Thread 20 (Thread 0x7fe9d77fe700 (LWP 26265)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc739e50f9 in read_op (exactp=0x0, op=254, cursor=0x7fe9b82718c0) at ../../../test/format/format.i:47
#3  nextprev (tinfo=tinfo@entry=0x55dc75483aa0, cursor=cursor@entry=0x7fe9b82718c0, next=next@entry=true) at ../../../test/format/ops.c:1268
#4  0x000055dc739e68b3 in ops (arg=0x55dc75483aa0) at ../../../test/format/ops.c:1029
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9d77fe700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7fe9eaffd700 (LWP 26273)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc73ad12f9 in __wt_readlock (session=session@entry=0x55dc74cad800, l=l@entry=0x55dc74c9de10) at ../src/support/mtx_rw.c:185
#3  0x000055dc73ac866f in __wt_session_lock_dhandle (session=session@entry=0x55dc74cad800, flags=flags@entry=0, is_deadp=is_deadp@entry=0x7fe9eaffc757) at ../src/session/session_dhandle.c:164
#4  0x000055dc73a2f832 in __curfile_reopen_int (cursor=0x7fe9d0379510) at ../src/cursor/cur_file.c:572
#5  __curfile_reopen (cursor=0x7fe9d0379510, sweep_check_only=<optimized out>) at ../src/cursor/cur_file.c:642
#6  0x000055dc73a500c9 in __wt_cursor_cache_get (session=session@entry=0x55dc74cad800, uri=uri@entry=0x55dc73c4327f "file:WiredTigerHS.wt", hash_value=12552819710270246934, to_dup=to_dup@entry=0x0, cfg=cfg@entry=0x7fe9eaffc870, 
    cursorp=cursorp@entry=0x7fe9eaffc868) at ../src/cursor/cur_std.c:847
#7  0x000055dc73ac32bf in __wt_open_cursor (session=session@entry=0x55dc74cad800, uri=<optimized out>, uri@entry=0x55dc73c4327f "file:WiredTigerHS.wt", owner=owner@entry=0x0, cfg=cfg@entry=0x7fe9eaffc870, cursorp=cursorp@entry=0x7fe9eaffc868)
    at ../src/session/session_api.c:556
#8  0x000055dc73a42f42 in __curhs_file_cursor_open (cursorp=<optimized out>, session=0x55dc74cad800) at ../src/cursor/cur_hs.c:29
#9  __wt_curhs_open (session=session@entry=0x55dc74cad800, owner=owner@entry=0x0, cursorp=cursorp@entry=0x7fe9eaffc908) at ../src/cursor/cur_hs.c:1118
#10 0x000055dc73a609c9 in __wt_hs_find_upd (session=session@entry=0x55dc74cad800, btree_id=2, key=key@entry=0x7fe9d00b2de8, value_format=0x55dc74c45850 "u", recno=recno@entry=0, upd_value=0x7fe9d00b2e88, base_value_buf=0x7fe9d00b2e88)
    at ../src/history/hs_cursor.c:97
#11 0x000055dc73b3754c in __wt_txn_read (session=session@entry=0x55dc74cad800, cbt=cbt@entry=0x7fe9d00b2b40, key=key@entry=0x7fe9d00b2de8, recno=<optimized out>, upd=<optimized out>, vpack=0x0, vpack=0x0) at ../src/include/txn_inline.h:1069
#12 0x000055dc73b393a4 in __wt_cursor_valid (cbt=cbt@entry=0x7fe9d00b2b40, key=<optimized out>, recno=<optimized out>, valid=0x7fe9eaffcc0b) at ../src/btree/bt_cursor.c:325
#13 0x000055dc73b3c78e in __wt_btcur_search_near (cbt=cbt@entry=0x7fe9d00b2b40, exactp=exactp@entry=0x7fe9eaffcd5c) at ../src/btree/bt_cursor.c:680
#14 0x000055dc73a32eb7 in __curfile_search_near (cursor=0x7fe9d00b2b40, exact=0x7fe9eaffcd5c) at ../src/cursor/cur_file.c:232
#15 0x000055dc739e5b79 in read_op (op=SEARCH_NEAR, exactp=0x7fe9eaffcd5c, cursor=0x7fe9d00b2b40) at ../../../test/format/format.i:76
#16 read_row_worker (cursor=0x7fe9d00b2b40, tinfo=0x55dc756b6c80, keyno=1692134, key=<optimized out>, value=0x55dc756b6dc8, sn=<optimized out>) at ../../../test/format/ops.c:1186
#17 0x000055dc739e7140 in read_row (cursor=0x7fe9d00b2b40, tinfo=0x55dc756b6c80) at ../../../test/format/ops.c:1246
#18 ops (arg=0x55dc756b6c80) at ../../../test/format/ops.c:828
#19 0x00007fe9f7b7c6db in start_thread (arg=0x7fe9eaffd700) at pthread_create.c:463
#20 0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7fe9f15a7700 (LWP 26269)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc73ba22da in __wt_row_search (cbt=cbt@entry=0x7fe9dc006780, srch_key=srch_key@entry=0x7fe9dc006880, insert=insert@entry=false, leaf=leaf@entry=0x0, leaf_safe=leaf_safe@entry=false, leaf_foundp=leaf_foundp@entry=0x0)
