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 ]
[ 1072.279904] 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 ]
[ 1074.795522] tc (18264) used greatest stack depth: 11592 bytes left
[ 1077.000526] ping (18392) used greatest stack depth: 11512 bytes left
# TEST: mirred_egress_to_ingress (skip_hw)                            [ OK ]
[ 1078.351547] 
[ 1078.351739] ============================================
[ 1078.352217] WARNING: possible recursive locking detected
[ 1078.352691] 6.8.0-rc2-virtme #1 Not tainted
[ 1078.353072] --------------------------------------------
[ 1078.353550] ncat/18526 is trying to acquire lock:
[ 1078.353974] ffff9285450300b0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0
[ 1078.354689] 
[ 1078.354689] but task is already holding lock:
[ 1078.355212] ffff928545030cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0
[ 1078.355902] 
[ 1078.355902] other info that might help us debug this:
[ 1078.356267]  Possible unsafe locking scenario:
[ 1078.356267] 
[ 1078.356597]        CPU0
[ 1078.356740]        ----
[ 1078.356943]   lock(slock-AF_INET/1);
[ 1078.357221]   lock(slock-AF_INET/1);
[ 1078.357422] 
[ 1078.357422]  *** DEADLOCK ***
[ 1078.357422] 
[ 1078.357749]  May be due to missing lock nesting notation
[ 1078.357749] 
[ 1078.358120] 8 locks held by ncat/18526:
[ 1078.358357]  #0: ffffffffa93678c0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x6f/0x260
[ 1078.359046]  #1: ffffffffa93678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180
[ 1078.359637]  #2: ffff928545030cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0
[ 1078.360212]  #3: ffffffffa93678c0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x3f/0x6f0
[ 1078.360980]  #4: ffffffffa93678c0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0xc6/0xa20
[ 1078.361748]  #5: ffffffffa9367880 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x6e/0x1180
[ 1078.362540]  #6: ffffffffa93678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb+0x58/0x2c0
[ 1078.363313]  #7: ffffffffa93678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180
[ 1078.364130] 
[ 1078.364130] stack backtrace:
[ 1078.364534] CPU: 3 PID: 18526 Comm: ncat Not tainted 6.8.0-rc2-virtme #1
[ 1078.365130] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014
[ 1078.366134] Call Trace:
[ 1078.366362]  <IRQ>
[ 1078.366560]  dump_stack_lvl+0x4b/0x80
[ 1078.366898]  __lock_acquire+0x1215/0x1750
[ 1078.367265]  ? sk_filter_trim_cap+0x53/0x360
[ 1078.367658]  lock_acquire+0xc1/0x2b0
[ 1078.367985]  ? tcp_v4_rcv+0xdb5/0xef0
[ 1078.368325]  ? sk_filter_trim_cap+0x11a/0x360
[ 1078.368729]  _raw_spin_lock_nested+0x2e/0x40
[ 1078.369123]  ? tcp_v4_rcv+0xdb5/0xef0
[ 1078.369336]  tcp_v4_rcv+0xdb5/0xef0
[ 1078.369536]  ip_protocol_deliver_rcu+0x4b/0x1e0
[ 1078.369799]  ip_local_deliver_finish+0xaf/0x180
[ 1078.370051]  __netif_receive_skb_one_core+0x8b/0xa0
[ 1078.370331]  netif_receive_skb+0x87/0x2c0
[ 1078.370560]  tcf_mirred_to_dev+0x1f6/0x410 [act_mirred]
