Thread 35 (Thread 0x7f12c67fc700 (LWP 21211)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc861850, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12c67fbb80) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc861850) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc861850, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857ff320 in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc861850) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc861850) at ../src/include/cursor.i:145
#6  __cursor_func_init (cbt=cbt@entry=0x7f12ac36eab0, reenter=true) at ../src/include/cursor.i:344
#7  0x0000560c85802408 in __wt_btcur_search (cbt=cbt@entry=0x7f12ac36eab0) at ../src/btree/bt_cursor.c:555
#8  0x0000560c8586ac33 in __curfile_search (cursor=0x7f12ac36eab0) at ../src/cursor/cur_file.c:195
#9  0x0000560c85762703 in read_op (op=<optimized out>, exactp=<optimized out>, cursor=<optimized out>) at ../../../test/format/format.i:52
#10 read_row_worker (cursor=0x7f12ac36eab0, keyno=982473, key=<optimized out>, value=0x560c890553e0, sn=<optimized out>) at ../../../test/format/ops.c:1088
#11 0x0000560c85763c48 in read_row (cursor=0x7f12ac36eab0, tinfo=0x560c89055320) at ../../../test/format/ops.c:1138
#12 ops (arg=0x560c89055320) at ../../../test/format/ops.c:710
#13 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 34 (Thread 0x7f12c4ff9700 (LWP 21214)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc862ad0, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12c4ff8c00) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc862ad0) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc862ad0, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e6c66 in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc862ad0) at ../src/include/cache.i:429
#5  __wt_txn_rollback (session=0x7f12fc862ad0, cfg=<optimized out>) at ../src/txn/txn.c:1087
#6  0x0000560c857ceee5 in __session_rollback_transaction (wt_session=0x7f12fc862ad0, config=<optimized out>) at ../src/session/session_api.c:1685
#7  0x0000560c85762b0a in rollback_transaction (tinfo=0x560c890797d0) at ../../../test/format/ops.c:447
#8  ops (arg=0x560c890797d0) at ../../../test/format/ops.c:971
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 33 (Thread 0x7f12837fe700 (LWP 21223)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc864fd0, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12837fdbc0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc864fd0) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc864fd0, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c8580131a in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc864fd0) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc864fd0) at ../src/include/cursor.i:145
#6  __cursor_func_init (reenter=true, cbt=0x7f1278167ed0) at ../src/include/cursor.i:344
#7  __btcur_update (cbt=cbt@entry=0x7f1278167ed0, value=value@entry=0x7f1278167ff8, modify_type=modify_type@entry=4) at ../src/btree/bt_cursor.c:1257
#8  0x0000560c858077a5 in __wt_btcur_update (cbt=cbt@entry=0x7f1278167ed0) at ../src/btree/bt_cursor.c:1544
#9  0x0000560c8586babe in __curfile_update (cursor=0x7f1278167ed0) at ../src/cursor/cur_file.c:356
#10 0x0000560c857639da in col_update (positioned=<optimized out>, cursor=0x7f1278167ed0, tinfo=0x560c884510c0) at ../../../test/format/ops.c:1530
#11 ops (arg=0x560c884510c0) at ../../../test/format/ops.c:897
#12 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 32 (Thread 0x7f12e6ffd700 (LWP 21203)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85e570, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12e6ffcb80) at ../src/os_posix/os_mtx_cond.c:121
--Type <RET> for more, q to quit, c to continue without paging--c
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc85e570) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc85e570, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857ff320 in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc85e570) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc85e570) at ../src/include/cursor.i:145
#6  __cursor_func_init (cbt=cbt@entry=0x7f12d0ae1370, reenter=true) at ../src/include/cursor.i:344
#7  0x0000560c85802408 in __wt_btcur_search (cbt=cbt@entry=0x7f12d0ae1370) at ../src/btree/bt_cursor.c:555
#8  0x0000560c8586ac33 in __curfile_search (cursor=0x7f12d0ae1370) at ../src/cursor/cur_file.c:195
#9  0x0000560c85762703 in read_op (op=<optimized out>, exactp=<optimized out>, cursor=<optimized out>) at ../../../test/format/format.i:52
#10 read_row_worker (cursor=0x7f12d0ae1370, keyno=546489, key=<optimized out>, value=0x560c869b9be0, sn=<optimized out>) at ../../../test/format/ops.c:1088
#11 0x0000560c85763c48 in read_row (cursor=0x7f12d0ae1370, tinfo=0x560c869b9b20) at ../../../test/format/ops.c:1138
