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  1. WiredTiger
  2. WT-650

LSM segv with riak

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    Details

    • Type: Task
    • Status: Closed
    • Resolution: Done
    • Affects Version/s: None
    • Fix Version/s: WT1.6.5
    • Labels:
      None

      Description

      Something in the recent changes to __clsm_open_cursors is now causing riak to segv.

      (gdb) bt
      #0 0x00007fba3e886a8f in __clsm_open_cursors (clsm=0x7fb978003b40, update=0,
      start_chunk=0, start_id=0) at ../src/lsm/lsm_cursor.c:324
      WT-1 0x00007fba3e88601a in __clsm_enter (clsm=0x7fb978003b40, update=0)
      at ../src/lsm/lsm_cursor.c:93
      WT-2 0x00007fba3e887fb2 in __clsm_search (cursor=0x7fb978003b40)
      at ../src/lsm/lsm_cursor.c:686
      WT-3 0x00007fba3eae3bc3 in fn_work_wterl_get (env=0x14ba480,
      ref=140434394847234, pid=0x7fb95c0008d0, worker_id=1, args=0x7fb964000900)
      at c_src/wterl.c:1375
      WT-4 0x00007fba3eadd999 in async_nif_worker_fn (arg=0x7fb9e00009a0)
      at c_src/async_nif.h:426
      WT-5 0x00000000005939e0 in thr_wrapper (vtwd=0x7fba47f1fa60)
      at pthread/ethread.c:106
      WT-6 0x00007fba4d4efc6b in start_thread () from /lib64/libpthread.so.0
      WT-7 0x00007fba4d0365ed in clone () from /lib64/libc.so.6

      The failing line is:
      324 clsm->txnid_max[i] = chunk->txnid_max;

      And it is failing because clsm->txnid_max is NULL.

      (gdb) p/x *clsm
      $7 = {iface = {session = 0x7fba3cedd4a0, uri = 0x7fb9a4003560,
      key_format = 0x7fb9a40035a0, value_format = 0x7fb9a40035c0,
      get_key = 0x7fba3e87db78, get_value = 0x7fba3e87e746,
      set_key = 0x7fba3e87dc3b, set_value = 0x7fba3e87eab6,
      compare = 0x7fba3e88704f, next = 0x7fba3e887431, prev = 0x7fba3e887901,
      reset = 0x7fba3e887db6, search = 0x7fba3e887ef2,
      search_near = 0x7fba3e8884ab, insert = 0x7fba3e8892d5,
      update = 0x7fba3e8897f1, remove = 0x7fba3e889cf5, close = 0x7fba3e88a092,
      q =

      {tqe_next = 0x7fb978002810, tqe_prev = 0x7fba3cedd568}

      , recno = 0x0,
      raw_recno_buf =

      {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}

      , key =

      { data = 0x1409040, size = 0x15, flags = 0x0, mem = 0x0, memsize = 0x0}

      ,
      value =

      {data = 0x7fba3d8a7b60, size = 0x4a3, flags = 0x0, mem = 0x0, memsize = 0x0}

      , saved_err = 0x0, flags = 0x3a0},
      lsm_tree = 0x7fb9a4002c80, dsk_gen = 0x1, nchunks = 0x2, nupdates = 0x1,
      blooms = 0x7fb978003a40, bloom_alloc = 0x50, cursors = 0x7fb9780051d0,
      cursor_alloc = 0x50, current = 0x0, primary_chunk = 0x0, txnid_max = 0x0,
      txnid_alloc = 0x0, flags = 0x60}

      I'll investigate more and post an update when I have one.

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              • Assignee:
                Unassigned
                Reporter:
                sue.loverso Sue LoVerso
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                • Created:
                  Updated:
                  Resolved: