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 ] [ 1143.669055] 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 ] [ 1148.502876] ping (5477) used greatest stack depth: 11512 bytes left # TEST: mirred_egress_to_ingress (skip_hw) [ OK ] # [ 1153.907777] [ 1153.907901] ============================================ [ 1153.908205] WARNING: possible recursive locking detected [ 1153.908489] 6.8.0-rc4-virtme #1 Not tainted [ 1153.908709] -------------------------------------------- [ 1153.908987] ksoftirqd/0/16 is trying to acquire lock: [ 1153.909252] ffff9aeb06558dd8 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1153.909669] [ 1153.909669] but task is already holding lock: [ 1153.910045] ffff9aeb065581d8 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1153.910459] [ 1153.910459] other info that might help us debug this: [ 1153.910797] Possible unsafe locking scenario: [ 1153.910797] [ 1153.911104] CPU0 [ 1153.911240] ---- [ 1153.911376] lock(slock-AF_INET/1); [ 1153.911568] lock(slock-AF_INET/1); [ 1153.911761] [ 1153.911761] *** DEADLOCK *** [ 1153.911761] [ 1153.912066] May be due to missing lock nesting notation [ 1153.912066] [ 1153.912414] 8 locks held by ksoftirqd/0/16: [ 1153.912642] #0: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: process_backlog+0x76/0x260 [ 1153.913093] #1: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180 [ 1153.913653] #2: ffff9aeb065581d8 (slock-AF_INET/1){+.-.}-{2:2}, at: tcp_v4_rcv+0xdb5/0xef0 [ 1153.914087] #3: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: __ip_queue_xmit+0x3f/0x6f0 [ 1153.914537] #4: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: ip_finish_output2+0xc6/0xa20 [ 1153.915011] #5: ffffffff83b67880 (rcu_read_lock_bh){....}-{1:2}, at: __dev_queue_xmit+0x6e/0x1180 [ 1153.915470] #6: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: netif_receive_skb+0x58/0x2c0 [ 1153.915921] #7: ffffffff83b678c0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x6f/0x180 [ 1153.916403] [ 1153.916403] stack backtrace: [ 1153.916685] CPU: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.8.0-rc4-virtme #1 [ 1153.917058] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 [ 1153.917650] Call Trace: [ 1153.917789] [ 1153.917911] dump_stack_lvl+0x4b/0x80 [ 1153.918123] __lock_acquire+0x1215/0x1750 [ 1153.918393] ? sk_filter_trim_cap+0x53/0x360 [ 1153.918635] lock_acquire+0xc1/0x2b0 [ 1153.918839] ? tcp_v4_rcv+0xdb5/0xef0 [ 1153.919062] ? sk_filter_trim_cap+0x11a/0x360 [ 1153.919291] _raw_spin_lock_nested+0x2e/0x40 [ 1153.919529] ? tcp_v4_rcv+0xdb5/0xef0 [ 1153.919725] tcp_v4_rcv+0xdb5/0xef0 [ 1153.919918] ip_protocol_deliver_rcu+0x4b/0x1e0 [ 1153.92016 DETECTED CRASH, lowering timeout 1] ip_local_deliver_finish+0xaf/0x180 [ 1153.920401] __netif_receive_skb_one_core+0x8b/0xa0 [ 1153.920660] netif_receive_skb+0x87/0x2c0 [ 1153.920876] tcf_mirred_to_dev+0x1f6/0x410 [act_mirred] [ 1153.921164] tcf_mirred_act+0xee/0x560 [act_mirred] [ 1153.921477] ? tcf_skbedit_act+0x1d6/0x410 [act_skbedit] [ 1153.921765] tcf_action_exec+0xac/0x230 [ 1153.921973] fl_classify+0x20e/0x260 [cls_flower] [ 1153.922236] ? fl_mask_lookup+0x17e/0x5a0 [cls_flower] [ 1153.922553] ? __bfs+0xf3/0x240 [ 1153.922734] ? check_irq_usage+0x19c/0xc40 [ 1153.922964] ? check_path.constprop.0+0x24/0x50 [ 1153.923214] ? check_noncircular+0x81/0x150 [ 1153.923443] ? lock_release+0xbe/0x270 [ 1153.923657] ? __lock_acquire+0xa6e/0x1750 [ 1153.923878] tcf_classify+0x17a/0x540 [ 1153.924087] tc_run+0x9f/0x150 [ 1153.924341] __dev_queue_xmit+0x311/0x1180 [ 1153.924579] ? mark_held_locks+0x49/0x80 [ 1153.924785] ip_finish_output2+0x39f/0xa20 [ 1153.924998] ? __ip_queue_xmit+0x1d5/0x6f0 [ 1153.925223] __ip_queue_xmit+0x1d5/0x6f0 [ 1153.925433] __tcp_transmit_skb+0xb66/0xd30 [ 1153.925654] tcp_write_xmit+0x492/0x1410 [ 1153.925873] __tcp_push_pending_frames+0x36/0xc0 [ 1153.926164] tcp_rcv_state_process+0x4c9/0x11f0 [ 1153.926402] ? tcp_v4_rcv+0xdb5/0xef0 [ 1153.926610] ? tcp_v4_do_rcv+0x64/0x360 [ 1153.926820] tcp_v4_do_rcv+0x64/0x360 [ 1153.927016] tcp_v4_rcv+0xe4f/0xef0 [ 1153.927207] ? process_backlog+0x76/0x260 [ 1153.927433] ip_protocol_deliver_rcu+0x4b/0x1e0 [ 1153.927710] ip_local_deliver_finish+0xaf/0x180 [ 1153.927961] __netif_receive_skb_one_core+0x8b/0xa0 [ 1153.928216] process_backlog+0x83/0x260 [ 1153.928418] __napi_poll.constprop.0+0x27/0x1e0 [ 1153.928667] net_rx_action+0x2c8/0x350 [ 1153.928907] __do_softirq+0xc8/0x37a [ 1153.929107] ? __pfx_smpboot_thread_fn+0x10/0x10 [ 1153.929364] run_ksoftirqd+0x2e/0x40 [ 1153.929587] smpboot_thread_fn+0xd9/0x1d0 [ 1153.929795] kthread+0xda/0x110 [ 1153.929964] ? __pfx_kthread+0x10/0x10 [ 1153.930174] ret_from_fork+0x31/0x50 [ 1153.930379] ? __pfx_kthread+0x10/0x10 [ 1153.930603] ret_from_fork_asm+0x1b/0x30 [ 1153.930820] [ 1166.980545] ncat (5602) 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__->