[ 11.242006][ T265] ip (265) used greatest stack depth: 24464 bytes left [ 12.826740][ T290] 8021q: 802.1Q VLAN Support v1.8 [ 14.434121][ T312] br0: port 1(veth1) entered blocking state [ 14.434761][ T312] br0: port 1(veth1) entered disabled state [ 14.436425][ T312] veth1: entered allmulticast mode [ 14.445152][ T312] veth1: entered promiscuous mode [ 14.510793][ T314] br0: port 2(veth2) entered blocking state [ 14.511085][ T314] br0: port 2(veth2) entered disabled state [ 14.511350][ T314] veth2: entered allmulticast mode [ 14.513191][ T314] veth2: entered promiscuous mode [ 14.760973][ T46] br0: port 1(veth1) entered blocking state [ 14.761367][ T46] br0: port 1(veth1) entered forwarding state [ 14.839504][ T40] br0: port 2(veth2) entered blocking state [ 14.839849][ T40] br0: port 2(veth2) entered forwarding state [ 63.490181][ T506] [ 63.490487][ T506] ============================= [ 63.490718][ T506] WARNING: suspicious RCU usage [ 63.490920][ T506] 6.14.0-rc6-virtme #1 Not tainted [ 63.491144][ T506] ----------------------------- [ 63.491338][ T506] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 63.491672][ T506] [ 63.491672][ T506] other info that might help us debug this: [ 63.491672][ T506] [ 63.492062][ T506] [ 63.492062][ T506] rcu_scheduler_active = 2, debug_locks = 1 [ 63.492324][ T506] 1 lock held by mausezahn/506: [ 63.492521][ T506] #0: ffffffffb955b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 63.492877][ T506] [ 63.492877][ T506] stack backtrace: [ 63.493117][ T506] CPU: 2 UID: 0 PID: 506 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 63.493122][ T506] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 63.493124][ T506] Call Trace: [ 63.493126][ T506] [ 63.493129][ T506] dump_stack_lvl+0xb0/0xd0 [ 63.493138][ T506] lockdep_rcu_suspicious+0x1ea/0x280 [ 63.493150][ T506] dev_hard_start_xmit+0x2fc/0x3f0 [ 63.493160][ T506] __dev_queue_xmit+0xfaf/0x18d0 [ 63.493175][ T506] ? __pfx___dev_queue_xmit+0x10/0x10 [ 63.493179][ T506] ? packet_parse_headers+0x231/0x9c0 [ 63.493189][ T506] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 63.493196][ T506] ? __pfx_packet_parse_headers+0x10/0x10 [ 63.493201][ T506] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 63.493207][ T506] ? dev_get_by_index+0xb2/0x190 [ 63.493218][ T506] packet_snd+0xd0c/0x19d0 [ 63.493230][ T506] ? __lock_release+0x103/0x460 [ 63.493234][ T506] ? __might_fault+0x11b/0x170 [ 63.493243][ T506] ? __pfx_packet_snd+0x10/0x10 [ 63.493245][ T506] ? trace_lock_acquire+0x14c/0x1f0 [ 63.493247][ T506] ? __might_fault+0x11b/0x170 [ 63.493254][ T506] ? lock_acquire+0x32/0xc0 [ 63.493261][ T506] ? __might_fault+0x11b/0x170 [ 63.493272][ T506] __sys_sendto+0x3c3/0x450 [ 63.493279][ T506] ? __pfx___sys_sendto+0x10/0x10 [ 63.493293][ T506] ? sock_ioctl+0x3b6/0x590 [ 63.493304][ T506] ? __pfx___up_read+0x10/0x10 [ 63.493313][ T506] ? do_user_addr_fault+0x374/0xe30 [ 63.493324][ T506] ? do_user_addr_fault+0x374/0xe30 [ 63.493331][ T506] __x64_sys_sendto+0xe0/0x1c0 [ 63.493335][ T506] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 63.493341][ T506] do_syscall_64+0xc1/0x1d0 [ 63.493350][ T506] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 63.493357][ T506] RIP: 0033:0x7f32a93bca4a [ 63.493362][ T506] 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 [ 63.493365][ T506] RSP: 002b:00007ffcaf11bd18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 63.493369][ T506] RAX: ffffffffffffffda RBX: 000000003470e9d0 RCX: 00007f32a93bca4a [ 63.493372][ T506] RDX: 000000000000002a RSI: 000000003470ec92 RDI: 0000000000000005 [ 63.493374][ T506] RBP: 000000003470ec92 R08: 00007ffcaf11bd20 R09: 0000000000000014 [ 63.493375][ T506] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 63.493377][ T506] R13: 000000000000002a R14: 00007ffcaf11bd20 R15: 0000000000000000 [ 63.493393][ T506] [ 69.548141][ T583] Mirror/redirect action on [ 77.285417][ T619] br0: port 2(veth2) entered disabled state [ 77.397991][ T620] br0: port 1(veth1) entered disabled state [ 77.475913][ T621] veth2: left allmulticast mode [ 77.476202][ T621] veth2: left promiscuous mode [ 77.476540][ T621] br0: port 2(veth2) entered disabled state [ 77.478096][ T621] veth1: left allmulticast mode [ 77.478316][ T621] veth1: left promiscuous mode [ 77.478673][ T621] br0: port 1(veth1) entered disabled state