postgresql9.1.6 core dump

Hello.

I'm having problems postgesql coredump.
Do you have any idea?.

OS:Scientific Linux release 6.1
DB:postgresql91-9.1.6
MEM:4G

(gdb) bt full
#0 SearchCatCacheList (cache=0x1d70440, nkeys=1, v1=<value optimized out>,
v2=<value optimized out>, v3=<value optimized out>, v4=<value optimized
out>)
at catcache.c:1450
hashValue = 1943050110
hashIndex = 1918
relation = 0x7f6983ede610
scandesc = 0x1db11e0
save_exception_stack = 0x7fffc61a1bd0
save_context_stack = 0x0
local_sigjmp_buf = {{__jmpbuf = {140736516985344,
-1013623458724204964,
31134224, 140736516986976, 0, 1, 1013713306157690460,
-1013624314715328932}, __mask_was_saved = 0, __saved_mask =
{__val = {
31148304, 0, 6365529, 2262149739, 31148304, 31148304,
140091178270512,
44, 6370319, 140736516985856, 6437365, 0, 4963415, 1,
13593016,
8070450532247928832}}}}
cur_skey = {{sk_flags = 0, sk_attno = 1, sk_strategy = 3,
sk_subtype = 0,
sk_collation = 0, sk_func = {fn_addr = 0x67c230 <nameeq>,
fn_oid = 62,
fn_nargs = 2, fn_strict = 1 '\001', fn_retset = 0 '\000',
fn_stats = 2 '\002', fn_extra = 0x0, fn_mcxt = 0x1d2d840,
fn_expr = 0x0},
sk_argument = 30378016}, {sk_flags = 0, sk_attno = 17,
sk_strategy = 3,
sk_subtype = 0, sk_collation = 0, sk_func = {
fn_addr = 0x684800 <oidvectoreq>, fn_oid = 679, fn_nargs = 2,
fn_strict = 1 '\001', fn_retset = 0 '\000', fn_stats = 2
'\002',
fn_extra = 0x0, fn_mcxt = 0x1d2d840, fn_expr = 0x0},
sk_argument = 0}, {
sk_flags = 0, sk_attno = 2, sk_strategy = 3, sk_subtype = 0,
sk_collation = 0, sk_func = {fn_addr = 0x6846e0 <oideq>, fn_oid
= 184,
fn_nargs = 2, fn_strict = 1 '\001', fn_retset = 0 '\000',
fn_stats = 2 '\002', fn_extra = 0x0, fn_mcxt = 0x1d2d840,
fn_expr = 0x0},
sk_argument = 0}, {sk_flags = 0, sk_attno = 0, sk_strategy = 0,
sk_subtype = 0, sk_collation = 0, sk_func = {fn_addr = 0,
fn_oid = 0,
fn_nargs = 0, fn_strict = 0 '\000', fn_retset = 0 '\000',
fn_stats = 0 '\000', fn_extra = 0x0, fn_mcxt = 0x0, fn_expr =
0x0},
sk_argument = 0}}
lHashValue = 2904526133
elt = 0xff
cl = <value optimized out>
ct = <value optimized out>
ctlist = 0x0
ctlist_item = <value optimized out>
nmembers = <value optimized out>
ordered = 1 '\001'
ntp = 0x1cf91d0
oldcxt = <value optimized out>
i = <value optimized out>
#1 0x00000000004beb64 in FuncnameGetCandidates (names=<value optimized
out>, nargs=1,
argnames=0x0, expand_variadic=1 '\001', expand_defaults=1 '\001') at
namespace.c:714
resultList = 0x0
any_special = 0 '\000'
schemaname = 0x0
funcname = 0x1cf8820 "count"
namespaceId = 0
catlist = <value optimized out>
i = <value optimized out>
#2 0x00000000004f9e10 in func_get_detail (funcname=0x1cf87b0,
fargs=0x1db1140,
fargnames=0x0, nargs=1, argtypes=0x7fffc61a16c0, expand_variadic=1
'\001',
expand_defaults=1 '\001', funcid=0x7fffc61a1874, rettype=0x7fffc61a1878,
retset=0x7fffc61a187f "", nvargs=0x7fffc61a1870,
true_typeids=0x7fffc61a1868,
argdefaults=0x7fffc61a1860) at parse_func.c:950
raw_candidates = <value optimized out>
best_candidate = <value optimized out>
__func__ = "func_get_detail"
#3 0x00000000004fa612 in ParseFuncOrColumn (pstate=0x1cf8e10,
funcname=0x1cf87b0,
fargs=0x1db1140, agg_order=0x0, agg_star=0 '\000', agg_distinct=0
'\000',
func_variadic=0 '\000', over=0x0, is_column=0 '\000', location=13)
at parse_func.c:212
rettype = <value optimized out>
funcid = <value optimized out>
l = <value optimized out>
nextl = <value optimized out>
first_arg = 0x1db1210
nargs = <value optimized out>
nargsplusdefs = <value optimized out>
actual_arg_types = {23, 0, 0, 0, 0, 0, 7392693, 0, 0, 0, 1, 0, 2,
0, 5941475, 0,
0, 0, 19, 0, 2, 0, 30380112, 0, 1, 0, 30379536, 0, 19, 0,
30380112, 0,
30379536, 0, 5245868, 0, 0, 0, 31131992, 0, 31131992, 0, 2, 0,
30380112, 0,
5246540, 0, 7, 0, 7393125, 0, 31134224, 0, 31134224, 0, 0, 0,
31133888, 0, 0,
0, 30379536, 0, 19, 0, 0, 0, 30378280, 0, 5246937, 0, 31132080,
0, 3, 0,
30379536, 0, 5246540, 0, 0, 0, 30378120, 0, 0, 0, 30379536, 0,
30378088, 0,
30378280, 0, 30377096, 0, 5206771, 0, 7, 0, 31134304, 0}
declared_arg_types = <value optimized out>
argnames = <value optimized out>
argdefaults = <value optimized out>
retval = 0x1cf91d4
retset = <value optimized out>
nvargs = <value optimized out>
fdresult = <value optimized out>
__func__ = "ParseFuncOrColumn"
#4 0x00000000004f6a3f in transformFuncCall (pstate=0x1cf8e10,
expr=0x1cf8760)
at parse_expr.c:1242
targs = <value optimized out>
args = <value optimized out>
#5 transformExpr (pstate=0x1cf8e10, expr=0x1cf8760) at parse_expr.c:238
result = 0x0
__func__ = "transformExpr"
#6 0x0000000000502806 in transformTargetEntry (pstate=0x1cf8e10,
node=0x1cf8760,
expr=0x0, colname=<value optimized out>, resjunk=<value optimized out>)
at parse_target.c:91
No locals.
#7 0x00000000005034b5 in transformTargetList (pstate=0x1cf8e10,
targetlist=<value optimized out>) at parse_target.c:162
res = <value optimized out>
p_target = <value optimized out>
o_target = 0x1cf86f0
#8 0x00000000004d702c in transformSelectStmt (pstate=0x1cf8e10,
parseTree=0x1cf8488)
at analyze.c:900
qry = 0x1cf8f40
qual = <value optimized out>
l = <value optimized out>
#9 transformStmt (pstate=0x1cf8e10, parseTree=0x1cf8488) at analyze.c:187
n = 0x1cf8488
result = <value optimized out>
#10 0x00000000004d8250 in parse_analyze_varparams (parseTree=0x1cf8488,
sourceText=0x1da80a1 "SELECT PATH, COUNT(SITE_ID) FROM ACCESS_LOG_05
WHERE SITE_ID = $1 GROUP BY PATH ORDER BY PATH", paramTypes=0x7fffc61a1aa8,
numParams=0x7fffc61a1aa4)
at analyze.c:122
pstate = 0x1cf8e10
query = <value optimized out>
#11 0x00000000006339fd in exec_parse_message (
query_string=0x1da80a1 "SELECT PATH, COUNT(SITE_ID) FROM ACCESS_LOG_05
WHERE SITE_ID = $1 GROUP BY PATH ORDER BY PATH", stmt_name=0x1da80a0 "",
paramTypes=0x1da88c0,
numParams=1) at postgres.c:1254
query = <value optimized out>
snapshot_set = 1 '\001'
i = <value optimized out>
oldcontext = 0x1d2e500
parsetree_list = <value optimized out>
raw_parse_tree = 0x1cf81d0
commandTag = 0x826012 "SELECT"
querytree_list = <value optimized out>
stmt_list = <value optimized out>
is_named = 0 '\000'
fully_planned = <value optimized out>
save_log_statement_stats = 0 '\000'
msec_str = "]\000\000\000\000\000\000\000\241\200\332\001", '\000'
<repeats 12 times>, "T\204Y\000\000\000\000"
__func__ = "exec_parse_message"
#12 0x000000000063456c in PostgresMain (argc=<value optimized out>,
argv=<value optimized out>, username=<value optimized out>) at
postgres.c:3997
stmt_name = <value optimized out>
query_string = 0x1da80a1 "SELECT PATH, COUNT(SITE_ID) FROM
ACCESS_LOG_05 WHERE SITE_ID = $1 GROUP BY PATH ORDER BY PATH"
numParams = 1
paramTypes = 0x1da88c0
dbname = <value optimized out>
firstchar = <value optimized out>
input_message = {data = 0x1da80a0 "", len = 101, maxlen = 1024,
cursor = 101}
local_sigjmp_buf = {{__jmpbuf = {140736516988064,
-1013625157805298084, 2, 2,
-9187201950435737471, 0, 1013713306348531292,
-1013624294113694116},
__mask_was_saved = 1, __saved_mask = {__val = {0, 0, 65280, 0,
0,
18446744073709486080, 18446744073709551615,
18446744073709551615,
18374967954648334335, 0, 0, 0, 0, 0, 0, 0}}}}
send_ready_for_query = 0 '\000'
__func__ = "PostgresMain"
#13 0x00000000005f54c9 in BackendRun () at postmaster.c:3617
ac = 2
secs = 434261935
usecs = 398782
i = <value optimized out>
av = 0x1cd9428
maxac = <value optimized out>
#14 BackendStartup () at postmaster.c:3302
bn = 0x1cfd2e0
pid = 0
#15 ServerLoop () at postmaster.c:1466
rmask = {fds_bits = {8, 0 <repeats 15 times>}}
selres = <value optimized out>
readmask = {fds_bits = {56, 0 <repeats 15 times>}}
nSockets = 6
now = <value optimized out>
last_touch_time = 1380944820
__func__ = "ServerLoop"
#16 0x00000000005f7c71 in PostmasterMain (argc=<value optimized out>,
argv=<value optimized out>) at postmaster.c:1127
opt = <value optimized out>
status = <value optimized out>
userDoption = <value optimized out>
listen_addr_saved = 1 '\001'
i = <value optimized out>
__func__ = "PostmasterMain"
#17 0x0000000000599520 in main (argc=7, argv=0x1cd6100) at main.c:199
No locals.