Thread 35 (Thread 0x3ff76ffd910 (LWP 1688)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff76ffc9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff76ffcaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff76ffcaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad10590, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff76ffcbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad10590)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad10590, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad10590) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad10590, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff48092360) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=true, tinfo=0x1ad08010) at ../test/format/ops.c:1598
#10 ops (arg=0x1ad08010) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff76ffd910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 34 (Thread 0x3ff74ff9910 (LWP 1693)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff74ff89a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff74ff8af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff74ff8af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad111c0, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff74ff8bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad111c0)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad111c0, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad111c0) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad111c0, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff44010000) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=true, tinfo=0x1acf56f0) at ../test/format/ops.c:1598
#10 ops (arg=0x1acf56f0) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff74ff9910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 33 (Thread 0x3ff5ffff910 (LWP 1700)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff5fffe9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff5fffeaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff5fffeaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad13240, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff5fffebd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad13240)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad13240, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad13240) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad13240, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff2408b450) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1acc9af0) at ../test/format/ops.c:1598
#10 ops (arg=0x1acc9af0) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff5ffff910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 32 (Thread 0x3ff853ff910 (LWP 1684)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff853fe9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff853feaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff853feaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0e920, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff853febd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0e920)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0e920, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0e920) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0e920, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff7c054aa0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1aca7e00) at ../test/format/ops.c:1598
#10 ops (arg=0x1aca7e00) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff853ff910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 31 (Thread 0x3ff6d7fa910 (LWP 1698)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6d7f99a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6d7f9af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6d7f9af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad12a20, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6d7f9bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad12a20)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad12a20, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad12a20) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad12a20, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff2c00d6b0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1ac594f0) at ../test/format/ops.c:1598
#10 ops (arg=0x1ac594f0) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6d7fa910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 30 (Thread 0x3ff757fa910 (LWP 1692)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff757f99a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff757f9af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff757f9af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad115d0, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff757f9bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad115d0)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad115d0, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad115d0) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad115d0, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff38055cb0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1acf5000) at ../test/format/ops.c:1598
#10 ops (arg=0x1acf5000) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff757fa910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 29 (Thread 0x3ff6e7fc910 (LWP 1689)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6e7fb9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6e7fbaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6e7fbaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad109a0, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6e7fbbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad109a0)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad109a0, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad109a0) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad109a0, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106e6ba in __curfile_remove (cursor=0x3ff4c050790) at ../src/cursor/cur_file.c:430
#9  0x0000000001010636 in col_remove (positioned=true, tinfo=0x1aca6410) at ../test/format/ops.c:1796
#10 ops (arg=0x1aca6410) at ../test/format/ops.c:877
