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  1. WiredTiger
  2. WT-682

wtperf failure: accessing a freed page

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    • Task
    • Status: Closed
    • Resolution: Done
    • None
    • WT1.6.5
    • None

    Description

      I'm running a script over the wtperf configs and the 3rd iteration of evict-lsm took a segv.

      (gdb) bt
      		 
      #0  0x00000000004432c5 in __wt_tree_walk (session=0xd17060, 
          pagep=0x7fb9401c3358, flags=16) at ../src/btree/bt_walk.c:242
      		 
      WT-1  0x0000000000431ff6 in __evict_walk_file (session=0xd17060, 
          slotp=0x7fb9f041bd5c, clean=1) at ../src/btree/bt_evict.c:826
      		 
      WT-2  0x0000000000431ac5 in __evict_walk (session=0xd17060, 
          entriesp=0x7fb9f041bdc0, clean=1) at ../src/btree/bt_evict.c:750
      		 
      WT-3  0x00000000004316a6 in __evict_lru (session=0xd17060, clean=1)
      		 
          at ../src/btree/bt_evict.c:631
      		 
      WT-4  0x0000000000430bb3 in __evict_worker (session=0xd17060)
      		 
          at ../src/btree/bt_evict.c:252
      		 
      WT-5  0x00000000004307cc in __wt_cache_evict_server (arg=0xd17060)
      		 
          at ../src/btree/bt_evict.c:160
      		 
      WT-6  0x00007fb9f10e4c6b in start_thread () from /lib64/libpthread.so.0
      		 
      WT-7  0x00007fb9f0a1d5ed in clone () from /lib64/libc.so.6
      		 
       
      		 
      241                     if ((prev && slot == 0) ||
      		 
      242                         (!prev && slot == page->entries - 1)) {
      		 
       
      		 
      (gdb) p *page
      		 
      Cannot access memory at address 0x7f9239e9e4819bd6

      Not sure how reproducible it is, but clearly doesn't happen every time since the other 2 iterations passed.

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            People

              michael.cahill@mongodb.com Michael Cahill (Inactive)
              sue.loverso@mongodb.com Susan LoVerso
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