[ERROR] [FATAL] InnoDB: innodb_fatal_semaphore_wait_threshold was exceeded for dict_sys.latch leading to sig6

2025-06-14  8:23:24 0 [ERROR] [FATAL] InnoDB: innodb_fatal_semaphore_wait_threshold was exceeded for dict_sys.latch. Please refer to https://mariadb.com/kb/en/how-to-produce-a-full-stack-trace-for-mysqld/

250614  8:23:24 [ERROR] mysqld 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

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: 10.11.10-MariaDB-log source revision: 3d0fb150289716ca75cd64d62823cf715ee47646

key_buffer_size=8388608

read_buffer_size=2097152

max_used_connections=1699

max_threads=4002

thread_count=617

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 16507410 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 0x49000

Can't start addr2line

/engn001/mysql/bin/mariadbd(my_print_stacktrace+0x2e)[0x55b10ebe01be]

/engn001/mysql/bin/mariadbd(handle_fatal_signal+0x307)[0x55b10e61dbc7]

/lib64/libpthread.so.0(+0xf630)[0x7ff351057630]

/lib64/libc.so.6(gsignal+0x37)[0x7ff35028d377]

/lib64/libc.so.6(abort+0x148)[0x7ff35028ea68]

2025-06-14  8:23:25 0 [Note] /engn001/mysql/bin/mariadbd (initiated by: unknown): Normal shutdown

/engn001/mysql/bin/mariadbd(+0xf0d150)[0x55b10ea6d150]

2025-06-14  8:23:25 0 [Note] Event Scheduler: Killing the scheduler thread, thread id 3

2025-06-14  8:23:25 0 [Note] Event Scheduler: Waiting for the scheduler thread to reply

2025-06-14  8:23:25 0 [Note] Event Scheduler: Stopped

/engn001/mysql/bin/mariadbd(+0xec083b)[0x55b10ea2083b]

/engn001/mysql/bin/mariadbd(_ZN5tpool19thread_pool_generic13timer_generic7executeEPv+0x40)[0x55b10eb6bc20]

/engn001/mysql/bin/mariadbd(_ZN5tpool4task7executeEv+0x2b)[0x55b10eb6cc1b]

/engn001/mysql/bin/mariadbd(_ZN5tpool19thread_pool_generic11worker_mainEPNS_11worker_dataE+0x69)[0x55b10eb69f99]

/lib64/libstdc++.so.6(+0xb5070)[0x7ff350bf2070]

/lib64/libpthread.so.0(+0x7ea5)[0x7ff35104fea5]

/lib64/libc.so.6(clone+0x6d)[0x7ff3503558cd]

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

information that should help you find out what is causing the crash.

Writing a core file...

Working directory at /data001/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        unlimited            unlimited            bytes     

Max resident set          unlimited            unlimited            bytes     

Max processes             65535                65535                processes 

Max open files            65535                65535                files     

Max locked memory         65536                65536                bytes     

Max address space         unlimited            unlimited            bytes     

Max file locks            unlimited            unlimited            locks     

Max pending signals       514890               514890               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: core

Kernel version: Linux version 3.10.0-1062.el7.x86_64 (mockbuild@x86-040.build.eng.bos.redhat.com) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-39) (GCC) ) #1 SMP Thu Jul 18 20:25:13 UTC 2019