(gdb) where
#0  0x0000003467632925 in raise () from /lib64/libc.so.6
WT-1  0x0000003467634105 in abort () from /lib64/libc.so.6
WT-2  0x00000000004af34b in __wt_abort (session=0x272a660)
    at ../src/os_posix/os_abort.c:24
WT-3  0x0000000000446fb0 in __wt_assert (session=0x272a660, error=0, 
    file_name=0x6743b7 "../src/include/btree.i", line_number=391, 
    fmt=0x674321 "%s") at ../src/support/err.c:452
WT-4  0x0000000000482da8 in __wt_page_modify_set (session=0x272a660, 
    page=0x7f56e00ffa30) at ../src/include/btree.i:391
WT-5  0x0000000000483297 in __wt_insert_serial (session=0x272a660, 
    page=0x7f56e00ffa30, ins_head=0x7f569403ae00, ins_stack=0x7f56941917b8, 
    new_insp=0x7f5720db99e8, new_ins_size=102, skipdepth=1)
    at ../src/include/serial.i:267
WT-6  0x0000000000483a44 in __wt_row_modify (session=0x272a660, 
    cbt=0x7f5694191670, key=0x7f5694191738, value=0x7f5694191760, 
    upd=0x7f5694167090, is_remove=0) at ../src/btree/row_modify.c:168
WT-7  0x00000000004c2dd2 in __cursor_row_modify (session=0x272a660, 
    cbt=0x7f5694191670, is_remove=0) at ../src/btree/bt_cursor.c:252
WT-8  0x00000000004c371e in __wt_btcur_insert (cbt=0x7f5694191670)
    at ../src/btree/bt_cursor.c:482
WT-9  0x00000000004920d5 in __curfile_insert (cursor=0x7f5694191670)
    at ../src/cursor/cur_file.c:223
WT-10 0x00000000004a8a9e in __clsm_put (session=0x272a660, clsm=0x7f5694063ef0, 
    key=0x7f5694063fb8, value=0x7f5720db9c50, position=0)
    at ../src/lsm/lsm_cursor.c:1234
WT-11 0x00000000004a9319 in __clsm_insert (cursor=0x7f5694063ef0)
    at ../src/lsm/lsm_cursor.c:1345
WT-12 0x000000000041163f in row_insert (cursor=0x7f5694063ef0, 
    key=0x7f5720db9e10, value=0x7f5720db9de0, keyno=25953)
    at ../../../test/format/ops.c:895
(gdb) p clsm->primary_chunk
$14 = (WT_LSM_CHUNK *) 0x7f56e001dbb0
(gdb) p lsm_tree->chunk[lsm_tree->nchunks - 1]
$15 = (WT_LSM_CHUNK *) 0x7f56e001dbb0
(gdb) p *clsm->primary_chunk
$16 = {uri = 0x7f56e0001880 "file:wt-000013.lsm", bloom_uri = 0x0, 
  create_ts = {tv_sec = 1402900173, tv_nsec = 277243912}, count = 13634, 
  size = 3121152, txnid_max = 308665, update_txn_max = 0, id = 13, 
  generation = 0, refcnt = 2, bloom_busy = 0, empty = 0 '\000', 
  evicted = 0 '\000', flags = 0}

(gdb) p /x lsm_tree->flags
$2 = 0x3a
(gdb) thread apply all where
...
Thread 13 (Thread 0x7f56c3fff700 (LWP 28501)):
#0  0x00000034676e15e3 in select () from /lib64/libc.so.6
WT-1  0x00000000004313e1 in __wt_sleep (seconds=1, micro_seconds=0)
    at ../src/os_posix/os_sleep.c:22
WT-2  0x0000000000429b76 in __wt_lsm_compact (session=0x272dd60, 
    name=0x7f56ac08f110 "lsm:wt", skip=0x7f56c3ffec6c)
    at ../src/lsm/lsm_tree.c:1049
WT-3  0x000000000043fcc7 in __wt_schema_worker (session=0x272dd60, 
    uri=0x7f56ac08f110 "lsm:wt", file_func=0, 
    name_func=0x429a4b <__wt_lsm_compact>, cfg=0x7f56c3ffed90, open_flags=0)
    at ../src/schema/schema_worker.c:37