Squid падает в корки.

Запускаю сквид. Никаких сообщений в лога о том, что что-то не в порядке и т.п.....
Через некоторое время при просмотре страниц начинает выдавать страница не найдена, потом отображает. При этом coredump директория заполняется....
Делаю gdb squid squid.core, выдает
This GDB was configured as "i386-redhat-linux-gnu"...
Using host libthread_db library "/lib/libthread_db.so.1".
warning: Can't read pathname for load map: Input/output error.
warning: .dynamic section for "/lib/libcrypt.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libm.so.6" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libnsl.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libc.so.6" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libdl.so.2" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/ld-linux.so.2" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libresolv.so.2" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
warning: .dynamic section for "/lib/libgcc_s.so.1" is not at the expected address
warning: difference appears to be caused by prelink, adjusting expectations
Reading symbols from /lib/libcrypt.so.1...done.
Loaded symbols for /lib/libcrypt.so.1
Reading symbols from /usr/local/ssl/lib/libssl.so.0.9.8...done.
Loaded symbols for /usr/local/ssl/lib/libssl.so.0.9.8
Reading symbols from /usr/local/ssl/lib/libcrypto.so.0.9.8...done.
Loaded symbols for /usr/local/ssl/lib/libcrypto.so.0.9.8
Reading symbols from /lib/libm.so.6...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/libnsl.so.1...done.
Loaded symbols for /lib/libnsl.so.1
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libdl.so.2...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /lib/libnss_files.so.2...done.
Loaded symbols for /lib/libnss_files.so.2
Reading symbols from /lib/libnss_dns.so.2...done.
Loaded symbols for /lib/libnss_dns.so.2
Reading symbols from /lib/libresolv.so.2...done.
Loaded symbols for /lib/libresolv.so.2
Reading symbols from /lib/libgcc_s.so.1...done.
Loaded symbols for /lib/libgcc_s.so.1
Core was generated by `(squid)'.
Program terminated with signal 6, Aborted.
#0  0xb7f99410 in __kernel_vsyscall ()
делаю bt
(gdb) bt
#0  0xb7f99410 in __kernel_vsyscall ()
#1  0x4e652fa0 in raise () from /lib/libc.so.6
#2  0x4e6548b1 in abort () from /lib/libc.so.6
#3  0x4e689ebb in __libc_message () from /lib/libc.so.6
#4  0x4e6926d3 in _int_malloc () from /lib/libc.so.6
#5  0x4e693d1d in calloc () from /lib/libc.so.6
#6  0x080d3b5c in xcalloc (n=1, sz=20) at util.c:561
#7  0x0809cd8f in memPoolAlloc (pool=0x8223718) at MemPool.c:295
#8  0x08050011 in aclMatchAclList (list=0x8228128, checklist=0x9987c80)
    at acl.c:1442
#9  0x08050076 in aclCheck (checklist=0x9987c80) at acl.c:2154
#10 0x080ce420 in authenticateDigestHandleReply (data=0x998bd18,
    reply=0x826ad68 "246d8b75ae19e37868d5a25a52a9cafc")
    at digest/auth_digest.c:923
#11 0x0808886c in helperHandleRead (fd=27, data=0x826ad10) at helper.c:769
#12 0x08071e49 in comm_select (msec=236) at comm_generic.c:264
#13 0x0809b1e8 in main (argc=1, argv=0xbfd34824) at main.c:837
Что не так? Заранее благодарен за ответы.