It looks like the prefix length has gone wrong. @keithbostic, can you please take a look?
http://build.wiredtiger.com:8080/job/wiredtiger-linux-directio/3128/
There is a tarball of the build_posix tree at tinderbox:~jenkins/workspace/wiredtiger-linux-directio/build_posix.3128.tar.gz.
(gdb) where #0 _mm_loadu_si128 (__P=0x7fd600795ff4) at /usr/lib/gcc/x86_64-redhat-linux/4.8.3/include/emmintrin.h:684 WT-1 __wt_lex_compare_skip (user_item=0x7fd6000b82e8, user_item=0x7fd6000b82e8, tree_item=0x7fd6000b8430, tree_item=0x7fd6000b8430, matchp=<synthetic pointer>) at ../src/include/btree_cmp.i:153 WT-2 __wt_row_search (session=session@entry=0x1cf47f0, srch_key=srch_key@entry=0x7fd6000b82e8, leaf=0x2452c60, cbt=cbt@entry=0x7fd6000b8210, insert=insert@entry=1) at ../src/btree/row_srch.c:371 WT-3 0x00000000004d6a79 in __cursor_row_search (insert=1, leaf=<optimized out>, cbt=0x7fd6000b8210, session=0x1cf47f0) at ../src/btree/bt_cursor.c:241 WT-4 __wt_btcur_search_near (cbt=cbt@entry=0x7fd6000b8210, exactp=exactp@entry=0x7fd61eb17b20) at ../src/btree/bt_cursor.c:399 WT-5 0x000000000049e6aa in __curfile_search_near (cursor=0x7fd6000b8210, exact=0x7fd61eb17b20) at ../src/cursor/cur_file.c:222 WT-6 0x00000000004af16b in __clsm_next (cursor=0x7fd60031ce10) at ../src/lsm/lsm_cursor.c:799 (gdb) f 1 WT-1 __wt_lex_compare_skip (user_item=0x7fd6000b82e8, user_item=0x7fd6000b82e8, tree_item=0x7fd6000b8430, tree_item=0x7fd6000b8430, matchp=<synthetic pointer>) at ../src/include/btree_cmp.i:153 153 u = _mm_loadu_si128((__m128i *)userp); (gdb) list 148 else 149 for (; len > 0; 150 len -= WT_VECTOR_SIZE, 151 userp += WT_VECTOR_SIZE, treep += WT_VECTOR_SIZE, 152 *matchp += WT_VECTOR_SIZE) { 153 u = _mm_loadu_si128((__m128i *)userp); 154 t = _mm_loadu_si128((__m128i *)treep); 155 res_eq = _mm_cmpeq_epi8(u, t); 156 if (_mm_movemask_epi8(res_eq) != 65535) 157 break; (gdb) print usz $1 = 22 (gdb) print tsz $2 = 19 (gdb) print *matchp $3 = 2341604 (gdb) print userp - user_item->data $4 = 2341604 (gdb) print len $10 = 18446744073707210016
- is depended on by
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SERVER-18199 WiredTiger changes for MongoDB 3.1.2
- Closed
- is related to
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WT-1889 Defend against row-search calls using a returned key
- Closed
- related to
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WT-1 placeholder WT-1
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WT-2 What does metadata look like?
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WT-3 What file formats are required?
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WT-4 Flexible cursor traversals
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WT-5 How does pget work: is it necessary?
- Closed
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WT-6 Complex schema example
- Closed