[ 13.429652][ T309] 8021q: 802.1Q VLAN Support v1.8 [ 16.683983][ T379] GACT probability NOT on [ 18.034701][ T414] br10: port 1(veth1.10) entered blocking state [ 18.035583][ T414] br10: port 1(veth1.10) entered disabled state [ 18.037738][ T414] veth1.10: entered allmulticast mode [ 18.038125][ T414] veth1: entered allmulticast mode [ 18.040111][ T414] veth1.10: entered promiscuous mode [ 18.040300][ T414] veth1: entered promiscuous mode [ 18.484126][ T431] br11: port 1(veth1.11) entered blocking state [ 18.484576][ T431] br11: port 1(veth1.11) entered disabled state [ 18.485687][ T431] veth1.11: entered allmulticast mode [ 18.489312][ T431] veth1.11: entered promiscuous mode [ 19.361994][ T461] br10: port 2(veth2.10) entered blocking state [ 19.362278][ T461] br10: port 2(veth2.10) entered disabled state [ 19.362541][ T461] veth2.10: entered allmulticast mode [ 19.362721][ T461] veth2: entered allmulticast mode [ 19.365056][ T461] veth2.10: entered promiscuous mode [ 19.365257][ T461] veth2: entered promiscuous mode [ 19.819113][ T478] br11: port 2(veth2.11) entered blocking state [ 19.819393][ T478] br11: port 2(veth2.11) entered disabled state [ 19.819658][ T478] veth2.11: entered allmulticast mode [ 19.821596][ T478] veth2.11: entered promiscuous mode [ 20.211138][ T490] br10: port 2(veth2.10) entered blocking state [ 20.211561][ T490] br10: port 2(veth2.10) entered forwarding state [ 20.212275][ T490] br10: port 1(veth1.10) entered blocking state [ 20.212544][ T490] br10: port 1(veth1.10) entered forwarding state [ 20.330060][ T495] br11: port 2(veth2.11) entered blocking state [ 20.330374][ T495] br11: port 2(veth2.11) entered forwarding state [ 20.330841][ T495] br11: port 1(veth1.11) entered blocking state [ 20.331135][ T495] br11: port 1(veth1.11) entered forwarding state [ 29.070059][ T546] [ 29.070350][ T546] ============================= [ 29.070536][ T546] WARNING: suspicious RCU usage [ 29.070753][ T546] 6.14.0-rc6-virtme #1 Not tainted [ 29.070955][ T546] ----------------------------- [ 29.071138][ T546] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 29.071479][ T546] [ 29.071479][ T546] other info that might help us debug this: [ 29.071479][ T546] [ 29.071824][ T546] [ 29.071824][ T546] rcu_scheduler_active = 2, debug_locks = 1 [ 29.072098][ T546] 1 lock held by mausezahn/546: [ 29.072282][ T546] #0: ffffffffa9b5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 29.072613][ T546] [ 29.072613][ T546] stack backtrace: [ 29.072840][ T546] CPU: 3 UID: 0 PID: 546 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 29.072844][ T546] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.072846][ T546] Call Trace: [ 29.072848][ T546] [ 29.072850][ T546] dump_stack_lvl+0xb0/0xd0 [ 29.072859][ T546] lockdep_rcu_suspicious+0x1ea/0x280 [ 29.072875][ T546] dev_hard_start_xmit+0x2fc/0x3f0 [ 29.072887][ T546] __dev_queue_xmit+0xfaf/0x18d0 [ 29.072893][ T546] ? __pfx__copy_from_iter+0x10/0x10 [ 29.072903][ T546] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 29.072916][ T546] ? __pfx___dev_queue_xmit+0x10/0x10 [ 29.072920][ T546] ? packet_parse_headers+0x231/0x9c0 [ 29.072928][ T546] ? copy_page_from_iter+0xbd/0x120 [ 29.072933][ T546] ? __pfx_packet_parse_headers+0x10/0x10 [ 29.072937][ T546] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 29.072952][ T546] packet_snd+0xd0c/0x19d0 [ 29.072963][ T546] ? __lock_release+0x103/0x460 [ 29.072967][ T546] ? __might_fault+0x11b/0x170 [ 29.072974][ T546] ? __pfx_packet_snd+0x10/0x10 [ 29.072977][ T546] ? trace_lock_acquire+0x14c/0x1f0 [ 29.072979][ T546] ? __might_fault+0x11b/0x170 [ 29.072986][ T546] ? lock_acquire+0x32/0xc0 [ 29.072993][ T546] ? __might_fault+0x11b/0x170 [ 29.073003][ T546] __sys_sendto+0x3c3/0x450 [ 29.073009][ T546] ? __pfx___sys_sendto+0x10/0x10 [ 29.073024][ T546] ? sock_ioctl+0x3b6/0x590 [ 29.073029][ T546] ? __pfx___lock_release+0x10/0x10 [ 29.073036][ T546] ? __pfx___up_read+0x10/0x10 [ 29.073046][ T546] ? do_user_addr_fault+0x972/0xe30 [ 29.073054][ T546] ? do_user_addr_fault+0x97c/0xe30 [ 29.073061][ T546] __x64_sys_sendto+0xe0/0x1c0 [ 29.073064][ T546] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 29.073069][ T546] do_syscall_64+0xc1/0x1d0 [ 29.073076][ T546] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.073081][ T546] RIP: 0033:0x7f95f9f57a4a [ 29.073085][ T546] 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 [ 29.073088][ T546] RSP: 002b:00007ffc924f4238 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 29.073091][ T546] RAX: ffffffffffffffda RBX: 000000000291a9d0 RCX: 00007f95f9f57a4a [ 29.073093][ T546] RDX: 0000000000001f6a RSI: 000000000291d8e2 RDI: 0000000000000005 [ 29.073095][ T546] RBP: 000000000291d8e2 R08: 00007ffc924f4240 R09: 0000000000000014 [ 29.073097][ T546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.073098][ T546] R13: 0000000000001f6a R14: 00007ffc924f4240 R15: 0000000000000000 [ 29.073114][ T546] [ 47.064625][ T621] br11: port 2(veth2.11) entered disabled state [ 47.065944][ T621] br11: port 1(veth1.11) entered disabled state [ 47.167535][ T623] br10: port 2(veth2.10) entered disabled state [ 47.168267][ T623] br10: port 1(veth1.10) entered disabled state [ 47.421147][ T627] veth2.11: left allmulticast mode [ 47.421460][ T627] veth2.11: left promiscuous mode [ 47.422415][ T627] br11: port 2(veth2.11) entered disabled state [ 47.781578][ T635] veth2.10: left allmulticast mode [ 47.781834][ T635] veth2: left allmulticast mode [ 47.782069][ T635] veth2.10: left promiscuous mode [ 47.782261][ T635] veth2: left promiscuous mode [ 47.782787][ T635] br10: port 2(veth2.10) entered disabled state [ 48.406648][ T645] veth1.11: left allmulticast mode [ 48.407058][ T645] veth1.11: left promiscuous mode [ 48.407892][ T645] br11: port 1(veth1.11) entered disabled state [ 48.791956][ T651] veth1.10: left allmulticast mode [ 48.792215][ T651] veth1: left allmulticast mode [ 48.792424][ T651] veth1.10: left promiscuous mode [ 48.792633][ T651] veth1: left promiscuous mode [ 48.793269][ T651] br10: port 1(veth1.10) entered disabled state