[ 14.355766][ T300] br0: port 1(veth1) entered blocking state [ 14.356563][ T300] br0: port 1(veth1) entered disabled state [ 14.357006][ T300] veth1: entered allmulticast mode [ 14.359060][ T300] veth1: entered promiscuous mode [ 14.447455][ T302] br0: port 2(veth2) entered blocking state [ 14.447819][ T302] br0: port 2(veth2) entered disabled state [ 14.448164][ T302] veth2: entered allmulticast mode [ 14.450284][ T302] veth2: entered promiscuous mode [ 14.631966][ T46] br0: port 1(veth1) entered blocking state [ 14.632381][ T46] br0: port 1(veth1) entered forwarding state [ 14.713622][ T72] br0: port 2(veth2) entered blocking state [ 14.713980][ T72] br0: port 2(veth2) entered forwarding state [ 23.255233][ T350] veth0: entered promiscuous mode [ 23.759289][ T356] GACT probability NOT on [ 23.911354][ T357] [ 23.911681][ T357] ============================= [ 23.911876][ T357] WARNING: suspicious RCU usage [ 23.912057][ T357] 6.14.0-rc6-virtme #1 Not tainted [ 23.912216][ T357] ----------------------------- [ 23.912392][ T357] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 23.912648][ T357] [ 23.912648][ T357] other info that might help us debug this: [ 23.912648][ T357] [ 23.913105][ T357] [ 23.913105][ T357] rcu_scheduler_active = 2, debug_locks = 1 [ 23.913335][ T357] 1 lock held by mausezahn/357: [ 23.913488][ T357] #0: ffffffffb9f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 23.913777][ T357] [ 23.913777][ T357] stack backtrace: [ 23.913960][ T357] CPU: 1 UID: 0 PID: 357 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 23.913965][ T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 23.913968][ T357] Call Trace: [ 23.913970][ T357] [ 23.913973][ T357] dump_stack_lvl+0xb0/0xd0 [ 23.913982][ T357] lockdep_rcu_suspicious+0x1ea/0x280 [ 23.913994][ T357] dev_hard_start_xmit+0x2fc/0x3f0 [ 23.914004][ T357] __dev_queue_xmit+0xfaf/0x18d0 [ 23.914019][ T357] ? __pfx___dev_queue_xmit+0x10/0x10 [ 23.914023][ T357] ? packet_parse_headers+0x231/0x9c0 [ 23.914036][ T357] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 23.914043][ T357] ? __pfx_packet_parse_headers+0x10/0x10 [ 23.914048][ T357] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 23.914054][ T357] ? dev_get_by_index+0xb2/0x190 [ 23.914066][ T357] packet_snd+0xd0c/0x19d0 [ 23.914077][ T357] ? __lock_release+0x103/0x460 [ 23.914082][ T357] ? __might_fault+0x11b/0x170 [ 23.914090][ T357] ? __pfx_packet_snd+0x10/0x10 [ 23.914092][ T357] ? trace_lock_acquire+0x14c/0x1f0 [ 23.914095][ T357] ? __might_fault+0x11b/0x170 [ 23.914102][ T357] ? lock_acquire+0x32/0xc0 [ 23.914108][ T357] ? __might_fault+0x11b/0x170 [ 23.914120][ T357] __sys_sendto+0x3c3/0x450 [ 23.914126][ T357] ? __pfx___sys_sendto+0x10/0x10 [ 23.914141][ T357] ? sock_ioctl+0x3b6/0x590 [ 23.914151][ T357] ? __pfx___up_read+0x10/0x10 [ 23.914161][ T357] ? do_user_addr_fault+0x374/0xe30 [ 23.914172][ T357] ? do_user_addr_fault+0x374/0xe30 [ 23.914180][ T357] __x64_sys_sendto+0xe0/0x1c0 [ 23.914184][ T357] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 23.914189][ T357] do_syscall_64+0xc1/0x1d0 [ 23.914198][ T357] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 23.914204][ T357] RIP: 0033:0x7fbb4ff49a4a [ 23.914210][ T357] 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 [ 23.914214][ T357] RSP: 002b:00007ffcda0911f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 23.914217][ T357] RAX: ffffffffffffffda RBX: 0000000025aac9d0 RCX: 00007fbb4ff49a4a [ 23.914220][ T357] RDX: 0000000000000062 RSI: 0000000025aac5c2 RDI: 0000000000000005 [ 23.914222][ T357] RBP: 0000000025aac5c2 R08: 00007ffcda091200 R09: 0000000000000014 [ 23.914224][ T357] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 23.914226][ T357] R13: 0000000000000062 R14: 00007ffcda091200 R15: 0000000000000000 [ 23.914242][ T357] [ 49.992754][ T384] veth0: left promiscuous mode [ 50.315291][ T396] veth3: entered promiscuous mode [ 52.257102][ T405] veth3: left promiscuous mode [ 52.418709][ T407] veth3: entered promiscuous mode [ 54.330318][ T416] veth3: left promiscuous mode [ 54.505367][ T419] veth3: entered promiscuous mode [ 56.356980][ T428] veth3: left promiscuous mode [ 56.525848][ T430] veth3: entered promiscuous mode [ 58.450503][ T439] veth3: left promiscuous mode [ 63.794406][ T477] br0: port 2(veth2) entered disabled state [ 63.913166][ T478] br0: port 1(veth1) entered disabled state [ 64.050163][ T479] veth2: left allmulticast mode [ 64.050428][ T479] veth2: left promiscuous mode [ 64.050855][ T479] br0: port 2(veth2) entered disabled state [ 64.052966][ T479] veth1: left allmulticast mode [ 64.053596][ T479] veth1: left promiscuous mode [ 64.054151][ T479] br0: port 1(veth1) entered disabled state