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 [ 29.472605][ T328] GACT probability NOT on # TEST: gact drop and ok (skip_hw) [ OK ] [ 33.567891][ T405] 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 ] [ 39.109378][ T502] mausezahn (502) used greatest stack depth: 24136 bytes left [ 41.848708][ T544] ping (544) used greatest stack depth: 23352 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 50.012737][ C3] [ 50.012907][ C3] ============================================ [ 50.013250][ C3] WARNING: possible recursive locking detected [ 50.013588][ C3] 6.8.0-rc2-virtme #1 Not tainted [ 50.013878][ C3] -------------------------------------------- [ 50.014213][ C3] ncat/597 is trying to acquire lock: [ 50.014508][ C3] ffff888008309b70 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x2159/0x29b0 [ 50.014991][ C3] [ 50.014991][ C3] but task is already holding lock: [ 50.015377][ C3] ffff888008308e30 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x2159/0x29b0 [ 50.015858][ C3] [ 50.015858][ C3] other info that might help us debug this: [ 50.016280][ C3] Possible unsafe locking scenario: [ 50.016280][ C3] [ 50.016674][ C3] CPU0 [ 50.016866][ C3] ---- [ 50.017039][ C3] lock(slock-AF_INET/1); [ 50.017289][ C3] lock(slock-AF_INET/1); [ 50.017550][ C3] [ 50.017550][ C3] *** DEADLOCK *** [ 50.017550][ C3] [ 50.017981][ C3] May be due to missing lock nesting notation [ 50.017981][ C3] [ 50.018429][ C3] 8 locks held by ncat/597: [ 50.018673][ C3] #0: ffffffffa33447e0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x1ed/0x5e0 [ 50.019190][ C3] #1: ffffffffa33447e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1f5/0x450 [ 50.019763][ C3] #2: ffff888008308e30 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0x2159/0x29b0 [ 50.020285][ C3] #3: ffffffffa33447e0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x65/0x1910 [ 50.020811][ C3] #4: ffffffffa33447e0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0x262/0x18e0 [ 50.021355][ C3] #5: ffffffffa3344780 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x1c1/0x1ca0 [ 50.021917][ C3] #6: ffffffffa33447e0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb_internal+0x84/0x300 [ 50.022495][ C3] #7: ffffffffa33447e0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1f5/0x450 [ 50.023036][ C3] [ 50.023036][ C3] stack backtrace: [ 50.023376][ C3] CPU: 3 PID: 597 Comm: ncat Not tainted 6.8.0-rc2-virtme #1 [ 50.023793][ C3] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 50.024461][ C3] Call Trace: [ 50.024637][ C3] [ 50.024800][ C3] dump_stack_lvl+0x64/0xb0 [ 50.025061][ C3] validate_chain+0x525/0xa00 [ 50.025315][ C3] ? __pfx_validate_chain+0x10/0x10 [ 50.025602][ C3] ? hlock_class+0x4e/0x130 [ 50.025872][ C3] ? mark_lock+0x38/0x3e0 [ 50.026119][ C3] __lock_acquire+0xb67/0x1610 [ 50.026381][ C3] ? lock_downgrade+0xa0/0x110 [ 50.026651][ C3] ? mark_lock+0x38/0x3e0 [ 50.026897][ C3] lock_acquire.part.0+0xe5/0x330 [ 50.027187][ C3] ? tcp_v4_rcv+0x2159/0x29b0 [ 