Re: Soft lockup on shutdown in nf_ct_iterate_cleanup()

Chuck Ebbert wrote:
> Chuck Ebbert wrote:
> 
>>I was testing a 2.6.20 kernel and got a soft
>>lockup on shutdown:
>>
>>_raw_write_lock+0x5a
>>nf_ct_iterate_cleanup+0x3e
>>kill_l3proto+0x0
>>nf_conntrack_l3proto_unregister+0x85
>>nf_conntrack_l3proto_ipv4_fini+0x1e
>>sys_delete_module+0x18a
>>remove_vma+0x45
>>do_munmap+0x196
>>syscall_call+0x7
> 
> 
> Happened three times in a row, trying to remove
> netfilter modules.

Does it happen when you unload only nf_conntrack_ipv4, or do
you need to unload other modules previously? Does it really
lock up?

Please also send your config.
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Follow-Ups:
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References:
- Soft lockup on shutdown in nf_ct_iterate_cleanup()
  - From: Chuck Ebbert <[email protected]>
- Re: Soft lockup on shutdown in nf_ct_iterate_cleanup()
  - From: Chuck Ebbert <[email protected]>

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