=================================================================
==5128==ERROR: AddressSanitizer: heap-use-after-free on address 0x0b90058f8800 at pc 0x0000100ccf34 bp 0x3fffa6d38ef0 sp 0x3fffa6d38f10
WRITE of size 64 at 0x0b90058f8800 thread T19
    #0 0x100ccf30 in __asan_memcpy /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:413
    #1 0x10446c38 in __wt_bt_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_io.c:104:3
    #2 0x1045181c in __ovfl_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_ovfl.c:31:2
    #3 0x10451624 in __wt_ovfl_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_ovfl.c:73:6
    #4 0x1069cf00 in __cell_data_ref /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cell.i:761:3
    #5 0x10699eb8 in __wt_page_cell_data_ref /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cell.i:802:10
    #6 0x1069e2ec in __cursor_row_slot_return /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cursor.i:402:10
    #7 0x1068f5dc in __cursor_row_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_curprev.c:526:11
    #8 0x106898b4 in __wt_btcur_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_curprev.c:605:11
    #9 0x10573e8c in __curfile_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/cursor/cur_file.c:156:13
    #10 0x105f92d0 in __clsm_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/lsm/lsm_cursor.c:1109:3
    #11 0x1014d9a0 in nextprev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:931:47
    #12 0x101465bc in ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:707:16
    #13 0x101001c8 in __asan::AsanThread::ThreadStart(unsigned long, __sanitizer::atomic_uintptr_t*) /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_thread.cc:250
    #14 0x10032198 in asan_thread_start(void*) /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:236
    #15 0x3fffb0288940 in start_thread (/lib64/power8/libpthread.so.0+0x8940)
    #16 0x3fffaffd763c in __clone (/lib64/power8/libc.so.6+0x11763c)

0x0b90058f8800 is located 0 bytes inside of 86594-byte region [0x0b90058f8800,0x0b900590da42)
freed by thread T27 here:
    #0 0x100ea7fc in __interceptor_cfree.localalias.0 /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:54
    #1 0x10273fb8 in __wt_free_int /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/os_common/os_alloc.c:309:2
    #2 0x101d6ec4 in __wt_buf_free /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/buf.i:102:2
    #3 0x101d6a84 in __wt_cursor_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/cursor/cur_std.c:554:2
    #4 0x1057d06c in __curfile_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/cursor/cur_file.c:375:2
    #5 0x105f3c34 in __clsm_close_cursors /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/lsm/lsm_cursor.c:393:4
    #6 0x105f34d0 in __wt_clsm_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/lsm/lsm_cursor.c:1627:2
    #7 0x10338218 in __session_close /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/session/session_api.c:177:3
    #8 0x10143984 in ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:449:5
    #9 0x101001c8 in __asan::AsanThread::ThreadStart(unsigned long, __sanitizer::atomic_uintptr_t*) /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_thread.cc:250
    #10 0x10032198 in asan_thread_start(void*) /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:236
    #11 0x3fffb0288940 in start_thread (/lib64/power8/libpthread.so.0+0x8940)
    #12 0x3fffaffd763c in __clone (/lib64/power8/libc.so.6+0x11763c)

previously allocated by thread T19 here:
    #0 0x100eaf3c in realloc /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_malloc_linux.cc:77
    #1 0x10272e70 in __realloc_func /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/os_common/os_alloc.c:130:11
    #2 0x10273030 in __wt_realloc_noclear /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/os_common/os_alloc.c:171:10
    #3 0x10382c64 in __wt_buf_grow_worker /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/support/scratch.c:48:4
    #4 0x1044ce3c in __wt_buf_grow /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/buf.i:18:6
    #5 0x104486a4 in __wt_buf_initsize /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/buf.i:61:2
    #6 0x10446b84 in __wt_bt_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_io.c:92:3
    #7 0x1045181c in __ovfl_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_ovfl.c:31:2
    #8 0x10451624 in __wt_ovfl_read /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_ovfl.c:73:6
    #9 0x1069cf00 in __cell_data_ref /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cell.i:761:3
    #10 0x10699eb8 in __wt_page_cell_data_ref /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cell.i:802:10
    #11 0x1069e2ec in __cursor_row_slot_return /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/include/cursor.i:402:10
    #12 0x1068f5dc in __cursor_row_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_curprev.c:526:11
    #13 0x106898b4 in __wt_btcur_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/btree/bt_curprev.c:605:11
    #14 0x10573e8c in __curfile_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/cursor/cur_file.c:156:13
    #15 0x105f92d0 in __clsm_prev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/../src/lsm/lsm_cursor.c:1109:3
    #16 0x1014d9a0 in nextprev /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:931:47
    #17 0x101465bc in ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:707:16
    #18 0x101001c8 in __asan::AsanThread::ThreadStart(unsigned long, __sanitizer::atomic_uintptr_t*) /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_thread.cc:250
    #19 0x10032198 in asan_thread_start(void*) /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:236
    #20 0x3fffb0288940 in start_thread (/lib64/power8/libpthread.so.0+0x8940)
    #21 0x3fffaffd763c in __clone (/lib64/power8/libc.so.6+0x11763c)