    at ../src/btree/row_srch.c:414
#3  0x000055dc73b3c4d4 in __cursor_row_search (leaf_foundp=0x0, leaf=0x0, insert=false, cbt=0x7fe9dc006780) at ../src/btree/bt_cursor.c:385
#4  __wt_btcur_search (cbt=cbt@entry=0x7fe9dc006780) at ../src/btree/bt_cursor.c:569
#5  0x000055dc73a38b42 in __curfile_search (cursor=0x7fe9dc006780) at ../src/cursor/cur_file.c:201
#6  0x000055dc739e7b77 in read_op (op=SEARCH, exactp=0x0, cursor=0x7fe9dc006780) at ../../../test/format/format.i:66
#7  row_remove (positioned=false, cursor=0x7fe9dc006780, tinfo=0x55dc765a9130) at ../../../test/format/ops.c:1780
#8  ops (arg=0x55dc765a9130) at ../../../test/format/ops.c:913
#9  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f15a7700) at pthread_create.c:463
#10 0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7fe9eb7fe700 (LWP 26272)):
#0  __wt_page_in_func (session=session@entry=0x55dc74cad000, ref=ref@entry=0x7fe9c030b710, flags=flags@entry=512, func=func@entry=0x55dc73c6c380 <__PRETTY_FUNCTION__.44687> "__wt_row_search", line=line@entry=428) at ../src/btree/bt_read.c:336
#1  0x000055dc73ba2326 in __wt_page_swap_func (func=<synthetic pointer>, line=428, line=428, func=<synthetic pointer>, flags=512, want=0x7fe9c030b710, held=0x55dc74c313f0, session=0x55dc74cad000) at ../src/include/btree_inline.h:1950
#2  __wt_row_search (cbt=cbt@entry=0x7fe9cc242c00, srch_key=srch_key@entry=0x7fe9cc242d00, insert=insert@entry=false, leaf=leaf@entry=0x0, leaf_safe=leaf_safe@entry=false, leaf_foundp=leaf_foundp@entry=0x0) at ../src/btree/row_srch.c:428
#3  0x000055dc73b3c4d4 in __cursor_row_search (leaf_foundp=0x0, leaf=0x0, insert=false, cbt=0x7fe9cc242c00) at ../src/btree/bt_cursor.c:385
#4  __wt_btcur_search (cbt=cbt@entry=0x7fe9cc242c00) at ../src/btree/bt_cursor.c:569
#5  0x000055dc73a38b42 in __curfile_search (cursor=0x7fe9cc242c00) at ../src/cursor/cur_file.c:201
#6  0x000055dc739e7b77 in read_op (op=SEARCH, exactp=0x0, cursor=0x7fe9cc242c00) at ../../../test/format/format.i:66
#7  row_remove (positioned=false, cursor=0x7fe9cc242c00, tinfo=0x55dc756b6220) at ../../../test/format/ops.c:1780
#8  ops (arg=0x55dc756b6220) at ../../../test/format/ops.c:913
#9  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9eb7fe700) at pthread_create.c:463
#10 0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7fe9ea7fc700 (LWP 26274)):
#0  0x00007fe9f789ae1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x7fe9ea7fbea0) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x000055dc73a8b2a1 in __wt_sleep (seconds=seconds@entry=0, micro_seconds=<optimized out>) at ../src/os_posix/os_sleep.c:30
#2  0x000055dc739edf52 in random_sleep (rnd=<optimized out>, max_seconds=<optimized out>) at ../../../test/format/format.i:146
#3  timestamp (arg=<optimized out>) at ../../../test/format/util.c:327
#4  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9ea7fc700) at pthread_create.c:463
#5  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7fe9f3dac700 (LWP 26238)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc73ad12f9 in __wt_readlock (session=session@entry=0x55dc74ca9800, l=l@entry=0x55dc74c9de10) at ../src/support/mtx_rw.c:185
#3  0x000055dc73ac866f in __wt_session_lock_dhandle (session=session@entry=0x55dc74ca9800, flags=flags@entry=0, is_deadp=is_deadp@entry=0x7fe9f3daaf97) at ../src/session/session_dhandle.c:164
#4  0x000055dc73a2f832 in __curfile_reopen_int (cursor=0x7fe9ac000b50) at ../src/cursor/cur_file.c:572
#5  __curfile_reopen (cursor=0x7fe9ac000b50, sweep_check_only=<optimized out>) at ../src/cursor/cur_file.c:642
