nice ./t
t: process 18828
=================================================================
==18828==ERROR: AddressSanitizer: heap-use-after-free on address 0x61e002a82a28 at pc 0x6d2f9d bp 0x7f1ff853ff70 sp 0x7f1ff853ff68
READ of size 1855 at 0x61e002a82a28 thread T69
    #0 0x6d2f9c in __wt_buf_set /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/buf.i:78
    WT-1 0x6d25eb in __wt_session_copy_values /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/session/session_api.c:46
    WT-2 0x73fade in __wt_txn_begin /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/txn/txn.c:283
    WT-3 0xc2d85c in __wt_txn_autocommit_check /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/txn.i:192
    WT-4 0xc28f6e in __wt_page_in_func /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_page.c:128:15
    WT-5 0x964568 in __wt_page_swap_func /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/btree.i:1020
    WT-6 0x95e510 in __wt_row_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/row_srch.c:295:17
    WT-7 0xb9967d in __cursor_row_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_cursor.c:238
    WT-8 0xb970a4 in __wt_btcur_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_cursor.c:309
    WT-9 0x9eafc7 in __curfile_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/cursor/cur_file.c:165
    WT-10 0x609cdd in __wt_metadata_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/meta/meta_table.c:200
    WT-11 0xb006c2 in __wt_meta_checkpoint_last_name /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/meta/meta_ckpt.c:72
    WT-12 0x704181 in __wt_session_get_btree_ckpt /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/session/session_dhandle.c:224
    WT-13 0x9fc62a in __wt_curfile_open /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/cursor/cur_file.c:453
    WT-14 0x6d4fcc in __wt_open_cursor /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/session/session_api.c:272
    WT-15 0xa96b72 in __clsm_open_cursors /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:573
    WT-16 0xabbb26 in __clsm_enter /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:225
    WT-17 0xab33dd in __clsm_remove /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:1393
    WT-18 0x4c1839 in row_remove /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:1041
    WT-19 0x4bb9ff in ops /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:383
    WT-20 0x7f200e02c181 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x8181)
    WT-21 0x7f200d623fbc (/lib/x86_64-linux-gnu/libc.so.6+0xfafbc)

0x61e002a82a28 is located 40 bytes inside of 2048-byte region [0x61e002a82a00,0x61e002a83200)
freed by thread T69 here:
    #0 0x48b2f1 in __interceptor_free (/fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x48b2f1)
    WT-1 0x61e80b in __wt_free_int /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/os_posix/os_alloc.c:237
    WT-2 0x5756eb in __wt_buf_free /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/buf.i:112
    WT-3 0x5748d2 in __wt_cursor_close /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/cursor/cur_std.c:450
    WT-4 0x9f9d08 in __curfile_close /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/cursor/cur_file.c:328
    WT-5 0xab7ae9 in __clsm_close_cursors /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:349
    WT-6 0xa952f3 in __clsm_open_cursors /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:541
    WT-7 0xabbb26 in __clsm_enter /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:225
    WT-8 0xab33dd in __clsm_remove /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:1393
    WT-9 0x4c1839 in row_remove /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:1041
    WT-10 0x4bb9ff in ops /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:383
    WT-11 0x7f200e02c181 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x8181)

previously allocated by thread T69 here:
    #0 0x48bbbc in __interceptor_posix_memalign (/fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x48bbbc)
    WT-1 0x61d878 in __wt_realloc_aligned /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/os_posix/os_alloc.c:139
    WT-2 0x727877 in __wt_buf_grow_worker /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/support/scratch.c:44
    WT-3 0xcb61d2 in __wt_buf_grow /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/buf.i:17
    WT-4 0xcb5732 in __wt_buf_init /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/buf.i:46
    WT-5 0xcb0e88 in __wt_block_read_off /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/block/block_read.c:190
    WT-6 0xcb3add in __wt_bm_read /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/block/block_read.c:102
    WT-7 0xc0bebf in __wt_bt_read /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_io.c:34
    WT-8 0xc1ddf9 in __ovfl_read /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_ovfl.c:30
    WT-9 0xc1d3f1 in __wt_ovfl_read /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_ovfl.c:71
    WT-10 0xc5257c in __cell_data_ref /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/cell.i:748
    WT-11 0xc5156a in __wt_page_cell_data_ref /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/cell.i:789:10
    WT-12 0xc4ef9d in __wt_kv_return /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_ret.c:113
    WT-13 0xb97358 in __wt_btcur_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/btree/bt_cursor.c:313
    WT-14 0x9eafc7 in __curfile_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/cursor/cur_file.c:165
    WT-15 0xabda5b in __clsm_lookup /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:1041
    WT-16 0xaa60dd in __clsm_search /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/lsm/lsm_cursor.c:1088
    WT-17 0x4c175a in row_remove /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:1040
    WT-18 0x4bb9ff in ops /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:383
    WT-19 0x7f200e02c181 in start_thread (/lib/x86_64-linux-gnu/libpthread.so.0+0x8181)

Thread T69 created by T0 here:
    #0 0x4776d5 in __interceptor_pthread_create (/fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/t+0x4776d5)
    WT-1 0x4b700e in wts_ops /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/ops.c:98
    WT-2 0x4cddc1 in main /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/test/format/../../../test/format/t.c:190
    WT-3 0x7f200d54aec4 (/lib/x86_64-linux-gnu/libc.so.6+0x21ec4)

SUMMARY: AddressSanitizer: heap-use-after-free /fast/jenkins/jenkins/workspace/wiredtiger-test-format-stress-sanitizer/build_posix/../src/include/buf.i:78 __wt_buf_set
Shadow bytes around the buggy address:
  0x0c3c805484f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c80548500: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c80548510: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c80548520: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  0x0c3c80548530: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c3c80548540: fd fd fd fd fd[fd]fd fd fd fd fd fd fd fd fd fd
  0x0c3c80548550: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c3c80548560: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c3c80548570: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c3c80548580: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  0x0c3c80548590: 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
  Contiguous container OOB:fc
  ASan internal:           fe
==18828==ABORTING
+ cleanup
+ status=1
+ '[' -f RUNDIR/CONFIG ']'
+ cat RUNDIR/CONFIG
############################################
#  RUN PARAMETERS
############################################
auto_throttle=0
firstfit=0
bitcnt=1
bloom=1
bloom_bit_count=58
bloom_hash_count=28
bloom_oldest=0
cache=300
checkpoints=1
checksum=uncompressed
chunk_size=10
compaction=0
compression=none
data_extend=0
data_source=lsm
delete_pct=8
dictionary=0
evict_max=1
file_type=row-store
backups=0
huffman_key=0
huffman_value=0
insert_pct=84
internal_key_truncation=1
internal_page_max=12
isolation=random
key_gap=16
key_max=32
key_min=10
leak_memory=0
leaf_page_max=11
logging=0
lsm_worker_threads=3
merge_max=13
mmap=1
ops=100000
prefix_compression=0
prefix_compression_min=6
repeat_data_pct=20
reverse=0
rows=100000
runs=1
split_pct=78
statistics=0
threads=22
value_max=2198
value_min=12
wiredtiger_config=
write_pct=70
############################################