[ 11.459515][ T261] ip (261) used greatest stack depth: 23728 bytes left [ 13.598929][ T308] 8021q: 802.1Q VLAN Support v1.8 [ 16.698430][ T378] GACT probability NOT on [ 17.988813][ T413] br10: port 1(veth1.10) entered blocking state [ 17.989251][ T413] br10: port 1(veth1.10) entered disabled state [ 17.989641][ T413] veth1.10: entered allmulticast mode [ 17.989826][ T413] veth1: entered allmulticast mode [ 17.991902][ T413] veth1.10: entered promiscuous mode [ 17.992503][ T413] veth1: entered promiscuous mode [ 18.458500][ T430] br11: port 1(veth1.11) entered blocking state [ 18.458784][ T430] br11: port 1(veth1.11) entered disabled state [ 18.459055][ T430] veth1.11: entered allmulticast mode [ 18.460985][ T430] veth1.11: entered promiscuous mode [ 19.272689][ T460] br10: port 2(veth2.10) entered blocking state [ 19.273005][ T460] br10: port 2(veth2.10) entered disabled state [ 19.273316][ T460] veth2.10: entered allmulticast mode [ 19.273508][ T460] veth2: entered allmulticast mode [ 19.275372][ T460] veth2.10: entered promiscuous mode [ 19.275587][ T460] veth2: entered promiscuous mode [ 19.719703][ T477] br11: port 2(veth2.11) entered blocking state [ 19.719987][ T477] br11: port 2(veth2.11) entered disabled state [ 19.720385][ T477] veth2.11: entered allmulticast mode [ 19.730682][ T477] veth2.11: entered promiscuous mode [ 20.159349][ T489] br10: port 2(veth2.10) entered blocking state [ 20.159901][ T489] br10: port 2(veth2.10) entered forwarding state [ 20.160753][ T489] br10: port 1(veth1.10) entered blocking state [ 20.161047][ T489] br10: port 1(veth1.10) entered forwarding state [ 20.292477][ T494] br11: port 2(veth2.11) entered blocking state [ 20.292778][ T494] br11: port 2(veth2.11) entered forwarding state [ 20.293238][ T494] br11: port 1(veth1.11) entered blocking state [ 20.293481][ T494] br11: port 1(veth1.11) entered forwarding state [ 28.995120][ T546] [ 28.995390][ T546] ============================= [ 28.995673][ T546] WARNING: suspicious RCU usage [ 28.995828][ T546] 6.14.0-rc6-virtme #1 Not tainted [ 28.995996][ T546] ----------------------------- [ 28.996194][ T546] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 28.996485][ T546] [ 28.996485][ T546] other info that might help us debug this: [ 28.996485][ T546] [ 28.996833][ T546] [ 28.996833][ T546] rcu_scheduler_active = 2, debug_locks = 1 [ 28.997093][ T546] 1 lock held by mausezahn/546: [ 28.997264][ T546] #0: ffffffff8eb5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 28.997561][ T546] [ 28.997561][ T546] stack backtrace: [ 28.997781][ T546] CPU: 1 UID: 0 PID: 546 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 28.997785][ T546] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 28.997787][ T546] Call Trace: [ 28.997789][ T546] [ 28.997791][ T546] dump_stack_lvl+0xb0/0xd0 [ 28.997798][ T546] lockdep_rcu_suspicious+0x1ea/0x280 [ 28.997808][ T546] dev_hard_start_xmit+0x2fc/0x3f0 [ 28.997819][ T546] __dev_queue_xmit+0xfaf/0x18d0 [ 28.997824][ T546] ? __pfx__copy_from_iter+0x10/0x10 [ 28.997833][ T546] ? __pfx_vlan_parse_protocol+0x10/0x10 [8021q] [ 28.997846][ T546] ? __pfx___dev_queue_xmit+0x10/0x10 [ 28.997850][ T546] ? packet_parse_headers+0x231/0x9c0 [ 28.997858][ T546] ? copy_page_from_iter+0xbd/0x120 [ 28.997863][ T546] ? __pfx_packet_parse_headers+0x10/0x10 [ 28.997867][ T546] ? skb_copy_datagram_from_iter+0x29f/0x6f0 [ 28.997881][ T546] packet_snd+0xd0c/0x19d0 [ 28.997893][ T546] ? __lock_release+0x103/0x460 [ 28.997896][ T546] ? __might_fault+0x11b/0x170 [ 28.997904][ T546] ? __pfx_packet_snd+0x10/0x10 [ 28.997906][ T546] ? trace_lock_acquire+0x14c/0x1f0 [ 28.997909][ T546] ? __might_fault+0x11b/0x170 [ 28.997915][ T546] ? lock_acquire+0x32/0xc0 [ 28.997922][ T546] ? __might_fault+0x11b/0x170 [ 28.997933][ T546] __sys_sendto+0x3c3/0x450 [ 28.997939][ T546] ? __pfx___sys_sendto+0x10/0x10 [ 28.997953][ T546] ? sock_ioctl+0x3b6/0x590 [ 28.997957][ T546] ? __pfx___lock_release+0x10/0x10 [ 28.997965][ T546] ? __pfx___up_read+0x10/0x10 [ 28.997974][ T546] ? do_user_addr_fault+0x972/0xe30 [ 28.997982][ T546] ? do_user_addr_fault+0x97c/0xe30 [ 28.997989][ T546] __x64_sys_sendto+0xe0/0x1c0 [ 28.997993][ T546] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 28.997998][ T546] do_syscall_64+0xc1/0x1d0 [ 28.998005][ T546] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 28.998010][ T546] RIP: 0033:0x7f4ae1717a4a [ 28.998015][ T546] 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 [ 28.998017][ T546] RSP: 002b:00007ffe31343308 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 28.998021][ T546] RAX: ffffffffffffffda RBX: 000000000ed3d9d0 RCX: 00007f4ae1717a4a [ 28.998023][ T546] RDX: 0000000000001f6a RSI: 000000000ed408e2 RDI: 0000000000000005 [ 28.998025][ T546] RBP: 000000000ed408e2 R08: 00007ffe31343310 R09: 0000000000000014 [ 28.998027][ T546] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 28.998028][ T546] R13: 0000000000001f6a R14: 00007ffe31343310 R15: 0000000000000000 [ 28.998044][ T546] [ 46.850603][ T621] br11: port 2(veth2.11) entered disabled state [ 46.851644][ T621] br11: port 1(veth1.11) entered disabled state [ 46.929184][ T623] br10: port 2(veth2.10) entered disabled state [ 46.929842][ T623] br10: port 1(veth1.10) entered disabled state [ 47.166966][ T627] veth2.11: left allmulticast mode [ 47.167278][ T627] veth2.11: left promiscuous mode [ 47.167835][ T627] br11: port 2(veth2.11) entered disabled state [ 47.504367][ T635] veth2.10: left allmulticast mode [ 47.504651][ T635] veth2: left allmulticast mode [ 47.504879][ T635] veth2.10: left promiscuous mode [ 47.505099][ T635] veth2: left promiscuous mode [ 47.505615][ T635] br10: port 2(veth2.10) entered disabled state [ 48.113423][ T646] veth1.11: left allmulticast mode [ 48.113690][ T646] veth1.11: left promiscuous mode [ 48.114204][ T646] br11: port 1(veth1.11) entered disabled state [ 48.427825][ T652] veth1.10: left allmulticast mode [ 48.428054][ T652] veth1: left allmulticast mode [ 48.428337][ T652] veth1.10: left promiscuous mode [ 48.428538][ T652] veth1: left promiscuous mode [ 48.429046][ T652] br10: port 1(veth1.10) entered disabled state