#12 ops (arg=0x560c869b9b20) at ../../../test/format/ops.c:710
#13 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 31 (Thread 0x7f12e5ffb700 (LWP 21205)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85f350, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12e5ffab40) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc85f350) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc85f350, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e761d in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc85f350) at ../src/include/cache.i:429
#5  __wt_txn_commit (session=session@entry=0x7f12fc85f350, cfg=cfg@entry=0x7f12e5ffaca0) at ../src/txn/txn.c:889
#6  0x0000560c857c5acb in __session_commit_transaction (wt_session=0x7f12fc85f350, config=<optimized out>) at ../src/session/session_api.c:1597
#7  0x0000560c857612fe in commit_transaction (tinfo=tinfo@entry=0x560c8900c9c0) at ../../../test/format/ops.c:425
#8  0x0000560c857634f1 in ops (arg=0x560c8900c9c0) at ../../../test/format/ops.c:966
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 30 (Thread 0x7f12a37fe700 (LWP 21216)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc863d50, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12a37fdb40) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc863d50) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc863d50, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e761d in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc863d50) at ../src/include/cache.i:429
#5  __wt_txn_commit (session=session@entry=0x7f12fc863d50, cfg=cfg@entry=0x7f12a37fdca0) at ../src/txn/txn.c:889
#6  0x0000560c857c5acb in __session_commit_transaction (wt_session=0x7f12fc863d50, config=<optimized out>) at ../src/session/session_api.c:1597
#7  0x0000560c857612fe in commit_transaction (tinfo=tinfo@entry=0x560c89091af0) at ../../../test/format/ops.c:425
#8  0x0000560c857634f1 in ops (arg=0x560c89091af0) at ../../../test/format/ops.c:966
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 29 (Thread 0x7f1283fff700 (LWP 21222)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc865910, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f1283ffeb40) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc865910) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc865910, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e761d in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc865910) at ../src/include/cache.i:429
#5  __wt_txn_commit (session=session@entry=0x7f12fc865910, cfg=cfg@entry=0x7f1283ffeca0) at ../src/txn/txn.c:889
#6  0x0000560c857c5acb in __session_commit_transaction (wt_session=0x7f12fc865910, config=<optimized out>) at ../src/session/session_api.c:1597
#7  0x0000560c857612fe in commit_transaction (tinfo=tinfo@entry=0x560c86c7cff0) at ../../../test/format/ops.c:425
#8  0x0000560c857634f1 in ops (arg=0x560c86c7cff0) at ../../../test/format/ops.c:966
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 28 (Thread 0x7f12c7fff700 (LWP 21208)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc860a70, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12c7ffebb0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc860a70) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc860a70, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e761d in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc860a70) at ../src/include/cache.i:429
#5  __wt_txn_commit (session=session@entry=0x7f12fc860a70, cfg=cfg@entry=0x0) at ../src/txn/txn.c:889
#6  0x0000560c8586aa92 in __curfile_insert (cursor=0x7f12bc4be4a0) at ../src/cursor/cur_file.c:273
#7  0x0000560c85764bc0 in col_insert (cursor=0x7f12bc4be4a0, tinfo=0x560c89030e70) at ../../../test/format/ops.c:1683
#8  ops (arg=0x560c89030e70) at ../../../test/format/ops.c:756
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 27 (Thread 0x7f12f5606700 (LWP 21199)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85ea10, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12f5605bd0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc85ea10) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc85ea10, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857ff320 in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc85ea10) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc85ea10) at ../src/include/cursor.i:145
#6  __cursor_func_init (cbt=cbt@entry=0x7f12ec060c90, reenter=true) at ../src/include/cursor.i:344
#7  0x0000560c85802408 in __wt_btcur_search (cbt=cbt@entry=0x7f12ec060c90) at ../src/btree/bt_cursor.c:555
#8  0x0000560c8586ac33 in __curfile_search (cursor=0x7f12ec060c90) at ../src/cursor/cur_file.c:195
#9  0x0000560c85763e94 in read_op (op=<optimized out>, exactp=<optimized out>, cursor=<optimized out>) at ../../../test/format/format.i:52
