make -C tools/testing/selftests TARGETS="drivers/net/hw" TEST_PROGS=pp_allloc_fail.py TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-25/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-25/tools/testing/selftests/drivers/net/hw'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-25/tools/testing/selftests/drivers/net/hw'
make[1]: Entering directory '/home/virtme/testing-25/tools/testing/selftests/net/lib'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-25/tools/testing/selftests/net/lib'
make[1]: Entering directory '/home/virtme/testing-25/tools/testing/selftests/drivers/net/hw'
TAP version 13
1..1
# overriding timeout to 360
# selftests: drivers/net/hw: pp_alloc_fail.py
# TAP version 13
# 1..1
# # Exception| Traceback (most recent call last):
# # Exception|   File "/home/virtme/testing-25/tools/testing/selftests/net/lib/py/ksft.py", line 244, in ksft_run
# # Exception|     case(*args)
# # Exception|   File "/home/virtme/testing-25/tools/testing/selftests/drivers/net/hw/./pp_alloc_fail.py", line 77, in test_pp_alloc
# # Exception|     check_traffic_flowing()
# # Exception|   File "/home/virtme/testing-25/tools/testing/selftests/drivers/net/hw/./pp_alloc_fail.py", line 59, in check_traffic_flowing
# # Exception|     raise KsftFailEx("Traffic seems low:", stat2['rx-packets'] - stat1['rx-packets'])
# # Exception| net.lib.py.ksft.KsftFailEx: ('Traffic seems low:', 5569)
# not ok 1 pp_alloc_fail.test_pp_alloc
# # Totals: pass:0 fail:1 xfail:0 xpass:0 skip:0 error:0
not ok 1 selftests: drivers/net/hw: pp_alloc_fail.py # exit=1
make[1]: Leaving directory '/home/virtme/testing-25/tools/testing/selftests/drivers/net/hw'
make: Leaving directory '/home/virtme/testing-25/tools/testing/selftests'
xx__-> echo $?
0
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
xx__-> echo scan > /sys/kernel/debug/kmemleak && cat /sys/kernel/debug/kmemleak
unreferenced object 0xffff88800851dcc0 (size 216):
  comm "iperf3", pid 6360, jiffies 4295853229
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 20 ad 07 80 88 ff ff 00 00 00 00 00 00 00 00  . ..............
  backtrace (crc 5d563716):
    kmem_cache_alloc_node_noprof+0x289/0x330
    __alloc_skb+0x20f/0x2e0
    __tcp_send_ack.part.0+0x68/0x6b0
    tcp_recvmsg_locked+0x5e2/0x20d0
    tcp_recvmsg+0xec/0x4f0
    inet6_recvmsg+0xf8/0x4e0
    sock_read_iter+0x2a6/0x440
    vfs_read+0x9a2/0xcd0
    ksys_read+0x17f/0x1d0
    do_syscall_64+0xc1/0x370
    entry_SYSCALL_64_after_hwframe+0x4b/0x53
xx__->