7.2.1 backend crash (convert_string_datum, locale)
От | Mats Lofkvist |
---|---|
Тема | 7.2.1 backend crash (convert_string_datum, locale) |
Дата | |
Msg-id | y2q8z4ijnav.fsf@algonet.se обсуждение исходный текст |
Ответы |
Re: 7.2.1 backend crash (convert_string_datum, locale)
(Tom Lane <tgl@sss.pgh.pa.us>)
|
Список | pgsql-bugs |
Hi, When testing postgres 7.2.1 on a sparc/solaris8 box with --enable-locale --enable-multibyte I get a crash in convert_string_datum. The backend just dies when doing an select. With casserts and debug configured in I got the following in the log: NOTICE: AllocSetFree: detected write past chunk end in TransactionCommandContex t 4b7c18 NOTICE: AllocSetFree: detected write past chunk end in TransactionCommandContex t 4b7c18 NOTICE: AllocSetFree: detected write past chunk end in TransactionCommandContex t 4b7c18 NOTICE: AllocSetFree: detected write past chunk end in TransactionCommandContex t 4b7c18 NOTICE: AllocSetFree: detected write past chunk end in TransactionCommandContex t 4b7c18 NOTICE: AllocSetFree: detected write past chunk end in TransactionCommandContex t 4b7818 Gdb on the crashing backend says: Program received signal SIGSEGV, Segmentation fault. 0x269bd0 in pfree (pointer=0x4b7878) at mcxt.c:446 446 AssertArg(MemoryContextIsValid(header->context)); (gdb) where #0 0x269bd0 in pfree (pointer=0x4b7878) at mcxt.c:446 #1 0x21844c in convert_string_datum (value=5251848, typid=1043) at selfuncs.c:2059 #2 0x217978 in convert_to_scalar (value=4947304, valuetypid=1043, scaledvalue=0xffbee0b8, lobound=5251848, hibound=4946632, boundstypid=1043, scaledlobound=0xffbee0a8, scaledhibound=0xffbee0b0) at selfuncs.c:1763 #3 0x214f8c in scalarineqsel (root=0x4aebe8, operator=1066, isgt=0 '\000', var=0x4b6218, other=0x4b76d8) at selfuncs.c:584 #4 0x21541c in scalarltsel (fcinfo=0xffbee258) at selfuncs.c:733 #5 0x25aa90 in DirectFunctionCall4 (func=0x215304 <scalarltsel>, arg1=4910056, arg2=1066, arg3=4947368, arg4=0) at fmgr.c:725 #6 0x2199f0 in prefix_selectivity (root=0x4aebe8, var=0x4b6218, prefix=0x4b7ce8 "SY") at selfuncs.c:2667 #7 0x215854 in patternsel (fcinfo=0xffbee518, ptype=Pattern_Type_Like) at selfuncs.c:872 #8 0x215a18 in likesel (fcinfo=0xffbee518) at selfuncs.c:913 #9 0x25c5e4 in OidFunctionCall4 (functionId=1819, arg1=4910056, arg2=1213, arg3=4941064, arg4=1) at fmgr.c:1218 #10 0x185128 in restriction_selectivity (root=0x4aebe8, operator=1213, args=0x4b6508, varRelid=1) at plancat.c:232 #11 0x167530 in clauselist_selectivity (root=0x4aebe8, clauses=0x4b7678, varRelid=1) at clausesel.c:156 #12 0x167394 in restrictlist_selectivity (root=0x4aebe8, restrictinfo_list=0x4b6958, varRelid=1) at clausesel.c:74 #13 0x16a044 in set_baserel_size_estimates (root=0x4aebe8, rel=0x4b6af8) at costsize.c:1146 #14 0x166ae0 in set_plain_rel_pathlist (root=0x4aebe8, rel=0x4b6af8, rte=0x4aec78) at allpaths.c:132 #15 0x166aa4 in set_base_rel_pathlists (root=0x4aebe8) at allpaths.c:115 #16 0x1667ec in make_one_rel (root=0x4aebe8) at allpaths.c:62 #17 0x177708 in subplanner (root=0x4aebe8, flat_tlist=0x4b6a18, tuple_fraction=0) at planmain.c:238 #18 0x177544 in query_planner (root=0x4aebe8, tlist=0x4b5ed8, tuple_fraction=0) at planmain.c:126 #19 0x17939c in grouping_planner (parse=0x4aebe8, tuple_fraction=0) at planner.c:1094 #20 0x177d70 in subquery_planner (parse=0x4aebe8, tuple_fraction=-1) at planner.c:228 #21 0x177a2c in planner (parse=0x4aebe8) at planner.c:94 #22 0x1c821c in pg_plan_query (querytree=0x4aebe8) at postgres.c:513 #23 0x1c871c in pg_exec_query_string ( query_string=0x4ae278 "SELECT find0.userId AS userId, find0.longValue AS findLongValue0 FROM userData find0 WHERE find0.groupName='user'AND find0.attributeName LIKE 'login%' AND find0.value LIKE 'SY%'", dest=Remote, parse_context=0x464598) at postgres.c:784 #24 0x1ca63c in PostgresMain (argc=4, argv=0xffbef018, username=0x4607e1 "mats") at postgres.c:1926 #25 0x18bab0 in DoBackend (port=0x4606b0) at postmaster.c:2243 #26 0x18af48 in BackendStartup (port=0x4606b0) at postmaster.c:1874 #27 0x189548 in ServerLoop () at postmaster.c:995 #28 0x188d18 in PostmasterMain (argc=1, argv=0x447db0) at postmaster.c:771 #29 0x143ebc in main (argc=1, argv=0xffbefacc) at main.c:206 (gdb) up #1 0x21844c in convert_string_datum (value=5251848, typid=1043) at selfuncs.c:2059 2059 pfree(val); (gdb) print val $1 = 0x4b7878 "D1BFD67F71192ECE" (gdb) print xfrmstr $2 = 0x4b78d8 "\001R\0014\001P\001T\001R\0019\001:\001T\001:\0014\0014\001<\0015\001S\001Q\001S\001\001\001S\001Q\001S\0015\001<\0014\0014\001:\001T\001:\0019\001R\001T\001P\0014\001R\001\001\001R\0014\001P\001T\001R\0019\001:\001T\001:\0014\0014\001<\0015\001S\001Q\001S\001\001" (gdb) print xfrmsize $3 = 48 (gdb) print xfrmlen $4 = 102 (gdb) print *(varattrib *)(value) $5 = {va_header = 20, va_content = {va_compressed = {va_rawsize = 1144078918, va_data = "D"}, va_external = {va_rawsize = 1144078918, va_extsize = 1144403782, va_valueid = 925970745, va_toastrelid = 843400005}, va_data = "D"}} (gdb) print (char *)((varattrib *)(value))->va_content.va_data $6 = 0x50230c "D1BFD67F71192ECE~", '\177' <repeats 183 times>... (gdb) list 2054 /* Oops, didn't make it */ 2055 pfree(xfrmstr); 2056 xfrmstr = (char *) palloc(xfrmlen + 1); 2057 xfrmlen = strxfrm(xfrmstr, val, xfrmlen + 1); 2058 } 2059 pfree(val); 2060 val = xfrmstr; 2061 #endif 2062 2063 return (unsigned char *) val; (gdb) down #0 0x269bd0 in pfree (pointer=0x4b7878) at mcxt.c:446 446 AssertArg(MemoryContextIsValid(header->context)); (gdb) print header $7 = (StandardChunkHeader *) 0x4b7868 (gdb) print *header $8 = {context = 0x15246b8, size = 32, requested_size = 17} (gdb) Please let me know if there is more info I can get out of gdb to track this down. _ Mats Lofkvist mal@algonet.se
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