abort=0
auto_throttle=1
backups=0
bitcnt=5
bloom=1
bloom_bit_count=59
bloom_hash_count=20
bloom_oldest=0
cache=84
checkpoints=1
checksum=uncompressed
chunk_size=5
compaction=0
compression=zlib
data_extend=1
data_source=table
delete_pct=34
dictionary=0
direct_io=0
encryption=none
evict_max=5
file_type=row-store
firstfit=0
huffman_key=0
huffman_value=0
in_memory=0
insert_pct=10
internal_key_truncation=1
internal_page_max=17
isolation=snapshot
key_gap=15
key_max=108
key_min=24
leaf_page_max=10
leak_memory=0
logging=0
logging_archive=0
logging_compression=none
logging_prealloc=1
long_running_txn=0
lsm_worker_threads=4
merge_max=12
mmap=0
ops=100000
prefix_compression=1
prefix_compression_min=0
quiet=1
repeat_data_pct=63
reverse=0
rows=100000
runs=1
rebalance=1
salvage=1
split_pct=75
statistics=0
statistics_server=0
threads=22
timer=20
transaction-frequency=50
value_max=2665
value_min=1
verify=1
wiredtiger_config=
write_pct=52

==25932==ERROR: AddressSanitizer: SEGV on unknown address 0x0ac82529adf0 (pc 0x000010028a98 bp 0x000000000480 sp 0x3fffa3397c10 T14)
ASAN:DEADLYSIGNAL
==25932==AddressSanitizer: while reporting a bug found another one. Ignoring.
    #0 0x10028a94 in __asan::Allocator::Allocate(unsigned long, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType, bool) /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_allocator.cc:395
    #1 0x10023480 in __asan::asan_posix_memalign(void**, unsigned long, unsigned long, __sanitizer::BufferedStackTrace*) /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_allocator.cc:751
    #2 0x100db8bc in posix_memalign /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:126
    #3 0x10247f90 in __wt_realloc_aligned /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/os_common/os_alloc.c:221:14
    #4 0x10353040 in __wt_buf_grow_worker /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/support/scratch.c:45:4
    #5 0x106024bc in __wt_buf_grow /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/buf.i:18:6
    #6 0x10601c94 in __wt_buf_init /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/buf.i:47:2
    #7 0x10600f10 in __wt_block_read_off /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/block/block_read.c:181:2
    #8 0x106000c4 in __wt_bm_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/block/block_read.c:101:2
    #9 0x103ff2fc in __wt_bt_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_io.c:45:3
    #10 0x10409c2c in __ovfl_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_ovfl.c:31:2
    #11 0x104096d8 in __wt_ovfl_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_ovfl.c:57:7
    #12 0x104cb6f0 in __cell_data_ref /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cell.i:754:3
    #13 0x104c76bc in __wt_dsk_cell_data_ref /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cell.i:791:10
    #14 0x104c512c in __wt_row_leaf_key_work /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/row_key.c:291:12
    #15 0x1063f80c in __cursor_row_slot_return /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cursor.i:370:8
    #16 0x106313f0 in __cursor_row_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_curprev.c:524:11
    #17 0x1062b79c in __wt_btcur_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_curprev.c:603:11
    #18 0x10525740 in __curfile_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/cursor/cur_file.c:156:13
    #19 0x101391e0 in nextprev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:931:47
    #20 0x10131d94 in ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:707:16
    #21 0x100ef0a8 in __asan::AsanThread::ThreadStart(unsigned long, __sanitizer::atomic_uintptr_t*) /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_thread.cc:183
    #22 0x100323a8 in asan_thread_start(void*) /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:228
    #23 0x3fffaca48940 in start_thread (/lib64/power8/libpthread.so.0+0x8940)
    #24 0x3fffac79763c in __clone (/lib64/power8/libc.so.6+0x11763c)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_allocator.cc:395 in __asan::Allocator::Allocate(unsigned long, unsigned long, __sanitizer::BufferedStackTrace*, __asan::AllocType, bool)
Thread T14 created by T0 here:
    #0 0x10032160 in pthread_create /home/mcahill/src/llvm-3.8.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:238
    #1 0x1012ca18 in wts_ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:110:3
    #2 0x1014169c in main /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/t.c:221:5
    #3 0x3fffac6a457c in generic_start_main.isra.0 (/lib64/power8/libc.so.6+0x2457c)
    #4 0x3fffac6a4770 in __libc_start_main (/lib64/power8/libc.so.6+0x24770)