[ 10.635604][ T260] ip (260) used greatest stack depth: 23536 bytes left [ 12.423044][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 15.489089][ T378] GACT probability NOT on [ 16.826825][ T414] br10: port 1(veth1.10) entered blocking state [ 16.827818][ T414] br10: port 1(veth1.10) entered disabled state [ 16.828210][ T414] veth1.10: entered allmulticast mode [ 16.828414][ T414] veth1: entered allmulticast mode [ 16.830445][ T414] veth1.10: entered promiscuous mode [ 16.830694][ T414] veth1: entered promiscuous mode [ 17.285202][ T431] br11: port 1(veth1.11) entered blocking state [ 17.285504][ T431] br11: port 1(veth1.11) entered disabled state [ 17.285787][ T431] veth1.11: entered allmulticast mode [ 17.287755][ T431] veth1.11: entered promiscuous mode [ 18.089184][ T462] br10: port 2(veth2.10) entered blocking state [ 18.089489][ T462] br10: port 2(veth2.10) entered disabled state [ 18.089772][ T462] veth2.10: entered allmulticast mode [ 18.089966][ T462] veth2: entered allmulticast mode [ 18.092320][ T462] veth2.10: entered promiscuous mode [ 18.092534][ T462] veth2: entered promiscuous mode [ 18.532687][ T479] br11: port 2(veth2.11) entered blocking state [ 18.532970][ T479] br11: port 2(veth2.11) entered disabled state [ 18.533472][ T479] veth2.11: entered allmulticast mode [ 18.535360][ T479] veth2.11: entered promiscuous mode [ 18.909191][ T491] br10: port 2(veth2.10) entered blocking state [ 18.909656][ T491] br10: port 2(veth2.10) entered forwarding state [ 18.910363][ T491] br10: port 1(veth1.10) entered blocking state [ 18.910669][ T491] br10: port 1(veth1.10) entered forwarding state [ 19.025646][ T496] br11: port 2(veth2.11) entered blocking state [ 19.026020][ T496] br11: port 2(veth2.11) entered forwarding state [ 19.026471][ T496] br11: port 1(veth1.11) entered blocking state [ 19.026713][ T496] br11: port 1(veth1.11) entered forwarding state [ 27.547884][ T547] [ 27.548210][ T547] ============================= [ 27.548420][ T547] WARNING: suspicious RCU usage [ 27.548650][ T547] 6.14.0-rc6-virtme #1 Not tainted [ 27.548849][ T547] ----------------------------- [ 27.549111][ T547] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.549476][ T547] [ 27.549476][ T547] other info that might help us debug this: [ 27.549476][ T547] [ 27.549903][ T547] [ 27.549903][ T547] rcu_scheduler_active = 2, debug_locks = 1 [ 27.550225][ T547] 1 lock held by mausezahn/547: [ 27.550452][ T547] #0: ffffffff9c55b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 27.550811][ T547] [ 27.550811][ T547] stack backtrace: [ 27.551118][ T547] CPU: 0 UID: 0 PID: 547 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 27.551125][ T547] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.551128][ T547] Call Trace: [ 27.551131][ T547] [ 27.551134][ T547] dump_stack_lvl+0xb0/0xd0 [ 27.551145][ T547] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.551160][ T547] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.551181][ T547] __dev_queue_xmit+0xfaf/0x18d0 [ 27.551191][ T547] ? __pfx__copy_from_iter+0x10/0x10 [ 27.551203][ T547] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 27.551221][ T547] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.551228][ T547] ? packet_parse_headers+0x231/0x9c0 [ 27.551243][ T547] ? copy_page_from_iter+0xbd/0x120 [ 27.551252][ T547] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.551259][ T547] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 27.551280][ T547] packet_snd+0xd0c/0x19d0 [ 27.551302][ T547] ? __lock_release+0x103/0x460 [ 27.551306][ T547] ? __might_fault+0x11b/0x170 [ 27.551316][ T547] ? __pfx_packet_snd+0x10/0x10 [ 27.551319][ T547] ? trace_lock_acquire+0x14c/0x1f0 [ 27.551323][ T547] ? __might_fault+0x11b/0x170 [ 27.551334][ T547] ? lock_acquire+0x32/0xc0 [ 27.551346][ T547] ? __might_fault+0x11b/0x170 [ 27.551368][ T547] __sys_sendto+0x3c3/0x450 [ 27.551378][ T547] ? __pfx___sys_sendto+0x10/0x10 [ 27.551407][ T547] ? sock_ioctl+0x3b6/0x590 [ 27.551414][ T547] ? __pfx___lock_release+0x10/0x10 [ 27.551423][ T547] ? __pfx___up_read+0x10/0x10 [ 27.551431][ T547] ? do_user_addr_fault+0x972/0xe30 [ 27.551440][ T547] ? do_user_addr_fault+0x97c/0xe30 [ 27.551447][ T547] __x64_sys_sendto+0xe0/0x1c0 [ 27.551451][ T547] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.551456][ T547] do_syscall_64+0xc1/0x1d0 [ 27.551462][ T547] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.551467][ T547] RIP: 0033:0x7fd261ceda4a [ 27.551472][ T547] 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 [ 27.551474][ T547] RSP: 002b:00007ffc13c554a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.551478][ T547] RAX: ffffffffffffffda RBX: 0000000035d509d0 RCX: 00007fd261ceda4a [ 27.551480][ T547] RDX: 0000000000001f6a RSI: 0000000035d538e2 RDI: 0000000000000005 [ 27.551482][ T547] RBP: 0000000035d538e2 R08: 00007ffc13c554b0 R09: 0000000000000014 [ 27.551484][ T547] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 27.551486][ T547] R13: 0000000000001f6a R14: 00007ffc13c554b0 R15: 0000000000000000 [ 27.551501][ T547] [ 45.335172][ T621] br11: port 2(veth2.11) entered disabled state [ 45.336360][ T621] br11: port 1(veth1.11) entered disabled state [ 45.436696][ T623] br10: port 2(veth2.10) entered disabled state [ 45.437696][ T623] br10: port 1(veth1.10) entered disabled state [ 45.629467][ T627] veth2.11: left allmulticast mode [ 45.629715][ T627] veth2.11: left promiscuous mode [ 45.630261][ T627] br11: port 2(veth2.11) entered disabled state [ 45.942597][ T635] veth2.10: left allmulticast mode [ 45.942837][ T635] veth2: left allmulticast mode [ 45.943040][ T635] veth2.10: left promiscuous mode [ 45.943245][ T635] veth2: left promiscuous mode [ 45.943754][ T635] br10: port 2(veth2.10) entered disabled state [ 46.462549][ T645] veth1.11: left allmulticast mode [ 46.462780][ T645] veth1.11: left promiscuous mode [ 46.463292][ T645] br11: port 1(veth1.11) entered disabled state [ 46.773844][ T651] veth1.10: left allmulticast mode [ 46.774076][ T651] veth1: left allmulticast mode [ 46.774290][ T651] veth1.10: left promiscuous mode [ 46.774477][ T651] veth1: left promiscuous mode [ 46.774960][ T651] br10: port 1(veth1.10) entered disabled state [ 47.644868][ T665] ip (665) used greatest stack depth: 23520 bytes left