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 # overriding timeout to 21600 # selftests: net/forwarding: tc_actions.sh [ 36.210908][ T328] GACT probability NOT on # TEST: gact drop and ok (skip_hw) [ OK ] [ 41.334665][ T391] 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 ] [ 52.054896][ T504] ping (504) used greatest stack depth: 23480 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 61.142881][ C2] [ 61.143046][ C2] ============================================ [ 61.143378][ C2] WARNING: possible recursive locking detected [ 61.143697][ C2] 6.8.0-rc3-virtme #1 Not tainted [ 61.143961][ C2] -------------------------------------------- [ 61.144294][ C2] ksoftirqd/2/27 is trying to acquire lock: [ 61.144607][ C2] ffff888006249b70 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x221e/0x2ac0 [ 61.145087][ C2] [ 61.145087][ C2] but task is already holding lock: [ 61.145466][ C2] ffff888006248e30 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x221e/0x2ac0 [ 61.145934][ C2] [ 61.145934][ C2] other info that might help us debug this: [ 61.146369][ C2] Possible unsafe locking scenario: [ 61.146369][ C2] [ 61.146754][ C2] CPU0 [ 61.146930][ C2] ---- [ 61.147118][ C2] lock(slock-AF_INET/1); [ 61.147359][ C2] lock(slock-AF_INET/1); [ 61.147603][ C2] [ 61.147603][ C2] *** DEADLOCK *** [ 61.147603][ C2] [ 61.148022][ C2] May be due to missing lock nesting notation [ 61.148022][ C2] [ 61.148451][ C2] 8 locks held by ksoftirqd/2/27: [ 61.148726][ C2] #0: ffffffffbb5467e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1ed/0x5e0 [ 61.149236][ C2] #1: ffffffffbb5467e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1f5/0x480 [ 61.149765][ C2] #2: ffff888006248e30 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x221e/0x2ac0 [ 61.150257][ C2] #3: ffffffffbb5467e0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x65/0x17b0 [ 61.150752][ C2] #4: ffffffffbb5467e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 61.151263][ C2] #5: ffffffffbb546780 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1da/0x17e0 [ 61.151792][ C2] #6: ffffffffbb5467e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal+0x84/0x300 [ 61.152336][ C2] #7: ffffffffbb5467e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1f5/0x480 [ 61.152862][ C2] [ 61.152862][ C2] stack backtrace: [ 61.153173][ C2] CPU: 2 PID: 27 Comm: ksoftirqd/2 Not tainted 6.8.0-rc3-virtme #1 [ 61.153591][ C2] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 61.154224][ C2] Call Trace: [ 61.154401][ C2] [ 61.154569][ C2] dump_stack_lvl+0x64/0xb0 [ 61.154811][ C2] validate_chain+0x525/0xa00 [ 61.155067][ C2] ? __pfx_validate_chain+0x10/0x10 [ 61.155340][ C2] ? hlock_class+0x4e/0x130 [ 61.155592][ C2] ? mark_lock+0x38/0x3e0 [ 61.155818][ C2] __lock_acquire+0xb67/0x1610 [ 61.156076][ C2] ? lock_downgrade+0xa0/0x110 [ 61.156342][ C2] ? mark_lock+0x38/0x3e0 [ 61.156568][ C2] lock_acquire.part.0+0xe5/0x330 [ 61.156837][ C2] ? tcp_v4_rcv+0x2 DETECTED CRASH, lowering timeout 21e/0x2ac0 [ 61.157094][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 61.157392][ C2] ? __pfx_sk_filter_trim_cap+0x10/0x10 [ 61.157690][ C2] ? lock_acquire+0x1c1/0x220 [ 61.157942][ C2] ? tcp_v4_rcv+0x221e/0x2ac0 [ 61.158199][ C2] _raw_spin_lock_nested+0x33/0x80 [ 61.158470][ C2] ? tcp_v4_rcv+0x221e/0x2ac0 [ 61.158724][ C2] tcp_v4_rcv+0x221e/0x2ac0 [ 61.158972][ C2] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 61.159233][ C2] ? __pfx_raw_v4_input+0x10/0x10 [ 61.159501][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 61.159806][ C2] ip_protocol_deliver_rcu+0x93/0x360 [ 61.160092][ C2] ip_local_deliver_finish+0x2ae/0x480 [ 61.160384][ C2] ip_local_deliver+0x19d/0x480 [ 61.160638][ C2] ? __pfx_ip_local_deliver+0x10/0x10 [ 61.160923][ C2] ? tcp_v4_early_demux+0x59a/0x9d0 [ 61.161205][ C2] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 61.161537][ C2] ip_rcv+0x564/0x740 [ 61.161754][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 61.162009][ C2] ? lock_acquire.part.0+0xe5/0x330 [ 61.162289][ C2] ? netif_receive_skb_internal+0x84/0x300 [ 61.162599][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 61.162844][ C2] __netif_receive_skb_one_core+0x166/0x1b0 [ 61.163157][ C2] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 61.163498][ C2] ? mark_held_locks+0xa5/0xf0 [ 61.163747][ C2] ? lock_acquire+0x1c1/0x220 [ 61.163993][ C2] ? netif_receive_skb_internal+0x84/0x300 [ 61.164307][ C2] netif_receive_skb_internal+0xb0/0x300 [ 61.164608][ C2] ? __pfx_netif_receive_skb_internal+0x10/0x10 [ 61.164942][ C2] ? __copy_skb_header+0xaf/0x490 [ 61.165210][ C2] ? __skb_clone+0x57a/0x760 [ 61.165459][ C2] netif_receive_skb+0x55/0x280 [ 61.165713][ C2] tcf_mirred_to_dev+0x444/0xd70 [act_mirred] [ 61.166047][ C2] ? __pfx_tcf_skbedit_act+0x10/0x10 [act_skbedit] [ 61.166398][ C2] tcf_mirred_act+0x338/0x780 [act_mirred] [ 61.166711][ C2] tcf_action_exec.part.0+0x112/0x3d0 [ 61.166996][ C2] fl_classify+0x4dc/0x650 [cls_flower] [ 61.167299][ C2] ? __pfx_fl_classify+0x10/0x10 [cls_flower] [ 61.167634][ C2] ? __pfx_check_irq_usage+0x10/0x10 [ 61.167909][ C2] ? __bfs+0x247/0x650 [ 61.168124][ C2] ? __pfx_hlock_conflict+0x10/0x10 [ 61.168408][ C2] ? check_path.constprop.0+0x24/0x50 [ 61.168686][ C2] ? check_noncircular+0x14e/0x3e0 [ 61.168954][ C2] ? hlock_class+0x4e/0x130 [ 61.169203][ C2] ? __pfx_check_noncircular+0x10/0x10 [ 61.169492][ C2] ? __pfx_hlock_conflict+0x10/0x10 [ 61.169772][ C2] ? __pfx_validate_chain+0x10/0x10 [ 61.170048][ C2] ? hlock_class+0x4e/0x130 [ 61.170298][ C2] ? hlock_class+0x4e/0x130 [ 61.170538][ C2] ? check_prev_add+0x773/0xce0 [ 61.170804][ C2] __tcf_classify+0x329/0x7d0 [ 61.171056][ C2] tcf_classify+0x283/0x930 [ 61.171304][ C2] ? __pfx_tcf_classify+0x10/0x10 [ 61.171570][ C2] ? __dev_queue_xmit+0x1da/0x17e0 [ 61.171846][ C2] ? __dev_queue_xmit+0x1da/0x17e0 [ 61.172119][ C2] tc_run+0x2e4/0x5d0 [ 61.172340][ C2] ? __pfx_tc_run+0x10/0x10 [ 61.172578][ C2] ? lock_acquire+0x1c1/0x220 [ 61.172826][ C2] ? __dev_queue_xmit+0x1da/0x17e0 [ 61.173104][ C2] __dev_queue_xmit+0x686/0x17e0 [ 61.173367][ C2] ? mark_held_locks+0xa5/0xf0 [ 61.173626][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x151/0x370 [ 61.173974][ C2] ? __pfx___dev_queue_xmit+0x10/0x10 [ 61.174263][ C2] ? __pfx_vrf_output_direct_finish+0x1/0x10 [vrf] [ 61.174623][ C2] ip_finish_output2+0x786/0x18e0 [ 61.174886][ C2] ? __pfx_ip_finish_output2+0x10/0x10 [ 61.175172][ C2] ? __ip_finish_output+0x3dd/0x770 [ 61.175454][ C2] ip_output+0x16b/0x4f0 [ 61.175676][ C2] ? __pfx_ip_output+0x10/0x10 [ 61.175933][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 61.176241][ C2] ? lockdep_hardirqs_on_prepare.part.0+0x151/0x370 [ 61.176581][ C2] ? ip_local_out+0x114/0x3b0 [ 61.176835][ C2] __ip_queue_xmit+0x672/0x17b0 [ 61.177101][ C2] ? __skb_clone+0x57a/0x760 [ 61.177343][ C2] __tcp_transmit_skb+0x22b1/0x2d20 [ 61.177623][ C2] ? __pfx___tcp_transmit_skb+0x10/0x10 [ 61.177920][ C2] ? tcp_small_queue_check.isra.0+0xe9/0x380 [ 61.178237][ C2] tcp_write_xmit+0x94f/0x1cb0 [ 61.178499][ C2] ? ipv4_mtu+0x37/0x360 [ 61.178728][ C2] ? __pfx_tcp_write_xmit+0x10/0x10 [ 61.179009][ C2] ? __pfx_tcp_current_mss+0x10/0x10 [ 61.179291][ C2] __tcp_push_pending_frames+0x96/0x320 [ 61.179588][ C2] tcp_rcv_state_process+0x77c/0x1fd0 [ 61.179866][ C2] ? tcp_v4_rcv+0x221e/0x2ac0 [ 61.180114][ C2] ? hlock_class+0x4e/0x130 [ 61.180360][ C2] ? __lock_acquired+0x18a/0x6b0 [ 61.180617][ C2] ? __pfx_tcp_rcv_state_process+0x10/0x10 [ 61.180923][ C2] ? __pfx___lock_acquired+0x10/0x10 [ 61.181207][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 61.181506][ C2] tcp_v4_do_rcv+0x154/0x860 [ 61.181756][ C2] tcp_v4_rcv+0x2449/0x2ac0 [ 61.182003][ C2] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 61.182268][ C2] ? __pfx_raw_v4_input+0x10/0x10 [ 61.182535][ C2] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 61.182837][ C2] ip_protocol_deliver_rcu+0x93/0x360 [ 61.183120][ C2] ip_local_deliver_finish+0x2ae/0x480 [ 61.183415][ C2] ip_local_deliver+0x19d/0x480 [ 61.183667][ C2] ? __pfx_ip_local_deliver+0x10/0x10 [ 61.183947][ C2] ? tcp_v4_early_demux+0x59a/0x9d0 [ 61.184229][ C2] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 61.184570][ C2] ip_rcv+0x564/0x740 [ 61.184792][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 61.185029][ C2] ? lock_acquire.part.0+0xe5/0x330 [ 61.185305][ C2] ? process_backlog+0x1ed/0x5e0 [ 61.185573][ C2] ? __pfx_ip_rcv+0x10/0x10 [ 61.185808][ C2] __netif_receive_skb_one_core+0x166/0x1b0 [ 61.186124][ C2] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 61.186465][ C2] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 61.186758][ C2] ? lock_acquire+0x1c1/0x220 [ 61.187002][ C2] ? process_backlog+0x1ed/0x5e0 [ 61.187271][ C2] process_backlog+0xd3/0x5e0 [ 61.187527][ C2] __napi_poll.constprop.0+0xa2/0x460 [ 61.187814][ C2] net_rx_action+0x440/0xb40 [ 61.188062][ C2] ? __pfx_net_rx_action+0x10/0x10 [ 61.188337][ C2] ? __pfx___schedule+0x10/0x10 [ 61.188591][ C2] ? __pfx___lock_release+0x10/0x10 [ 61.188865][ C2] __do_softirq+0x1b9/0x7ff [ 61.189114][ C2] ? __pfx_run_ksoftirqd+0x10/0x10 [ 61.189385][ C2] run_ksoftirqd+0x2e/0x60 [ 61.189625][ C2] smpboot_thread_fn+0x30b/0x840 [ 61.189892][ C2] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 61.190188][ C2] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 61.190477][ C2] kthread+0x28f/0x360 [ 61.190700][ C2] ? __pfx_kthread+0x10/0x10 [ 61.190941][ C2] ret_from_fork+0x31/0x70 [ 61.191173][ C2] ? __pfx_kthread+0x10/0x10 [ 61.191424][ C2] ret_from_fork_asm+0x1b/0x30 [ 61.191677][ C2] [ 83.240107][ T548] ncat (548) used greatest stack depth: 21312 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__->