Thread T19 created by T0 here:
    #0 0x10031f28 in pthread_create /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:245
    #1 0x101416cc in wts_ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:110:3
    #2 0x10155440 in main /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/t.c:216:5
    #3 0x3fffafee457c in generic_start_main.isra.0 (/lib64/power8/libc.so.6+0x2457c)
    #4 0x3fffafee4770 in __libc_start_main (/lib64/power8/libc.so.6+0x24770)

Thread T27 created by T0 here:
    #0 0x10031f28 in pthread_create /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:245
    #1 0x101416cc in wts_ops /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/ops.c:110:3
    #2 0x10155440 in main /home/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer-ppc/build_posix/test/format/../../../test/format/t.c:216:5
    #3 0x3fffafee457c in generic_start_main.isra.0 (/lib64/power8/libc.so.6+0x2457c)
    #4 0x3fffafee4770 in __libc_start_main (/lib64/power8/libc.so.6+0x24770)

SUMMARY: AddressSanitizer: heap-use-after-free /home/mcahill/src/llvm-3.9.0.src/projects/compiler-rt/lib/asan/asan_interceptors.cc:413 in __asan_memcpy
Shadow bytes around the buggy address:
  0x037200b1f0b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x037200b1f0c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x037200b1f0d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x037200b1f0e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x037200b1f0f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x037200b1f100:[fd]fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x037200b1f110: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x037200b1f120: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x037200b1f130: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x037200b1f140: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x037200b1f150: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07 
  Heap left redzone:       fa
  Heap right redzone:      fb
  Freed heap region:       fd
  Stack left redzone:      f1
  Stack mid redzone:       f2
  Stack right redzone:     f3
  Stack partial redzone:   f4
  Stack after return:      f5
  Stack use after scope:   f8
  Global redzone:          f9
  Global init order:       f6
  Poisoned by user:        f7
  Container overflow:      fc
  Array cookie:            ac
  Intra object redzone:    bb
  ASan internal:           fe
  Left alloca redzone:     ca
  Right alloca redzone:    cb
==5128==ABORTING

############################################
#  RUN PARAMETERS
############################################
abort=0
auto_throttle=1
backups=0
bitcnt=2
bloom=1
bloom_bit_count=55
bloom_hash_count=6
bloom_oldest=0
cache=270
checkpoints=1
checksum=uncompressed
chunk_size=9
compaction=0
compression=zlib
data_extend=0
data_source=lsm
delete_pct=0
dictionary=0
direct_io=0
encryption=none
evict_max=0
file_type=row-store
firstfit=0
huffman_key=0
huffman_value=0
in_memory=0
insert_pct=53
internal_key_truncation=1
internal_page_max=17
isolation=read-committed
key_gap=17
key_max=93
key_min=18
leaf_page_max=11
leak_memory=0
logging=0
logging_archive=1
logging_compression=none
logging_prealloc=1
long_running_txn=0
lsm_worker_threads=3
merge_max=7
mmap=1
ops=100000
prefix_compression=1
prefix_compression_min=0
quiet=1
repeat_data_pct=47
reverse=0
rows=100000
runs=1
rebalance=1
salvage=1
split_pct=73
statistics=0
statistics_server=0
threads=13
timer=20
transaction-frequency=74
value_max=3478
value_min=4
verify=1
wiredtiger_config=
write_pct=83
############################################