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Add an order between UDP inpcb locks and the IPv4 multicast address

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list lock, as there has been a report that an alternative lock order
is getting introduced.  This should help ferret it out.

Reported by:	Ed Maste <emaste at phaedrus dot sandvine dot ca>
This commit is contained in:
Robert Watson 2005-08-09 13:27:50 +00:00
parent 05307345f3
commit ae018704a1
1 changed files with 2 additions and 1 deletions
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3
sys/kern/subr_witness.c
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@ -286,8 +286,9 @@ static struct witness_order_list_entry order_lists[] = {
{ "ifaddr", &lock_class_mtx_sleep },
{ NULL, NULL },
/*
* Multicast - protocol locks before interface locks.
* Multicast - protocol locks before interface locks, after UDP locks.
*/
{ "udpinp", &lock_class_mtx_sleep },
{ "in_multi_mtx", &lock_class_mtx_sleep },
{ "igmp_mtx", &lock_class_mtx_sleep },
{ "if_addr_mtx", &lock_class_mtx_sleep },