#6  0x000055dc73a500c9 in __wt_cursor_cache_get (session=session@entry=0x55dc74ca9800, uri=uri@entry=0x55dc73c4327f "file:WiredTigerHS.wt", hash_value=12552819710270246934, to_dup=to_dup@entry=0x0, cfg=cfg@entry=0x7fe9f3dab0b0, 
    cursorp=cursorp@entry=0x7fe9f3dab0a8) at ../src/cursor/cur_std.c:847
#7  0x000055dc73ac32bf in __wt_open_cursor (session=session@entry=0x55dc74ca9800, uri=<optimized out>, uri@entry=0x55dc73c4327f "file:WiredTigerHS.wt", owner=owner@entry=0x0, cfg=cfg@entry=0x7fe9f3dab0b0, cursorp=cursorp@entry=0x7fe9f3dab0a8)
    at ../src/session/session_api.c:556
#8  0x000055dc73a42f42 in __curhs_file_cursor_open (cursorp=<optimized out>, session=0x55dc74ca9800) at ../src/cursor/cur_hs.c:29
#9  __wt_curhs_open (session=session@entry=0x55dc74ca9800, owner=owner@entry=0x0, cursorp=cursorp@entry=0x7fe9f3dab1a8) at ../src/cursor/cur_hs.c:1118
#10 0x000055dc73be2fe1 in __wt_hs_insert_updates (session=session@entry=0x55dc74ca9800, page=0x7fe9b01a4440, multi=multi@entry=0x7fe9ac2a5a00, cache_write_hs=cache_write_hs@entry=0x7fe9ac241900, checkpoint_running=false) at ../src/history/hs_rec.c:324
#11 0x000055dc73aa207f in __rec_hs_wrapup (r=0x7fe9ac2413f0, session=0x55dc74ca9800) at ../src/reconcile/rec_write.c:2319
#12 __rec_write_wrapup (session=session@entry=0x55dc74ca9800, r=r@entry=0x7fe9ac2413f0, page=page@entry=0x7fe9b01a4440) at ../src/reconcile/rec_write.c:2145
#13 0x000055dc73aa406c in __reconcile (page_lockedp=<synthetic pointer>, flags=352, salvage=0x0, ref=0x55dc754acb00, session=0x55dc74ca9800) at ../src/reconcile/rec_write.c:219
#14 __wt_reconcile (session=session@entry=0x55dc74ca9800, ref=ref@entry=0x55dc754acb00, salvage=salvage@entry=0x0, flags=flags@entry=352) at ../src/reconcile/rec_write.c:99
#15 0x000055dc73a5e6a6 in __evict_review (inmem_splitp=<synthetic pointer>, evict_flags=0, ref=0x55dc754acb00, session=0x55dc74ca9800) at ../src/evict/evict_page.c:744
#16 __wt_evict (session=session@entry=0x55dc74ca9800, ref=ref@entry=0x55dc754acb00, previous_state=previous_state@entry=3 '\003', flags=flags@entry=0) at ../src/evict/evict_page.c:159
#17 0x000055dc73a532f7 in __evict_page (session=session@entry=0x55dc74ca9800, is_server=is_server@entry=false) at ../src/evict/evict_lru.c:2301
#18 0x000055dc73a53cd7 in __evict_lru_pages (session=session@entry=0x55dc74ca9800, is_server=is_server@entry=false) at ../src/evict/evict_lru.c:1129
#19 0x000055dc73a5a298 in __wt_evict_thread_run (session=0x55dc74ca9800, thread=0x55dc74ca75a0) at ../src/evict/evict_lru.c:320
#20 0x000055dc73aded81 in __thread_run (arg=0x55dc74ca75a0) at ../src/support/thread_group.c:31
#21 0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f3dac700) at pthread_create.c:463
#22 0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7fe9f5b79700 (LWP 26240)):
#0  0x00007fe9f7b82fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe9f5b78c80, expected=0, futex_word=0x55dc74c86c5c) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe9f5b78d40, mutex=0x55dc74c86c08, cond=0x55dc74c86c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x55dc74c86c30, mutex=mutex@entry=0x55dc74c86c08, abstime=abstime@entry=0x7fe9f5b78d40) at pthread_cond_wait.c:667
#3  0x000055dc73a8aa7b in __wt_cond_wait_signal (session=session@entry=0x55dc74caa000, cond=0x55dc74c86c00, usecs=usecs@entry=1000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7fe9f5b78e70) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000055dc73a5b687 in __wt_cond_wait (run_func=0x0, usecs=1000, cond=<optimized out>, session=0x55dc74caa000) at ../src/include/misc_inline.h:19
#5  __evict_pass (session=0x55dc74caa000) at ../src/evict/evict_lru.c:770
#6  __evict_server (did_work=<synthetic pointer>, session=0x55dc74caa000) at ../src/evict/evict_lru.c:388
