(gdb) thread apply all bt

Thread 36 (Thread 0x7f267b7fe700 (LWP 9532)):
#0  0x00007f269330aef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x00000000004cedf8 in __wt_yield () at ../src/os_posix/os_yield.c:25
#2  0x000000000050c211 in __wt_readlock () at ../src/support/mtx_rw.c:185
#3  0x0000000000461be5 in __wt_row_leaf_key_work () at ../src/btree/row_key.c:182
#4  0x000000000055a79c in __cursor_row_slot_key_return (kpack=0x7f267b7fdc00, rip=0x7f2615497250, cbt=0x7f26149acbd0) at ../src/include/cursor_inline.h:519
#5  __cursor_row_next (prefix=0x0, skippedp=<synthetic pointer>, restart=<optimized out>, newpage=false, cbt=0x7f26149acbd0) at ../src/btree/bt_curnext.c:433
#6  __wt_btcur_next_prefix () at ../src/btree/bt_curnext.c:750
#7  0x000000000055b1eb in __wt_btcur_next (cbt=cbt@entry=0x7f26149acbd0, truncating=truncating@entry=true) at ../src/btree/bt_curnext.c:847
#8  0x000000000056fe8d in __cursor_truncate (rmfunc=<optimized out>, stop=0x7f261443f050, start=0x7f26149acbd0) at ../src/btree/bt_cursor.c:1686
#9  __wt_btcur_range_truncate () at ../src/btree/bt_cursor.c:1805
#10 0x000000000064a7dd in __wt_schema_range_truncate () at ../src/schema/schema_truncate.c:171
#11 0x0000000000500246 in __wt_session_range_truncate () at ../src/session/session_api.c:1344
#12 0x000000000050066a in __session_truncate () at ../src/session/session_api.c:1412
#13 0x0000000000443468 in row_truncate (cursor=0x7f26149acbd0, tinfo=0x6f43eb0) at ../../../test/format/ops.c:1544
#14 ops (arg=0x6f43eb0) at ../../../test/format/ops.c:985
#15 0x00007f2693c406db in start_thread (arg=0x7f267b7fe700) at pthread_create.c:463
#16 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 35 (Thread 0x7f265b7fe700 (LWP 9539)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f265b7fdb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f265b7fdc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f265b7fdc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212fdb0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212fdb0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212fdb0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x331d4e0) at ../../../test/format/ops.c:545
#11 ops (arg=0x331d4e0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f265b7fe700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 34 (Thread 0x7f267affd700 (LWP 9533)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f267affcb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f267affcc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f267affcc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212beb0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212beb0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212beb0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x331ab60) at ../../../test/format/ops.c:545
---Type <return> to continue, or q <return> to quit---
#11 ops (arg=0x331ab60) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f267affd700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 33 (Thread 0x7f2652ffd700 (LWP 9547)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2652ffcb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2652ffcc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2652ffcc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x2130d70) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x2130d70)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x2130d70) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x3d7d410) at ../../../test/format/ops.c:545
#11 ops (arg=0x3d7d410) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2652ffd700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 32 (Thread 0x7f2643fff700 (LWP 9548)):
#0  0x00007f269331de1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, 
    timeout=timeout@entry=0x7f2643ffedb0) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000004cea41 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x000000000043d697 in hs_cursor (arg=<optimized out>) at ../../../test/format/hs.c:119
#3  0x00007f2693c406db in start_thread (arg=0x7f2643fff700) at pthread_create.c:463
#4  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 31 (Thread 0x7f2658ff9700 (LWP 9544)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2658ff8b80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2658ff8c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2658ff8c40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x21301a0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x21301a0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x21301a0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x6f1d4a0) at ../../../test/format/ops.c:545
#11 ops (arg=0x6f1d4a0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2658ff9700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 30 (Thread 0x7f26597fa700 (LWP 9543)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26597f9b80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26597f9c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
---Type <return> to continue, or q <return> to quit---
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26597f9c40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212de30) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212de30)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212de30) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x3d7c9b0) at ../../../test/format/ops.c:545
#11 ops (arg=0x3d7c9b0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f26597fa700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 29 (Thread 0x7f265a7fc700 (LWP 9541)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f265a7fbb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f265a7fbc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f265a7fbc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212d650) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212d650)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212d650) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x3d7b4f0) at ../../../test/format/ops.c:545
