Failed test cases:
    dev/fss/t_fss:basic, kernel/kqueue/t_ioctl:kfilter_byfilter,
    kernel/kqueue/t_ioctl:kfilter_byname,
    kernel/kqueue/t_sig:sig, kernel/t_ptrace_wait4:fork1,
    kernel/t_ptrace_wait6:fork1, kernel/t_ptrace_waitid:fork1,
    kernel/t_ptrace_waitpid:fork1, kernel/t_umount:umount,
    kernel/t_umountstress:fileop, kernel/t_umountstress:mountlist,
    lib/libc/gen/t_floatunditf:floatunditf,
    lib/libc/gen/t_siginfo:sigbus_adraln,
    lib/libc/gen/t_siginfo:sigfpe_flt,
    lib/libc/gen/t_siginfo:sigfpe_int,
    lib/libc/sys/t_clock_nanosleep:clock_nanosleep_remain,
    lib/libc/sys/t_recvmmsg:recvmmsg_basic,
    lib/libc/sys/t_setrlimit:setrlimit_perm,
    lib/libc/sys/t_write:write_err,
    lib/libc/tls/t_tls_dynamic:t_tls_dynamic,
    lib/libevent/t_event:kqueue, lib/libevent/t_event:poll,
    lib/libevent/t_event:select, lib/libm/t_acos:acos_inrange,
    lib/libm/t_cbrt:cbrtl_inf_neg, lib/libm/t_cbrt:cbrtl_inf_pos,
    lib/libm/t_ceil:ceill_inf_neg, lib/libm/t_ceil:ceill_inf_pos,
    lib/libm/t_ceil:floorl_inf_neg, lib/libm/t_ceil:floorl_inf_pos,
    lib/libm/t_ceil:truncl_inf_neg, lib/libm/t_ceil:truncl_inf_pos,
    lib/libm/t_exp:exp2_powers, lib/libm/t_fenv:feenableexcept,
    lib/libm/t_fenv:fegetexcept, lib/libm/t_fenv:fegetround,
    lib/libm/t_fenv:fesetround, lib/libm/t_ilogb:ilogb,
    lib/libm/t_infinity:infinity_long_double,
    lib/libm/t_scalbn:scalbnl_inf_neg,
    lib/libm/t_scalbn:scalbnl_inf_pos, lib/libm/t_scalbn:scalbnl_val,
    lib/libm/t_sqrt:sqrtl_inf_pos, lib/libm/t_sqrt:sqrtl_powl,
    lib/libposix/posix1/t_rename:rename,
    lib/librumpclient/t_exec:threxec, lib/librumphijack/t_sh:runscript,
    lib/librumphijack/t_tcpip:http, lib/libm/t_scalbn:scalbnl_inf_pos,
    lib/libm/t_scalbn:scalbnl_val, lib/libm/t_sqrt:sqrtl_inf_pos,
    lib/libm/t_sqrt:sqrtl_powl, lib/libposix/posix1/t_rename:rename,
    lib/librumpclient/t_exec:threxec, lib/librumphijack/t_sh:runscript,
    lib/librumphijack/t_tcpip:http, net/net/t_udp:udp6_send,
    net/net/t_ipaddress:ipaddr_same_address,
    net/net/t_ipaddress:ipaddr_same_address6,
    net/net/t_mtudisc:mtudisc_basic, net/net/t_mtudisc6:mtudisc6_basic,
    net/sys/t_rfc6056:inet6, net/icmp/t_icmp_redirect:icmp_redirect,
    net/icmp/t_icmp_redirect:icmp_redirect_timeout,
    net/if/t_ifconfig:ifconfig_parameters, net/if_tun/t_tun:tun_setup,
    net/mpls/t_mpls_fw6:mplsfw6, net/mpls/t_mpls_fw6:mplsfw6_expl,
    net/mpls/t_mpls_fw64:mplsfw64_expl,
    net/mpls/t_mpls_fw64:mplsfw64_impl,
    net/route/t_change:route_change_reject2blackhole,
    net/route/t_flags:route_flags_announce,
    net/route/t_flags:route_flags_blackhole,
    net/route/t_flags:route_flags_connected,
    net/route/t_flags:route_flags_default_gateway,
    net/route/t_flags:route_flags_icmp_redirect,
    net/route/t_flags:route_flags_lo,
    net/route/t_flags:route_flags_reject,
    net/route/t_flags:route_flags_static,
    net/route/t_flags6:route_flags_announce6,
    net/route/t_flags6:route_flags_blackhole6,
    net/route/t_flags6:route_flags_connected6,
    net/route/t_flags6:route_flags_default_gateway6,
    net/route/t_flags6:route_flags_lo6,
    net/route/t_flags6:route_flags_reject6,
    net/route/t_flags6:route_flags_static6,
    sbin/gpt/t_gpt:migrate_disklabel, sbin/gpt/t_gpt:recover_backup,
    sbin/resize_ffs/t_grow:grow_16M_v0_8192,
    sbin/resize_ffs/t_grow:grow_16M_v1_16384,
    sbin/resize_ffs/t_grow:grow_16M_v2_32768,
    sbin/resize_ffs/t_shrink:shrink_24M_16M_v0_32768,
    sbin/resize_ffs/t_shrink:shrink_24M_16M_v1_65536,
    sbin/resize_ffs/t_grow_swapped:grow_16M_v0_65536,
    sbin/resize_ffs/t_grow_swapped:grow_16M_v1_4096,
    sbin/resize_ffs/t_grow_swapped:grow_16M_v2_8192,
    sbin/resize_ffs/t_shrink_swapped:shrink_24M_16M_v0_4096,
    sbin/resize_ffs/t_shrink_swapped:shrink_24M_16M_v1_8192,
    usr.bin/gdb/t_regress:pie, usr.bin/gdb/t_regress:threads,
    fs/tmpfs/t_vnd:basic, share/mk/t_prog:defaults__build_and_install