#7  __wt_evict_thread_run (session=0x55dc74caa000, thread=0x55dc74c01a40) at ../src/evict/evict_lru.c:297
#8  0x000055dc73aded81 in __thread_run (arg=0x55dc74c01a40) at ../src/support/thread_group.c:31
#9  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f5b79700) at pthread_create.c:463
#10 0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7fe9f2daa700 (LWP 26241)):
#0  0x00007fe9f7b82fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe9f2da9da0, expected=0, futex_word=0x55dc74c995a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe9f2da9e60, mutex=0x55dc74c99558, cond=0x55dc74c99580) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x55dc74c99580, mutex=mutex@entry=0x55dc74c99558, abstime=abstime@entry=0x7fe9f2da9e60) at pthread_cond_wait.c:667
#3  0x000055dc73a8aa7b in __wt_cond_wait_signal (session=session@entry=0x55dc74caa400, cond=0x55dc74c99550, usecs=usecs@entry=10000000, run_func=<optimized out>, signalled=signalled@entry=0x7fe9f2da9ed7) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000055dc73adeda8 in __wt_cond_wait (run_func=<optimized out>, usecs=10000000, cond=<optimized out>, session=0x55dc74caa400) at ../src/include/misc_inline.h:19
#5  __thread_run (arg=0x55dc74c01750) at ../src/support/thread_group.c:29
#6  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f2daa700) at pthread_create.c:463
#7  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7fe9e9ffb700 (LWP 26275)):
#0  0x00007fe9f789ae1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x7fe9e9ffae40) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x000055dc73a8b2a1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x000055dc739df007 in checkpoint (arg=<optimized out>) at ../../../test/format/checkpoint.c:78
#3  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9e9ffb700) at pthread_create.c:463
#4  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7fe9f4dae700 (LWP 26231)):
#0  0x00007fe9f7b82fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe9f4dadd00, expected=0, futex_word=0x55dc74c57108) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe9f4daddc0, mutex=0x55dc74c570b8, cond=0x55dc74c570e0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x55dc74c570e0, mutex=mutex@entry=0x55dc74c570b8, abstime=abstime@entry=0x7fe9f4daddc0) at pthread_cond_wait.c:667
#3  0x000055dc73a8aa7b in __wt_cond_wait_signal (session=session@entry=0x55dc74ca8c00, cond=0x55dc74c570b0, usecs=usecs@entry=60000000, run_func=run_func@entry=0x55dc73a25d10 <__tiered_server_run_chk>, signalled=0x7fe9f4dade4f)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x000055dc73a2787b in __tiered_server (arg=0x55dc74ca8c00) at ../src/conn/conn_tiered.c:486
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f4dae700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7fe9f0da6700 (LWP 26270)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc739e7b87 in read_op (op=SEARCH, exactp=0x0, cursor=0x7fe9bc418e90) at ../../../test/format/format.i:67
#3  row_remove (positioned=false, cursor=0x7fe9bc418e90, tinfo=0x55dc76180a40) at ../../../test/format/ops.c:1780
#4  ops (arg=0x55dc76180a40) at ../../../test/format/ops.c:913
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f0da6700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7fe9f25a9700 (LWP 26242)):
#0  0x00007fe9f7b82fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe9f25a8d30, expected=0, futex_word=0x55dc74c99638) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe9f25a8df0, mutex=0x55dc74c995e8, cond=0x55dc74c99610) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x55dc74c99610, mutex=mutex@entry=0x55dc74c995e8, abstime=abstime@entry=0x7fe9f25a8df0) at pthread_cond_wait.c:667