#11 ops (arg=0x3d7b4f0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f265a7fc700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 28 (Thread 0x7f265bfff700 (LWP 9538)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f265bffeb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f265bffec40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f265bffec40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212f9c0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212f9c0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212f9c0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x331ca80) at ../../../test/format/ops.c:545
#11 ops (arg=0x331ca80) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f265bfff700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 27 (Thread 0x7f2678ff9700 (LWP 9537)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2678ff8b80, expected=0, futex_word=0x2100c5c)
---Type <return> to continue, or q <return> to quit---
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2678ff8c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2678ff8c40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212f5d0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212f5d0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212f5d0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x331c020) at ../../../test/format/ops.c:545
#11 ops (arg=0x331c020) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2678ff9700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 26 (Thread 0x7f2679ffb700 (LWP 9535)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2679ffab80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2679ffac40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2679ffac40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212a320) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212a320)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212a320) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x808a640) at ../../../test/format/ops.c:545
#11 ops (arg=0x808a640) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2679ffb700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 25 (Thread 0x7f2680ff9700 (LWP 9530)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2680ff8b80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2680ff8c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2680ff8c40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x2129b40) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x2129b40)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x2129b40) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x6f43450) at ../../../test/format/ops.c:545
#11 ops (arg=0x6f43450) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2680ff9700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

---Type <return> to continue, or q <return> to quit---
Thread 24 (Thread 0x7f26837fe700 (LWP 9525)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26837fda40, expected=0, futex_word=0x2100c58)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26837fdb00, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26837fdb00) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212ce70) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x00000000005221c6 in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212ce70)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212ce70) at ../src/include/cache_inline.h:472
#8  __wt_txn_commit () at ../src/txn/txn.c:1829
#9  0x00000000004fc317 in __session_commit_transaction () at ../src/session/session_api.c:1590
#10 0x000000000043f58f in commit_transaction (tinfo=tinfo@entry=0x2b74650, prepared=prepared@entry=true) at ../../../test/format/ops.c:519
#11 0x0000000000440f14 in ops (arg=0x2b74650) at ../../../test/format/ops.c:1084
#12 0x00007f2693c406db in start_thread (arg=0x7f26837fe700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 23 (Thread 0x7f2681ffb700 (LWP 9528)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2681ffab80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2681ffac40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2681ffac40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212aef0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212aef0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212aef0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x6f41f90) at ../../../test/format/ops.c:545
#11 ops (arg=0x6f41f90) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2681ffb700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 22 (Thread 0x7f26827fc700 (LWP 9527)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26827fbb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26827fbc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26827fbc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212ea00) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212ea00)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212ea00) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x2b75b10) at ../../../test/format/ops.c:545
#11 ops (arg=0x2b75b10) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f26827fc700) at pthread_create.c:463
---Type <return> to continue, or q <return> to quit---
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 21 (Thread 0x7f26817fa700 (LWP 9529)):
#0  0x00007f269330aef7 in sched_yield () at ../sysdeps/unix/syscall-template.S:78
#1  0x000000000051ec93 in __wt_txn_update_oldest (session=session@entry=0x212a710, flags=flags@entry=1) at ../src/txn/txn.c:542
#2  0x00000000004a9edb in __evict_review (inmem_splitp=<synthetic pointer>, evict_flags=0, ref=0x7f26684b37d0, session=0x212a710) at ../src/evict/evict_page.c:551