50.027446][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.027761][ C3] ? __pfx_sk_filter_trim_cap+0x10/0x10 [ 50.028069][ C3] ? lock_acquire+0x1c1/0x220 [ 50.028325][ C3] ? tcp_v4_rcv+0x2159/0x29b0 [ 50.028592][ C3] _raw_spin_lock_nested+0x33/0x80 [ 50.028884][ C3] ? tcp_v4_rcv+0x2159/0x29b0 [ 50.029160][ C3] tcp_v4_rcv+0x2159/0x29b0 [ 50.029413][ C3] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 50.029686][ C3] ? __pfx_raw_v4_input+0x10/0x10 [ 50.029981][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.030309][ C3] ip_protocol_deliver_rcu+0x93/0x360 [ 50.030596][ C3] ip_local_deliver_finish+0x2ae/0x450 [ 50.030899][ C3] ip_local_deliver+0x19d/0x480 [ 50.031187][ C3] ? __pfx_ip_local_deliver+0x10/0x10 [ 50.031479][ C3] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 50.031838][ C3] ip_rcv+0x564/0x740 [ 50.032071][ C3] ? __pfx_ip_rcv+0x10/0x10 [ 50.032316][ C3] ? lock_acquire.part.0+0xe5/0x330 [ 50.032606][ C3] ? netif_receive_skb_internal+0x84/0x300 [ 50.032937][ C3] ? __pfx_ip_rcv+0x10/0x10 [ 50.033205][ C3] __netif_receive_skb_one_core+0x166/0x1b0 [ 50.033516][ C3] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 50.033861][ C3] ? mark_held_locks+0xa5/0xf0 [ 50.034132][ C3] ? lock_acquire+0x1c1/0x220 [ 50.034409][ C3] ? netif_receive_skb_internal+0x84/0x300 [ 50.034743][ C3] netif_receive_skb_internal+0xb0/0x300 [ 50.035068][ C3] ? __pfx_netif_receive_skb_internal+0x10/0x10 [ 50.035403][ C3] ? __copy_skb_header+0xaf/0x490 [ 50.035680][ C3] ? __skb_clone+0x57a/0x760 [ 50.035947][ C3] netif_receive_skb+0x55/0x280 [ 50.036229][ C3] tcf_mirred_to_dev+0x444/0xd70 [act_mirred] [ 50.036575][ C3] ? __pfx_tcf_skbedit_act+0x10/0x10 [act_skbedit] [ 50.036943][ C3] tcf_mirred_act+0x338/0x780 [act_mirred] [ 50.037264][ C3] tcf_action_exec.part.0+0x115/0x3d0 [ 50.037559][ C3] fl_classify+0x4dc/0x650 [cls_flower] [ 50.037872][ C3] ? __pfx_fl_classify+0x10/0x10 [cls_flower] [ 50.038211][ C3] ? __pfx_usage_match+0x10/0x10 [ 50.038486][ C3] ? check_irq_usage+0x27e/0x850 [ 50.038765][ C3] ? __pfx_check_irq_usage+0x10/0x10 [ 50.039072][ C3] ? __bfs+0x24a/0x650 [ 50.039296][ C3] ? __pfx_hlock_conflict+0x10/0x10 [ 50.039595][ C3] ? hlock_class+0x4e/0x130 [ 50.039858][ C3] ? check_path.constprop.0+0x24/0x50 [ 50.040163][ C3] ? check_noncircular+0x14e/0x3e0 [ 50.040443][ C3] ? __pfx_check_noncircular+0x10/0x10 [ 50.040759][ C3] __tcf_classify+0x32c/0x7d0 [ 50.041023][ C3] tcf_classify+0x283/0x930 [ 50.041282][ C3] ? __pfx_tcf_classify+0x10/0x10 [ 50.041561][ C3] ? lock_acquire.part.0+0xe5/0x330 [ 50.041855][ C3] ? __dev_queue_xmit+0x1c1/0x1ca0 [ 50.042146][ C3] tc_run+0x2e4/0x5d0 [ 50.042373][ C3] ? __pfx_tc_run+0x10/0x10 [ 50.042655][ C3] ? lock_acquire+0x1c1/0x220 [ 50.042922][ C3] ? __dev_queue_xmit+0x1c1/0x1ca0 [ 50.043211][ C3] ? __dev_queue_xmit+0x1c1/0x1ca0 [ 50.043485][ C3] __dev_queue_xmit+0x8eb/0x1ca0 [ 50.043762][ C3] ? mark_lock+0x38/0x3e0 [ 50.044010][ C3] ? mark_held_locks+0xa5/0xf0 [ 50.044280][ C3] ? __pfx___dev_queue_xmit+0x10/0x10 [ 50.044588][ C3] ? neigh_hh_output+0x348/0x590 [ 50.044862][ C3] ? vrf_ip_local_out+0x781/0x860 [vrf] [ 50.045175][ C3] ip_finish_output2+0x786/0x18e0 [ 50.045448][ C3] ? __pfx_ip_finish_output2+0x10/0x10 [ 50.045760][ C3] ? __ip_finish_output+0x3dd/0x770 [ 50.046056][ C3] ip_output+0x16b/0x4f0 [ 50.046288][ C3] ? hlock_class+0x4e/0x130 [ 50.046544][ C3] ? __pfx_ip_output+0x10/0x10 [ 50.046797][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.047116][ C3] ? ip_local_out+0x114/0x3b0 [ 50.047370][ C3] __ip_queue_xmit+0x672/0x1910 [ 50.047649][ C3] ? __skb_clone+0x57a/0x760 [ 50.047921][ C3] __tcp_transmit_skb+0x22b1/0x2d20 [ 50.048220][ C3] ? __pfx___tcp_transmit_skb+0x10/0x10 [ 50.048522][ C3] ? tcp_small_queue_check.isra.0+0xe9/0x380 [ 50.048852][ C3] tcp_write_xmit+0xe42/0x24c0 [ 50.049135][ C3] ? ipv4_mtu+0x37/0x360 [ 50.049372][ C3] ? __pfx_tcp_write_xmit+0x10/0x10 [ 50.049672][ C3] ? __pfx_tcp_current_mss+0x10/0x10 [ 50.049984][ C3] __tcp_push_pending_frames+0x96/0x320 [ 50.050303][ C3] tcp_rcv_state_process+0x81e/0x1fd0 [ 50.050594][ C3] ? tcp_v4_rcv+0x2159/0x29b0 [ 50.050866][ C3] ? hlock_class+0x4e/0x130 [ 50.051124][ C3] ? __lock_acquired+0x18a/0x6b0 [ 50.051392][ C3] ? __pfx_tcp_rcv_state_process+0x10/0x10 [ 50.051719][ C3] ? __pfx___lock_acquired+0x10/0x10 [ 50.052022][ C3] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 50.052336][ C3] tcp_v4_do_rcv+0x154/0x850 [ 50.052594][ C3] tcp_v4_rcv+0x235a/0x29b0 [ 50.052855][ C3] ? __pfx_tcp_v4_rcv+0x10/0x10 [ 50.053123][ C3] ? __pfx_raw_v4_input+0x10/0x10 [ 50.053388][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.053701][ C3] ip_protocol_deliver_rcu+0x93/0x360 [ 50.054005][ C3] ip_local_deliver_finish+0x2ae/0x450 [ 50.054312][ C3] ip_local_deliver+0x19d/0x480 [ 50.054582][ C3] ? __pfx_ip_local_deliver+0x10/0x10 [ 50.054885][ C3] ? ip_rcv_finish_core.constprop.0+0x522/0x1300 [ 50.055243][ C3] ip_rcv+0x564/0x740 [ 50.055459][ C3] ? __pfx_ip_rcv+0x10/0x10 [ 50.055730][ C3] ? lock_acquire.part.0+0xe5/0x330 [ 50.056037][ C3] ? process_backlog+0x1ed/0x5e0 [ 50.056319][ C3] ? __pfx_ip_rcv+0x10/0x10 [ 50.056581][ C3] __netif_receive_skb_one_core+0x166/0x1b0 [ 50.056909][ C3] ? __pfx___netif_receive_skb_one_core+0x10/0x10 [ 50.057274][ C3] ? __pfx_do_raw_spin_trylock+0x10/0x10 [ 50.057582][ C3] ? lock_acquire+0x1c1/0x220 [ 50.057847][ C3] ? process_backlog+0x1ed/0x5e0 [ 50.058136][ C3] process_backlog+0xd3/0x5e0 [ 50.058392][ C3] __napi_poll.constprop.0+0xa5/0x450 [ 50.058692][ C3] net_rx_action+0x440/0xb40 [ 50.058960][ C3] ? __pfx_net_rx_action+0x10/0x10 [ 50.059249][ C3] ? kvm_clock_get_cycles+0x18/0x30 [ 50.059535][ C3] ? ktime_get_raw_ts64+0x230/0x240 [ 50.059828][ C3] ? hrtimer_interrupt+0x30e/0x770 [ 50.060120][ C3] ? __pfx_lapic_next_deadline+0x10/0x10 [ 50.060427][ C3] ? clockevents_program_event+0x1ed/0x300 [ 50.060759][ C3] __do_softirq+0x1bc/0x7ff [ 50.061018][ C3] irq_exit_rcu+0x98/0xc0 [ 50.061273][ C3] sysvec_apic_timer_interrupt+0x75/0x80 [ 50.061570][ C3] [ 50.061745][ C3] [ 50.061914][ C3] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 50.062242][ C3] RIP: 0010:finish_task_switch.isra.0+0x21f/0x8b0 [ 50.062579][ C3] Code: 89 ff 48 c7 03 00 00 00 00 e8 8d ba 63 02 4d 85 e4 75 ba 4c 89 ff e8 10 96 63 02 e8 ab e2 2c 00 fb 65 48 8b 1c 25 c0 b6 1f 00 <66> 90 48 83 7d d0 00 74 56 65 48 8b 1c 25 c0 b6 1f 00 48 8d bb e8 [ 50.063608][ C3] RSP: 0018:ffffc9000058fa48 EFLAGS: 00000206 [ 50.063931][ C3] RAX: 0000000000099ac3 RBX: ffff88800832bec0 RCX: 1ffffffff479b791 [ 50.064377][ C3] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff9fa3e7a5 [ 50.064829][ C3] RBP: ffffc9000058fa88 R08: 0000000000000001 R09: fffffbfff479be1a [ 50.065262][ C3] R10: ffffffffa3cdf0d7 R11: ffff888035ffc348 R12: ffff888035ffc198 [ 50.065687][ C3] R13: ffff888001d18040 R14: 0000000000000003 R15: ffff888035ffc180 [ 50.066137][ C3] ? finish_task_switch.isra.0+0x215/0x8b0 [ 50.066459][ C3] ? finish_task_switch.isra.0+0x215/0x8b0 [ 50.066787][ C3] ? __switch_to+0x5df/0xfa0 [ 50.067059][ C3] __schedule+0x70d/0x1ac0 [ 50.067315][ C3] ? __pfx___schedule+0x10/0x10 [ 50.067592][ C3] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 50.067922][ C3] ? schedule+0x1fe/0x280 [ 50.068174][ C3] schedule+0xeb/0x280 [ 50.068398][ C3] pipe_write+0xb3b/0x1840 [ 50.068653][ C3] ? hlock_class+0x4e/0x130 [ 50.068923][ C3] ? __pfx_pipe_write+0x10/0x10 [ 50.069204][ C3] ? __mark_inode_dirty+0x6f5/0x900 [ 50.069509][ C3] ? __pfx_autoremove_wake_function+0x10/0x10 [ 50.069857][ C3] ? __up_write+0x190/0x520 [ 50.070112][ C3] vfs_write+0xac4/0x10a0 [ 50.070361][ C3] ? __pfx_vfs_write+0x10/0x10 [ 50.070637][ C3] ? __fget_light+0x54/0x1e0 [ 50.070912][ C3] ksys_write+0x17a/0x1e0 [ 50.071157][ C3] ? __pfx_ksys_write+0x10/0x10 [ 50.071416][ C3] do_syscall_64+0xcc/0x1e0 [ 50.071671][ C3] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 50.071996][ C3] RIP: 0033:0x7feb2cfc4957 [ 50.072251][ C3] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 50.073274][ C3] RSP: 002b:00007ffe28e0aee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 50.073739][ C3] RAX: ffffffffffffffda RBX: 00005646b143ca20 RCX: 00007feb2cfc4957 [ 50.074159][ C3] RDX: 0000000000002000 RSI: 00007ffe28e0af00 RDI: 0000000000000001 [ 50.074585][ C3] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000 [ 50.075018][ C3] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000002000 [ 50.075450][ C3] R13: 00007ffe28e0af00 R14: 0000000000000000 R15: 00007ffe28e0aefc [ 50.075885][ C3] [ 51.953725][ C1] irq 4: nobody cared (try booting with the "irqpoll" option) [ 51.954141][ C1] CPU: 1 PID: 221 Comm: perl Not tainted 6.8.0-rc2-virtme #1 [ 51.954534][ C1] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 51.955165][ C1] Call Trace: [ 51.955338][ C1] [ 51.955488][ C1] dump_stack_lvl+0x64/0xb0 [ 51.955737][ C1] __report_bad_irq+0x5f/0x180 [ 51.955994][ C1] note_interrupt+0x6b3/0x860 [ 51.956240][ C1] handle_irq_event+0x16d/0x1c0 [ 51.956498][ C1] handle_edge_irq+0x1fa/0xb60 [ 51.956750][ C1] __common_interrupt+0x7f/0x180 [ 