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 =======================