[ 10.273654][ T249] ip (249) used greatest stack depth: 23872 bytes left [ 13.394275][ T303] br1: port 1(veth1) entered blocking state [ 13.394878][ T303] br1: port 1(veth1) entered disabled state [ 13.395797][ T303] veth1: entered allmulticast mode [ 13.397738][ T303] veth1: entered promiscuous mode [ 13.491159][ T40] br1: port 1(veth1) entered blocking state [ 13.491804][ T40] br1: port 1(veth1) entered forwarding state [ 13.585506][ T307] br1: port 2(veth2) entered blocking state [ 13.585834][ T307] br1: port 2(veth2) entered disabled state [ 13.586936][ T307] veth2: entered allmulticast mode [ 13.588941][ T307] veth2: entered promiscuous mode [ 13.686735][ T68] br1: port 2(veth2) entered blocking state [ 13.687135][ T68] br1: port 2(veth2) entered forwarding state [ 21.296234][ T345] GACT probability NOT on [ 21.471244][ T346] [ 21.471535][ T346] ============================= [ 21.471705][ T346] WARNING: suspicious RCU usage [ 21.472061][ T346] 6.14.0-rc6-virtme #1 Not tainted [ 21.472233][ T346] ----------------------------- [ 21.472397][ T346] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 21.472659][ T346] [ 21.472659][ T346] other info that might help us debug this: [ 21.472659][ T346] [ 21.472969][ T346] [ 21.472969][ T346] rcu_scheduler_active = 2, debug_locks = 1 [ 21.473216][ T346] 1 lock held by mausezahn/346: [ 21.473375][ T346] #0: ffffffff8cf5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 21.473670][ T346] [ 21.473670][ T346] stack backtrace: [ 21.473857][ T346] CPU: 3 UID: 0 PID: 346 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 21.473862][ T346] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 21.473864][ T346] Call Trace: [ 21.473866][ T346] [ 21.473868][ T346] dump_stack_lvl+0xb0/0xd0 [ 21.473875][ T346] lockdep_rcu_suspicious+0x1ea/0x280 [ 21.473885][ T346] dev_hard_start_xmit+0x2fc/0x3f0 [ 21.473895][ T346] __dev_queue_xmit+0xfaf/0x18d0 [ 21.473909][ T346] ? __pfx___dev_queue_xmit+0x10/0x10 [ 21.473914][ T346] ? packet_parse_headers+0x231/0x9c0 [ 21.473922][ T346] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 21.473928][ T346] ? __pfx_packet_parse_headers+0x10/0x10 [ 21.473932][ T346] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 21.473938][ T346] ? dev_get_by_index+0xb2/0x190 [ 21.473949][ T346] packet_snd+0xd0c/0x19d0 [ 21.473961][ T346] ? __lock_release+0x103/0x460 [ 21.473964][ T346] ? __might_fault+0x11b/0x170 [ 21.473971][ T346] ? __pfx_packet_snd+0x10/0x10 [ 21.473973][ T346] ? trace_lock_acquire+0x14c/0x1f0 [ 21.473976][ T346] ? __might_fault+0x11b/0x170 [ 21.473983][ T346] ? lock_acquire+0x32/0xc0 [ 21.473989][ T346] ? __might_fault+0x11b/0x170 [ 21.474000][ T346] __sys_sendto+0x3c3/0x450 [ 21.474006][ T346] ? __pfx___sys_sendto+0x10/0x10 [ 21.474020][ T346] ? sock_ioctl+0x3b6/0x590 [ 21.474029][ T346] ? __pfx___up_read+0x10/0x10 [ 21.474038][ T346] ? do_user_addr_fault+0x374/0xe30 [ 21.474048][ T346] ? do_user_addr_fault+0x374/0xe30 [ 21.474055][ T346] __x64_sys_sendto+0xe0/0x1c0 [ 21.474058][ T346] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 21.474064][ T346] do_syscall_64+0xc1/0x1d0 [ 21.474071][ T346] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 21.474079][ T346] RIP: 0033:0x7fdb11748a4a [ 21.474084][ T346] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89 [ 21.474087][ T346] RSP: 002b:00007ffe5f0eb298 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 21.474090][ T346] RAX: ffffffffffffffda RBX: 00000000314b49d0 RCX: 00007fdb11748a4a [ 21.474093][ T346] RDX: 000000000000008e RSI: 00000000314b4cf2 RDI: 0000000000000005 [ 21.474094][ T346] RBP: 00000000314b4cf2 R08: 00007ffe5f0eb2a0 R09: 0000000000000014 [ 21.474096][ T346] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 21.474098][ T346] R13: 000000000000008e R14: 00007ffe5f0eb2a0 R15: 0000000000000000 [ 21.474114][ T346] [ 25.034025][ C2] tc action pedit unable to extract header offset for header type (0x5) [ 26.569267][ C1] tc action pedit unable to extract header offset for header type (0x5) [ 28.618268][ C3] tc action pedit unable to extract header offset for header type (0x5) [ 40.905347][ C0] tc action pedit unable to extract header offset for header type (0x4) [ 45.513305][ C3] tc action pedit unable to extract header offset for header type (0x4) [ 46.537554][ C3] tc action pedit unable to extract header offset for header type (0x4) [ 49.736792][ T736] br1: port 2(veth2) entered disabled state [ 49.752300][ T736] ip (736) used greatest stack depth: 23256 bytes left [ 49.816707][ T737] veth2: left allmulticast mode [ 49.816982][ T737] veth2: left promiscuous mode [ 49.817351][ T737] br1: port 2(veth2) entered disabled state [ 49.894983][ T738] br1: port 1(veth1) entered disabled state [ 49.960364][ T739] veth1: left allmulticast mode [ 49.960630][ T739] veth1: left promiscuous mode [ 49.960973][ T739] br1: port 1(veth1) entered disabled state