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6e7fc910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 28 (Thread 0x3ff767fc910 (LWP 1690)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff767fb9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff767fbaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff767fbaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad119e0, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff767fbbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad119e0)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad119e0, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad119e0) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad119e0, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106da7c in __curfile_insert (cursor=0x3ff3c0382e0) at ../src/cursor/cur_file.c:282
#9  0x000000000100f920 in col_insert (tinfo=0x1ac85610) at ../test/format/ops.c:1734
#10 ops (arg=0x1ac85610) at ../test/format/ops.c:829
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff767fc910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 27 (Thread 0x3ff8a9fc910 (LWP 1678)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff8a9fbda8,
    expected=0, futex_word=0x1acaefc8) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff8a9fbf00, mutex=0x1acaef78, cond=0x1acaefa0)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1acaefa0, mutex=mutex@entry=0x1acaef78,
    abstime=abstime@entry=0x3ff8a9fbf00) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0d4d0, cond=0x1acaef70,
    usecs=<optimized out>, run_func=run_func@entry=0x105f018 <__sweep_server_run_chk>,
    signalled=signalled@entry=0x3ff8a9fbfdf) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000105f2da in __sweep_server (arg=0x1ad0d4d0) at ../src/conn/conn_sweep.c:285
#5  0x000003ff8c707aa8 in start_thread (arg=0x3ff8a9fc910) at pthread_create.c:463
#6  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 26 (Thread 0x3ff6effd910 (LWP 1696)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6effc9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6effcaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6effcaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad12610, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6effcbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad12610)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad12610, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad12610) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad12610, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff280a24d0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1ac7baf0) at ../test/format/ops.c:1598
#10 ops (arg=0x1ac7baf0) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6effd910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 25 (Thread 0x3ff8b1fd910 (LWP 1677)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff8b1fcdc8,
    expected=0, futex_word=0x1aca4d98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff8b1fcf20, mutex=0x1aca4d48, cond=0x1aca4d70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1aca4d70, mutex=mutex@entry=0x1aca4d48,
    abstime=abstime@entry=0x3ff8b1fcf20) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0d0c0, cond=0x1aca4d40,
    usecs=usecs@entry=10000000, run_func=<optimized out>, signalled=signalled@entry=0x3ff8b1fcfe7)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000111431a in __wt_cond_wait (run_func=<optimized out>, usecs=10000000, cond=<optimized out>,
    session=0x1ad0d0c0) at ../src/include/misc_inline.h:19
#5  __thread_run (arg=0x1acd0010) at ../src/support/thread_group.c:29
#6  0x000003ff8c707aa8 in start_thread (arg=0x3ff8b1fd910) at pthread_create.c:463
#7  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 24 (Thread 0x3ff57fff910 (LWP 1701)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff57ffe9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff57ffeaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff57ffeaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad13e70, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff57ffebd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad13e70)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad13e70, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad13e70) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad13e70, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106da7c in __curfile_insert (cursor=0x3ff10013740) at ../src/cursor/cur_file.c:282
#9  0x000000000100f920 in col_insert (tinfo=0x1acabe00) at ../test/format/ops.c:1734
#10 ops (arg=0x1acabe00) at ../test/format/ops.c:829
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff57fff910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 23 (Thread 0x3ff6dffb910 (LWP 1697)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6dffa9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6dffaaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6dffaaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad11df0, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6dffabd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad11df0)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad11df0, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad11df0) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad11df0, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff300505b0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1ac58e00) at ../test/format/ops.c:1598
#10 ops (arg=0x1ac58e00) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6dffb910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 22 (Thread 0x3ff87403910 (LWP 1680)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff874029a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff87402af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff87402af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0f960, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff87402bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0f960)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0f960, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0f960) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0f960, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff6403d350) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1acfa710) at ../test/format/ops.c:1598
#10 ops (arg=0x1acfa710) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff87403910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 21 (Thread 0x3ff86401910 (LWP 1682)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff864009a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff86400af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff86400af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0f140, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff86400bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0f140)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0f140, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0f140) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0f140, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106e6ba in __curfile_remove (cursor=0x3ff6801c590) at ../src/cursor/cur_file.c:430
