make -C tools/testing/selftests TARGETS=net/forwarding TEST_PROGS=tc_actioons.sh TEST_GEN_PROGS="" run_tests
make: Entering directory '/home/virtme/testing-2/tools/testing/selftests'
make[1]: Entering directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
make[1]: Entering directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
TAP version 13
1..1
# timeout set to 10800
# selftests: net/forwarding: tc_actions.sh
# TEST: gact drop and ok (skip_hw)                                    [ OK ]
# TEST: mirred egress flower redirect (skip_hw)                       [ OK ]
# TEST: mirred egress flower mirror (skip_hw)                         [ OK ]
# TEST: mirred egress matchall mirror (skip_hw)                       [ OK ]
[ 1111.697405] tc (3367) used greatest stack depth: 11720 bytes left
[ 1113.870350] ping (3502) used greatest stack depth: 11512 bytes left
# TEST: mirred_egress_to_ingress (skip_hw)                            [ OK ]
# [ 1116.963786] 
[ 1116.963909] ============================================
[ 1116.964217] WARNING: possible recursive locking detected
[ 1116.964533] 6.8.0-rc2-virtme #1 Not tainted
[ 1116.964772] --------------------------------------------
[ 1116.965057] ncat/3641 is trying to acquire lock:
[ 1116.965322] ffff8bc685b880b0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0
[ 1116.965774] 
[ 1116.965774] but task is already holding lock:
[ 1116.966100] ffff8bc685b88cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0
[ 1116.966532] 
[ 1116.966532] other info that might help us debug this:
[ 1116.966900]  Possible unsafe locking scenario:
[ 1116.966900] 
[ 1116.967247]        CPU0
[ 1116.967389]        ----
[ 1116.967529]   lock(slock-AF_INET/1);
[ 1116.967732]   lock(slock-AF_INET/1);
[ 1116.967957] 
[ 1116.967957]  *** DEADLOCK ***
[ 1116.967957] 
[ 1116.968272]  May be due to missing lock nesting notation
[ 1116.968272] 
[ 1116.968643] 8 locks held by ncat/3641:
[ 1116.968853]  #0: ffffffffb9b678c0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x6f/0x260
[ 1116.969328]  #1: ffffffffb9b678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180
[ 1116.969931]  #2: ffff8bc685b88cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0
[ 1116.970377]  #3: ffffffffb9b678c0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x3f/0x6f0
[ 1116.970838]  #4: ffffffffb9b678c0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0xc6/0xa20
[ 1116.971454]  #5: ffffffffb9b67880 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x6e/0x1180
[ 1116.972160]  #6: ffffffffb9b678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb+0x58/0x2c0
[ 1116.972852]  #7: ffffffffb9b678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180
[ 1116.973574] 
[ 1116.973574] stack backtrace:
[ 1116.973931] CPU: 2 PID: 3641 Comm: ncat Not tainted 6.8.0-rc2-virtme #1
[ 1116.974479] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1116.975369] Call Trace:
[ 1116.975585]  <IRQ>
[ 1116.975787]  dump_stack_lvl+0x4b/0x80
[ 1116.976089]  __lock_acquire+0x1215/0x1750
[ 1116.976440]  ? sk_filter_trim_cap+0x53/0x360
[ 1116.976789]  lock_acquire+0xc1/0x2b0
[ 1116.977089]  ? tcp_v4_rcv+0xdb5/0xef0
[ 1116.977422]  ? sk_filter_trim_cap+0x11a/0x360
[ 1116.977774]  _raw_spin_lock_nested+0x2e/0x40
[ 1116.978127]  ? tcp_v4_rcv+0xdb5/0xef0
[ 1116.978451]  tcp_v4_rcv+0xdb5/0xef0
[ 1116.978739]  ip_protocol_deliver_rcu+0x4b/0x1e0
[ 1116.979105]  ip_local_deliver_finish+0xaf/0x180
