[ 13.472959][ T309] 8021q: 802.1Q VLAN Support v1.8 [ 16.741250][ T379] GACT probability NOT on [ 18.065285][ T414] br10: port 1(veth1.10) entered blocking state [ 18.065802][ T414] br10: port 1(veth1.10) entered disabled state [ 18.066247][ T414] veth1.10: entered allmulticast mode [ 18.066486][ T414] veth1: entered allmulticast mode [ 18.068588][ T414] veth1.10: entered promiscuous mode [ 18.068823][ T414] veth1: entered promiscuous mode [ 18.078093][ T414] ip (414) used greatest stack depth: 23840 bytes left [ 18.544238][ T431] br11: port 1(veth1.11) entered blocking state [ 18.544551][ T431] br11: port 1(veth1.11) entered disabled state [ 18.544829][ T431] veth1.11: entered allmulticast mode [ 18.547408][ T431] veth1.11: entered promiscuous mode [ 19.438122][ T461] br10: port 2(veth2.10) entered blocking state [ 19.438467][ T461] br10: port 2(veth2.10) entered disabled state [ 19.438764][ T461] veth2.10: entered allmulticast mode [ 19.439025][ T461] veth2: entered allmulticast mode [ 19.441201][ T461] veth2.10: entered promiscuous mode [ 19.441449][ T461] veth2: entered promiscuous mode [ 19.907085][ T478] br11: port 2(veth2.11) entered blocking state [ 19.907426][ T478] br11: port 2(veth2.11) entered disabled state [ 19.907727][ T478] veth2.11: entered allmulticast mode [ 19.916761][ T478] veth2.11: entered promiscuous mode [ 20.330909][ T490] br10: port 2(veth2.10) entered blocking state [ 20.331364][ T490] br10: port 2(veth2.10) entered forwarding state [ 20.332066][ T490] br10: port 1(veth1.10) entered blocking state [ 20.332332][ T490] br10: port 1(veth1.10) entered forwarding state [ 20.456996][ T495] br11: port 2(veth2.11) entered blocking state [ 20.457497][ T495] br11: port 2(veth2.11) entered forwarding state [ 20.458281][ T495] br11: port 1(veth1.11) entered blocking state [ 20.458712][ T495] br11: port 1(veth1.11) entered forwarding state [ 29.580555][ T549] [ 29.580877][ T549] ============================= [ 29.581058][ T549] WARNING: suspicious RCU usage [ 29.581276][ T549] 6.14.0-rc6-virtme #1 Not tainted [ 29.581454][ T549] ----------------------------- [ 29.581621][ T549] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 29.582213][ T549] [ 29.582213][ T549] other info that might help us debug this: [ 29.582213][ T549] [ 29.582545][ T549] [ 29.582545][ T549] rcu_scheduler_active = 2, debug_locks = 1 [ 29.582811][ T549] 1 lock held by mausezahn/549: [ 29.582982][ T549] #0: ffffffffba75b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 29.583311][ T549] [ 29.583311][ T549] stack backtrace: [ 29.583523][ T549] CPU: 3 UID: 0 PID: 549 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 29.583529][ T549] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 29.583533][ T549] Call Trace: [ 29.583536][ T549] [ 29.583540][ T549] dump_stack_lvl+0xb0/0xd0 [ 29.583553][ T549] lockdep_rcu_suspicious+0x1ea/0x280 [ 29.583570][ T549] dev_hard_start_xmit+0x2fc/0x3f0 [ 29.583589][ T549] __dev_queue_xmit+0xfaf/0x18d0 [ 29.583595][ T549] ? __pfx__copy_from_iter+0x10/0x10 [ 29.583606][ T549] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 29.583619][ T549] ? __pfx___dev_queue_xmit+0x10/0x10 [ 29.583624][ T549] ? packet_parse_headers+0x231/0x9c0 [ 29.583633][ T549] ? copy_page_from_iter+0xbd/0x120 [ 29.583638][ T549] ? __pfx_packet_parse_headers+0x10/0x10 [ 29.583642][ T549] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 29.583658][ T549] packet_snd+0xd0c/0x19d0 [ 29.583670][ T549] ? __lock_release+0x103/0x460 [ 29.583674][ T549] ? __might_fault+0x11b/0x170 [ 29.583682][ T549] ? __pfx_packet_snd+0x10/0x10 [ 29.583684][ T549] ? trace_lock_acquire+0x14c/0x1f0 [ 29.583686][ T549] ? __might_fault+0x11b/0x170 [ 29.583693][ T549] ? lock_acquire+0x32/0xc0 [ 29.583700][ T549] ? __might_fault+0x11b/0x170 [ 29.583710][ T549] __sys_sendto+0x3c3/0x450 [ 29.583717][ T549] ? __pfx___sys_sendto+0x10/0x10 [ 29.583731][ T549] ? sock_ioctl+0x3b6/0x590 [ 29.583736][ T549] ? __pfx___lock_release+0x10/0x10 [ 29.583744][ T549] ? __pfx___up_read+0x10/0x10 [ 29.583754][ T549] ? do_user_addr_fault+0x972/0xe30 [ 29.583763][ T549] ? do_user_addr_fault+0x97c/0xe30 [ 29.583770][ T549] __x64_sys_sendto+0xe0/0x1c0 [ 29.583774][ T549] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 29.583779][ T549] do_syscall_64+0xc1/0x1d0 [ 29.583788][ T549] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 29.583794][ T549] RIP: 0033:0x7f8e0bf2aa4a [ 29.583799][ 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 [ 29.583802][ T549] RSP: 002b:00007ffdfa957108 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 29.583806][ T549] RAX: ffffffffffffffda RBX: 000000003be109d0 RCX: 00007f8e0bf2aa4a [ 29.583808][ T549] RDX: 0000000000001f6a RSI: 000000003be138e2 RDI: 0000000000000005 [ 29.583810][ T549] RBP: 000000003be138e2 R08: 00007ffdfa957110 R09: 0000000000000014 [ 29.583812][ T549] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 29.583813][ T549] R13: 0000000000001f6a R14: 00007ffdfa957110 R15: 0000000000000000 [ 29.583829][ T549] [ 100.900279][ T838] br11: port 2(veth2.11) entered disabled state [ 100.901079][ T838] br11: port 1(veth1.11) entered disabled state [ 101.005251][ T840] br10: port 2(veth2.10) entered disabled state [ 101.006164][ T840] br10: port 1(veth1.10) entered disabled state [ 101.186505][ T844] veth2.11: left allmulticast mode [ 101.186751][ T844] veth2.11: left promiscuous mode [ 101.187268][ T844] br11: port 2(veth2.11) entered disabled state [ 101.514157][ T852] veth2.10: left allmulticast mode [ 101.514395][ T852] veth2: left allmulticast mode [ 101.514601][ T852] veth2.10: left promiscuous mode [ 101.514790][ T852] veth2: left promiscuous mode [ 101.515459][ T852] br10: port 2(veth2.10) entered disabled state [ 102.067610][ T862] veth1.11: left allmulticast mode [ 102.067843][ T862] veth1.11: left promiscuous mode [ 102.068354][ T862] br11: port 1(veth1.11) entered disabled state [ 102.342472][ T868] veth1.10: left allmulticast mode [ 102.342704][ T868] veth1: left allmulticast mode [ 102.342895][ T868] veth1.10: left promiscuous mode [ 102.343068][ T868] veth1: left promiscuous mode [ 102.343562][ T868] br10: port 1(veth1.10) entered disabled state