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 ] # TEST: mirred egress flower redirect (skip_hw) [ OK ] # TEST: mirred egress flower mirror (skip_hw) [ OK ] # TEST: mirred egress matchall mirror (skip_hw) [ OK ] [ 1049.134988] ping (4271) used greatest stack depth: 11512 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 1050.496350] [ 1050.496458] ============================================ [ 1050.496759] WARNING: possible recursive locking detected [ 1050.497049] 6.8.0-rc2-virtme #1 Not tainted [ 1050.497297] -------------------------------------------- [ 1050.497582] swapper/1/0 is trying to acquire lock: [ 1050.497838] ffff8dfd857800b0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1050.498285] [ 1050.498285] but task is already holding lock: [ 1050.498594] ffff8dfd85780cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1050.499039] [ 1050.499039] other info that might help us debug this: [ 1050.499409] Possible unsafe locking scenario: [ 1050.499409] [ 1050.499729] CPU0 [ 1050.499882] ---- [ 1050.500027] lock(slock-AF_INET/1); [ 1050.500236] lock(slock-AF_INET/1); [ 1050.500434] [ 1050.500434] *** DEADLOCK *** [ 1050.500434] [ 1050.500748] May be due to missing lock nesting notation [ 1050.500748] [ 1050.501118] 8 locks held by swapper/1/0: [ 1050.501330] #0: ffffffffb87678c0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x6f/0x260 [ 1050.501800] #1: ffffffffb87678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180 [ 1050.502314] #2: ffff8dfd85780cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1050.502767] #3: ffffffffb87678c0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x3f/0x6f0 [ 1050.503249] #4: ffffffffb87678c0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0xc6/0xa20 [ 1050.503724] #5: ffffffffb8767880 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x6e/0x1180 [ 1050.504199] #6: ffffffffb87678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb+0x58/0x2c0 [ 1050.504677] #7: ffffffffb87678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180 [ 1050.505172] [ 1050.505172] stack backtrace: [ 1050.505434] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc2-virtme #1 [ 1050.505819] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1050.506434] Call Trace: [ 1050.506586] <IRQ> [ 1050.506702] dump_stack_lvl+0x4b/0x80 [ 1050.506918] __lock_acquire+0x1215/0x1750 [ 1050.507161] ? sk_filter_trim_cap+0x53/0x360 [ 1050.507438] lock_acquire+0xc1/0x2b0 [ 1050.507636] ? tcp_v4_rcv+0xdb5/0xef0 [ 1050.507862] ? sk_filter_trim_cap+0x11a/0x360 [ 1050.508114] _raw_spin_lock_nested+0x2e/0x40 [ 1050.508372] ? tcp_v4_rcv+0xdb5/0xef0 [ 1050.508573] tcp_v4_rcv+0xdb5/0xef0 [ 1050.508783] ip_protocol_deliver_rcu+0x4b/0x1e0 [ 1050.509050] ip_local_deliver_finish+0xaf/0x180 [ 1050.509311] __netif_receive_skb_one_core+0x8b/0xa0 [ 1050.509594] netif_receive_skb+0x87/0x2c0 [ 1050.509827] tcf_mirred_to_dev+0x1f6/0x410 [act_mirred] [ 1050.510128] tcf_mirred_act+0xee/0x560 [act_mirred] [ 1050.510407] ? tcf_skbedit_act+0x1d6/0x410 [act_skbedit] [ 1050.510696] tcf_action_exec+0xaf/0x230 [ 1050.510925] fl_classify+0x20e/0x260 [cls_flower] [ 1050.511202] ? __lock_acquire+0xa6e/0x1750 [ 1050.511441] ? __lock_acquire+0xa6e/0x1750 [ 1050.511663] ? __lock_acquire+0xa6e/0x1750 [ 1050.511902] ? __lock_acquire+0xa6e/0x1750 [ 1050.512158] ? bit_waitqueue+0x2b/0x40 [ 1050.512380] ? irq_exit_rcu+0x86/0xa0 [ 1050.512604] ? lock_release+0xbe/0x270 [ 1050.512829] tcf_classify+0x17d/0x540 [ 1050.513045] tc_run+0x9f/0x150 [ 1050.513232] __dev_queue_xmit+0x311/0x1180 [ 1050.513475] ? eth_header+0x2a/0xc0 [ 1050.513668] ip_finish_output2+0x230/0xa20 [ 1050.513907] ? ip_skb_dst_mtu+0x51/0x1c0 [ 1050.514140] ? __ip_queue_xmit+0x1d5/0x6f0 [ 1050.514381] __ip_queue_xmit+0x1d5/0x6f0 [ 1050.514600] __tcp_transmit_skb+0xb65/0xd30 [ 1050.514842] ? __alloc_skb+0xdc/0x1a0 [ 1050.515059] tcp_rcv_state_process+0x4f3/0x11f0 [ 1050.515317] ? tcp_v4_rcv+0xdb5/0xef0 [ 1050.515533] ? tcp_v4_do_rcv+0x64/0x360 [ 1050.515758] tcp_v4_do_rcv+0x64/0x360 [ 1050.515960] tcp_v4_rcv+0xe4f/0xef0 [ 1050.516167] ? process_backlog+0x6f/0x260 [ 1050.516401] ip_protocol_deliver_rcu+0x4b/0x1e0 [ 1050.516648] ip_local_deliver_finish+0xaf/0x180 [ 1050.516908] __netif_receive_skb_one_core+0x8b/0xa0 [ 1050.517186] process_backlog+0x7c/0x260 [ 1050.517422] __napi_poll.constprop.0+0x2a/0x1e0 [ 1050.517669] net_rx_action+0x2be/0x340 [ 1050.517892] __do_softirq+0xcb/0x37a [ 1050.518117] irq_exit_rcu+0x7f/0xa0 [ 1050.518328] sysvec_apic_timer_interrupt+0x78/0x90 [ 1050.518590] </IRQ> [ 1050.518729] <TASK> [ 1050.518851] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 1050.519145] RIP: 0010:default_idle+0xf/0x20 [ 1050.519399] Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d d3 3d 40 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 [ 1050.520381] RSP: 0018:ffff9f92000a3ee8 EFLAGS: 00000206 [ 1050.520681] RAX: 000000000036cc33 RBX: ffff8dfd81373480 RCX: 4000000000000000 [ 1050.521078] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffffb6da8863 [ 1050.521465] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001 [ 1050.521842] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 [ 1050.522246] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 1050.522643] ? do_idle+0x1e3/0x220 [ 1050.522836] default_idle_call+0x83/0x180 [ 1050.523066] do_idle+0x1e3/0x220 [ 1050.523264] ? finish_task_switch.isra.0+0xf7/0x330 [ 1050.523549] cpu_startup_entry+0x2a/0x30 [ 1050.523776] start_secondary+0xfc/0x100 [ 1050.524006] secondary_startup_64_no_verify+0x16d/0x17b [ 1050.524318] </TASK> [ 1076.365360] ncat (4425) 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__->