From: Derek Sims <derek@interdart.co.uk>
To: lartc@vger.kernel.org
Subject: [LARTC] iptables and BUG: soft lockup detected
Date: Wed, 21 Nov 2007 17:31:21 +0000 [thread overview]
Message-ID: <47446B69.7090403@interdart.co.uk> (raw)
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
===========
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reply other threads:[~2007-11-21 17:31 UTC|newest]
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