#3  __wt_evict () at ../src/evict/evict_page.c:159
#4  0x00000000004a161e in __evict_page () at ../src/evict/evict_lru.c:2301
#5  0x00000000004a2b7f in __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2407
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212a710)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212a710) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x6f429f0) at ../../../test/format/ops.c:545
#11 ops (arg=0x6f429f0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f26817fa700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 20 (Thread 0x7f2682ffd700 (LWP 9526)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2682ffcb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2682ffcc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2682ffcc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212e610) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212e610)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212e610) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x2b750b0) at ../../../test/format/ops.c:545
#11 ops (arg=0x2b750b0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2682ffd700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 19 (Thread 0x7f26517fa700 (LWP 9520)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26517f9b80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26517f9c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26517f9c40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x2131160) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x2131160)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x2131160) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x6123e40) at ../../../test/format/ops.c:545
#11 ops (arg=0x6123e40) at ../../../test/format/ops.c:1089
---Type <return> to continue, or q <return> to quit---
#12 0x00007f2693c406db in start_thread (arg=0x7f26517fa700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 18 (Thread 0x7f26527fc700 (LWP 9523)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26527fbb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26527fbc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26527fbc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212d260) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212d260)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212d260) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x6125300) at ../../../test/format/ops.c:545
#11 ops (arg=0x6125300) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f26527fc700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 17 (Thread 0x7f2642ffd700 (LWP 9550)):
#0  0x00007f269331de1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, 
    timeout=timeout@entry=0x7f2642ffce50) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000004cea41 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000000000439ee0 in checkpoint (arg=<optimized out>) at ../../../test/format/checkpoint.c:78
#3  0x00007f2693c406db in start_thread (arg=0x7f2642ffd700) at pthread_create.c:463
#4  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f2659ffb700 (LWP 9542)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2659ffab80, expected=0, futex_word=0x2100c58)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2659ffac40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2659ffac40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212da40) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212da40)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212da40) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x3d7bf50) at ../../../test/format/ops.c:545
#11 ops (arg=0x3d7bf50) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2659ffb700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f26926c4700 (LWP 8541)):
#0  0x00007f2693c47804 in futex_wait (private=<optimized out>, expected=5, futex_word=0x2100c40) at ../sysdeps/unix/sysv/linux/futex-internal.h:61
#1  futex_wait_simple (private=<optimized out>, expected=5, futex_word=0x2100c40) at ../sysdeps/nptl/futex-internal.h:135
#2  __condvar_quiesce_and_switch_g1 (private=<optimized out>, g1index=<synthetic pointer>, wseq=<optimized out>, cond=0x2100c30) at pthread_cond_common.c:416
#3  __pthread_cond_broadcast (cond=cond@entry=0x2100c30) at pthread_cond_broadcast.c:73
---Type <return> to continue, or q <return> to quit---
#4  0x00000000004ce879 in __wt_cond_signal () at ../src/os_posix/os_mtx_cond.c:172
#5  0x00000000004a8860 in __evict_lru_walk (session=0x2128b80) at ../src/evict/evict_lru.c:1296
#6  __evict_pass (session=<optimized out>) at ../src/evict/evict_lru.c:718
#7  __evict_server (did_work=<synthetic pointer>, session=<optimized out>) at ../src/evict/evict_lru.c:388
#8  __wt_evict_thread_run () at ../src/evict/evict_lru.c:297
#9  0x0000000000518661 in __thread_run () at ../src/support/thread_group.c:31
#10 0x00007f2693c406db in start_thread (arg=0x7f26926c4700) at pthread_create.c:463
#11 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f267bfff700 (LWP 9531)):
#0  __lll_unlock_wake () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:371
#1  0x00007f2693c44852 in __pthread_mutex_unlock_usercnt (decr=1, mutex=0x2100c08, mutex@entry=0x0) at pthread_mutex_unlock.c:56
#2  __GI___pthread_mutex_unlock (mutex=mutex@entry=0x2100c08) at pthread_mutex_unlock.c:356
#3  0x00000000004ce4de in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:137
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212b6d0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212b6d0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212b6d0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x86b1f60) at ../../../test/format/ops.c:545
