# ifconfig vtnet0 inet6 1::1 # ndp -P panic: prefix 0xfffff80011c56700 has referencing addresses cpuid = 1 time = 1591991817 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x2b/frame 0xfffffe0022d08720 vpanic() at vpanic+0x19d/frame 0xfffffe0022d08770 panic() at panic+0x43/frame 0xfffffe0022d087d0 nd6_prefix_del() at nd6_prefix_del+0x1e7/frame 0xfffffe0022d08840 nd6_ioctl() at nd6_ioctl+0x5a8/frame 0xfffffe0022d088c0 ifioctl() at ifioctl+0x574/frame 0xfffffe0022d08990 kern_ioctl() at kern_ioctl+0x295/frame 0xfffffe0022d089f0 sys_ioctl() at sys_ioctl+0x15d/frame 0xfffffe0022d08ac0 amd64_syscall() at amd64_syscall+0x2b9/frame 0xfffffe0022d08bf0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0022d08bf0 --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x80041929a, rsp = 0x7fffffffe748, rbp = 0x7fffffffec00 ---
Looking at the code handling the SIOCSPFXFLUSH_IN6 ioctl(), it's clear that it's just trying to free every nd_prefix (excepting link-local prefixes), but what's less clear to me is what this should do instead. Should this only flush prefixes learned through NDP RAs? What do we do if a non-autoconf address is assigned from such a prefix? _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