#10 col_remove (positioned=<optimized out>, cursor=0x7f12ec060c90, tinfo=0x560c8781cd30) at ../../../test/format/ops.c:1739
#11 ops (arg=0x560c8781cd30) at ../../../test/format/ops.c:808
#12 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 26 (Thread 0x7f12827fc700 (LWP 21225)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c85768b37 in checkpoint (arg=<optimized out>) at ../../../test/format/util.c:514
#3  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 25 (Thread 0x7f12e4ff9700 (LWP 21207)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc860130, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12e4ff8b80) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc860130) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc860130, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857ff320 in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc860130) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc860130) at ../src/include/cursor.i:145
#6  __cursor_func_init (cbt=cbt@entry=0x7f12c00567a0, reenter=true) at ../src/include/cursor.i:344
#7  0x0000560c85802408 in __wt_btcur_search (cbt=cbt@entry=0x7f12c00567a0) at ../src/btree/bt_cursor.c:555
#8  0x0000560c8586ac33 in __curfile_search (cursor=0x7f12c00567a0) at ../src/cursor/cur_file.c:195
#9  0x0000560c85762703 in read_op (op=<optimized out>, exactp=<optimized out>, cursor=<optimized out>) at ../../../test/format/format.i:52
#10 read_row_worker (cursor=0x7f12c00567a0, keyno=329306, key=<optimized out>, value=0x560c89024da0, sn=<optimized out>) at ../../../test/format/ops.c:1088
#11 0x0000560c85763287 in read_row (cursor=0x7f12c00567a0, tinfo=0x560c89024ce0) at ../../../test/format/ops.c:1138
#12 ops (arg=0x560c89024ce0) at ../../../test/format/ops.c:793
#13 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#14 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 24 (Thread 0x7f12a27fc700 (LWP 21218)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc864b30, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12a27fbc00) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc864b30) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc864b30, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e6c66 in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc864b30) at ../src/include/cache.i:429
#5  __wt_txn_rollback (session=0x7f12fc864b30, cfg=<optimized out>) at ../src/txn/txn.c:1087
#6  0x0000560c857ceee5 in __session_rollback_transaction (wt_session=0x7f12fc864b30, config=<optimized out>) at ../src/session/session_api.c:1685
#7  0x0000560c85762b0a in rollback_transaction (tinfo=0x560c86ed7210) at ../../../test/format/ops.c:447
#8  ops (arg=0x560c86ed7210) at ../../../test/format/ops.c:971
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 23 (Thread 0x7f12a17fa700 (LWP 21220)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc8641f0, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12a17f9c00) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc8641f0) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc8641f0, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c858040f8 in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=<optimized out>) at ../src/include/cache.i:429
#5  __cursor_enter (session=<optimized out>) at ../src/include/cursor.i:145
#6  __cursor_func_init (reenter=true, cbt=0x7f1288052340) at ../src/include/cursor.i:344
#7  __wt_btcur_insert (cbt=cbt@entry=0x7f1288052340) at ../src/btree/bt_cursor.c:831
#8  0x0000560c8586a392 in __curfile_insert (cursor=0x7f1288052340) at ../src/cursor/cur_file.c:258
#9  0x0000560c85764bc0 in col_insert (cursor=0x7f1288052340, tinfo=0x560c8753cb70) at ../../../test/format/ops.c:1683
#10 ops (arg=0x560c8753cb70) at ../../../test/format/ops.c:756
#11 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#12 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 22 (Thread 0x7f12c5ffb700 (LWP 21212)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc861cf0, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12c5ffac00) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc861cf0) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc861cf0, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e6c66 in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc861cf0) at ../src/include/cache.i:429
#5  __wt_txn_rollback (session=0x7f12fc861cf0, cfg=<optimized out>) at ../src/txn/txn.c:1087
#6  0x0000560c857ceee5 in __session_rollback_transaction (wt_session=0x7f12fc861cf0, config=<optimized out>) at ../src/session/session_api.c:1685
#7  0x0000560c85762b0a in rollback_transaction (tinfo=0x560c890614b0) at ../../../test/format/ops.c:447
#8  ops (arg=0x560c890614b0) at ../../../test/format/ops.c:971