#11 ops (arg=0x86b1f60) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f267bfff700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f265affd700 (LWP 9540)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f265affcb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f265affcc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f265affcc40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212ca80) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212ca80)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212ca80) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x331df40) at ../../../test/format/ops.c:545
#11 ops (arg=0x331df40) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f265affd700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f26916c2700 (LWP 8540)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26916c1c50, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26916c1d10, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26916c1d10) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a22aa in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x2128790) at ../src/include/misc_inline.h:19
#5  __evict_lru_pages (session=session@entry=0x2128790, is_server=is_server@entry=false) at ../src/evict/evict_lru.c:1137
---Type <return> to continue, or q <return> to quit---
#6  0x00000000004a6a59 in __wt_evict_thread_run () at ../src/evict/evict_lru.c:320
#7  0x0000000000518661 in __thread_run () at ../src/support/thread_group.c:31
#8  0x00007f2693c406db in start_thread (arg=0x7f26916c2700) at pthread_create.c:463
#9  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f26537fe700 (LWP 9546)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f2693c44fb3 in __pthread_mutex_cond_lock (mutex=mutex@entry=0x2100c08) at ../nptl/pthread_mutex_lock.c:80
#2  0x00007f2693c46e7d in __pthread_cond_wait_common (abstime=0x7f26537fdc40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:645
#3  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26537fdc40) at pthread_cond_wait.c:667
#4  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#5  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x2130980) at ../src/include/misc_inline.h:19
#6  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#7  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x2130980)
    at ../src/include/cache_inline.h:531
#8  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x2130980) at ../src/include/cache_inline.h:472
#9  __wt_txn_rollback () at ../src/txn/txn.c:2124
#10 0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#11 0x000000000044143a in rollback_transaction (tinfo=0x6f1e960) at ../../../test/format/ops.c:545
#12 ops (arg=0x6f1e960) at ../../../test/format/ops.c:1089
#13 0x00007f2693c406db in start_thread (arg=0x7f26537fe700) at pthread_create.c:463
#14 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f26797fa700 (LWP 9536)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f26797f9b80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f26797f9c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f26797f9c40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212f1e0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212f1e0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212f1e0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x808b0a0) at ../../../test/format/ops.c:545
#11 ops (arg=0x808b0a0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f26797fa700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f2650ff9700 (LWP 9522)):
#0  __lll_lock_wait () at ../sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:135
#1  0x00007f2693c44fb3 in __pthread_mutex_cond_lock (mutex=mutex@entry=0x2100c08) at ../nptl/pthread_mutex_lock.c:80
#2  0x00007f2693c46e7d in __pthread_cond_wait_common (abstime=0x7f2650ff8c40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:645
#3  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2650ff8c40) at pthread_cond_wait.c:667
#4  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#5  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212edf0) at ../src/include/misc_inline.h:19
#6  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#7  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212edf0)
    at ../src/include/cache_inline.h:531
#8  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212edf0) at ../src/include/cache_inline.h:472
---Type <return> to continue, or q <return> to quit---
#9  __wt_txn_rollback () at ../src/txn/txn.c:2124
#10 0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#11 0x000000000044143a in rollback_transaction (tinfo=0x61248a0) at ../../../test/format/ops.c:545
#12 ops (arg=0x61248a0) at ../../../test/format/ops.c:1089
#13 0x00007f2693c406db in start_thread (arg=0x7f2650ff9700) at pthread_create.c:463
#14 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f2691ec3700 (LWP 8537)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2691ec2d10, expected=0, futex_word=0x20c1f98)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2691ec2dd0, mutex=0x20c1f48, cond=0x20c1f70) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x20c1f70, mutex=mutex@entry=0x20c1f48, abstime=abstime@entry=0x7f2691ec2dd0) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000047cbe0 in __tiered_server (arg=0x2127fb0) at ../src/conn/conn_tiered.c:486
#5  0x00007f2693c406db in start_thread (arg=0x7f2691ec3700) at pthread_create.c:463
#6  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f2683fff700 (LWP 9524)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2683ffeb80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2683ffec40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2683ffec40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212b2e0) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212b2e0)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212b2e0) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x2b73bf0) at ../../../test/format/ops.c:545
