[ 12.410759][ T309] 8021q: 802.1Q VLAN Support v1.8 [ 15.410037][ T379] GACT probability NOT on [ 16.676065][ T414] br10: port 1(veth1.10) entered blocking state [ 16.676513][ T414] br10: port 1(veth1.10) entered disabled state [ 16.676911][ T414] veth1.10: entered allmulticast mode [ 16.677413][ T414] veth1: entered allmulticast mode [ 16.679587][ T414] veth1.10: entered promiscuous mode [ 16.679815][ T414] veth1: entered promiscuous mode [ 16.696784][ T414] ip (414) used greatest stack depth: 24240 bytes left [ 17.138777][ T431] br11: port 1(veth1.11) entered blocking state [ 17.139073][ T431] br11: port 1(veth1.11) entered disabled state [ 17.139343][ T431] veth1.11: entered allmulticast mode [ 17.141224][ T431] veth1.11: entered promiscuous mode [ 17.926854][ T461] br10: port 2(veth2.10) entered blocking state [ 17.927179][ T461] br10: port 2(veth2.10) entered disabled state [ 17.927502][ T461] veth2.10: entered allmulticast mode [ 17.927700][ T461] veth2: entered allmulticast mode [ 17.929648][ T461] veth2.10: entered promiscuous mode [ 17.929867][ T461] veth2: entered promiscuous mode [ 18.390393][ T478] br11: port 2(veth2.11) entered blocking state [ 18.390686][ T478] br11: port 2(veth2.11) entered disabled state [ 18.390978][ T478] veth2.11: entered allmulticast mode [ 18.394282][ T478] veth2.11: entered promiscuous mode [ 18.755934][ T490] br10: port 2(veth2.10) entered blocking state [ 18.756429][ T490] br10: port 2(veth2.10) entered forwarding state [ 18.757300][ T490] br10: port 1(veth1.10) entered blocking state [ 18.757789][ T490] br10: port 1(veth1.10) entered forwarding state [ 18.766930][ T490] ip (490) used greatest stack depth: 23448 bytes left [ 18.874665][ T495] br11: port 2(veth2.11) entered blocking state [ 18.874981][ T495] br11: port 2(veth2.11) entered forwarding state [ 18.875462][ T495] br11: port 1(veth1.11) entered blocking state [ 18.875730][ T495] br11: port 1(veth1.11) entered forwarding state [ 27.718387][ T549] [ 27.718760][ T549] ============================= [ 27.718919][ T549] WARNING: suspicious RCU usage [ 27.719095][ T549] 6.14.0-rc6-virtme #1 Not tainted [ 27.719248][ T549] ----------------------------- [ 27.719415][ T549] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.719691][ T549] [ 27.719691][ T549] other info that might help us debug this: [ 27.719691][ T549] [ 27.719981][ T549] [ 27.719981][ T549] rcu_scheduler_active = 2, debug_locks = 1 [ 27.720219][ T549] 1 lock held by mausezahn/549: [ 27.720391][ T549] #0: ffffffff9475b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 27.720673][ T549] [ 27.720673][ T549] stack backtrace: [ 27.720864][ T549] CPU: 0 UID: 0 PID: 549 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 27.720868][ T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.720870][ T549] Call Trace: [ 27.720872][ T549] [ 27.720875][ T549] dump_stack_lvl+0xb0/0xd0 [ 27.720883][ T549] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.720893][ T549] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.720903][ T549] __dev_queue_xmit+0xfaf/0x18d0 [ 27.720908][ T549] ? __pfx__copy_from_iter+0x10/0x10 [ 27.720917][ T549] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 27.720929][ T549] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.720933][ T549] ? packet_parse_headers+0x231/0x9c0 [ 27.720941][ T549] ? copy_page_from_iter+0xbd/0x120 [ 27.720946][ T549] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.720950][ T549] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 27.720964][ T549] packet_snd+0xd0c/0x19d0 [ 27.720976][ T549] ? __lock_release+0x103/0x460 [ 27.720979][ T549] ? __might_fault+0x11b/0x170 [ 27.720986][ T549] ? __pfx_packet_snd+0x10/0x10 [ 27.720988][ T549] ? trace_lock_acquire+0x14c/0x1f0 [ 27.720991][ T549] ? __might_fault+0x11b/0x170 [ 27.720998][ T549] ? lock_acquire+0x32/0xc0 [ 27.721004][ T549] ? __might_fault+0x11b/0x170 [ 27.721015][ T549] __sys_sendto+0x3c3/0x450 [ 27.721021][ T549] ? __pfx___sys_sendto+0x10/0x10 [ 27.721035][ T549] ? sock_ioctl+0x3b6/0x590 [ 27.721039][ T549] ? __pfx___lock_release+0x10/0x10 [ 27.721049][ T549] ? __pfx___up_read+0x10/0x10 [ 27.721058][ T549] ? do_user_addr_fault+0x972/0xe30 [ 27.721067][ T549] ? do_user_addr_fault+0x97c/0xe30 [ 27.721073][ T549] __x64_sys_sendto+0xe0/0x1c0 [ 27.721077][ T549] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.721082][ T549] do_syscall_64+0xc1/0x1d0 [ 27.721089][ T549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.721094][ T549] RIP: 0033:0x7f128a3d2a4a [ 27.721098][ 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 [ 27.721101][ T549] RSP: 002b:00007ffd2bf993f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.721104][ T549] RAX: ffffffffffffffda RBX: 000000000cb879d0 RCX: 00007f128a3d2a4a [ 27.721106][ T549] RDX: 0000000000001f6a RSI: 000000000cb8a8e2 RDI: 0000000000000005 [ 27.721108][ T549] RBP: 000000000cb8a8e2 R08: 00007ffd2bf99400 R09: 0000000000000014 [ 27.721110][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 27.721111][ T549] R13: 0000000000001f6a R14: 00007ffd2bf99400 R15: 0000000000000000 [ 27.721127][ T549] [ 99.083488][ T839] br11: port 2(veth2.11) entered disabled state [ 99.084138][ T839] br11: port 1(veth1.11) entered disabled state [ 99.172424][ T841] br10: port 2(veth2.10) entered disabled state [ 99.173392][ T841] br10: port 1(veth1.10) entered disabled state [ 99.339857][ T845] veth2.11: left allmulticast mode [ 99.340596][ T845] veth2.11: left promiscuous mode [ 99.341157][ T845] br11: port 2(veth2.11) entered disabled state [ 99.623937][ T853] veth2.10: left allmulticast mode [ 99.624182][ T853] veth2: left allmulticast mode [ 99.624387][ T853] veth2.10: left promiscuous mode [ 99.624562][ T853] veth2: left promiscuous mode [ 99.625057][ T853] br10: port 2(veth2.10) entered disabled state [ 100.089871][ T863] veth1.11: left allmulticast mode [ 100.090111][ T863] veth1.11: left promiscuous mode [ 100.090591][ T863] br11: port 1(veth1.11) entered disabled state [ 100.375112][ T869] veth1.10: left allmulticast mode [ 100.375328][ T869] veth1: left allmulticast mode [ 100.375519][ T869] veth1.10: left promiscuous mode [ 100.375699][ T869] veth1: left promiscuous mode [ 100.376186][ T869] br10: port 1(veth1.10) entered disabled state