51.957018][ C1] common_interrupt+0x7e/0x90 [ 51.957295][ C1] [ 51.957450][ C1] [ 51.957606][ C1] asm_common_interrupt+0x26/0x40 [ 51.957874][ C1] RIP: 0010:_raw_spin_unlock_irqrestore+0x43/0x70 [ 51.958210][ C1] Code: 10 e8 41 bb a6 fd 48 89 ef e8 59 43 a7 fd 81 e3 00 02 00 00 75 1d 9c 58 f6 c4 02 75 29 48 85 db 74 01 fb 65 ff 0d d5 37 18 5e <74> 0e 5b 5d c3 cc cc cc cc e8 4f 4b c9 fd eb dc 0f 1f 44 00 00 5b [ 51.959214][ C1] RSP: 0018:ffffc90000b7fa88 EFLAGS: 00000286 [ 51.959533][ C1] RAX: 0000000000000046 RBX: 0000000000000200 RCX: 1ffffffff479c063 [ 51.959947][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffffa2077f01 [ 51.960359][ C1] RBP: ffffffffa5e229a0 R08: 0000000000000000 R09: fffffbfff479be1a [ 51.960771][ C1] R10: ffffffffa3cdf0d7 R11: 0000000000000000 R12: 0000000000000a8d [ 51.961206][ C1] R13: ffffffffa5e22ab0 R14: ffffffffa5e229a0 R15: ffff888005760000 [ 51.961622][ C1] ? _raw_spin_unlock_irqrestore+0x51/0x70 [ 51.961928][ C1] uart_write+0x220/0x440 [ 51.962163][ C1] process_output_block+0x141/0x790 [ 51.962441][ C1] ? trace_irq_enable.constprop.0+0xd4/0x100 [ 51.962763][ C1] n_tty_write+0x414/0x7a0 [ 51.963002][ C1] ? __pfx_n_tty_write+0x10/0x10 [ 51.963266][ C1] ? __pfx_woken_wake_function+0x10/0x10 [ 51.963563][ C1] ? lock_acquire+0x1c1/0x220 [ 51.963815][ C1] ? iterate_tty_write+0x95/0x540 [ 51.964086][ C1] iterate_tty_write+0x22c/0x540 [ 51.964357][ C1] file_tty_write.constprop.0+0x1db/0x370 [ 51.964663][ C1] vfs_write+0x9ec/0x10a0 [ 51.964894][ C1] ? lock_acquire+0x1c1/0x220 [ 51.965168][ C1] ? __might_fault+0xc6/0x180 [ 51.965425][ C1] ? __pfx_vfs_write+0x10/0x10 [ 51.965679][ C1] ? __might_fault+0xc6/0x180 [ 51.965927][ C1] ? lock_release+0x1d5/0x250 [ 51.966176][ C1] ? __fget_light+0x54/0x1e0 [ 51.966422][ C1] ksys_write+0xf5/0x1e0 [ 51.966650][ C1] ? __pfx_ksys_write+0x10/0x10 [ 51.966902][ C1] ? trace_irq_enable.constprop.0+0xd4/0x100 [ 51.967214][ C1] do_syscall_64+0xcc/0x1e0 [ 51.967459][ C1] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 51.967771][ C1] RIP: 0033:0x7f1d9d244957 [ 51.968010][ C1] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 [ 51.969012][ C1] RSP: 002b:00007ffdf975bff8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.969474][ C1] RAX: ffffffffffffffda RBX: 0000558fbb5d2ea0 RCX: 00007f1d9d244957 [ 51.969891][ C1] RDX: 0000000000000001 RSI: 0000558fbb5d2ea0 RDI: 0000000000000001 [ 51.970308][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000002000 [ 51.970729][ C1] R10: 0000000000000001 R11: 0000000000000246 R12: 0000558fbb5bf510 [ 51.971148][ C1] R13: 0000558fbb5a02a0 R14: 0000000000000001 R15: 0000558fbb5bf510 [ 51.971567][ C1] [ 51.971731][ C1] handlers: [ 51.971896][ C1] [] serial8250_interrupt [ 51.972208][ C1] Disabling IRQ #4 [ 67.479782][ T598] ncat (598) used greatest stack depth: 21168 bytes left TEST: mirred_egress_to_ingress_tcp (skip_hw) [ OK ] # INFO: Could not test offloaded functionality ok 1 selftests: WAIT TIMEOUT stdout Ctrl-C stdout Ctrl-C stdout WAIT TIMEOUT stdout