[ 11.491881][ T250] ip (250) used greatest stack depth: 23888 bytes left [ 14.533813][ T312] GACT probability NOT on [ 16.424649][ T362] br1: port 1(veth1) entered blocking state [ 16.425201][ T362] br1: port 1(veth1) entered disabled state [ 16.425668][ T362] veth1: entered allmulticast mode [ 16.427871][ T362] veth1: entered promiscuous mode [ 16.707826][ T88] br1: port 1(veth1) entered blocking state [ 16.708296][ T88] br1: port 1(veth1) entered forwarding state [ 23.590237][ T414] br1: port 2(vx1) entered blocking state [ 23.590531][ T414] br1: port 2(vx1) entered disabled state [ 23.591008][ T414] vx1: entered allmulticast mode [ 23.593003][ T414] vx1: entered promiscuous mode [ 23.594248][ T414] br1: port 2(vx1) entered blocking state [ 23.594540][ T414] br1: port 2(vx1) entered forwarding state [ 24.699882][ T469] [ 24.700197][ T469] ============================= [ 24.700382][ T469] WARNING: suspicious RCU usage [ 24.700619][ T469] 6.14.0-rc6-virtme #1 Not tainted [ 24.700800][ T469] ----------------------------- [ 24.701166][ T469] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 24.701549][ T469] [ 24.701549][ T469] other info that might help us debug this: [ 24.701549][ T469] [ 24.701867][ T469] [ 24.701867][ T469] rcu_scheduler_active = 2, debug_locks = 1 [ 24.702117][ T469] 1 lock held by mausezahn/469: [ 24.702281][ T469] #0: ffffffff8735b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x1f0/0x18d0 [ 24.702600][ T469] [ 24.702600][ T469] stack backtrace: [ 24.702798][ T469] CPU: 0 UID: 0 PID: 469 Comm: mausezahn Not tainted 6.14.0-rc6-virtme #1 [ 24.702802][ T469] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 24.702805][ T469] Call Trace: [ 24.702807][ T469] [ 24.702809][ T469] dump_stack_lvl+0xb0/0xd0 [ 24.702816][ T469] lockdep_rcu_suspicious+0x1ea/0x280 [ 24.702827][ T469] dev_hard_start_xmit+0x2fc/0x3f0 [ 24.702837][ T469] __dev_queue_xmit+0xfaf/0x18d0 [ 24.702852][ T469] ? __pfx___dev_queue_xmit+0x10/0x10 [ 24.702856][ T469] ? packet_parse_headers+0x231/0x9c0 [ 24.702864][ T469] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 24.702870][ T469] ? __pfx_packet_parse_headers+0x10/0x10 [ 24.702875][ T469] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 24.702880][ T469] ? dev_get_by_index+0xb2/0x190 [ 24.702892][ T469] packet_snd+0xd0c/0x19d0 [ 24.702903][ T469] ? __lock_release+0x103/0x460 [ 24.702908][ T469] ? __might_fault+0x11b/0x170 [ 24.702916][ T469] ? __pfx_packet_snd+0x10/0x10 [ 24.702920][ T469] ? trace_lock_acquire+0x14c/0x1f0 [ 24.702923][ T469] ? __might_fault+0x11b/0x170 [ 24.702933][ T469] ? lock_acquire+0x32/0xc0 [ 24.702943][ T469] ? __might_fault+0x11b/0x170 [ 24.702958][ T469] __sys_sendto+0x3c3/0x450 [ 24.702964][ T469] ? __pfx___sys_sendto+0x10/0x10 [ 24.702978][ T469] ? sock_ioctl+0x3b6/0x590 [ 24.702988][ T469] ? __pfx___up_read+0x10/0x10 [ 24.702996][ T469] ? do_user_addr_fault+0x374/0xe30 [ 24.703006][ T469] ? do_user_addr_fault+0x374/0xe30 [ 24.703014][ T469] __x64_sys_sendto+0xe0/0x1c0 [ 24.703017][ T469] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 24.703023][ T469] do_syscall_64+0xc1/0x1d0 [ 24.703030][ T469] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 24.703035][ T469] RIP: 0033:0x7f859f50ea4a [ 24.703040][ T469] 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 [ 24.703043][ T469] RSP: 002b:00007ffeb6928978 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 24.703047][ T469] RAX: ffffffffffffffda RBX: 0000000018b8a9d0 RCX: 00007f859f50ea4a [ 24.703049][ T469] RDX: 0000000000000094 RSI: 0000000018b8acf2 RDI: 0000000000000005 [ 24.703051][ T469] RBP: 0000000018b8acf2 R08: 00007ffeb6928980 R09: 0000000000000014 [ 24.703053][ T469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 