[ 1078.370855]  tcf_mirred_act+0xee/0x560 [act_mirred]
[ 1078.371144]  ? tcf_skbedit_act+0x1d6/0x410 [act_skbedit]
[ 1078.371446]  tcf_action_exec+0xaf/0x230
[ 1078.371667]  fl_classify+0x20e/0x260 [cls_flower]
[ 1078.371934]  ? __pfx_usage_match+0x10/0x10
[ 1078.372164]  ? __bfs+0xf6/0x240
[ 1078.372345]  ? check_irq_usage+0x19c/0xc40
[ 1078.372575]  ? __skb_flow_dissect+0xc9/0x2d60
[ 1078.372821]  ? check_path.constprop.0+0x24/0x50
[ 1078.373071]  ? check_noncircular+0x81/0x150
[ 1078.373302]  ? __skb_flow_dissect+0x2fb/0x2d60
[ 1078.373550]  ? lock_is_held_type+0x9f/0x120
[ 1078.373786]  ? __lock_acquire+0xa6e/0x1750
[ 1078.374016]  tcf_classify+0x17d/0x540
[ 1078.374223]  tc_run+0x9f/0x150
[ 1078.374400]  __dev_queue_xmit+0x311/0x1180
[ 1078.374632]  ? mark_held_locks+0x49/0x80
[ 1078.374852]  ? eth_header+0x2a/0xc0
[ 1078.375054]  ip_finish_output2+0x230/0xa20
[ 1078.375286]  ? ip_skb_dst_mtu+0x51/0x1c0
[ 1078.375504]  ? __ip_queue_xmit+0x1d5/0x6f0
[ 1078.375742]  __ip_queue_xmit+0x1d5/0x6f0
[ 1078.375959]  __tcp_transmit_skb+0xb65/0xd30
[ 1078.376198]  ? __alloc_skb+0xdc/0x1a0
[ 1078.376407]  tcp_rcv_state_process+0x4f3/0x11f0
[ 1078.376665]  ? tcp_v4_rcv+0xdb5/0xef0
[ 1078.376873]  ? tcp_v4_do_rcv+0x64/0x360
[ 1078.377087]  tcp_v4_do_rcv+0x64/0x360
[ 1078.377295]  tcp_v4_rcv+0xe4f/0xef0
[ 1078.377498]  ? process_backlog+0x6f/0x260
[ 1078.377722]  ip_protocol_deliver_rcu+0x4b/0x1e0
[ 1078.377978]  ip_local_deliver_finish+0xaf/0x180
[ 1078.378234]  __netif_receive_skb_one_core+0x8b/0xa0
[ 1078.378509]  process_backlog+0x7c/0x260
[ 1078.378726]  __napi_poll.constprop.0+0x2a/0x1e0
[ 1078.378980]  net_rx_action+0x2be/0x340
[ 1078.379193]  __do_softirq+0xcb/0x37a
[ 1078.379394]  ? tcp_recvmsg+0x80/0x200
[ 1078.379611]  do_softirq+0x4d/0x90
[ 1078.379808]  </IRQ>
[ 1078.379932]  <TASK>
[ 1078.380056]  __local_bh_enable_ip+0xbf/0xe0
[ 1078.380291]  tcp_recvmsg+0x80/0x200
[ 1078.380493]  inet_recvmsg+0x70/0x260
[ 1078.380700]  __sys_recvfrom+0x168/0x1a0
[ 1078.380916]  ? find_held_lock+0x2b/0x80
[ 1078.381158]  ? do_user_addr_fault+0x394/0x830
[ 1078.381407]  ? lock_release+0xbe/0x270
[ 1078.381623]  ? do_user_addr_fault+0x399/0x830
[ 1078.381865]  __x64_sys_recvfrom+0x24/0x30
[ 1078.382089]  do_syscall_64+0xcc/0x1e0
[ 1078.382299]  entry_SYSCALL_64_after_hwframe+0x6f/0x77
[ 1078.382580] RIP: 0033:0x7f9eb450d4c0
[ 1078.382784] 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
[ 1078.383922] RSP: 002b:00007fff9449fb38 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
[ 1078.384588] RAX: ffffffffffffffda RBX: 000055e367233a20 RCX: 00007f9eb450d4c0
[ 1078.385039] RDX: 0000000000002000 RSI: 00007fff9449fbc0 RDI: 0000000000000008
[ 1078.385544] RBP: 00007fff9449fbc0 R08: 0000000000000000 R09: 0000000000000000
[ 1078.386080] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000008
[ 1078.386706] R13: 000055e367233a20 R14: 0000000000000000 R15: 00007fff9449fbbc
[ 1078.387335]  </TASK>
# [ 1078.690981] ncat (18527) 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__->