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Type:
Bug
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Resolution: Duplicate
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Priority:
Major - P3
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None
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Affects Version/s: None
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Component/s: None
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Storage Engines 2020-03-09
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2
When running test/format with 10 parallel processes, several of them are segfaulting each iteration (usually at least 3-4 of the 10) with a segfault, dereferencing a NULL pointer. Here's the stack:
Program terminated with signal 11, Segmentation fault.
#0 0x0000000000584b8e in __tree_walk_internal (session=0x7f0d5f4cd4f0, refp=0x7f0d59db3be8, walkcntp=0x7f0d59db3be0, skip_func=0x0,
func_cookie=0x0, flags=469) at ../src/btree/bt_walk.c:419
419 ref = pindex->index[slot];
(gdb) bt
#0 0x0000000000584b8e in __tree_walk_internal (session=0x7f0d5f4cd4f0, refp=0x7f0d59db3be8, walkcntp=0x7f0d59db3be0, skip_func=0x0,
func_cookie=0x0, flags=469) at ../src/btree/bt_walk.c:419
#1 0x0000000000584fb7 in __wt_tree_walk_count (session=0x7f0d5f4cd4f0, refp=0x7f0d59db3be8, walkcntp=0x7f0d59db3be0, flags=465)
at ../src/btree/bt_walk.c:541
#2 0x000000000046969e in __evict_walk_tree (session=0x7f0d5f4cd4f0, queue=0x26179c8, max_entries=400, slotp=0x7f0d59db3ce4)
at ../src/evict/evict_lru.c:1779
#3 0x0000000000467956 in __evict_walk (session=0x7f0d5f4cd4f0, queue=0x26179c8) at ../src/evict/evict_lru.c:1486
#4 0x000000000046703a in __evict_lru_walk (session=0x7f0d5f4ce870) at ../src/evict/evict_lru.c:1170
#5 0x0000000000465b17 in __evict_pass (session=0x7f0d5f4ce870) at ../src/evict/evict_lru.c:690
#6 0x0000000000465123 in __evict_server (session=0x7f0d5f4ce870, did_work=0x7f0d59db3ea7) at ../src/evict/evict_lru.c:376
#7 0x0000000000464d4c in __wt_evict_thread_run (session=0x7f0d5f4ce870, thread=0x2650740) at ../src/evict/evict_lru.c:288
#8 0x00000000004f11b3 in __thread_run (arg=0x2650740) at ../src/support/thread_group.c:31
#9 0x00007f0d5eac2dc5 in start_thread () from /lib64/libpthread.so.0
#10 0x00007f0d5e1c9c9d in clone () from /lib64/libc.so.6
(gdb) p pindex
$1 = (WT_PAGE_INDEX *) 0x0
- is caused by
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- Closed
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