make -C tools/testing/selftests TARGETS=net/forwarding TEST_PROGS=tc_actioons.sh TEST_GEN_PROGS="" run_tests make: Entering directory '/home/virtme/testing-4/tools/testing/selftests' make[1]: Entering directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/virtme/testing-4/tools/testing/selftests/net/forwarding' make[1]: Entering directory '/home/virtme/testing-4/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 ] [ 1229.765732][ T5756] ping (5756) used greatest stack depth: 23352 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 1233.290194][ C0] [ 1233.290403][ C0] ============================================ [ 1233.290740][ C0] WARNING: possible recursive locking detected [ 1233.291082][ C0] 6.8.0-rc2-virtme #1 Not tainted [ 1233.291415][ C0] -------------------------------------------- [ 1233.291776][ C0] ksoftirqd/0/16 is trying to acquire lock: [ 1233.292103][ C0] ffff8880083f0e30 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x2161/0x29c0 [ 1233.292632][ C0] [ 1233.292632][ C0] but task is already holding lock: [ 1233.293039][ C0] ffff8880083f1b70 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x2161/0x29c0 [ 1233.293530][ C0] [ 1233.293530][ C0] other info that might help us debug this: [ 1233.293997][ C0] Possible unsafe locking scenario: [ 1233.293997][ C0] [ 1233.294410][ C0] CPU0 [ 1233.294599][ C0] ---- [ 1233.294782][ C0] lock(slock-AF_INET/1); [ 1233.295054][ C0] lock(slock-AF_INET/1); [ 1233.295331][ C0] [ 1233.295331][ C0] *** DEADLOCK *** [ 1233.295331][ C0] [ 1233.295769][ C0] May be due to missing lock nesting notation [ 1233.295769][ C0] [ 1233.296204][ C0] 8 locks held by ksoftirqd/0/16: [ 1233.296476][ C0] #0: ffffffffb0f447e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1ed/0x5e0 [ 1233.296997][ C0] #1: ffffffffb0f447e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1f5/0x450 [ 1233.297590][ C0] #2: ffff8880083f1b70 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x2161/0x29c0 [ 1233.298352][ C0] #3: ffffffffb0f447e0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x65/0x1910 [ 1233.299095][ C0] #4: ffffffffb0f447e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 1233.299878][ C0] #5: ffffffffb0f44780 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1c1/0x1ca0 [ 1233.300687][ C0] #6: ffffffffb0f447e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal+0x84/0x300 [ 1233.301523][ C0] #7: ffffffffb0f447e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1f5/0x450 [ 1233.302350][ C0] [ 1233.302350][ C0] stack backtrace: [ 1233.302846][ C0] CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.8.0-rc2-virtme #1 [ 1233.303470][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1233.304440][ C0] Call Trace: [ 1233.304709][ C0] [ 1233.304925][ C0] dump_stack_lvl+0x64/0xb0 [ 1233.305218][ C0] validate_chain+0x525/0xa00 [ 1233.305509][ C0] ? __pfx_validate_chain+0x10/0x10 [ 1233.305796][ C0] ? hlock_class+0x4e/0x130 [ 1233.306049][ C0] ? mark_lock+0x38/0x3e0 [ 1233.306313][ C0] __lock_acquire+0xb67/0x1610 [ 1233.306577][ C0] ? lock_downgrade+0xa0/0x110 [ 1233.306839][ C0] ? mark_lock+0x38/0x3e0 [ 1233.307108][ C0] lock_acquire.part.0+0xe5/0x330 [ 1233.307420][ C0] ? tcp_v4_rcv+0x2161/0x29c0 [ 1233.307677][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1233.307984][ C0] ? __pfx_sk_filter_trim_cap+0x10/0x10 [ 1233.308321][ C0] ? lock_acquire+0x1c1/0x220 [ 1233.308593][ C0] ? tcp_v4_rcv+0x2161/0x29c0 [ 1233.308854][ C0] _raw_spin_lock_nested+0x33/0x80 [ 1233.309135][ C0] ? tcp_v4_rcv+0x2161/0x29c0 [ 1233.309434][ C0] tcp_v4_rcv+0x2161/0x29c0 [ 1233.309702][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 1233.309965][ C0] ? __pfx_raw_v4_input+0x10/0x10 [ 1233.310241][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1233.310585][ C0] ip_protocol_deliver_rcu+0x93/0x360 [ 1233.310900][ C0] ip_local_deliver_finish+0x2ae/0x450 [ 1233.311200][ C0] ip_local_deliver+0x19d/0x480 [ 1233.311494][ C0] ? __pfx_ip_local_deliver+0x10/0x10 [ 1233.311837][ C0] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 1233.312194][ C0] ip_rcv+0x564/0x740 [ 1233.312417][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 1233.312669][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 1233.312987][ C0] ? netif_receive_skb_internal+0x84/0x300 [ 1233.313319][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 1233.313560][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 1233.313884][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 1233.314232][ C0] ? mark_held_locks+0xa5/0xf0 [ 1233.314513][ C0] ? lock_acquire+0x1c1/0x220 [ 1233.314770][ C0] ? netif_receive_skb_internal+0x84/0x300 [ 1233.315085][ C0] netif_receive_skb_internal+0xb0/0x300 [ 1233.315446][ C0] ? __pfx_netif_receive_skb_internal+0x10/0x10 [ 1233.315802][ C0] ? __copy_skb_header+0xaf/0x490 [ 1233.316083][ C0] ? __skb_clone+0x57a/0x760 [ 1233.316338][ C0] netif_receive_skb+0x55/0x280 [ 1233.316634][ C0] tcf_mirred_to_dev+0x444/0xd70 [act_mirred] [ 1233.316981][ C0] ? __pfx_tcf_skbedit_act+0x10/0x10 [act_skbedit] [ 1233.317341][ C0] tcf_mirred_act+0x338/0x780 [act_mirred] [ 1233.317689][ C0] tcf_action_exec.part.0+0x115/0x3d0 [ 1233.317994][ C0] fl_classify+0x4dc/0x650 [cls_flower] [ 1233.318308][ C0] ? __pfx_fl_classify+0x10/0x10 [cls_flower] [ 1233.318671][ C0] ? __pfx_usage_match+0x10/0x10 [ 1233.318956][ C0] ? check_irq_usage+0x27e/0x850 [ 1233.319228][ C0] ? __pfx_check_irq_usage+0x10/0x10 [ 1233.319538][ C0] ? __bfs+0x24a/0x650 [ 1233.319794][ C0] ? __pfx_check_irq_usage+0x10/0x10 [ 1233.320091][ C0] ? __bfs+0x24a/0x650 [ 1233.320319][ C0] ? __pfx_hlock_conflict+0x10/0x10 [ 1233.320601][ C0] ? __bfs+0x24a/0x650 [ 1233.320850][ C0] ? __pfx_usage_match+0x10/0x10 [ 1233.321124][ C0] ? check_path.constprop.0+0x24/0x50 [ 1233.321426][ C0] ? check_noncircular+0x14e/0x3e0 [ 1233.321745][ C0] ? __pfx_check_noncircular+0x10/0x10 [ 1233.322059][ C0] __tcf_classify+0x32c/0x7d0 [ 1233.322319][ C0] tcf_classify+0x283/0x930 [ 1233.322567][ C0] ? __pfx_tcf_classify+0x10/0x10 [ 1233.322880][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 1233.323176][ C0] ? __dev_queue_xmit+0x1c1/0x1ca0 [ 1233.323488][ C0] tc_run+0x2e4/0x5d0 [ 1233.323708][ C0] ? __pfx_tc_run+0x10/0x10 [ 1233.323987][ C0] ? lock_acquire+0x1c1/0x220 [ 1233.324246][ C0] ? __dev_queue_xmit+0x1c1/0x1ca0 [ 1233.324525][ C0] ? __dev_queue_xmit+0x1c1/0x1ca0 [ 1233.324835][ C0] __dev_queue_xmit+0x8eb/0x1ca0 [ 1233.325123][ C0] ? mark_lock+0x38/0x3e0 [ 1233.325359][ C0] ? mark_held_locks+0xa5/0xf0 [ 1233.325619][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 1233.325944][ C0] ? neigh_hh_output+0x348/0x590 [ 1233.326235][ C0] ? vrf_ip_local_out+0x781/0x860 [vrf] [ 1233.326550][ C0] ip_finish_output2+0x786/0x18e0 [ 1233.326853][ C0] ? __pfx_ip_finish_output2+0x10/0x10 [ 1233.327168][ C0] ? __ip_finish_output+0x10f/0x770 [ 1233.327477][ C0] ip_output+0x16b/0x4f0 [ 1233.327712][ C0] ? hlock_class+0x4e/0x130 [ 1233.327997][ C0] ? __pfx_ip_output+0x10/0x10 [ 1233.328268][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1233.328580][ C0] ? ip_local_out+0x114/0x3b0 [ 1233.328836][ C0] __ip_queue_xmit+0x672/0x1910 [ 1233.329135][ C0] __tcp_transmit_skb+0x22b1/0x2d20 [ 1233.329434][ C0] ? __pfx___tcp_transmit_skb+0x10/0x10 [ 1233.329743][ C0] ? __tcp_send_ack.part.0+0x66/0x6e0 [ 1233.330038][ C0] tcp_rcv_state_process+0x8a7/0x21c0 [ 1233.330375][ C0] ? __pfx_tcp_rcv_state_process+0x10/0x10 [ 1233.330705][ C0] ? tcp_v4_rcv+0x2161/0x29c0 [ 1233.330969][ C0] ? tcp_v4_rcv+0x2161/0x29c0 [ 1233.331226][ C0] ? hlock_class+0x4e/0x130 [ 1233.331532][ C0] tcp_v4_do_rcv+0x1ac/0x8e0 [ 1233.331809][ C0] ? __pfx_tcp_v4_do_rcv+0x10/0x10 [ 1233.332089][ C0] tcp_v4_rcv+0x2362/0x29c0 [ 1233.332347][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 1233.332645][ C0] ? __pfx_raw_v4_input+0x10/0x10 [ 1233.332935][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 1233.333248][ C0] ip_protocol_deliver_rcu+0x93/0x360 [ 1233.333542][ C0] ip_local_deliver_finish+0x2ae/0x450 [ 1233.333867][ C0] ip_local_deliver+0x19d/0x480 [ 1233.334150][ C0] ? __pfx_ip_local_deliver+0x10/0x10 [ 1233.334452][ C0] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 1233.334796][ C0] ip_rcv+0x564/0x740 [ 1233.335031][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 1233.335287][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 1233.335613][ C0] ? process_backlog+0x1ed/0x5e0 [ 1233.335890][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 1233.336138][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 1233.336496][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 1233.336855][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 1233.337163][ C0] ? lock_acquire+0x1c1/0x220 [ 1233.337423][ C0] ? process_backlog+0x1ed/0x5e0 [ 1233.337732][ C0] process_backlog+0xd3/0x5e0 [ 1233.338004][ C0] __napi_poll.constprop.0+0xa5/0x450 [ 1233.338295][ C0] net_rx_action+0x440/0xb40 [ 1233.338550][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 1233.338866][ C0] ? __pfx___schedule+0x10/0x10 [ 1233.339146][ C0] ? __pfx___lock_release+0x10/0x10 [ 1233.339459][ C0] __do_softirq+0x1bc/0x7ff [ 1233.339708][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 1233.340029][ C0] run_ksoftirqd+0x2e/0x60 [ 1233.340287][ C0] smpboot_thread_fn+0x30e/0x840 [ 1233.340559][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 1233.340856][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 1233.341187][ C0] kthread+0x292/0x360 [ 1233.341428][ C0] ? __pfx_kthread+0x10/0x10 [ 1233.341696][ C0] ret_from_fork+0x34/0x70 [ 1233.341940][ C0] ? __pfx_kthread+0x10/0x10 [ 1233.342225][ C0] ret_from_fork_asm+0x1b/0x30 [ 1233.342507][ C0] [ 1259.588894][ T5805] ncat (5805) used greatest stack depth: 20864 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-4/tools/testing/selftests/net/forwarding' make: Leaving directory '/home/virtme/testing-4/tools/testing/selftests' xx__-> echo $? 0 xx__->