make -C tools/testing/selftests TARGETS="net" TEST_PROGS=tcp_fastopen_backkup_key.sh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-3/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make[1]: Entering directory '/home/virtme/testing-3/tools/testing/selftests/net'
TAP version 13
1..1
# overriding timeout to 7200
# selftests: net: tcp_fastopen_backup_key.sh
# 17.79 [+17.79] PASS
# 35.45 [+17.66] PASS
# 54.04 [+18.59] PASS
# 71.69 [+17.65] PASS
# 89.21 [+17.52] PASS
# 107.61 [+18.40] PASS
# 125.90 [+18.29] PASS
# 144.48 [+18.57] PASS
# 161.60 [+17.12] PASS
# 179.55 [+17.95] PASS
# 197.58 [+18.03] PASS
# 215.19 [+17.60] PASS
# 232.65 [+17.47] PASS
# 251.03 [+18.38] PASS
# 268.83 [+17.79] PASS
# 286.72 [+17.89] PASS
# 286.93 [+0.21] all tests done
ok 1 selftests: net: tcp_fastopen_backup_key.sh
make[1]: Leaving directory '/home/virtme/testing-3/tools/testing/selftests/net'
make: Leaving directory '/home/virtme/testing-3/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0x00042d20 (size 64):
  comm "swapper/0", pid 0, jiffies 4294667296
  hex dump (first 32 bytes on cpu 0):
    00 00 00 00 00 00 00 00 00 00 06 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 0):
    pcpu_alloc_noprof+0x4ad/0xab0
    setup_zone_pageset+0x30/0x290
    setup_per_cpu_pageset+0x6a/0x1f0
    start_kernel+0x2a4/0x410
    x86_64_start_reservations+0x18/0x30
    x86_64_start_kernel+0xba/0x110
    common_startup_64+0x12c/0x138

DETECTED CRASH, lowering timeout
xx__->