#9  0x0000000001010636 in col_remove (positioned=false, tinfo=0x1ac5c230) at ../test/format/ops.c:1796
#10 ops (arg=0x1ac5c230) at ../test/format/ops.c:877
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff86401910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 20 (Thread 0x3ff85c00910 (LWP 1683)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff85bff9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff85bffaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff85bffaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0f550, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff85bffbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0f550)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0f550, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0f550) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0f550, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106e6ba in __curfile_remove (cursor=0x3ff60022750) at ../src/cursor/cur_file.c:430
#9  0x0000000001010636 in col_remove (positioned=true, tinfo=0x1acd0200) at ../test/format/ops.c:1796
#10 ops (arg=0x1acd0200) at ../test/format/ops.c:877
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff85c00910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 19 (Thread 0x3ff5f7fe910 (LWP 1702)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff5f7fd9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff5f7fdaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff5f7fdaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad14280, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff5f7fdbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad14280)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad14280, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad14280) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad14280, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106da7c in __curfile_insert (cursor=0x3ff14093850) at ../src/cursor/cur_file.c:282
#9  0x000000000100f920 in col_insert (tinfo=0x1acac4f0) at ../test/format/ops.c:1734
#10 ops (arg=0x1acac4f0) at ../test/format/ops.c:829
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff5f7fe910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 18 (Thread 0x3ff86c02910 (LWP 1681)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff86c019a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff86c01af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff86c01af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0ed30, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff86c01bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0ed30)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0ed30, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0ed30) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0ed30, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106da7c in __curfile_insert (cursor=0x3ff70020260) at ../src/cursor/cur_file.c:282
#9  0x000000000100f920 in col_insert (tinfo=0x1acd65e0) at ../test/format/ops.c:1734
#10 ops (arg=0x1acd65e0) at ../test/format/ops.c:829
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff86c02910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 17 (Thread 0x3ff6ffff910 (LWP 1694)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6fffe9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6fffeaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6fffeaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad13a60, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6fffebd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad13a60)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad13a60, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad13a60) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad13a60, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106da7c in __curfile_insert (cursor=0x3ff1c0103d0) at ../src/cursor/cur_file.c:282
#9  0x000000000100f920 in col_insert (tinfo=0x1ac54010) at ../test/format/ops.c:1734
#10 ops (arg=0x1ac54010) at ../test/format/ops.c:829
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6ffff910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 16 (Thread 0x3ff84bfe910 (LWP 1685)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff84bfd9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff84bfdaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff84bfdaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0fd70, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff84bfdbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0fd70)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0fd70, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0fd70) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0fd70, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff58021770) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=true, tinfo=0x1ad09210) at ../test/format/ops.c:1598
#10 ops (arg=0x1ad09210) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff84bfe910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 15 (Thread 0x3ff5effd910 (LWP 1703)):
#0  0x000003ff8c4f2348 in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0,
    writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x3ff5effc880)
    at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000010c25ac in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0)
    at ../src/os_posix/os_sleep.c:30
#2  0x0000000001003fbc in backup (arg=<optimized out>) at ../test/format/backup.c:510
#3  0x000003ff8c707aa8 in start_thread (arg=0x3ff5effd910) at pthread_create.c:463
#4  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 14 (Thread 0x3ff87c04910 (LWP 1679)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff87c039a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff87c03af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff87c03af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0e510, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff87c03bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad0e510)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad0e510, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad0e510) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad0e510, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff7801b7b0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1acab510) at ../test/format/ops.c:1598
