[ 10.566615][ T245] team0: Mode changed to "loadbalance" [ 10.587337][ T245] team0: Port device dummy1 added [ 10.592741][ T245] team0: Port device dummy2 added [ 10.688940][ T245] [ 10.689251][ T245] ============================= [ 10.689453][ T245] WARNING: suspicious RCU usage [ 10.689624][ T245] 6.14.0-rc6-virtme #1 Not tainted [ 10.690061][ T245] ----------------------------- [ 10.690251][ T245] ./include/net/net_namespace.h:418 suspicious rcu_dereference_check() usage! [ 10.690542][ T245] [ 10.690542][ T245] other info that might help us debug this: [ 10.690542][ T245] [ 10.690868][ T245] [ 10.690868][ T245] rcu_scheduler_active = 2, debug_locks = 1 [ 10.691131][ T245] 1 lock held by teamd/245: [ 10.691318][ T245] #0: ffffffffa015b5c0 (rcu_read_lock_bh){....}-{1:3}, at: __dev_queue_xmit+0x203/0x1850 [ 10.691645][ T245] [ 10.691645][ T245] stack backtrace: [ 10.691873][ T245] CPU: 3 UID: 0 PID: 245 Comm: teamd Not tainted 6.14.0-rc6-virtme #1 [ 10.691878][ T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.691881][ T245] Call Trace: [ 10.691883][ T245] [ 10.691885][ T245] dump_stack_lvl+0xb0/0xd0 [ 10.691894][ T245] lockdep_rcu_suspicious+0x1ea/0x280 [ 10.691908][ T245] dev_hard_start_xmit+0x2fc/0x3f0 [ 10.691919][ T245] __dev_queue_xmit+0xef9/0x1850 [ 10.691934][ T245] ? __pfx___dev_queue_xmit+0x10/0x10 [ 10.691939][ T245] ? packet_parse_headers+0x231/0x9c0 [ 10.691950][ T245] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 10.691958][ T245] ? __pfx_packet_parse_headers+0x10/0x10 [ 10.691964][ T245] ? skb_copy_datagram_from_iter+0xe6/0x6f0 [ 10.691972][ T245] ? packet_cached_dev_get+0xd5/0x210 [ 10.691986][ T245] packet_snd+0xd00/0x19c0 [ 10.692004][ T245] ? __pfx_packet_snd+0x10/0x10 [ 10.692011][ T245] ? build_sched_domains+0x4d0/0x1690 [ 10.692020][ T245] ? __lock_release+0x103/0x460 [ 10.692023][ T245] ? __might_fault+0x11b/0x170 [ 10.692029][ T245] ? __pfx___lock_release+0x10/0x10 [ 10.692038][ T245] __sys_sendto+0x3c3/0x450 [ 10.692045][ T245] ? __pfx___sys_sendto+0x10/0x10 [ 10.692048][ T245] ? __might_fault+0x11b/0x170 [ 10.692062][ T245] ? __sys_getsockname+0x150/0x1f0 [ 10.692067][ T245] ? __pfx___sys_getsockname+0x10/0x10 [ 10.692073][ T245] ? __pfx___up_read+0x10/0x10 [ 10.692080][ T245] ? do_user_addr_fault+0x972/0xe30 [ 10.692091][ T245] ? do_user_addr_fault+0x97c/0xe30 [ 10.692099][ T245] __x64_sys_sendto+0xe0/0x1c0 [ 10.692103][ T245] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 10.692108][ T245] do_syscall_64+0xc1/0x1d0 [ 10.692116][ T245] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 10.692122][ T245] RIP: 0033:0x7fb069bf88f0 [ 10.692127][ T245] 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 [ 10.692130][ T245] RSP: 002b:00007ffe2a270b88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 10.692134][ T245] RAX: ffffffffffffffda RBX: 0000000024ccd280 RCX: 00007fb069bf88f0 [ 10.692136][ T245] RDX: 000000000000007c RSI: 00007ffe2a270c00 RDI: 0000000000000013 [ 10.692138][ T245] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 10.692140][ T245] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000007c [ 10.692142][ T245] R13: 00007ffe2a270c00 R14: 0000000000000013 R15: 0000000000000002 [ 10.692157][ T245] [ 10.779065][ T250] dummy1: entered promiscuous mode [ 10.779476][ T250] dummy2: entered promiscuous mode [ 11.316862][ T269] dummy1: left promiscuous mode [ 11.317272][ T269] dummy2: left promiscuous mode [ 11.578622][ T270] team0 (unregistering): Port device dummy1 removed [ 11.581063][ T270] team0 (unregistering): Port device dummy2 removed [ 11.635700][ T270] ip (270) used greatest stack depth: 23264 bytes left