#11 ops (arg=0x2b73bf0) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2683fff700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f2653fff700 (LWP 9545)):
#0  0x000000000063bf38 in __wt_cell_unpack_safe (end=0x0, end=0x0, unpack_value=0x7f2653ffe8e0, unpack_addr=0x0, cell=0x7f261875f2b5, dsk=0x7f2618719640, 
    session=0x2130590) at ../src/include/cell_inline.h:683
#1  __wt_cell_unpack_kv (unpack_value=0x7f2653ffe8e0, cell=0x7f261875f2b5, dsk=0x7f2618719640, session=0x2130590) at ../src/include/cell_inline.h:1089
#2  __wt_row_leaf_value_cell (vpack=0x7f2653ffe8e0, rip=0x7f261812f898, page=0x7f26181280f0, session=0x2130590) at ../src/include/btree_inline.h:1388
#3  __wt_rec_row_leaf () at ../src/reconcile/rec_row.c:804
#4  0x00000000004e45d3 in __reconcile (page_lockedp=<synthetic pointer>, flags=1120, salvage=0x0, ref=0x2096730, session=0x2130590) at ../src/reconcile/rec_write.c:194
#5  __wt_reconcile () at ../src/reconcile/rec_write.c:99
#6  0x00000000004ab4e0 in __evict_review (inmem_splitp=<synthetic pointer>, evict_flags=0, ref=0x2096730, session=0x2130590) at ../src/evict/evict_page.c:747
#7  __wt_evict () at ../src/evict/evict_page.c:159
#8  0x00000000004a161e in __evict_page () at ../src/evict/evict_lru.c:2301
#9  0x00000000004a2b7f in __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2407
#10 0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x2130590)
    at ../src/include/cache_inline.h:531
#11 __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x2130590) at ../src/include/cache_inline.h:472
#12 __wt_txn_rollback () at ../src/txn/txn.c:2124
#13 0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
---Type <return> to continue, or q <return> to quit---
#14 0x000000000044143a in rollback_transaction (tinfo=0x6f1df00) at ../../../test/format/ops.c:545
#15 ops (arg=0x6f1df00) at ../../../test/format/ops.c:1089
#16 0x00007f2693c406db in start_thread (arg=0x7f2653fff700) at pthread_create.c:463
#17 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f2651ffb700 (LWP 9521)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2651ffab80, expected=0, futex_word=0x2100c5c)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2651ffac40, mutex=0x2100c08, cond=0x2100c30) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2100c30, mutex=mutex@entry=0x2100c08, abstime=abstime@entry=0x7f2651ffac40) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000004a2c77 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x212e220) at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker () at ../src/evict/evict_lru.c:2416
#6  0x000000000051feca in __wt_cache_eviction_check (busy=false, readonly=false, didworkp=0x0, didworkp=0x0, readonly=false, busy=false, session=0x212e220)
    at ../src/include/cache_inline.h:531
#7  __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=false, session=0x212e220) at ../src/include/cache_inline.h:472
#8  __wt_txn_rollback () at ../src/txn/txn.c:2124
#9  0x00000000004fbab5 in __session_rollback_transaction () at ../src/session/session_api.c:1675
#10 0x000000000044143a in rollback_transaction (tinfo=0x86cc290) at ../../../test/format/ops.c:545
#11 ops (arg=0x86cc290) at ../../../test/format/ops.c:1089
#12 0x00007f2693c406db in start_thread (arg=0x7f2651ffb700) at pthread_create.c:463
#13 0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f26437fe700 (LWP 9549)):
#0  0x00007f269331de1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, 
    timeout=timeout@entry=0x7f26437fdeb0) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000004cea41 in __wt_sleep (seconds=seconds@entry=0, micro_seconds=<optimized out>) at ../src/os_posix/os_sleep.c:30
#2  0x00000000004483ca 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  0x00007f2693c406db in start_thread (arg=0x7f26437fe700) at pthread_create.c:463
#5  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f2694876740 (LWP 8509)):
#0  0x00007f269331de1f in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0, writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, 
    timeout=timeout@entry=0x7ffca9d23380) at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000004cea41 in __wt_sleep (seconds=seconds@entry=0, micro_seconds=micro_seconds@entry=250000) at ../src/os_posix/os_sleep.c:30
#2  0x0000000000444433 in operations (ops_seconds=ops_seconds@entry=215, lastrun=lastrun@entry=true) at ../../../test/format/ops.c:341
#3  0x0000000000436db7 in main (argc=<optimized out>, argv=<optimized out>) at ../../../test/format/t.c:295

Thread 2 (Thread 0x7f2690ec1700 (LWP 8542)):
#0  0x00007f2693c46fb9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f2690ec0d40, expected=0, futex_word=0x2097ac8)
    at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f2690ec0e00, mutex=0x2097a78, cond=0x2097aa0) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x2097aa0, mutex=mutex@entry=0x2097a78, abstime=abstime@entry=0x7f2690ec0e00) at pthread_cond_wait.c:667
#3  0x00000000004ce292 in __wt_cond_wait_signal () at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000047abcb in __sweep_server () at ../src/conn/conn_sweep.c:285
#5  0x00007f2693c406db in start_thread (arg=0x7f2690ec1700) at pthread_create.c:463
#6  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f267a7fc700 (LWP 9534)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007f2693247921 in __GI_abort () at abort.c:79
---Type <return> to continue, or q <return> to quit---
#2  0x000000000044b2be in testutil_die (e=-31800, fmt=fmt@entry=0x650e5b "%s/%d: %s") at ../../../test/utility/misc.c:72
#3  0x0000000000441bcd in rollback_transaction (tinfo=0x331b5c0) at ../../../test/format/ops.c:547
#4  ops (arg=0x331b5c0) at ../../../test/format/ops.c:1089
#5  0x00007f2693c406db in start_thread (arg=0x7f267a7fc700) at pthread_create.c:463
#6  0x00007f269332871f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95