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 21 (Thread 0x7f1282ffd700 (LWP 21224)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8575d34f in backup (arg=<optimized out>) at ../../../test/format/backup.c:114
#3  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 20 (Thread 0x7f12c77fe700 (LWP 21209)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc860f10, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12c77fdbc0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc860f10) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc860f10, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c8580131a in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc860f10) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc860f10) at ../src/include/cursor.i:145
#6  __cursor_func_init (reenter=true, cbt=0x7f12b4089d40) at ../src/include/cursor.i:344
#7  __btcur_update (cbt=cbt@entry=0x7f12b4089d40, value=value@entry=0x7f12b4089e68, modify_type=modify_type@entry=4) at ../src/btree/bt_cursor.c:1257
#8  0x0000560c858077a5 in __wt_btcur_update (cbt=cbt@entry=0x7f12b4089d40) at ../src/btree/bt_cursor.c:1544
#9  0x0000560c8586babe in __curfile_update (cursor=0x7f12b4089d40) at ../src/cursor/cur_file.c:356
#10 0x0000560c857639da in col_update (positioned=<optimized out>, cursor=0x7f12b4089d40, tinfo=0x560c8903d000) at ../../../test/format/ops.c:1530
#11 ops (arg=0x560c8903d000) at ../../../test/format/ops.c:897
#12 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 19 (Thread 0x7f12a0ff9700 (LWP 21221)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc865470, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12a0ff8bc0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc865470) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc865470, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c8580131a in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc865470) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc865470) at ../src/include/cursor.i:145
#6  __cursor_func_init (reenter=true, cbt=0x7f127c050b20) at ../src/include/cursor.i:344
#7  __btcur_update (cbt=cbt@entry=0x7f127c050b20, value=value@entry=0x7f127c050c48, modify_type=modify_type@entry=4) at ../src/btree/bt_cursor.c:1257
#8  0x0000560c858077a5 in __wt_btcur_update (cbt=cbt@entry=0x7f127c050b20) at ../src/btree/bt_cursor.c:1544
#9  0x0000560c8586babe in __curfile_update (cursor=0x7f127c050b20) at ../src/cursor/cur_file.c:356
#10 0x0000560c857639da in col_update (positioned=<optimized out>, cursor=0x7f127c050b20, tinfo=0x560c8802eba0) at ../../../test/format/ops.c:1530
#11 ops (arg=0x560c8802eba0) at ../../../test/format/ops.c:897
#12 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 18 (Thread 0x7f12a2ffd700 (LWP 21217)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009273) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f128c0bea40, tinfo=0x560c8909dc80) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c8909dc80) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 17 (Thread 0x7f12e57fa700 (LWP 21206)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc8605d0, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12e57f9bd0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc8605d0) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc8605d0, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857ff320 in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc8605d0) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc8605d0) at ../src/include/cursor.i:145
#6  __cursor_func_init (cbt=cbt@entry=0x7f12cc25e2b0, reenter=true) at ../src/include/cursor.i:344
#7  0x0000560c85802408 in __wt_btcur_search (cbt=cbt@entry=0x7f12cc25e2b0) at ../src/btree/bt_cursor.c:555
#8  0x0000560c8586ac33 in __curfile_search (cursor=0x7f12cc25e2b0) at ../src/cursor/cur_file.c:195
#9  0x0000560c85763e94 in read_op (op=<optimized out>, exactp=<optimized out>, cursor=<optimized out>) at ../../../test/format/format.i:52
#10 col_remove (positioned=<optimized out>, cursor=0x7f12cc25e2b0, tinfo=0x560c89018b50) at ../../../test/format/ops.c:1739
#11 ops (arg=0x560c89018b50) at ../../../test/format/ops.c:808
#12 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 16 (Thread 0x7f12a1ffb700 (LWP 21219)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc864690, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12a1ffabc0) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc864690) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc864690, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c8580131a in __wt_cache_eviction_check (busy=<optimized out>, didworkp=0x0, readonly=false, session=0x7f12fc864690) at ../src/include/cache.i:429
#5  __cursor_enter (session=0x7f12fc864690) at ../src/include/cursor.i:145
#6  __cursor_func_init (reenter=true, cbt=0x7f128413df90) at ../src/include/cursor.i:344
