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 # 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 ] [ 2356.055560][T18919] ping (18919) used greatest stack depth: 23480 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 2363.970861][ C0] [ 2363.971018][ C0] ============================================ [ 2363.971343][ C0] WARNING: possible recursive locking detected [ 2363.971653][ C0] 6.8.0-rc4-virtme #1 Not tainted [ 2363.971911][ C0] -------------------------------------------- [ 2363.972240][ C0] ksoftirqd/0/16 is trying to acquire lock: [ 2363.972539][ C0] ffff88800ac11ca8 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x221e/0x2ac0 [ 2363.973008][ C0] [ 2363.973008][ C0] but task is already holding lock: [ 2363.973380][ C0] ffff88800ac10f68 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x221e/0x2ac0 [ 2363.973836][ C0] [ 2363.973836][ C0] other info that might help us debug this: [ 2363.974253][ C0] Possible unsafe locking scenario: [ 2363.974253][ C0] [ 2363.974628][ C0] CPU0 [ 2363.974800][ C0] ---- [ 2363.974983][ C0] lock(slock-AF_INET/1); [ 2363.975220][ C0] lock(slock-AF_INET/1); [ 2363.975456][ C0] [ 2363.975456][ C0] *** DEADLOCK *** [ 2363.975456][ C0] [ 2363.975865][ C0] May be due to missing lock nesting notation [ 2363.975865][ C0] [ 2363.976284][ C0] 8 locks held by ksoftirqd/0/16: [ 2363.976549][ C0] #0: ffffffff9c3467e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1ef/0x5e0 [ 2363.977044][ C0] #1: ffffffff9c3467e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1fd/0x490 [ 2363.977561][ C0] #2: ffff88800ac10f68 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x221e/0x2ac0 [ 2363.978039][ C0] #3: ffffffff9c3467e0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x65/0x17b0 [ 2363.978519][ C0] #4: ffffffff9c3467e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 2363.979020][ C0] #5: ffffffff9c346780 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1da/0x17e0 [ 2363.979523][ C0] #6: ffffffff9c3467e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal+0x84/0x300 [ 2363.980060][ C0] #7: ffffffff9c3467e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1fd/0x490 [ 2363.980578][ C0] [ 2363.980578][ C0] stack backtrace: [ 2363.980892][ C0] CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.8.0-rc4-virtme #1 [ 2363.981292][ C0] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 2363.981919][ C0] Call Trace: [ 2363.982098][ C0] [ 2363.982258][ C0] dump_stack_lvl+0x64/0xb0 [ 2363.982492][ C0] validate_chain+0x525/0xa00 [ 2363.982745][ C0] ? __pfx_validate_chain+0x10/0x10 [ 2363. DETECTED CRASH, lowering timeout 983019][ C0] ? hlock_class+0x4e/0x130 [ 2363.983253][ C0] ? mark_lock+0x38/0x3e0 [ 2363.983486][ C0] __lock_acquire+0xb67/0x1610 [ 2363.983738][ C0] ? lock_downgrade+0xd0/0x110 [ 2363.983992][ C0] ? mark_lock+0x38/0x3e0 [ 2363.984218][ C0] lock_acquire.part.0+0xe5/0x330 [ 2363.984485][ C0] ? tcp_v4_rcv+0x221e/0x2ac0 [ 2363.984731][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 2363.985024][ C0] ? __pfx_sk_filter_trim_cap+0x10/0x10 [ 2363.985310][ C0] ? lock_acquire+0x1c1/0x220 [ 2363.985560][ C0] ? tcp_v4_rcv+0x221e/0x2ac0 [ 2363.985807][ C0] _raw_spin_lock_nested+0x33/0x80 [ 2363.986077][ C0] ? tcp_v4_rcv+0x221e/0x2ac0 [ 2363.986323][ C0] tcp_v4_rcv+0x221e/0x2ac0 [ 2363.986570][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 2363.986824][ C0] ? __pfx_raw_v4_input+0x10/0x10 [ 2363.987088][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 2363.987381][ C0] ip_protocol_deliver_rcu+0x93/0x360 [ 2363.987665][ C0] ip_local_deliver_finish+0x2b6/0x490 [ 2363.987944][ C0] ip_local_deliver+0x19d/0x480 [ 2363.988201][ C0] ? __pfx_ip_local_deliver+0x10/0x10 [ 2363.988471][ C0] ? tcp_v4_early_demux+0x5a1/0x9e0 [ 2363.988740][ C0] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 2363.989071][ C0] ip_rcv+0x564/0x740 [ 2363.989281][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 2363.989524][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 2363.989802][ C0] ? netif_receive_skb_internal+0x84/0x300 [ 2363.990106][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 2363.990343][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 2363.990651][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 2363.990985][ C0] ? mark_held_locks+0xa5/0xf0 [ 2363.991238][ C0] ? lock_acquire+0x1c1/0x220 [ 2363.991477][ C0] ? netif_receive_skb_internal+0x84/0x300 [ 2363.991775][ C0] netif_receive_skb_internal+0xb0/0x300 [ 2363.992069][ C0] ? __pfx_netif_receive_skb_internal+0x10/0x10 [ 2363.992391][ C0] ? __copy_skb_header+0xaf/0x490 [ 2363.992662][ C0] ? __skb_clone+0x57a/0x760 [ 2363.992903][ C0] netif_receive_skb+0x55/0x280 [ 2363.993162][ C0] tcf_mirred_to_dev+0x444/0xd70 [act_mirred] [ 2363.993475][ C0] ? __pfx_tcf_skbedit_act+0x10/0x10 [act_skbedit] [ 2363.993818][ C0] tcf_mirred_act+0x338/0x780 [act_mirred] [ 2363.994118][ C0] tcf_action_exec.part.0+0x112/0x3d0 [ 2363.994400][ C0] fl_classify+0x4dc/0x650 [cls_flower] [ 2363.994696][ C0] ? __pfx_fl_classify+0x10/0x10 [cls_flower] [ 2363.995014][ C0] ? __pfx_check_irq_usage+0x10/0x10 [ 2363.995286][ C0] ? __bfs+0x247/0x650 [ 2363.995505][ C0] ? __pfx_hlock_conflict+0x10/0x10 [ 2363.995777][ C0] ? check_path.constprop.0+0x24/0x50 [ 2363.996059][ C0] ? check_noncircular+0x14e/0x3e0 [ 2363.996325][ C0] ? hlock_class+0x4e/0x130 [ 2363.996566][ C0] ? __pfx_check_noncircular+0x10/0x10 [ 2363.996849][ C0] ? __pfx_hlock_conflict+0x10/0x10 [ 2363.997123][ C0] ? __pfx_validate_chain+0x10/0x10 [ 2363.997393][ C0] ? hlock_class+0x4e/0x130 [ 2363.997637][ C0] ? hlock_class+0x4e/0x130 [ 2363.997878][ C0] ? check_prev_add+0x773/0xce0 [ 2363.998139][ C0] __tcf_classify+0x329/0x7d0 [ 2363.998385][ C0] tcf_classify+0x283/0x930 [ 2363.998625][ C0] ? __pfx_tcf_classify+0x10/0x10 [ 2363.998885][ C0] ? __dev_queue_xmit+0x1da/0x17e0 [ 2363.999153][ C0] ? __dev_queue_xmit+0x1da/0x17e0 [ 2363.999419][ C0] tc_run+0x2e4/0x5d0 [ 2363.999634][ C0] ? __pfx_tc_run+0x10/0x10 [ 2363.999878][ C0] ? lock_acquire+0x1c1/0x220 [ 2364.000130][ C0] ? __dev_queue_xmit+0x1da/0x17e0 [ 2364.000400][ C0] __dev_queue_xmit+0x686/0x17e0 [ 2364.000662][ C0] ? mark_held_locks+0xa5/0xf0 [ 2364.000912][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x151/0x370 [ 2364.001258][ C0] ? __pfx___dev_queue_xmit+0x10/0x10 [ 2364.001530][ C0] ? vrf_ip_local_out+0x7e1/0x860 [vrf] [ 2364.001832][ C0] ip_finish_output2+0x786/0x18e0 [ 2364.002094][ C0] ? __pfx_ip_finish_output2+0x10/0x10 [ 2364.002380][ C0] ? __ip_finish_output+0x3dd/0x770 [ 2364.002645][ C0] ip_output+0x16b/0x4f0 [ 2364.002864][ C0] ? __pfx_ip_output+0x10/0x10 [ 2364.003118][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 2364.003408][ C0] ? lockdep_hardirqs_on_prepare.part.0+0x151/0x370 [ 2364.003751][ C0] ? ip_local_out+0x114/0x3b0 [ 2364.003995][ C0] __ip_queue_xmit+0x672/0x17b0 [ 2364.004255][ C0] ? __skb_clone+0x57a/0x760 [ 2364.004488][ C0] __tcp_transmit_skb+0x22b2/0x2d30 [ 2364.004759][ C0] ? __pfx___tcp_transmit_skb+0x10/0x10 [ 2364.005047][ C0] ? tcp_small_queue_check.isra.0+0xe9/0x380 [ 2364.005354][ C0] tcp_write_xmit+0x94f/0x1cb0 [ 2364.005610][ C0] ? ipv4_mtu+0x37/0x360 [ 2364.005831][ C0] ? __pfx_tcp_write_xmit+0x10/0x10 [ 2364.006105][ C0] ? __pfx_tcp_current_mss+0x10/0x10 [ 2364.006380][ C0] __tcp_push_pending_frames+0x96/0x320 [ 2364.006668][ C0] tcp_rcv_state_process+0x77c/0x1fd0 [ 2364.006951][ C0] ? tcp_v4_rcv+0x221e/0x2ac0 [ 2364.007197][ C0] ? hlock_class+0x4e/0x130 [ 2364.007436][ C0] ? __lock_acquired+0x18a/0x6b0 [ 2364.007690][ C0] ? __pfx_tcp_rcv_state_process+0x10/0x10 [ 2364.007995][ C0] ? __pfx___lock_acquired+0x10/0x10 [ 2364.008265][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 2364.008564][ C0] tcp_v4_do_rcv+0x154/0x860 [ 2364.008805][ C0] tcp_v4_rcv+0x2449/0x2ac0 [ 2364.009050][ C0] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 2364.009297][ C0] ? __pfx_raw_v4_input+0x10/0x10 [ 2364.009561][ C0] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 2364.009865][ C0] ip_protocol_deliver_rcu+0x93/0x360 [ 2364.010146][ C0] ip_local_deliver_finish+0x2b6/0x490 [ 2364.010426][ C0] ip_local_deliver+0x19d/0x480 [ 2364.010681][ C0] ? __pfx_ip_local_deliver+0x10/0x10 [ 2364.010957][ C0] ? tcp_v4_early_demux+0x5a1/0x9e0 [ 2364.011236][ C0] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 2364.011557][ C0] ip_rcv+0x564/0x740 [ 2364.011768][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 2364.012009][ C0] ? lock_acquire.part.0+0xe5/0x330 [ 2364.012282][ C0] ? process_backlog+0x1ef/0x5e0 [ 2364.012545][ C0] ? __pfx_ip_rcv+0x10/0x10 [ 2364.012781][ C0] __netif_receive_skb_one_core+0x166/0x1b0 [ 2364.013092][ C0] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 2364.013421][ C0] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 2364.013716][ C0] ? lock_acquire+0x1c1/0x220 [ 2364.013961][ C0] ? process_backlog+0x1ef/0x5e0 [ 2364.014223][ C0] process_backlog+0xd5/0x5e0 [ 2364.014465][ C0] __napi_poll.constprop.0+0xa2/0x460 [ 2364.014739][ C0] net_rx_action+0x440/0xb40 [ 2364.014988][ C0] ? __pfx_net_rx_action+0x10/0x10 [ 2364.015251][ C0] ? __pfx___schedule+0x10/0x10 [ 2364.015511][ C0] ? __pfx___lock_release+0x10/0x10 [ 2364.015783][ C0] __do_softirq+0x1b9/0x7ff [ 2364.016022][ C0] ? __pfx_run_ksoftirqd+0x10/0x10 [ 2364.016286][ C0] run_ksoftirqd+0x2e/0x60 [ 2364.016526][ C0] smpboot_thread_fn+0x30b/0x840 [ 2364.016783][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 2364.017070][ C0] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 2364.017353][ C0] kthread+0x28f/0x360 [ 2364.017572][ C0] ? __pfx_kthread+0x10/0x10 [ 2364.017812][ C0] ret_from_fork+0x31/0x70 [ 2364.018049][ C0] ? __pfx_kthread+0x10/0x10 [ 2364.018291][ C0] ret_from_fork_asm+0x1b/0x30 [ 2364.018548][ C0] [ 2399.444450][T18963] ncat (18963) 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__->