[ 12.337202][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 15.306588][ T378] GACT probability NOT on [ 15.919950][ T388] ip (388) used greatest stack depth: 24320 bytes left [ 16.625881][ T414] br10: port 1(veth1.10) entered blocking state [ 16.626371][ T414] br10: port 1(veth1.10) entered disabled state [ 16.626758][ T414] veth1.10: entered allmulticast mode [ 16.626980][ T414] veth1: entered allmulticast mode [ 16.629034][ T414] veth1.10: entered promiscuous mode [ 16.629269][ T414] veth1: entered promiscuous mode [ 17.064547][ T431] br11: port 1(veth1.11) entered blocking state [ 17.065062][ T431] br11: port 1(veth1.11) entered disabled state [ 17.066199][ T431] veth1.11: entered allmulticast mode [ 17.068038][ T431] veth1.11: entered promiscuous mode [ 17.853519][ T461] br10: port 2(veth2.10) entered blocking state [ 17.853828][ T461] br10: port 2(veth2.10) entered disabled state [ 17.854104][ T461] veth2.10: entered allmulticast mode [ 17.854319][ T461] veth2: entered allmulticast mode [ 17.856186][ T461] veth2.10: entered promiscuous mode [ 17.856399][ T461] veth2: entered promiscuous mode [ 18.303677][ T478] br11: port 2(veth2.11) entered blocking state [ 18.303956][ T478] br11: port 2(veth2.11) entered disabled state [ 18.304247][ T478] veth2.11: entered allmulticast mode [ 18.306577][ T478] veth2.11: entered promiscuous mode [ 18.700025][ T490] br10: port 2(veth2.10) entered blocking state [ 18.700457][ T490] br10: port 2(veth2.10) entered forwarding state [ 18.701214][ T490] br10: port 1(veth1.10) entered blocking state [ 18.701484][ T490] br10: port 1(veth1.10) entered forwarding state [ 18.823449][ T495] br11: port 2(veth2.11) entered blocking state [ 18.823775][ T495] br11: port 2(veth2.11) entered forwarding state [ 18.824252][ T495] br11: port 1(veth1.11) entered blocking state [ 18.824512][ T495] br11: port 1(veth1.11) entered forwarding state [ 27.784363][ T549] [ 27.784589][ T549] ============================= [ 27.784753][ T549] WARNING: suspicious RCU usage [ 27.784905][ T549] 6.14.0-rc6-virtme #1 Not tainted [ 27.785230][ T549] ----------------------------- [ 27.785383][ T549] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.785647][ T549] [ 27.785647][ T549] other info that might help us debug this: [ 27.785647][ T549] [ 27.785955][ T549] [ 27.785955][ T549] rcu_scheduler_active = 2, debug_locks = 1 [ 27.786193][ T549] 1 lock held by mausezahn/549: [ 27.786349][ T549] #0: ffffffff86f5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 27.786629][ T549] [ 27.786629][ T549] stack backtrace: [ 27.786821][ T549] CPU: 1 UID: 0 PID: 549 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 27.786825][ T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.786827][ T549] Call Trace: [ 27.786829][ T549] [ 27.786831][ T549] dump_stack_lvl+0xb0/0xd0 [ 27.786838][ T549] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.786849][ T549] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.786859][ T549] __dev_queue_xmit+0xfaf/0x18d0 [ 27.786864][ T549] ? __pfx__copy_from_iter+0x10/0x10 [ 27.786872][ T549] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 27.786884][ T549] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.786888][ T549] ? packet_parse_headers+0x231/0x9c0 [ 27.786896][ T549] ? copy_page_from_iter+0xbd/0x120 [ 27.786901][ T549] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.786906][ T549] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 27.786920][ T549] packet_snd+0xd0c/0x19d0 [ 27.786932][ T549] ? __lock_release+0x103/0x460 [ 27.786935][ T549] ? __might_fault+0x11b/0x170 [ 27.786942][ T549] ? __pfx_packet_snd+0x10/0x10 [ 27.786944][ T549] ? trace_lock_acquire+0x14c/0x1f0 [ 27.786946][ T549] ? __might_fault+0x11b/0x170 [ 27.786953][ T549] ? lock_acquire+0x32/0xc0 [ 27.786960][ T549] ? __might_fault+0x11b/0x170 [ 27.786970][ T549] __sys_sendto+0x3c3/0x450 [ 27.786976][ T549] ? __pfx___sys_sendto+0x10/0x10 [ 27.786991][ T549] ? sock_ioctl+0x3b6/0x590 [ 27.786995][ T549] ? __pfx___lock_release+0x10/0x10 [ 27.787003][ T549] ? __pfx___up_read+0x10/0x10 [ 27.787012][ T549] ? do_user_addr_fault+0x972/0xe30 [ 27.787020][ T549] ? do_user_addr_fault+0x97c/0xe30 [ 27.787026][ T549] __x64_sys_sendto+0xe0/0x1c0 [ 27.787030][ T549] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.787035][ T549] do_syscall_64+0xc1/0x1d0 [ 27.787042][ T549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.787046][ T549] RIP: 0033:0x7f8d4b93ca4a [ 27.787051][ T549] 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 [ 27.787054][ T549] RSP: 002b:00007ffebd3b59f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.787057][ T549] RAX: ffffffffffffffda RBX: 0000000035af59d0 RCX: 00007f8d4b93ca4a [ 27.787059][ T549] RDX: 0000000000001f6a RSI: 0000000035af88e2 RDI: 0000000000000005 [ 27.787061][ T549] RBP: 0000000035af88e2 R08: 00007ffebd3b5a00 R09: 0000000000000014 [ 27.787063][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 27.787064][ T549] R13: 0000000000001f6a R14: 00007ffebd3b5a00 R15: 0000000000000000 [ 27.787080][ T549] [ 99.319908][ T838] br11: port 2(veth2.11) entered disabled state [ 99.321018][ T838] br11: port 1(veth1.11) entered disabled state [ 99.414896][ T840] br10: port 2(veth2.10) entered disabled state [ 99.415537][ T840] br10: port 1(veth1.10) entered disabled state [ 99.590939][ T844] veth2.11: left allmulticast mode [ 99.591192][ T844] veth2.11: left promiscuous mode [ 99.591722][ T844] br11: port 2(veth2.11) entered disabled state [ 99.600637][ T844] ip (844) used greatest stack depth: 23912 bytes left [ 99.897485][ T852] veth2.10: left allmulticast mode [ 99.897833][ T852] veth2: left allmulticast mode [ 99.898165][ T852] veth2.10: left promiscuous mode [ 99.899302][ T852] veth2: left promiscuous mode [ 99.900099][ T852] br10: port 2(veth2.10) entered disabled state [ 100.385289][ T862] veth1.11: left allmulticast mode [ 100.385522][ T862] veth1.11: left promiscuous mode [ 100.386011][ T862] br11: port 1(veth1.11) entered disabled state [ 100.672700][ T868] veth1.10: left allmulticast mode [ 100.672934][ T868] veth1: left allmulticast mode [ 100.673138][ T868] veth1.10: left promiscuous mode [ 100.673346][ T868] veth1: left promiscuous mode [ 100.673853][ T868] br10: port 1(veth1.10) entered disabled state