++ SEGFAULT_SIGNALS=all
++ nice catchsegv ./t -1 -c ../../../test/format/CONFIG.stress
[1534214565:181172][39585:0x3ff47fff910], t, file:wt.wt, WT_SESSION.verify: __wt_page_out, 75: !__wt_page_is_modified(page)
[1534214565:181666][39585:0x3ff47fff910], t, file:wt.wt, WT_SESSION.verify: __wt_abort, 30: aborting WiredTiger library
t: process 39585
*** Aborted
Register dump:

 GPR0: 0000000000000000  GPR1: 000003ff47fff910  GPR2: 0000000000000000  GPR3: 0000000000009acd
 GPR4: 0000000000000006  GPR5: 000003ff00000002  GPR6: 000000008024fb2c  GPR7: 000003ffce67f170
 GPR8: 0000000080003948  GPR9: 000003ff47fff200  GPRA: 000003ff47fff910  GPRB: 000003ff948ac4a8
 GPRC: 000003ff948aa000  GPRD: 000003ff948ac4b8  GPRE: 000003ff94742300  GPRF: 000003ff47ffdbc0

 PSW.MASK: 0705200180000000  PSW.ADDR: 000003ff94740a78  TRAP: 

Backtrace:
/lib64/libc.so.6(gsignal+0x40)[0x3ff94740a78]
/lib64/libc.so.6(abort+0x128)[0x3ff94742300]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/os_common/os_alloc.c:34(__wt_calloc)[0x8006a4b8]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/btree/bt_discard.c:76(__wt_page_out)[0x8010d2ac]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/btree/bt_discard.c:45(__wt_ref_out)[0x8010d1c2]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/evict/evict_file.c:126(__wt_evict_file)[0x801ba95c]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/btree/bt_sync.c:434(__wt_cache_op)[0x8014720a]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/btree/bt_vrfy.c:249(__wt_verify)[0x8014a830]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/schema/schema_worker.c:35(__wt_exclusive_handle_operation)[0x800a6fd8]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/schema/schema_worker.c:75(__wt_schema_worker)[0x800a717a]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/schema/schema_worker.c:113(__wt_schema_worker)[0x800a74f2]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/../src/session/session_api.c:1608 (discriminator 2)(__session_verify)[0x800b8cd6]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/test/format/../../../test/format/backup.c:53(check_copy)[0x80003cae]
/mnt/workspace/wiredtiger-test-format-stress-zseries/build_posix/test/format/../../../test/format/backup.c:120(backup)[0x80004442]
/lib64/libpthread.so.0(+0x81f2)[0x3ff94a881f2]
/lib64/libc.so.6(+0x1098da)[0x3ff948098da]

############################################
#  RUN PARAMETERS
############################################
abort=0
alter=0
auto_throttle=1
backups=1
bitcnt=3
bloom=1
bloom_bit_count=17
bloom_hash_count=12
bloom_oldest=1
cache=30
cache_minimum=20
checkpoints=on
checkpoint_log_size=63
checkpoint_wait=94
checksum=on
chunk_size=6
compaction=1
compression=lz4
data_extend=0
data_source=table
delete_pct=4
dictionary=0
direct_io=0
encryption=none
evict_max=1
file_type=row-store
firstfit=0
huffman_key=0
huffman_value=0
independent_thread_rng=1
in_memory=0
insert_pct=0
internal_key_truncation=1
internal_page_max=9
isolation=random
key_gap=6
key_max=65
key_min=21
leaf_page_max=13
leak_memory=0
logging=0
logging_archive=1
logging_compression=none
logging_file_max=207240
logging_prealloc=1
long_running_txn=0
lsm_worker_threads=3
merge_max=5
mmap=1
modify_pct=94
ops=0
prefix_compression=0
prefix_compression_min=8
prepare=0
quiet=1
read_pct=1
rebalance=1
repeat_data_pct=31
reverse=0
rows=1000000
runs=1
salvage=1
split_pct=53
statistics=1
statistics_server=0
threads=30
timer=4
timing_stress_checkpoint=0
timing_stress_lookaside_sweep=0
timing_stress_split_1=0
timing_stress_split_2=0
timing_stress_split_3=0
timing_stress_split_4=0
timing_stress_split_5=0
timing_stress_split_6=0
timing_stress_split_7=0
timing_stress_split_8=0
transaction_timestamps=1
transaction-frequency=12
truncate=1
value_max=3966
value_min=15
verify=1
wiredtiger_config=
write_pct=1
############################################