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runs on boot and each time a vnet jail is created. Running cc_init() multiple times results in a panic when attempting to initialise the cc_list lock again, and so r215166 effectively broke the use of vnet jails. Switch to using a SYSINIT to run cc_init() on boot. CC algorithm modules loaded on boot register in the same SI_SUB_PROTO_IFATTACHDOMAIN category as is used in this patch, so cc_init() is run at SI_ORDER_FIRST to ensure the framework is initialised before module registration is attempted. Sponsored by: FreeBSD Foundation Reported and tested by: Mikolaj Golub <to.my.trociny at gmail com> MFC after: 11 weeks X-MFC with: r215166
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