panic: pool_do_get: rttmr free list modified: page 0xfffffd8073d9b000; item addr 0xfffffd8073d9bef0; offset 0x20=0x838977e0
Starting stack trace...
panic(ffffffff833a37ed) at panic+0x1ba sys/kern/subr_prf.c:229
pool_do_get(ffffffff83976ef0,a,ffff80002a873018) at pool_do_get+0x5c7 sys/kern/subr_pool.c:-1
pool_get(ffffffff83976ef0,a) at pool_get+0x103 sys/kern/subr_pool.c:-1
rt_timer_add(fffffd80693e82b0,ffffffff8389d988,0) at rt_timer_add+0x4e sys/net/route.c:-1
mf6c_add_route(ffff800000b12800,640,ffff80002a873168,ffff80002a873238,1) at mf6c_add_route+0xad sys/netinet6/ip6_mroute.c:730
mf6c_update(ffff80002a873238,1,0) at mf6c_update+0x75e sys/netinet6/ip6_mroute.c:835
add_m6fc(ffff800010fda010,fffffd805d45f620) at add_m6fc+0x2e4 mf6c_add sys/netinet6/ip6_mroute.c:862 [inline]
add_m6fc(ffff800010fda010,fffffd805d45f620) at add_m6fc+0x2e4 sys/netinet6/ip6_mroute.c:875
sosetopt(ffff800010fda010,29,68,fffffd805d45f600) at sosetopt+0x11b sys/kern/uipc_socket.c:-1
sys_setsockopt(ffff80002a90f748,ffff80002a873490,ffff80002a8733e0) at sys_setsockopt+0x2b9 sys/kern/uipc_syscalls.c:1221
syscall(ffff80002a873490) at syscall+0x97e mi_syscall sys/sys/syscall_mi.h:-1 [inline]
syscall(ffff80002a873490) at syscall+0x97e sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xd73cfdfd180, count: 246
End of stack trace.