make -C tools/testing/selftests TARGETS="net/packetdrill" TEST_PROGS=tcp_ffast_recovery_prr-ss-10pkt-lost-1.pkt TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing/wt-8/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing/wt-8/tools/testing/selftests/net/packetdrill'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing/wt-8/tools/testing/selftests/net/packetdrill'
make[1]: Entering directory '/home/virtme/testing/wt-8/tools/testing/selftests/net/packetdrill'
TAP version 13
1..1
# overriding timeout to 90
# selftests: net/packetdrill: tcp_fast_recovery_prr-ss-10pkt-lost-1.pkt
# TAP version 13
# 1..2
# ok 1 ipv4
# ok 2 ipv6
# # Totals: pass:2 fail:0 xfail:0 xpass:0 skip:0 error:0
ok 1 selftests: net/packetdrill: tcp_fast_recovery_prr-ss-10pkt-lost-1.pkt
make[1]: Leaving directory '/home/virtme/testing/wt-8/tools/testing/selftests/net/packetdrill'
make: Leaving directory '/home/virtme/testing/wt-8/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff8880053be740 (size 64):
  comm "ifconfig", pid 262, jiffies 4294687053
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 0):
    __kmalloc_noprof+0x32b/0x460
    udpv6_init_sock+0x237/0x410
    inet6_create.part.0+0x989/0x10b0
    __sock_create+0x235/0x690
    __sys_socket+0x116/0x1d0
    __x64_sys_socket+0x72/0xb0
    do_syscall_64+0xc1/0x300
    entry_SYSCALL_64_after_hwframe+0x4b/0x53
unreferenced object 0xffff8880053be840 (size 64):
  comm "packetdrill", pid 261, jiffies 4294687063
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 0):
    __kmalloc_noprof+0x32b/0x460
    udpv6_init_sock+0x237/0x410
    inet6_create.part.0+0x989/0x10b0
    __sock_create+0x235/0x690
    __sys_socket+0x116/0x1d0
    __x64_sys_socket+0x72/0xb0
    do_syscall_64+0xc1/0x300
    entry_SYSCALL_64_after_hwframe+0x4b/0x53
xx__->