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 ] [ 1143.329192] 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 ] [ 1148.171249] ping (5520) used greatest stack depth: 11512 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 1152.397861] [ 1152.397976] ============================================ [ 1152.398254] WARNING: possible recursive locking detected [ 1152.398549] 6.8.0-rc3-virtme #1 Not tainted [ 1152.398776] -------------------------------------------- [ 1152.399062] ksoftirqd/0/16 is trying to acquire lock: [ 1152.399319] ffff9fd3046b0cb0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1152.399760] [ 1152.399760] but task is already holding lock: [ 1152.400065] ffff9fd3046b00b0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1152.400467] [ 1152.400467] other info that might help us debug this: [ 1152.400823] Possible unsafe locking scenario: [ 1152.400823] [ 1152.401138] CPU0 [ 1152.401281] ---- [ 1152.401427] lock(slock-AF_INET/1); [ 1152.401613] lock(slock-AF_INET/1); [ 1152.401805] [ 1152.401805] *** DEADLOCK *** [ 1152.401805] [ 1152.402111] May be due to missing lock nesting notation [ 1152.402111] [ 1152.402477] 8 locks held by ksoftirqd/0/16: [ 1152.402690] #0: ffffffffa17678c0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x6f/0x260 [ 1152.403126] #1: ffffffffa17678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180 [ 1152.403594] #2: ffff9fd3046b00b0 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1152.404038] #3: ffffffffa17678c0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x3f/0x700 [ 1152.404471] #4: ffffffffa17678c0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0xc6/0xa20 [ 1152.404915] #5: ffffffffa1767880 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x6e/0x1180 [ 1152.405377] #6: ffffffffa17678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb+0x58/0x2c0 [ 1152.405826] #7: ffffffffa17678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180 [ 1152.406329] [ 1152.406329] stack backtrace: [ 1152.406567] CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.8.0-rc3-virtme #1 [ 1152.406966] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1152.407580] Call Trace: [ 1152.407717] [ 1152.407838] dump_stack_lvl+0x4b/0x80 [ 1152.408058] __lock_acquire+0x1215/0x1750 [ 1152.408281] ? sk_filter_trim_cap+0x53/0x360 [ 1152.408522] lock_acquire+0xc1/0x2b0 [ 1152.408723] ? tcp_v4_rcv+0xdb5/0xef0 [ 1152.408924] ? sk_filter_trim_cap+0x11a/0x360 [ 1152.409151] _raw_spin_lock_nested+0x2e/0x40 [ 1152.409397] ? tcp_v4_rcv+0xdb5/0xef0 [ 1152.409609] tcp_v4_rcv+0xdb5/0xef0 [ 1152.409807] ip_protocol_deliver_rcu+0x4b/0x1e0 [ 1152.410055] ip_local_deliver_finish+0xaf/0x180 [ 1152.410302] __netif_receive_skb_one_core+0x8b/0xa0 [ 1152.410570] netif_receive_skb+0x87/0x2c0 [ 1152.410791] tcf_mirred_to_dev+0x1 DETECTED CRASH, lowering timeout f6/0x410 [act_mirred] [ 1152.411073] tcf_mirred_act+0xee/0x560 [act_mirred] [ 1152.411342] ? tcf_skbedit_act+0x1d6/0x410 [act_skbedit] [ 1152.411628] tcf_action_exec+0xac/0x230 [ 1152.411838] fl_classify+0x20e/0x260 [cls_flower] [ 1152.412105] ? fl_mask_lookup+0x17e/0x5a0 [cls_flower] [ 1152.412380] ? __bfs+0xf3/0x240 [ 1152.412562] ? check_irq_usage+0x19c/0xc40 [ 1152.412787] ? lock_is_held_type+0x9f/0x120 [ 1152.413010] ? check_path.constprop.0+0x24/0x50 [ 1152.413271] ? check_noncircular+0x81/0x150 [ 1152.413492] ? lock_release+0xbe/0x270 [ 1152.413696] ? __lock_acquire+0xa6e/0x1750 [ 1152.413934] tcf_classify+0x17a/0x540 [ 1152.414140] tc_run+0x9f/0x150 [ 1152.414311] __dev_queue_xmit+0x311/0x1180 [ 1152.414540] ? mark_held_locks+0x49/0x80 [ 1152.414755] ip_finish_output2+0x39f/0xa20 [ 1152.414984] ? __ip_queue_xmit+0x1d5/0x700 [ 1152.415208] __ip_queue_xmit+0x1d5/0x700 [ 1152.415418] __tcp_transmit_skb+0xb65/0xd30 [ 1152.415640] tcp_write_xmit+0x492/0x1400 [ 1152.415891] __tcp_push_pending_frames+0x36/0xc0 [ 1152.416134] tcp_rcv_state_process+0x4d3/0x11f0 [ 1152.416371] ? tcp_v4_rcv+0xdb5/0xef0 [ 1152.416588] ? tcp_v4_do_rcv+0x64/0x360 [ 1152.416800] tcp_v4_do_rcv+0x64/0x360 [ 1152.416992] tcp_v4_rcv+0xe4f/0xef0 [ 1152.417191] ? process_backlog+0x6f/0x260 [ 1152.417409] ip_protocol_deliver_rcu+0x4b/0x1e0 [ 1152.417664] ip_local_deliver_finish+0xaf/0x180 [ 1152.417904] __netif_receive_skb_one_core+0x8b/0xa0 [ 1152.418163] process_backlog+0x7c/0x260 [ 1152.418385] __napi_poll.constprop.0+0x27/0x1e0 [ 1152.418632] net_rx_action+0x2be/0x340 [ 1152.418830] __do_softirq+0xc8/0x37a [ 1152.419023] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 1152.419291] run_ksoftirqd+0x2e/0x40 [ 1152.419490] smpboot_thread_fn+0xd9/0x1d0 [ 1152.419716] kthread+0xda/0x110 [ 1152.419890] ? __pfx_kthread+0x10/0x10 [ 1152.420092] ret_from_fork+0x31/0x50 [ 1152.420307] ? __pfx_kthread+0x10/0x10 [ 1152.420511] ret_from_fork_asm+0x1b/0x30 [ 1152.420728] [ 1169.360441] ncat (5650) used greatest stack depth: 10680 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__->