[ 27.312178][ T519] team0: Mode changed to "loadbalance" [ 27.326043][ T519] team0: Port device dummy1 added [ 27.329876][ T519] team0: Port device dummy2 added [ 27.448191][ T519] [ 27.448455][ T519] ============================= [ 27.448643][ T519] WARNING: suspicious RCU usage [ 27.448809][ T519] 6.14.0-rc6-virtme #1 Not tainted [ 27.449218][ T519] ----------------------------- [ 27.449386][ T519] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 27.449657][ T519] [ 27.449657][ T519] other info that might help us debug this: [ 27.449657][ T519] [ 27.449971][ T519] [ 27.449971][ T519] rcu_scheduler_active = 2, debug_locks = 1 [ 27.450245][ T519] 1 lock held by teamd/519: [ 27.450415][ T519] #0: ffffffff94b5b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 27.450716][ T519] [ 27.450716][ T519] stack backtrace: [ 27.450921][ T519] CPU: 2 UID: 0 PID: 519 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 27.450926][ T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 27.450927][ T519] Call Trace: [ 27.450929][ T519] [ 27.450932][ T519] dump_stack_lvl+0xb0/0xd0 [ 27.450938][ T519] lockdep_rcu_suspicious+0x1ea/0x280 [ 27.450950][ T519] dev_hard_start_xmit+0x2fc/0x3f0 [ 27.450961][ T519] __dev_queue_xmit+0xef9/0x1850 [ 27.450975][ T519] ? __pfx___dev_queue_xmit+0x10/0x10 [ 27.450980][ T519] ? packet_parse_headers+0x231/0x9c0 [ 27.450991][ T519] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 27.450998][ T519] ? __pfx_packet_parse_headers+0x10/0x10 [ 27.451003][ T519] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 27.451010][ T519] ? packet_cached_dev_get+0xd5/0x210 [ 27.451020][ T519] packet_snd+0xd00/0x19c0 [ 27.451035][ T519] ? __pfx_packet_snd+0x10/0x10 [ 27.451043][ T519] ? build_sched_domains+0x4d0/0x1690 [ 27.451051][ T519] ? __lock_release+0x103/0x460 [ 27.451054][ T519] ? __might_fault+0x11b/0x170 [ 27.451059][ T519] ? __pfx___lock_release+0x10/0x10 [ 27.451067][ T519] __sys_sendto+0x3c3/0x450 [ 27.451077][ T519] ? __pfx___sys_sendto+0x10/0x10 [ 27.451079][ T519] ? __might_fault+0x11b/0x170 [ 27.451093][ T519] ? __sys_getsockname+0x150/0x1f0 [ 27.451097][ T519] ? __pfx___sys_getsockname+0x10/0x10 [ 27.451103][ T519] ? __pfx___up_read+0x10/0x10 [ 27.451110][ T519] ? do_user_addr_fault+0x972/0xe30 [ 27.451119][ T519] ? do_user_addr_fault+0x97c/0xe30 [ 27.451126][ T519] __x64_sys_sendto+0xe0/0x1c0 [ 27.451131][ T519] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 27.451135][ T519] do_syscall_64+0xc1/0x1d0 [ 27.451141][ T519] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 27.451147][ T519] RIP: 0033:0x7f64335088f0 [ 27.451151][ T519] Code: ff ff 64 89 02 eb bd 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 1d 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 68 c3 0f 1f 80 00 00 00 00 41 54 48 83 ec 20 [ 27.451155][ T519] RSP: 002b:00007ffd4db822f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 27.451159][ T519] RAX: ffffffffffffffda RBX: 00000000063f82e0 RCX: 00007f64335088f0 [ 27.451161][ T519] RDX: 000000000000007c RSI: 00007ffd4db82370 RDI: 0000000000000013 [ 27.451163][ T519] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 27.451165][ T519] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 27.451166][ T519] R13: 00007ffd4db82370 R14: 0000000000000013 R15: 0000000000000002 [ 27.451182][ T519] [ 27.537340][ T524] dummy1: entered promiscuous mode [ 27.537669][ T524] dummy2: entered promiscuous mode [ 28.030143][ T543] dummy1: left promiscuous mode [ 28.030575][ T543] dummy2: left promiscuous mode [ 28.039638][ T543] ip (543) used greatest stack depth: 23352 bytes left [ 28.433228][ T544] team0 (unregistering): Port device dummy1 removed [ 28.435843][ T544] team0 (unregistering): Port device dummy2 removed