#3  0x000055dc73a8aa7b in __wt_cond_wait_signal (session=session@entry=0x55dc74caa800, cond=0x55dc74c995e0, usecs=<optimized out>, run_func=run_func@entry=0x55dc73a24e40 <__sweep_server_run_chk>, signalled=signalled@entry=0x7fe9f25a8e9f)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x000055dc73a2515b in __sweep_server (arg=0x55dc74caa800) at ../src/conn/conn_sweep.c:285
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f25a9700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7fe9ebfff700 (LWP 26271)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc739e50f9 in read_op (exactp=0x0, op=254, cursor=0x7fe9ec6282b0) at ../../../test/format/format.i:47
#3  nextprev (tinfo=tinfo@entry=0x55dc76399c70, cursor=cursor@entry=0x7fe9ec6282b0, next=next@entry=true) at ../../../test/format/ops.c:1268
#4  0x000055dc739e68b3 in ops (arg=0x55dc76399c70) at ../../../test/format/ops.c:1029
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9ebfff700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7fe9f1da8700 (LWP 26268)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc739e5b89 in read_op (op=SEARCH_NEAR, exactp=0x7fe9f1da7d5c, cursor=0x7fe9c00bde00) at ../../../test/format/format.i:77
#3  read_row_worker (cursor=0x7fe9c00bde00, tinfo=0x55dc75484750, keyno=1690778, key=<optimized out>, value=0x55dc75484898, sn=<optimized out>) at ../../../test/format/ops.c:1186
#4  0x000055dc739e7140 in read_row (cursor=0x7fe9c00bde00, tinfo=0x55dc75484750) at ../../../test/format/ops.c:1246
#5  ops (arg=0x55dc75484750) at ../../../test/format/ops.c:828
#6  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f1da8700) at pthread_create.c:463
#7  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7fe9d7fff700 (LWP 26264)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc739e50f9 in read_op (exactp=0x0, op=254, cursor=0x7fe9b436ed20) at ../../../test/format/format.i:47
#3  nextprev (tinfo=tinfo@entry=0x55dc755d5580, cursor=cursor@entry=0x7fe9b436ed20, next=next@entry=true) at ../../../test/format/ops.c:1268
#4  0x000055dc739e68b3 in ops (arg=0x55dc755d5580) at ../../../test/format/ops.c:1029
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9d7fff700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7fe9f83afb80 (LWP 26218)):
#0  0x00007fe9f789ae1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x7ffd2201acd0) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x000055dc73a8b2a1 in __wt_sleep (seconds=seconds@entry=0, micro_seconds=micro_seconds@entry=250000) at ../src/os_posix/os_sleep.c:30
#2  0x000055dc739e9958 in operations (ops_seconds=<optimized out>, lastrun=false) at ../../../test/format/ops.c:340
#3  0x000055dc739dbc65 in main (argc=<optimized out>, argv=<optimized out>) at ../../../test/format/t.c:295

Thread 4 (Thread 0x7fe9e8ff9700 (LWP 26266)):
#0  0x00007fe9f7887ef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000055dc73a8b6a8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000055dc739e7b87 in read_op (op=SEARCH, exactp=0x0, cursor=0x7fe9c40af340) at ../../../test/format/format.i:67
#3  row_remove (positioned=false, cursor=0x7fe9c40af340, tinfo=0x55dc75435600) at ../../../test/format/ops.c:1780
#4  ops (arg=0x55dc75435600) at ../../../test/format/ops.c:913
#5  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9e8ff9700) at pthread_create.c:463
#6  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7fe9f45ad700 (LWP 26237)):
#0  0x000055dc73c1f0c9 in __wt_rec_upd_select (session=session@entry=0x55dc74ca9400, r=r@entry=0x7fe9e4002000, ins=ins@entry=0x0, ripcip=ripcip@entry=0x7fe9ac1e4860, vpack=vpack@entry=0x7fe9f45ac8d0, upd_select=upd_select@entry=0x7fe9f45ac7d0)
    at ../src/reconcile/rec_visibility.c:276
