[prev in list] [next in list] [prev in thread] [next in thread] 

List:       lartc
Subject:    [LARTC] iptables and  BUG: soft lockup detected
From:       Derek Sims <derek () interdart ! co ! uk>
Date:       2007-11-21 17:31:21
Message-ID: 47446B69.7090403 () interdart ! co ! uk
[Download RAW message or body]

Apologies if this is not relevant to this list.

I am seeing errors when loading a large iptables file

Using iptables-restore containing more than out 1000 rules reports 
errors shown below in the system log:
I am using Centos5 and have tried various processors and memory from 
Celeron 2.4 to Core2Duo and 500Mb to 2Gb

The problem appears to be related to the size of the ruleset being 
loaded - loading the full ruleset of 3000 rules takes about 30 seconds.

My questions are:

1. Should I be worried by these messages
2. Is it likely the rules are not being loaded properly
3. Is there anything I can do to get rid of the errors

Best regards,
Derek

 BUG: soft lockup detected on CPU#0!
 [<c044a05f>] softlockup_tick+0x98/0xa6
 [<c042ccd4>] update_process_times+0x39/0x5c
 [<c04176ec>] smp_apic_timer_interrupt+0x5c/0x64
 [<c04049bf>] apic_timer_interrupt+0x1f/0x24
 [<e09aa7e3>] translate_table+0x22d/0x717 [ip_tables]
 [<c0406406>] do_IRQ+0xa5/0xae
 [<e09aadbb>] do_ipt_set_ctl+0xee/0x607 [ip_tables]
 [<c0453dfd>] get_page_from_freelist+0x2a6/0x310
 [<c05b94bc>] nf_sockopt+0xac/0xda
 [<c05b950e>] nf_setsockopt+0x11/0x16
 [<c05c375f>] ip_setsockopt+0x9fe/0xa1d
 [<c047e1cb>] __d_lookup+0x98/0xdb
 [<c0475bc4>] do_lookup+0x53/0x157
 [<c04db822>] _atomic_dec_and_lock+0x2a/0x44
 [<c0482140>] mntput_no_expire+0x11/0x6a
 [<c0477e37>] __link_path_walk+0xd11/0xd33
 [<c0480a65>] touch_atime+0x60/0x8f
 [<c04049bf>] apic_timer_interrupt+0x1f/0x24
 [<c0453dfd>] get_page_from_freelist+0x2a6/0x310
 [<c0453ebe>] __alloc_pages+0x57/0x27e
 [<c045fdad>] anon_vma_prepare+0x11/0xa5
 [<c045afae>] __handle_mm_fault+0x85e/0x87b
 [<c059c57e>] sock_common_setsockopt+0x12/0x16
 [<c059b020>] sys_setsockopt+0x76/0x95
 [<c059c190>] sys_socketcall+0x15c/0x19e
 [<c0403eff>] syscall_call+0x7/0xb
 =======================



_______________________________________________
LARTC mailing list
LARTC@mailman.ds9a.nl
http://mailman.ds9a.nl/cgi-bin/mailman/listinfo/lartc
[prev in list] [next in list] [prev in thread] [next in thread]