#7  __btcur_update (cbt=cbt@entry=0x7f128413df90, value=value@entry=0x7f128413e0b8, modify_type=modify_type@entry=4) at ../src/btree/bt_cursor.c:1257
#8  0x0000560c858077a5 in __wt_btcur_update (cbt=cbt@entry=0x7f128413df90) at ../src/btree/bt_cursor.c:1544
#9  0x0000560c8586babe in __curfile_update (cursor=0x7f128413df90) at ../src/cursor/cur_file.c:356
#10 0x0000560c857639da in col_update (positioned=<optimized out>, cursor=0x7f128413df90, tinfo=0x560c870c3b80) at ../../../test/format/ops.c:1530
#11 ops (arg=0x560c870c3b80) at ../../../test/format/ops.c:897
#12 0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 15 (Thread 0x7f12e77fe700 (LWP 21202)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009274) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f12dc102850, tinfo=0x560c869ad990) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c869ad990) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 14 (Thread 0x7f12e67fc700 (LWP 21204)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009036) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f12d4d942d0, tinfo=0x560c89000830) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c89000830) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 13 (Thread 0x7f12a3fff700 (LWP 21215)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc862630, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12a3ffeb40) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc862630) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc862630, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e761d in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc862630) at ../src/include/cache.i:429
#5  __wt_txn_commit (session=session@entry=0x7f12fc862630, cfg=cfg@entry=0x7f12a3ffeca0) at ../src/txn/txn.c:889
#6  0x0000560c857c5acb in __session_commit_transaction (wt_session=0x7f12fc862630, config=<optimized out>) at ../src/session/session_api.c:1597
#7  0x0000560c857612fe in commit_transaction (tinfo=tinfo@entry=0x560c89085960) at ../../../test/format/ops.c:425
#8  0x0000560c857634f1 in ops (arg=0x560c89085960) at ../../../test/format/ops.c:966
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 12 (Thread 0x7f12e7fff700 (LWP 21201)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009272) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f12d836bd30, tinfo=0x560c86b5e390) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c86b5e390) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 11 (Thread 0x7f12c57fa700 (LWP 21213)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc862190, cond=0x560c8698c5c0, usecs=usecs@entry=10000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12c57f9c00) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8578ab1a in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x7f12fc862190) at ../src/include/misc.i:19
#3  __wt_cache_eviction_worker (session=session@entry=0x7f12fc862190, busy=<optimized out>, readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2315
#4  0x0000560c857e6c66 in __wt_cache_eviction_check (busy=<optimized out>, readonly=false, didworkp=0x0, session=0x7f12fc862190) at ../src/include/cache.i:429
#5  __wt_txn_rollback (session=0x7f12fc862190, cfg=<optimized out>) at ../src/txn/txn.c:1087
#6  0x0000560c857ceee5 in __session_rollback_transaction (wt_session=0x7f12fc862190, config=<optimized out>) at ../src/session/session_api.c:1685
#7  0x0000560c85762b0a in rollback_transaction (tinfo=0x560c8906d640) at ../../../test/format/ops.c:447
#8  ops (arg=0x560c8906d640) at ../../../test/format/ops.c:971
#9  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#10 0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 10 (Thread 0x7f12f4e05700 (LWP 21200)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009263) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f12e0062c60, tinfo=0x560c86b52200) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c86b52200) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 9 (Thread 0x7f12f6e09700 (LWP 21196)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85d2f0, cond=0x560c86996790, usecs=usecs@entry=10000000, run_func=<optimized out>, signalled=signalled@entry=0x7f12f6e08ed7) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c857e4bc8 in __wt_cond_wait (run_func=<optimized out>, usecs=10000000, cond=<optimized out>, session=0x7f12fc85d2f0) at ../src/include/misc.i:19
#3  __thread_run (arg=0x560c869917e0) at ../src/support/thread_group.c:29