#10 ops (arg=0x1acab510) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff87c04910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 13 (Thread 0x3ff6f7fe910 (LWP 1695)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6f7fd9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6f7fdaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6f7fdaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad12200, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6f7fdbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad12200)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad12200, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad12200) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad12200, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff3401bb20) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1ac7b400) at ../test/format/ops.c:1598
#10 ops (arg=0x1ac7b400) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6f7fe910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 12 (Thread 0x3ff6cff9910 (LWP 1699)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff6cff89a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff6cff8af8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff6cff8af8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad12e30, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff6cff8bd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad12e30)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad12e30, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad12e30) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad12e30, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff20012c00) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1acc9400) at ../test/format/ops.c:1598
#10 ops (arg=0x1acc9400) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff6cff9910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 11 (Thread 0x3ff777fe910 (LWP 1687)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff777fd9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff777fdaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff777fdaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad10180, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff777fdbd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad10180)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad10180, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad10180) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad10180, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff500181c0) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1ac56e10) at ../test/format/ops.c:1598
#10 ops (arg=0x1ac56e10) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff777fe910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 10 (Thread 0x3ff75ffb910 (LWP 1691)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff75ffa9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff75ffaaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff75ffaaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad10db0, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff75ffabd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad10db0)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad10db0, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad10db0) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad10db0, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106e6ba in __curfile_remove (cursor=0x3ff40023870) at ../src/cursor/cur_file.c:430
#9  0x0000000001010636 in col_remove (positioned=false, tinfo=0x1ace1b50) at ../test/format/ops.c:1796
#10 ops (arg=0x1ace1b50) at ../test/format/ops.c:877
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff75ffb910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 9 (Thread 0x3ff77fff910 (LWP 1686)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff77ffe9a0,
    expected=0, futex_word=0x1ac83e98) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff77ffeaf8, mutex=0x1ac83e48, cond=0x1ac83e70)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac83e70, mutex=mutex@entry=0x1ac83e48,
    abstime=abstime@entry=0x3ff77ffeaf8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad13650, cond=0x1ac83e40,
    usecs=usecs@entry=10000, run_func=<error reading variable: value has been optimized out>,
    signalled=signalled@entry=0x3ff77ffebd8) at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000108def4 in __wt_cond_wait (run_func=0x0, usecs=10000, cond=<optimized out>, session=0x1ad13650)
    at ../src/include/misc_inline.h:19
#5  __wt_cache_eviction_worker (session=session@entry=0x1ad13650, busy=<optimized out>,
    readonly=readonly@entry=false, pct_full=<optimized out>) at ../src/evict/evict_lru.c:2453
#6  0x000000000111fc1e in __wt_cache_eviction_check (didworkp=0x0, readonly=false, busy=<optimized out>,
    session=0x1ad13650) at ../src/include/cache_inline.h:499
#7  __wt_txn_commit (session=session@entry=0x1ad13650, cfg=cfg@entry=0x0) at ../src/txn/txn.c:1777
#8  0x000000000106cd8e in __curfile_update (cursor=0x3ff1802e000) at ../src/cursor/cur_file.c:378
#9  0x0000000001011426 in col_update (positioned=false, tinfo=0x1acfc010) at ../test/format/ops.c:1598
#10 ops (arg=0x1acfc010) at ../test/format/ops.c:966
#11 0x000003ff8c707aa8 in start_thread (arg=0x3ff77fff910) at pthread_create.c:463
#12 0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 8 (Thread 0x3ff5e7fc910 (LWP 1704)):
#0  0x000003ff8c4f2348 in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0,
    writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x3ff5e7fbe98)
    at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000010c25ac in __wt_sleep (seconds=seconds@entry=1, micro_seconds=micro_seconds@entry=0)
    at ../src/os_posix/os_sleep.c:30
#2  0x000000000100a8ee in hs_cursor (arg=<optimized out>) at ../test/format/hs.c:96
#3  0x000003ff8c707aa8 in start_thread (arg=0x3ff5e7fc910) at pthread_create.c:463
#4  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 7 (Thread 0x3ff88c06910 (LWP 1673)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff88c05c78,
    expected=0, futex_word=0x1ac9156c) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff88c05dd0, mutex=0x1ac91518, cond=0x1ac91540)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ac91540, mutex=mutex@entry=0x1ac91518,
