopefully help
diagnose the problem, but since we have already crashed,
something is definitely wrong and this may fail.

Server version: 10.4.11-MariaDB-1:10.4.11+maria~xenial-log
key_buffer_size=65536
read_buffer_size=2097152
max_used_connections=67
max_threads=102
thread_count=83
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 629241 K bytes of memory
Hope that's ok; if not, decrease some variables in the equation.

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 = 0x0 thread_stack 0x30000
/usr/sbin/mysqld(my_print_stacktrace+0x2e)[0x55e8ec83e49e]
/usr/sbin/mysqld(handle_fatal_signal+0x307)[0x55e8ec2d0037]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7f3c8e297390]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x38)[0x7f3c8cfb4428]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7f3c8cfb602a]
/usr/sbin/mysqld(+0xc25041)[0x55e8ec685041]
/usr/sbin/mysqld(+0xb47888)[0x55e8ec5a7888]
/usr/sbin/mysqld(+0xcc4858)[0x55e8ec724858]
/usr/sbin/mysqld(+0xccbcb5)[0x55e8ec72bcb5]
/usr/sbin/mysqld(+0xb2747d)[0x55e8ec58747d]
/usr/sbin/mysqld(+0xb2a2d5)[0x55e8ec58a2d5]
/usr/sbin/mysqld(+0xbdad7d)[0x55e8ec63ad7d]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76ba)[0x7f3c8e28d6ba]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f3c8d08641d]
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
Writing a core file...
Working directory at /exstorage/database/mysql/data
Resource Limits:
Limit Soft Limit Hard Limit Units
Max cpu time unlimited unlimited seconds
Max file size unlimited unlimited bytes
Max data size unlimited unlimited bytes
Max stack size 8388608 unlimited bytes
Max core file size 0 unlimited bytes
Max resident set unlimited unlimited bytes
Max processes 64024 64024 processes
Max open files 16364 16364 files
Max locked memory 65536 65536 bytes
Max address space unlimited unlimited bytes
Max file locks unlimited unlimited locks
Max pending signals 64024 64024 signals
Max msgqueue size 819200 819200 bytes
Max nice priority 0 0
Max realtime priority 0 0
Max realtime timeout unlimited unlimited us
Core pattern: |/usr/share/apport/apport %p %s %c %d %P

2020-03-16 7:33:35 0 [Note] WSREP: Loading provider /usr/lib/galera/libgalera_smm.so initial position: 240beee1-412e-11ea-85b1-2b4776f5dbba:1847879
wsrep loader: [INFO] wsrep_load(): loading provider library '/usr/lib/galera/libgalera_smm.so'
wsrep loader: [INFO] wsrep_load(): Galera 26.4.3(r4535) by Codership Oy <info@codership.com> loaded successfully.
2020-03-16 7:33:35 0 [Note] WSREP: CRC-32C: using hardware acceleration.
2020-03-16 7:33:35 0 [Note] WSREP: Found saved state: 240beee1-412e-11ea-85b1-2b4776f5dbba:-1, safe_to_bootstrap: 0
2020-03-16 7:33:35 0 [Note] WSREP: GCache DEBUG: opened preamble:
Version: 2
UUID: 240beee1-412e-11ea-85b1-2b4776f5dbba
Seqno: -1 - -1
Offset: -1
Synced: 0
2020-03-16 7:33:35 0 [Note] WSREP: Recovering GCache ring buffer: version: 2, UUID: 240beee1-412e-11ea-85b1-2b4776f5dbba, offset: -1
2020-03-16 7:33:35 0 [Note] WSREP: GCache::RingBuffer initial scan... 0.0% ( 0/3221225496 bytes) complete.

Please excuse if I have missed providing any information and let me know about the same.

Thank you.

Nilesh