[ 1116.979485]  __netif_receive_skb_one_core+0x8b/0xa0
[ 1116.979884]  netif_receive_skb+0x87/0x2c0
[ 1116.980234]  tcf_mirred_to_dev+0x1f6/0x410 [act_mirred]
[ 1116.980651]  tcf_mirred_act+0xee/0x560 [act_mirred]
[ 1116.981055]  ? tcf_skbedit_act+0x1d6/0x410 [act_skbedit]
[ 1116.981372]  tcf_action_exec+0xaf/0x230
[ 1116.981595]  fl_classify+0x20e/0x260 [cls_flower]
[ 1116.981860]  ? __pfx_usage_match+0x10/0x10
[ 1116.982136]  ? __bfs+0xf6/0x240
[ 1116.982373]  ? check_irq_usage+0x19c/0xc40
[ 1116.982697]  ? __skb_flow_dissect+0xc9/0x2d60
[ 1116.983015]  ? check_path.constprop.0+0x24/0x50
[ 1116.983387]  ? check_noncircular+0x81/0x150
[ 1116.983678]  ? __skb_flow_dissect+0x2fb/0x2d60
[ 1116.984028]  ? __lock_acquire+0xa6e/0x1750
[ 1116.984381]  tcf_classify+0x17d/0x540
[ 1116.984688]  tc_run+0x9f/0x150
[ 1116.984959]  __dev_queue_xmit+0x311/0x1180
[ 1116.985307]  ? mark_held_locks+0x49/0x80
[ 1116.985639]  ? eth_header+0x2a/0xc0
[ 1116.985932]  ip_finish_output2+0x230/0xa20
[ 1116.986275]  ? ip_skb_dst_mtu+0x51/0x1c0
[ 1116.986600]  ? __ip_queue_xmit+0x1d5/0x6f0
[ 1116.986944]  __ip_queue_xmit+0x1d5/0x6f0
[ 1116.987275]  __tcp_transmit_skb+0xb65/0xd30
[ 1116.987609]  ? __alloc_skb+0xdc/0x1a0
[ 1116.987940]  tcp_rcv_state_process+0x4f3/0x11f0
[ 1116.988317]  ? tcp_v4_rcv+0xdb5/0xef0
[ 1116.988625]  ? tcp_v4_do_rcv+0x64/0x360
[ 1116.988949]  tcp_v4_do_rcv+0x64/0x360
[ 1116.989255]  tcp_v4_rcv+0xe4f/0xef0
[ 1116.989557]  ? process_backlog+0x6f/0x260
[ 1116.989882]  ip_protocol_deliver_rcu+0x4b/0x1e0
[ 1116.990140]  ip_local_deliver_finish+0xaf/0x180
[ 1116.990406]  __netif_receive_skb_one_core+0x8b/0xa0
[ 1116.990680]  process_backlog+0x7c/0x260
[ 1116.990904]  __napi_poll.constprop.0+0x2a/0x1e0
[ 1116.991156]  net_rx_action+0x2be/0x340
[ 1116.991368]  __do_softirq+0xcb/0x37a
[ 1116.991577]  ? tcp_recvmsg+0x80/0x200
[ 1116.991787]  do_softirq+0x4d/0x90
[ 1116.991984]  </IRQ>
[ 1116.992116]  <TASK>
[ 1116.992253]  __local_bh_enable_ip+0xbf/0xe0
[ 1116.992492]  tcp_recvmsg+0x80/0x200
[ 1116.992699]  inet_recvmsg+0x70/0x260
[ 1116.992915]  __sys_recvfrom+0x168/0x1a0
[ 1116.993137]  ? do_pselect.constprop.0+0xde/0x170
[ 1116.993398]  ? task_mm_cid_work+0x18b/0x3c0
[ 1116.993639]  __x64_sys_recvfrom+0x24/0x30
[ 1116.993866]  do_syscall_64+0xcc/0x1e0
[ 1116.994079]  entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 1116.994381] RIP: 0033:0x7f3bf43624c0
[ 1116.994657] Code: 84 00 00 00 00 00 0f 1f 40 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20
[ 1116.996109] RSP: 002b:00007ffd7736c1c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
[ 1116.996710] RAX: ffffffffffffffda RBX: 000056473d108a20 RCX: 00007f3bf43624c0
[ 1116.997278] RDX: 0000000000002000 RSI: 00007ffd7736c250 RDI: 0000000000000008
[ 1116.997843] RBP: 00007ffd7736c250 R08: 0000000000000000 R09: 0000000000000000
[ 1116.998403] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
[ 1116.998960] R13: 000056473d108a20 R14: 0000000000000000 R15: 00007ffd7736c24c
[ 1116.999537]  </TASK>
[ 1159.845966] ncat (3642) used greatest stack depth: 10672 bytes left
TEST: mirred_egress_to_ingress_tcp (skip_hw)                        [ OK ]
# INFO: Could not test offloaded functionality
ok 1 selftests: net/forwarding: tc_actions.sh
make[1]: Leaving directory '/home/virtme/testing-2/tools/testing/selftests/net/forwarding'
make: Leaving directory '/home/virtme/testing-2/tools/testing/selftests'
xx__-> echo $?
0
xx__->