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 ]
[ 1143.186993] Mirror/redirect action on
# TEST: mirred egress flower redirect (skip_hw)                       [ OK ]
# TEST: mirred egress flower mirror (skip_hw)                         [ OK ]
# TEST: mirred egress matchall mirror (skip_hw)                       [ OK ]
[ 1148.078632] ping (5457) used greatest stack depth: 11512 bytes left
# TEST: mirred_egress_to_ingress (skip_hw)                            [ OK ]
# [ 1151.655167] 
[ 1151.655284] ============================================
[ 1151.655586] WARNING: possible recursive locking detected
[ 1151.655860] 6.8.0-rc2-virtme #1 Not tainted
[ 1151.656074] --------------------------------------------
[ 1151.656377] ncat/5580 is trying to acquire lock:
[ 1151.656623] ffff968d43ad00b0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdba/0xf00
[ 1151.657056] 
[ 1151.657056] but task is already holding lock:
[ 1151.657353] ffff968d43ad0cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdba/0xf00
[ 1151.657778] 
[ 1151.657778] other info that might help us debug this:
[ 1151.658109]  Possible unsafe locking scenario:
[ 1151.658109] 
[ 1151.658409]        CPU0
[ 1151.658568]        ----
[ 1151.658698]   lock(slock-AF_INET/1);
[ 1151.658905]   lock(slock-AF_INET/1);
[ 1151.659096] 
[ 1151.659096]  *** DEADLOCK ***
[ 1151.659096] 
[ 1151.659425]  May be due to missing lock nesting notation
[ 1151.659425] 
[ 1151.659771] 8 locks held by ncat/5580:
[ 1151.659967]  #0: ffffffffb8b678c0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x6f/0x260
[ 1151.660431]  #1: ffffffffb8b678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180
[ 1151.660898]  #2: ffff968d43ad0cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdba/0xf00
[ 1151.661317]  #3: ffffffffb8b678c0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x3f/0x6f0
[ 1151.661774]  #4: ffffffffb8b678c0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0xc6/0xa20
[ 1151.662213]  #5: ffffffffb8b67880 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x6e/0x1180
[ 1151.662686]  #6: ffffffffb8b678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb+0x58/0x2c0
[ 1151.663151]  #7: ffffffffb8b678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180
[ 1151.663616] 
[ 1151.663616] stack backtrace:
[ 1151.663873] CPU: 3 PID: 5580 Comm: ncat Not tainted 6.8.0-rc2-virtme #1
[ 1151.664212] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1151.664812] Call Trace:
[ 1151.664952]  <IRQ>
[ 1151.665066]  dump_stack_lvl+0x4b/0x80
[ 1151.665278]  __lock_acquire+0x1215/0x1750
[ 1151.665507]  ? sk_filter_trim_cap+0x53/0x360
[ 1151.665733]  lock_acquire+0xc1/0x2b0
[ 1151.665954]  ? tcp_v4_rcv+0xdba/0xf00
[ 1151.666168]  ? sk_filter_trim_cap+0x11a/0x360
[ 1151.666424]  _raw_spin_lock_nested+0x2e/0x40
[ 1151.666688]  ? tcp_v4_rcv+0xdba/0xf00
[ 1151.666931]  tcp_v4_rcv+0xdba/0xf00
[ 1151.667118]  ip_protocol_deliver_rcu+0x4b/0x1e0
[ 1151.667367]  ip_local_deliver_finish+0xaf/0x180
[ 1151.667623]  __netif_receive_skb_one_core+0x8b/0xa0