    abstime=abstime@entry=0x3ff88c05dd0) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0c080, cond=cond@entry=0x1ac91510,
    usecs=<optimized out>, run_func=<optimized out>, signalled=signalled@entry=0x3ff88c05f37)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000010fe536 in __wt_cond_auto_wait_signal (session=session@entry=0x1ad0c080, cond=0x1ac91510,
    progress=<optimized out>, run_func=run_func@entry=0x0, signalled=signalled@entry=0x3ff88c05f37)
    at ../src/support/cond_auto.c:70
#5  0x00000000010fe5a8 in __wt_cond_auto_wait (session=session@entry=0x1ad0c080, cond=<optimized out>,
    progress=<optimized out>, run_func=run_func@entry=0x0) at ../src/support/cond_auto.c:89
#6  0x000000000105aa0e in __log_wrlsn_server (arg=0x1ad0c080) at ../src/conn/conn_log.c:818
#7  0x000003ff8c707aa8 in start_thread (arg=0x3ff88c06910) at pthread_create.c:463
#8  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 6 (Thread 0x3ff8b9fe910 (LWP 1676)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff8b9fddc8,
    expected=0, futex_word=0x1ace4d08) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff8b9fdf20, mutex=0x1ace4cb8, cond=0x1ace4ce0)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1ace4ce0, mutex=mutex@entry=0x1ace4cb8,
    abstime=abstime@entry=0x3ff8b9fdf20) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0ccb0, cond=0x1ace4cb0,
    usecs=usecs@entry=10000000, run_func=<optimized out>, signalled=signalled@entry=0x3ff8b9fdfe7)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x000000000111431a in __wt_cond_wait (run_func=<optimized out>, usecs=10000000, cond=<optimized out>,
    session=0x1ad0ccb0) at ../src/include/misc_inline.h:19
#5  __thread_run (arg=0x1ad09af0) at ../src/support/thread_group.c:29
#6  0x000003ff8c707aa8 in start_thread (arg=0x3ff8b9fe910) at pthread_create.c:463
#7  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 5 (Thread 0x3ff88405910 (LWP 1674)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff88404d08,
    expected=0, futex_word=0x1acabcec) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff88404e60, mutex=0x1acabc98, cond=0x1acabcc0)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1acabcc0, mutex=mutex@entry=0x1acabc98,
    abstime=abstime@entry=0x3ff88404e60) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0c490, cond=cond@entry=0x1acabc90,
    usecs=<optimized out>, run_func=<optimized out>, signalled=signalled@entry=0x3ff88404fde)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x00000000010fe536 in __wt_cond_auto_wait_signal (session=session@entry=0x1ad0c490, cond=0x1acabc90,
    progress=<optimized out>, run_func=run_func@entry=0x0, signalled=signalled@entry=0x3ff88404fde)
    at ../src/support/cond_auto.c:70
#5  0x000000000105900a in __log_server (arg=0x1ad0c490) at ../src/conn/conn_log.c:916
#6  0x000003ff8c707aa8 in start_thread (arg=0x3ff88405910) at pthread_create.c:463
#7  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 4 (Thread 0x3ff89407910 (LWP 1668)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff89406d68,
    expected=0, futex_word=0x1acf9998) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff89406ec0, mutex=0x1acf9948, cond=0x1acf9970)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1acf9970, mutex=mutex@entry=0x1acf9948,
    abstime=abstime@entry=0x3ff89406ec0) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0b860, cond=0x1acf9940,
    usecs=usecs@entry=60000000, run_func=run_func@entry=0x105fd50 <__tiered_server_run_chk>,
    signalled=signalled@entry=0x3ff89406f97) at ../src/os_posix/os_mtx_cond.c:115
#4  0x0000000001061f02 in __tiered_server (arg=0x1ad0b860) at ../src/conn/conn_tiered.c:634
#5  0x000003ff8c707aa8 in start_thread (arg=0x3ff89407910) at pthread_create.c:463
#6  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 3 (Thread 0x3ff8c878720 (LWP 1656)):
#0  0x000003ff8c4f2348 in __GI___select (nfds=nfds@entry=0, readfds=readfds@entry=0x0,
    writefds=writefds@entry=0x0, exceptfds=exceptfds@entry=0x0, timeout=timeout@entry=0x3ffe577f0a0)
    at ../sysdeps/unix/sysv/linux/select.c:41
#1  0x00000000010c25ac in __wt_sleep (seconds=seconds@entry=0, micro_seconds=micro_seconds@entry=250000)
    at ../src/os_posix/os_sleep.c:30
#2  0x00000000010129d4 in operations (ops_seconds=ops_seconds@entry=75, lastrun=lastrun@entry=false)
    at ../test/format/ops.c:337
#3  0x0000000001015ea4 in main (argc=<optimized out>, argv=<optimized out>) at ../test/format/t.c:334

Thread 2 (Thread 0x3ff89c08910 (LWP 1672)):
#0  0x000003ff8c70dcfa in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x3ff89c07da0,
    expected=0, futex_word=0x1acf8fdc) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x3ff89c07ef8, mutex=0x1acf8f88, cond=0x1acf8fb0)
    at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=cond@entry=0x1acf8fb0, mutex=mutex@entry=0x1acf8f88,
    abstime=abstime@entry=0x3ff89c07ef8) at pthread_cond_wait.c:667
#3  0x00000000010c200a in __wt_cond_wait_signal (session=session@entry=0x1ad0bc70, cond=0x1acf8f80,
    usecs=usecs@entry=100000, run_func=run_func@entry=0x0, signalled=signalled@entry=0x3ff89c07fc0)
    at ../src/os_posix/os_mtx_cond.c:115
#4  0x0000000001059610 in __wt_cond_wait (run_func=0x0, usecs=100000, cond=<optimized out>, session=0x1ad0bc70)
    at ../src/include/misc_inline.h:19
#5  __log_file_server (arg=0x1ad0bc70) at ../src/conn/conn_log.c:629
#6  0x000003ff8c707aa8 in start_thread (arg=0x3ff89c08910) at pthread_create.c:463
#7  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65

Thread 1 (Thread 0x3ff8c1ff910 (LWP 1675)):
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x000003ff8c43f37a in __GI_abort () at abort.c:79
#2  0x00000000010ba654 in __wt_abort (session=session@entry=0x1ad0c8a0) at ../src/os_common/os_abort.c:30
#3  0x000000000110014e in __wt_panic_func (session=session@entry=0x1ad0c8a0, error=error@entry=110,
    func=func@entry=0x1266ab2 <__PRETTY_FUNCTION__.18129> "__wt_evict_thread_run", line=line@entry=324,
    category=category@entry=WT_VERB_DEFAULT, fmt=0x126661e "cache eviction thread error")
    at ../src/support/err.c:550
#4  0x0000000001094b58 in __wt_evict_thread_run (session=0x1ad0c8a0, thread=0x1aca6b20)
    at ../src/evict/evict_lru.c:324
#5  0x000000000111432a in __thread_run (arg=0x1aca6b20) at ../src/support/thread_group.c:31
#6  0x000003ff8c707aa8 in start_thread (arg=0x3ff8c1ff910) at pthread_create.c:463
#7  0x000003ff8c4fa936 in thread_start () at ../sysdeps/unix/sysv/linux/s390/s390-64/clone.S:65