[squid-users] memory leaks

Hello,

I have serious problems with squid.

My setup is:
Debian Sarge @ Athlon 750, 512 RAM and 2 SCSI hdd's (one for cache, one
for system). Kernel is 2.4.31.

Squid Cache: Version 2.5.STABLE13
configure options: --prefix=/usr/squid-13/ --with-aufs-threads=10
--with-pthreads --enable-storeio=aufs --enable-removal-policies=heap,lru
--enable-delay-pools --disable-wccp --enable-dlmalloc
--enable-kill-parent-hack --enable-snmp
--enable-default-err-language=Lithuanian --enable-err-languages=Lithuanian
--enable-poll --enable-linux-netfilter --disable-ident-lookups
--disable-hostname-checks --enable-underscores

cache_mem 10 MB
cache_dir aufs /cache 7168 10 256

I get ~600 req/s on average. Performance is good .. no lagging etc. ...
fast response...
top shows squid is using ~ 60 MB of ram.

My box has 512 ram. It is basically a router with only squid and iptables
firewall on it.

When I start the sistem (without starting squid) only 37 MB of ram gets
used. And usage is constant, no matter how long box is up. After a week it
still has 37 Mb used and ~400 MB free.

But if I start squid and let it run, then after ~36 hours I have only 92
Mb free ... and after 7-30 days I get ether box lockup because out of
memory or squid becomes zombie and locks up. The most interesting thing
that swap usage is always remains zero or 132 Kb. Ihave no bad sector on
hard drives. I have checked everything. That irritates me ...

I have such problems since Stable 9 I think. I have been using Debian
Woody and thought that it might be gcc 2.95 that causes problems... but
now I have switched to Debian Sarge with gcc 3.3 and the same problems
exist.

After 40 hours of uptime I get:

edska@gw:~$ free
             total used free shared buffers cached
Mem: 516312 510772 5540 0 51976 48876
-/+ buffers/cache: 409920 106392
Swap: 248968 0 248968

root 17386 0.0 0.2 4136 1160 ? Ss 10:43 0:00
/usr/squid-13/sbin/squid
squid 31627 2.1 8.9 68640 46044 ? S 10:43 0:29 \_ (squid)
squid 2352 0.0 0.0 1336 280 ? Ss 10:43 0:00 \_
(unlinkd)
squid 17672 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 1721 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 10627 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 32141 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 15300 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 29018 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 5266 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 7231 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 20412 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 17492 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)
squid 23770 0.0 8.9 68640 46044 ? S 10:43 0:00 \_
(squid)

Can somebody help me ?

Last time squid died with something like this in the logs:
May 14 23:41:09 gw kernel: Unable to handle kernel paging request at
virtual address 30303098
May 14 23:41:09 gw kernel: printing eip:
May 14 23:41:09 gw kernel: c01b0880
May 14 23:41:09 gw kernel: *pgd = 0000000000000000
May 14 23:41:09 gw kernel: *pmd = 0000000000000000
May 14 23:41:09 gw kernel: Oops: 0000
May 14 23:41:09 gw kernel: CPU: 0
May 14 23:41:09 gw kernel: EIP:
0010:[reiserfs_update_inode_transaction+16/48] Not tainted
May 14 23:41:09 gw kernel: EFLAGS: 00010217
May 14 23:41:09 gw kernel: eax: 30303030 ebx: fffffffe ecx: df85fc00
edx: dea43d40
May 14 23:41:09 gw kernel: esi: dca72500 edi: dea43d40 ebp: c8eabea0
esp: c8eabe78
May 14 23:41:09 gw kernel: ds: 0018 es: 0018 ss: 0018
May 14 23:41:09 gw kernel: Process squid (pid: 24378, stackpage=c8eab000)
May 14 23:41:09 gw kernel: Stack: c0194b09 dea43d40 c5c5761c 00000008
c8eabec0 c8eabf00 c8eabf9c 00000020
May 14 23:41:09 gw kernel: c8eabfc0 00000000 c026bc5b 00000000
00000026 0029537d df87fc00 00000020
May 14 23:41:09 gw kernel: 00005a0f 00000282 00000004 00000000
00000000 00000000 00000000 df4ffe40
May 14 23:41:09 gw kernel: Call Trace: [reiserfs_unlink+169/608]
[generic_fs_handler+62/208] [vfs_unlink+189/400] [sys_unlink+251/384]
[system_call+51/64]
May 14 23:41:09 gw kernel:
May 14 23:41:09 gw kernel: Code: 8b 40 68 89 82 54 01 00 00 8b 81 f8 00 00
00 8b 40 20 89 82
Received on Tue May 16 2006 - 03:13:01 MDT