Core was generated by `/test/MD150225-mariadb-11.4.6-linux-x86_64-opt/bin/mariadbd --no-defaults --max'.

Program terminated with signal SIGSEGV, Segmentation fault.

#0  purge_sys_t::iterator::free_history_rseg (this=this@entry=0x1528bfdffce0, rseg=...) at /test/11.4_opt/storage/innobase/trx/trx0purge.cc:493

[Current thread is 1 (LWP 3788608)]

(gdb) bt

#0  purge_sys_t::iterator::free_history_rseg (this=this@entry=0x1528bfdffce0, rseg=@0x559c54de6740: {space = 0x559c578cf418, latch = {pfs_psi = 0x0, lock = {writer = {lock = std::atomic<unsigned int> = { 3 }, static HOLDER = 1, static WAITER = 2}, readers = std::atomic<unsigned int> = { 2147483648 }, static WRITER = 2147483648}}, page_no = 32, history_size = 1, needs_purge = 658, ref = std::atomic<unsigned int> = { 0 }, static SKIP = 1, static REF = 2, curr_size = 2, undo_list = {count = 0, start = 0x0, end = 0x0, node = &trx_undo_t::undo_list}, undo_cached = {count = 1, start = 0x152888214248, end = 0x152888214248, node = &trx_undo_t::undo_list}, last_page_no = 4294967295, last_commit_and_offset = 43123604}) at /test/11.4_opt/storage/innobase/trx/trx0purge.cc:493

#1  0x0000559c541e21c1 in purge_sys_t::iterator::free_history (this=0x1528bfdffce0)at /test/11.4_opt/storage/innobase/trx/trx0purge.cc:554

#2  0x0000559c541d8217 in purge_truncation_callback ()at /test/11.4_opt/storage/innobase/srv/srv0srv.cc:1099

#3  0x0000559c542aa568 in tpool::task_group::execute (this=0x559c55743fa8 <purge_truncation_task_group>, t=0x559c55744040 <purge_truncation_task>)at /test/11.4_opt/tpool/task_group.cc:70

#4  0x0000559c542a82f6 in tpool::thread_pool_generic::worker_main (this=0x559c577d1d30, thread_var=0x559c577d21b0)at /test/11.4_opt/tpool/tpool_generic.cc:574

#5  0x00001528ee2eabb4 in std::execute_native_thread_routine (__p=0x1528ac000b70)at ../../../../../src/libstdc++-v3/src/c++11/thread.cc:104

#6  0x00001528ede9ca94 in start_thread (arg=<optimized out>)at ./nptl/pthread_create.c:447

#7  0x00001528edf29c3c in clone3 ()at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78