[ 12.559398][ T309] 8021q: 802.1Q VLAN Support v1.8 [ 15.564980][ T379] GACT probability NOT on [ 16.782261][ T414] br10: port 1(veth1.10) entered blocking state [ 16.782673][ T414] br10: port 1(veth1.10) entered disabled state [ 16.783049][ T414] veth1.10: entered allmulticast mode [ 16.783252][ T414] veth1: entered allmulticast mode [ 16.785938][ T414] veth1.10: entered promiscuous mode [ 16.786152][ T414] veth1: entered promiscuous mode [ 17.275205][ T431] br11: port 1(veth1.11) entered blocking state [ 17.275591][ T431] br11: port 1(veth1.11) entered disabled state [ 17.275881][ T431] veth1.11: entered allmulticast mode [ 17.278394][ T431] veth1.11: entered promiscuous mode [ 17.995868][ T461] br10: port 2(veth2.10) entered blocking state [ 17.996750][ T461] br10: port 2(veth2.10) entered disabled state [ 17.997496][ T461] veth2.10: entered allmulticast mode [ 17.997673][ T461] veth2: entered allmulticast mode [ 17.999622][ T461] veth2.10: entered promiscuous mode [ 17.999808][ T461] veth2: entered promiscuous mode [ 18.485406][ T478] br11: port 2(veth2.11) entered blocking state [ 18.485792][ T478] br11: port 2(veth2.11) entered disabled state [ 18.486104][ T478] veth2.11: entered allmulticast mode [ 18.488023][ T478] veth2.11: entered promiscuous mode [ 18.861034][ T490] br10: port 2(veth2.10) entered blocking state [ 18.861442][ T490] br10: port 2(veth2.10) entered forwarding state [ 18.862143][ T490] br10: port 1(veth1.10) entered blocking state [ 18.862392][ T490] br10: port 1(veth1.10) entered forwarding state [ 18.978485][ T495] br11: port 2(veth2.11) entered blocking state [ 18.978806][ T495] br11: port 2(veth2.11) entered forwarding state [ 18.979283][ T495] br11: port 1(veth1.11) entered blocking state [ 18.979553][ T495] br11: port 1(veth1.11) entered forwarding state [ 27.909132][ T549] [ 27.909419][ T549] ============================= [ 27.909613][ T549] WARNING: suspicious RCU usage [ 27.909799][ T549] 6.14.0-rc6-virtme #1 Not tainted [ 27.909987][ T549] ----------------------------- [ 27.910352][ T549] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.910632][ T549] [ 27.910632][ T549] other info that might help us debug this: [ 27.910632][ T549] [ 27.910939][ T549] [ 27.910939][ T549] rcu_scheduler_active = 2, debug_locks = 1 [ 27.911186][ T549] 1 lock held by mausezahn/549: [ 27.911359][ T549] #0: ffffffff8af5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 27.911656][ T549] [ 27.911656][ T549] stack backtrace: [ 27.911853][ T549] CPU: 2 UID: 0 PID: 549 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 27.911857][ T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.911859][ T549] Call Trace: [ 27.911861][ T549] [ 27.911864][ T549] dump_stack_lvl+0xb0/0xd0 [ 27.911870][ T549] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.911881][ T549] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.911891][ T549] __dev_queue_xmit+0xfaf/0x18d0 [ 27.911897][ T549] ? __pfx__copy_from_iter+0x10/0x10 [ 27.911905][ T549] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 27.911917][ T549] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.911921][ T549] ? packet_parse_headers+0x231/0x9c0 [ 27.911929][ T549] ? copy_page_from_iter+0xbd/0x120 [ 27.911934][ T549] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.911939][ T549] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 27.911953][ T549] packet_snd+0xd0c/0x19d0 [ 27.911964][ T549] ? __lock_release+0x103/0x460 [ 27.911968][ T549] ? __might_fault+0x11b/0x170 [ 27.911975][ T549] ? __pfx_packet_snd+0x10/0x10 [ 27.911977][ T549] ? trace_lock_acquire+0x14c/0x1f0 [ 27.911979][ T549] ? __might_fault+0x11b/0x170 [ 27.911986][ T549] ? lock_acquire+0x32/0xc0 [ 27.911992][ T549] ? __might_fault+0x11b/0x170 [ 27.912003][ T549] __sys_sendto+0x3c3/0x450 [ 27.912009][ T549] ? __pfx___sys_sendto+0x10/0x10 [ 27.912024][ T549] ? sock_ioctl+0x3b6/0x590 [ 27.912027][ T549] ? __pfx___lock_release+0x10/0x10 [ 27.912035][ T549] ? __pfx___up_read+0x10/0x10 [ 27.912043][ T549] ? do_user_addr_fault+0x972/0xe30 [ 27.912052][ T549] ? do_user_addr_fault+0x97c/0xe30 [ 27.912061][ T549] __x64_sys_sendto+0xe0/0x1c0 [ 27.912065][ T549] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.912070][ T549] do_syscall_64+0xc1/0x1d0 [ 27.912077][ T549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.912082][ T549] RIP: 0033:0x7f3e3bdaca4a [ 27.912086][ 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 [ 27.912089][ T549] RSP: 002b:00007fff04be4348 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.912093][ T549] RAX: ffffffffffffffda RBX: 00000000008cb9d0 RCX: 00007f3e3bdaca4a [ 27.912095][ T549] RDX: 0000000000001f6a RSI: 00000000008ce8e2 RDI: 0000000000000005 [ 27.912097][ T549] RBP: 00000000008ce8e2 R08: 00007fff04be4350 R09: 0000000000000014 [ 27.912098][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 27.912100][ T549] R13: 0000000000001f6a R14: 00007fff04be4350 R15: 0000000000000000 [ 27.912116][ T549] [ 99.599087][ T838] br11: port 2(veth2.11) entered disabled state [ 99.600244][ T838] br11: port 1(veth1.11) entered disabled state [ 99.706133][ T840] br10: port 2(veth2.10) entered disabled state [ 99.706725][ T840] br10: port 1(veth1.10) entered disabled state [ 99.884036][ T844] veth2.11: left allmulticast mode [ 99.884331][ T844] veth2.11: left promiscuous mode [ 99.884858][ T844] br11: port 2(veth2.11) entered disabled state [ 100.188892][ T852] veth2.10: left allmulticast mode [ 100.189153][ T852] veth2: left allmulticast mode [ 100.189358][ T852] veth2.10: left promiscuous mode [ 100.189531][ T852] veth2: left promiscuous mode [ 100.190025][ T852] br10: port 2(veth2.10) entered disabled state [ 100.676369][ T863] veth1.11: left allmulticast mode [ 100.676599][ T863] veth1.11: left promiscuous mode [ 100.677112][ T863] br11: port 1(veth1.11) entered disabled state [ 100.975652][ T869] veth1.10: left allmulticast mode [ 100.975887][ T869] veth1: left allmulticast mode [ 100.976430][ T869] veth1.10: left promiscuous mode [ 100.976610][ T869] veth1: left promiscuous mode [ 100.977117][ T869] br10: port 1(veth1.10) entered disabled state