[ 1151.667898]  netif_receive_skb+0x87/0x2c0
[ 1151.668112]  tcf_mirred_to_dev+0x1f6/0x410 [act_mirred]
[ 1151.668395]  tcf_mirred_act+0xee/0x560 [act_mirred]
[ 1151.668673]  ? tcf_skbedit_act+0x1d6/0x410 [act_skbedit]
[ 1151.668972]  tcf_action_exec+0xac/0x230
[ 1151.669173]  fl_classify+0x20e/0x260 [cls_flower]
[ 1151.669433]  ? tcf_mirred_act+0xee/0x560 [act_mirred]
[ 1151.669718]  ? __bfs+0xf3/0x240
[ 1151.669890]  ? check_irq_usage+0x19c/0xc40
[ 1151.670101]  ? find_held_lock+0x2b/0x80
[ 1151.670339]  ? check_path.constprop.0+0x24/0x50
[ 1151.670648]  ? check_noncircular+0x81/0x150
[ 1151.670868]  ? __lock_acquire+0xa6e/0x1750
[ 1151.671082]  tcf_classify+0x17a/0x540
[ 1151.671309]  tc_run+0x9f/0x150
[ 1151.671511]  __dev_queue_xmit+0x311/0x1180
[ 1151.671752]  ? mark_held_locks+0x49/0x80
[ 1151.671961]  ip_finish_output2+0x39f/0xa20
[ 1151.672199]  ? ip_skb_dst_mtu+0x51/0x1c0
[ 1151.672407]  ? __ip_queue_xmit+0x1d5/0x6f0
[ 1151.672632]  __ip_queue_xmit+0x1d5/0x6f0
[ 1151.672865]  __tcp_transmit_skb+0xb65/0xd30
[ 1151.673083]  ? __alloc_skb+0xdc/0x1a0
[ 1151.673276]  tcp_rcv_state_process+0x4fb/0x1230
[ 1151.673545]  ? lock_acquire+0xc1/0x2b0
[ 1151.673742]  ? tcp_v4_rcv+0xdba/0xf00
[ 1151.674019]  ? tcp_v4_do_rcv+0x85/0x3a0
[ 1151.674341]  tcp_v4_do_rcv+0x85/0x3a0
[ 1151.674623]  tcp_v4_rcv+0xe54/0xf00
[ 1151.674878]  ? process_backlog+0x6f/0x260
[ 1151.675183]  ip_protocol_deliver_rcu+0x4b/0x1e0
[ 1151.675516]  ip_local_deliver_finish+0xaf/0x180
[ 1151.675867]  __netif_receive_skb_one_core+0x8b/0xa0
[ 1151.676264]  process_backlog+0x7c/0x260
[ 1151.676557]  __napi_poll.constprop.0+0x27/0x1e0
[ 1151.676930]  net_rx_action+0x2be/0x340
[ 1151.677222]  __do_softirq+0xc8/0x37a
[ 1151.677507]  ? tcp_recvmsg+0x80/0x200
[ 1151.677820]  do_softirq+0x4d/0x90
[ 1151.678083]  </IRQ>
[ 1151.678278]  <TASK>
[ 1151.678452]  __local_bh_enable_ip+0xbf/0xe0
[ 1151.678785]  tcp_recvmsg+0x80/0x200
[ 1151.679063]  inet_recvmsg+0x70/0x260
[ 1151.679359]  __sys_recvfrom+0x168/0x1a0
[ 1151.679666]  ? do_pselect.constprop.0+0xde/0x170
[ 1151.680031]  ? task_mm_cid_work+0x18b/0x3c0
[ 1151.680393]  __x64_sys_recvfrom+0x24/0x30
[ 1151.680698]  do_syscall_64+0xc9/0x1e0
[ 1151.681010]  entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 1151.681419] RIP: 0033:0x7ff7f3b834c0
[ 1151.681701] 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
[ 1151.683127] RSP: 002b:00007ffc48fb60b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
[ 1151.683749] RAX: ffffffffffffffda RBX: 000055b9774fda20 RCX: 00007ff7f3b834c0
[ 1151.684302] RDX: 0000000000002000 RSI: 00007ffc48fb6140 RDI: 0000000000000008
[ 1151.684873] RBP: 00007ffc48fb6140 R08: 0000000000000000 R09: 0000000000000000
[ 1151.685406] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
[ 1151.685972] R13: 000055b9774fda20 R14: 0000000000000000 R15: 00007ffc48fb613c
[ 1151.686526]  </TASK>
[ 1198.949900] ncat (5581) used greatest stack depth: 10664 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__->