[ 12.705847][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 13.214492][ T319] ip (319) used greatest stack depth: 23856 bytes left [ 15.746444][ T379] GACT probability NOT on [ 17.089928][ T416] br10: port 1(veth1.10) entered blocking state [ 17.091249][ T416] br10: port 1(veth1.10) entered disabled state [ 17.092041][ T416] veth1.10: entered allmulticast mode [ 17.092300][ T416] veth1: entered allmulticast mode [ 17.094308][ T416] veth1.10: entered promiscuous mode [ 17.094535][ T416] veth1: entered promiscuous mode [ 17.567474][ T433] br11: port 1(veth1.11) entered blocking state [ 17.567764][ T433] br11: port 1(veth1.11) entered disabled state [ 17.568048][ T433] veth1.11: entered allmulticast mode [ 17.569932][ T433] veth1.11: entered promiscuous mode [ 18.408335][ T463] br10: port 2(veth2.10) entered blocking state [ 18.408732][ T463] br10: port 2(veth2.10) entered disabled state [ 18.409072][ T463] veth2.10: entered allmulticast mode [ 18.409362][ T463] veth2: entered allmulticast mode [ 18.411477][ T463] veth2.10: entered promiscuous mode [ 18.411769][ T463] veth2: entered promiscuous mode [ 18.868249][ T480] br11: port 2(veth2.11) entered blocking state [ 18.868557][ T480] br11: port 2(veth2.11) entered disabled state [ 18.868837][ T480] veth2.11: entered allmulticast mode [ 18.877842][ T480] veth2.11: entered promiscuous mode [ 19.271761][ T492] br10: port 2(veth2.10) entered blocking state [ 19.272160][ T492] br10: port 2(veth2.10) entered forwarding state [ 19.272882][ T492] br10: port 1(veth1.10) entered blocking state [ 19.273167][ T492] br10: port 1(veth1.10) entered forwarding state [ 19.407884][ T497] br11: port 2(veth2.11) entered blocking state [ 19.408198][ T497] br11: port 2(veth2.11) entered forwarding state [ 19.408702][ T497] br11: port 1(veth1.11) entered blocking state [ 19.408975][ T497] br11: port 1(veth1.11) entered forwarding state [ 28.366930][ T551] [ 28.367169][ T551] ============================= [ 28.367354][ T551] WARNING: suspicious RCU usage [ 28.367531][ T551] 6.14.0-rc6-virtme #1 Not tainted [ 28.367711][ T551] ----------------------------- [ 28.367861][ T551] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 28.368132][ T551] [ 28.368132][ T551] other info that might help us debug this: [ 28.368132][ T551] [ 28.368434][ T551] [ 28.368434][ T551] rcu_scheduler_active = 2, debug_locks = 1 [ 28.368665][ T551] 1 lock held by mausezahn/551: [ 28.368819][ T551] #0: ffffffff8c75b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 28.369100][ T551] [ 28.369100][ T551] stack backtrace: [ 28.369294][ T551] CPU: 3 UID: 0 PID: 551 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 28.369298][ T551] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.369300][ T551] Call Trace: [ 28.369302][ T551] [ 28.369304][ T551] dump_stack_lvl+0xb0/0xd0 [ 28.369311][ T551] lockdep_rcu_suspicious+0x1ea/0x280 [ 28.369321][ T551] dev_hard_start_xmit+0x2fc/0x3f0 [ 28.369331][ T551] __dev_queue_xmit+0xfaf/0x18d0 [ 28.369336][ T551] ? __pfx__copy_from_iter+0x10/0x10 [ 28.369345][ T551] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 28.369357][ T551] ? __pfx___dev_queue_xmit+0x10/0x10 [ 28.369361][ T551] ? packet_parse_headers+0x231/0x9c0 [ 28.369369][ T551] ? copy_page_from_iter+0xbd/0x120 [ 28.369374][ T551] ? __pfx_packet_parse_headers+0x10/0x10 [ 28.369379][ T551] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 28.369393][ T551] packet_snd+0xd0c/0x19d0 [ 28.369404][ T551] ? __lock_release+0x103/0x460 [ 28.369408][ T551] ? __might_fault+0x11b/0x170 [ 28.369415][ T551] ? __pfx_packet_snd+0x10/0x10 [ 28.369417][ T551] ? trace_lock_acquire+0x14c/0x1f0 [ 28.369419][ T551] ? __might_fault+0x11b/0x170 [ 28.369426][ T551] ? lock_acquire+0x32/0xc0 [ 28.369432][ T551] ? __might_fault+0x11b/0x170 [ 28.369443][ T551] __sys_sendto+0x3c3/0x450 [ 28.369449][ T551] ? __pfx___sys_sendto+0x10/0x10 [ 28.369463][ T551] ? sock_ioctl+0x3b6/0x590 [ 28.369467][ T551] ? __pfx___lock_release+0x10/0x10 [ 28.369475][ T551] ? __pfx___up_read+0x10/0x10 [ 28.369485][ T551] ? do_user_addr_fault+0x972/0xe30 [ 28.369493][ T551] ? do_user_addr_fault+0x97c/0xe30 [ 28.369500][ T551] __x64_sys_sendto+0xe0/0x1c0 [ 28.369504][ T551] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 28.369509][ T551] do_syscall_64+0xc1/0x1d0 [ 28.369516][ T551] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 28.369520][ T551] RIP: 0033:0x7f7637812a4a [ 28.369524][ T551] 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 [ 28.369527][ T551] RSP: 002b:00007fff7d6ecaa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 28.369530][ T551] RAX: ffffffffffffffda RBX: 000000000c6df9d0 RCX: 00007f7637812a4a [ 28.369532][ T551] RDX: 0000000000001f6a RSI: 000000000c6e28e2 RDI: 0000000000000005 [ 28.369534][ T551] RBP: 000000000c6e28e2 R08: 00007fff7d6ecab0 R09: 0000000000000014 [ 28.369536][ T551] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 28.369538][ T551] R13: 0000000000001f6a R14: 00007fff7d6ecab0 R15: 0000000000000000 [ 28.369554][ T551] [ 99.711844][ T840] br11: port 2(veth2.11) entered disabled state [ 99.713139][ T840] br11: port 1(veth1.11) entered disabled state [ 99.801051][ T842] br10: port 2(veth2.10) entered disabled state [ 99.801766][ T842] br10: port 1(veth1.10) entered disabled state [ 99.983266][ T846] veth2.11: left allmulticast mode [ 99.983553][ T846] veth2.11: left promiscuous mode [ 99.984075][ T846] br11: port 2(veth2.11) entered disabled state [ 100.288190][ T854] veth2.10: left allmulticast mode [ 100.289609][ T854] veth2: left allmulticast mode [ 100.289859][ T854] veth2.10: left promiscuous mode [ 100.290053][ T854] veth2: left promiscuous mode [ 100.290599][ T854] br10: port 2(veth2.10) entered disabled state [ 100.812907][ T864] veth1.11: left allmulticast mode [ 100.813175][ T864] veth1.11: left promiscuous mode [ 100.813726][ T864] br11: port 1(veth1.11) entered disabled state [ 101.117938][ T870] veth1.10: left allmulticast mode [ 101.118234][ T870] veth1: left allmulticast mode [ 101.118452][ T870] veth1.10: left promiscuous mode [ 101.118645][ T870] veth1: left promiscuous mode [ 101.119154][ T870] br10: port 1(veth1.10) entered disabled state