#4  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 8 (Thread 0x7f12c6ffd700 (LWP 21210)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009121) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f12b812b460, tinfo=0x560c89049190) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c89049190) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 7 (Thread 0x7f12f6608700 (LWP 21197)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85d790, cond=0x560c8699bc00, usecs=usecs@entry=2000000, run_func=<optimized out>, signalled=0x7f12f6607ea7) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c8577c585 in __sweep_server (arg=0x7f12fc85d790) at ../src/conn/conn_sweep.c:292
#3  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#4  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f12f5e07700 (LWP 21198)):
#0  0x00007f12fbd6bd1f in select () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x0000560c857a4cd1 in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0) at ../src/os_posix/os_sleep.c:30
#2  0x0000560c8576505c in table_append (keyno=1009266) at ../../../test/format/ops.c:1633
#3  col_insert (cursor=0x7f12e826c180, tinfo=0x560c87810ba0) at ../../../test/format/ops.c:1688
#4  ops (arg=0x560c87810ba0) at ../../../test/format/ops.c:756
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f12f8e0d700 (LWP 21192)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85a950, cond=0x560c8695f8c0, usecs=usecs@entry=100000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12f8e0ceab) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c85859ed0 in __wt_cond_wait (run_func=0x0, usecs=100000, cond=<optimized out>, session=0x7f12fc85a950) at ../src/include/misc.i:19
#3  __log_file_server (arg=0x7f12fc85a950) at ../src/conn/conn_log.c:633
#4  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f12f7e0b700 (LWP 21194)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85b290, cond=cond@entry=0x560c86969460, usecs=810000, run_func=<optimized out>, signalled=signalled@entry=0x7f12f7e0ae93) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c857d71c6 in __wt_cond_auto_wait_signal (session=session@entry=0x7f12fc85b290, cond=0x560c86969460, progress=<optimized out>, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12f7e0ae93) at ../src/support/cond_auto.c:61
#3  0x0000560c85859993 in __log_server (arg=0x7f12fc85b290) at ../src/conn/conn_log.c:920
#4  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#5  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f12f760a700 (LWP 21195)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85ce50, cond=cond@entry=0x560c8691c5c0, usecs=703000, run_func=<optimized out>, signalled=signalled@entry=0x7f12f7609cd7) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c857d71c6 in __wt_cond_auto_wait_signal (session=session@entry=0x7f12fc85ce50, cond=0x560c8691c5c0, progress=progress@entry=false, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12f7609cd7) at ../src/support/cond_auto.c:61
#3  0x0000560c857d7221 in __wt_cond_auto_wait (session=session@entry=0x7f12fc85ce50, cond=<optimized out>, progress=progress@entry=false, run_func=run_func@entry=0x0) at ../src/support/cond_auto.c:80
#4  0x0000560c8578dcd5 in __wt_evict_thread_run (session=<optimized out>, thread=0x560c8698c670) at ../src/evict/evict_lru.c:310
#5  0x0000560c857e4ba1 in __thread_run (arg=0x560c8698c670) at ../src/support/thread_group.c:31
#6  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#7  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f12f860c700 (LWP 21193)):
#0  0x00007f12fc053fb9 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/x86_64-linux-gnu/libpthread.so.0
#1  0x0000560c857a473e in __wt_cond_wait_signal (session=session@entry=0x7f12fc85adf0, cond=cond@entry=0x560c86964690, usecs=1000000, run_func=<optimized out>, signalled=signalled@entry=0x7f12f860bea7) at ../src/os_posix/os_mtx_cond.c:121
#2  0x0000560c857d71c6 in __wt_cond_auto_wait_signal (session=session@entry=0x7f12fc85adf0, cond=0x560c86964690, progress=progress@entry=false, run_func=run_func@entry=0x0, signalled=signalled@entry=0x7f12f860bea7) at ../src/support/cond_auto.c:61
#3  0x0000560c857d7221 in __wt_cond_auto_wait (session=session@entry=0x7f12fc85adf0, cond=<optimized out>, progress=progress@entry=false, run_func=run_func@entry=0x0) at ../src/support/cond_auto.c:80
#4  0x0000560c8585b1a3 in __log_wrlsn_server (arg=0x7f12fc85adf0) at ../src/conn/conn_log.c:823
#5  0x00007f12fc04d6db in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f12fbd7661f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f12fc880b80 (LWP 21185)):
#0  0x00007f12fbc93e87 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f12fbc957f1 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2  0x0000560c8579dfe3 in __wt_abort (session=session@entry=0x0) at ../src/os_common/os_abort.c:30
#3  0x0000560c85761df0 in wts_ops (lastrun=lastrun@entry=false) at ../../../test/format/ops.c:255
#4  0x0000560c8575cb3c in main (argc=<optimized out>, argv=<optimized out>) at ../../../test/format/t.c:212