24.703055][ T469] R13: 0000000000000094 R14: 00007ffeb6928980 R15: 0000000000000000 [ 24.703071][ T469] [ 72.390579][ T2366] vx1: left allmulticast mode [ 72.390829][ T2366] vx1: left promiscuous mode [ 72.391165][ T2366] br1: port 2(vx1) entered disabled state [ 72.560088][ T2368] ip (2368) used greatest stack depth: 23760 bytes left [ 72.914376][ T2388] br1: port 2(vx1) entered blocking state [ 72.914734][ T2388] br1: port 2(vx1) entered disabled state [ 72.915083][ T2388] vx1: entered allmulticast mode [ 72.917873][ T2388] vx1: entered promiscuous mode [ 72.918756][ T2388] br1: port 2(vx1) entered blocking state [ 72.919002][ T2388] br1: port 2(vx1) entered forwarding state [ 114.340692][ T4341] vx1: left allmulticast mode [ 114.341115][ T4341] vx1: left promiscuous mode [ 114.343282][ T4341] br1: port 2(vx1) entered disabled state [ 114.973493][ T4374] br1: port 2(vx1) entered blocking state [ 114.973731][ T4374] br1: port 2(vx1) entered disabled state [ 114.973972][ T4374] vx1: entered allmulticast mode [ 114.975914][ T4374] vx1: entered promiscuous mode [ 114.976668][ T4374] br1: port 2(vx1) entered blocking state [ 114.976872][ T4374] br1: port 2(vx1) entered forwarding state [ 158.035696][ T6326] vx1: left allmulticast mode [ 158.035988][ T6326] vx1: left promiscuous mode [ 158.036326][ T6326] br1: port 2(vx1) entered disabled state [ 158.705336][ T6359] br1: port 2(vx1) entered blocking state [ 158.705689][ T6359] br1: port 2(vx1) entered disabled state [ 158.705960][ T6359] vx1: entered allmulticast mode [ 158.708113][ T6359] vx1: entered promiscuous mode [ 158.708983][ T6359] br1: port 2(vx1) entered blocking state [ 158.709240][ T6359] br1: port 2(vx1) entered forwarding state [ 200.966304][ T8311] vx1: left allmulticast mode [ 200.967050][ T8311] vx1: left promiscuous mode [ 200.967618][ T8311] br1: port 2(vx1) entered disabled state [ 201.635672][ T8344] br1: port 2(vx1) entered blocking state [ 201.635979][ T8344] br1: port 2(vx1) entered disabled state [ 201.636233][ T8344] vx1: entered allmulticast mode [ 201.638226][ T8344] vx1: entered promiscuous mode [ 201.639082][ T8344] br1: port 2(vx1) entered blocking state [ 201.639347][ T8344] br1: port 2(vx1) entered forwarding state [ 244.356635][T10296] vx1: left allmulticast mode [ 244.356892][T10296] vx1: left promiscuous mode [ 244.357231][T10296] br1: port 2(vx1) entered disabled state [ 245.004973][T10329] br1: port 2(vx1) entered blocking state [ 245.005207][T10329] br1: port 2(vx1) entered disabled state [ 245.005470][T10329] vx1: entered allmulticast mode [ 245.008045][T10329] vx1: entered promiscuous mode [ 245.008863][T10329] br1: port 2(vx1) entered blocking state [ 245.009070][T10329] br1: port 2(vx1) entered forwarding state [ 287.379325][T12281] vx1: left allmulticast mode [ 287.379764][T12281] vx1: left promiscuous mode [ 287.380241][T12281] br1: port 2(vx1) entered disabled state [ 287.967559][T12314] br1: port 2(vx1) entered blocking state [ 287.967796][T12314] br1: port 2(vx1) entered disabled state [ 287.968029][T12314] vx1: entered allmulticast mode [ 287.969979][T12314] vx1: entered promiscuous mode [ 287.970756][T12314] br1: port 2(vx1) entered blocking state [ 287.970952][T12314] br1: port 2(vx1) entered forwarding state [ 329.207104][T14266] vx1: left allmulticast mode [ 329.207375][T14266] vx1: left promiscuous mode [ 329.207700][T14266] br1: port 2(vx1) entered disabled state [ 329.736179][T14285] ip (14285) used greatest stack depth: 23368 bytes left [ 330.269745][T14291] br1: port 1(veth1) entered disabled state [ 330.355452][T14293] veth1: left allmulticast mode [ 330.355738][T14293] veth1: left promiscuous mode [ 330.356072][T14293] br1: port 1(veth1) entered disabled state