#1  0x000055dc73c1b0e4 in __wt_rec_row_leaf (session=session@entry=0x55dc74ca9400, r=r@entry=0x7fe9e4002000, pageref=pageref@entry=0x55dc754ac2e0, salvage=salvage@entry=0x0) at ../src/reconcile/rec_row.c:807
#2  0x000055dc73aa4023 in __reconcile (page_lockedp=<synthetic pointer>, flags=352, salvage=0x0, ref=0x55dc754ac2e0, session=0x55dc74ca9400) at ../src/reconcile/rec_write.c:191
#3  __wt_reconcile (session=session@entry=0x55dc74ca9400, ref=ref@entry=0x55dc754ac2e0, salvage=salvage@entry=0x0, flags=flags@entry=352) at ../src/reconcile/rec_write.c:99
#4  0x000055dc73a5e6a6 in __evict_review (inmem_splitp=<synthetic pointer>, evict_flags=0, ref=0x55dc754ac2e0, session=0x55dc74ca9400) at ../src/evict/evict_page.c:744
#5  __wt_evict (session=session@entry=0x55dc74ca9400, ref=ref@entry=0x55dc754ac2e0, previous_state=previous_state@entry=3 '\003', flags=flags@entry=0) at ../src/evict/evict_page.c:159
#6  0x000055dc73a532f7 in __evict_page (session=session@entry=0x55dc74ca9400, is_server=is_server@entry=false) at ../src/evict/evict_lru.c:2301
#7  0x000055dc73a53cd7 in __evict_lru_pages (session=session@entry=0x55dc74ca9400, is_server=is_server@entry=false) at ../src/evict/evict_lru.c:1129
#8  0x000055dc73a5a298 in __wt_evict_thread_run (session=0x55dc74ca9400, thread=0x55dc74c317b0) at ../src/evict/evict_lru.c:320
#9  0x000055dc73aded81 in __thread_run (arg=0x55dc74c317b0) at ../src/support/thread_group.c:31
#10 0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f45ad700) at pthread_create.c:463
#11 0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fe9f35ab700 (LWP 26239)):
#0  0x00007fe9f7b82fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7fe9f35aac20, expected=0, futex_word=0x55dc74c939a8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7fe9f35aace0, mutex=0x55dc74c93958, cond=0x55dc74c93980) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x55dc74c93980, mutex=mutex@entry=0x55dc74c93958, abstime=abstime@entry=0x7fe9f35aace0) at pthread_cond_wait.c:667
#3  0x000055dc73a8aa7b in __wt_cond_wait_signal (session=session@entry=0x55dc74ca9c00, cond=0x55dc74c93950, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7fe9f35aad50) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000055dc73a53d82 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x55dc74ca9c00) at ../src/include/misc_inline.h:19
#5  __evict_lru_pages (session=session@entry=0x55dc74ca9c00, is_server=is_server@entry=false) at ../src/evict/evict_lru.c:1137
#6  0x000055dc73a5a298 in __wt_evict_thread_run (session=0x55dc74ca9c00, thread=0x55dc74c36ed0) at ../src/evict/evict_lru.c:320
#7  0x000055dc73aded81 in __thread_run (arg=0x55dc74c36ed0) at ../src/support/thread_group.c:31
#8  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9f35ab700) at pthread_create.c:463
#9  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fe9e97fa700 (LWP 26267)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007fe9f77c4921 in __GI_abort () at abort.c:79
#2  0x000055dc739f1300 in testutil_die (e=e@entry=0, fmt=fmt@entry=0x55dc73c387e8 "%s/%d: %s: %s: timed out with prepare-conflict") at ../../../test/utility/misc.c:72
#3  0x000055dc739e5c77 in read_op (op=<optimized out>, exactp=<optimized out>, cursor=<optimized out>) at ../../../test/format/format.i:71
#4  read_row_worker (cursor=0x7fe9e00366f0, tinfo=0x55dc755b02e0, keyno=1686032, key=<optimized out>, value=0x55dc755b0428, sn=<optimized out>) at ../../../test/format/ops.c:1190
#5  0x000055dc739e7140 in read_row (cursor=0x7fe9e00366f0, tinfo=0x55dc755b02e0) at ../../../test/format/ops.c:1246
#6  ops (arg=0x55dc755b02e0) at ../../../test/format/ops.c:828
#7  0x00007fe9f7b7c6db in start_thread (arg=0x7fe9e97fa700) at pthread_create.c:463
#8  0x00007fe9f78a571f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95