[ 4295.548813][T15564] netdevsim netdevsim547 eni547np1: renamed from eth1 [ 4295.564978][T15563] netdevsim netdevsim267 eni267np1: renamed from eth0 [ 4297.584700][T15590] [ 4297.585122][T15590] ============================= [ 4297.585345][T15590] WARNING: suspicious RCU usage [ 4297.585559][T15590] 6.12.0-rc6-virtme #1 Not tainted [ 4297.585760][T15590] ----------------------------- [ 4297.585959][T15590] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4297.586242][T15590] [ 4297.586242][T15590] other info that might help us debug this: [ 4297.586242][T15590] [ 4297.586832][T15590] [ 4297.586832][T15590] rcu_scheduler_active = 2, debug_locks = 1 [ 4297.587121][T15590] 2 locks held by busy_poller/15590: [ 4297.587321][T15590] #0: ffffffff92259770 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4297.587650][T15590] #1: ffffffff92202408 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4297.588562][T15590] [ 4297.588562][T15590] stack backtrace: [ 4297.588846][T15590] CPU: 2 UID: 0 PID: 15590 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4297.589162][T15590] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4297.589393][T15590] Call Trace: [ 4297.589534][T15590] [ 4297.589632][T15590] dump_stack_lvl+0xb0/0xd0 [ 4297.589817][T15590] lockdep_rcu_suspicious+0x1ea/0x280 [ 4297.590008][T15590] napi_by_id+0x134/0x170 [ 4297.590150][T15590] netdev_nl_napi_set_doit+0xeb/0x640 [ 4297.590323][T15590] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4297.590571][T15590] ? __nla_parse+0x26/0x30 [ 4297.590763][T15590] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4297.591040][T15590] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4297.591225][T15590] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4297.591439][T15590] ? __pfx___lock_release+0x10/0x10 [ 4297.591615][T15590] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4297.591806][T15590] ? validate_chain+0x1fe/0xae0 [ 4297.592000][T15590] genl_family_rcv_msg+0x347/0x5b0 [ 4297.592193][T15590] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4297.592376][T15590] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4297.592611][T15590] genl_rcv_msg+0xa3/0x140 [ 4297.592793][T15590] netlink_rcv_skb+0x130/0x360 [ 4297.592971][T15590] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4297.593154][T15590] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4297.593348][T15590] ? genl_rcv+0x19/0x40 [ 4297.593481][T15590] ? __pfx_down_read+0x10/0x10 [ 4297.593662][T15590] ? netlink_deliver_tap+0x13e/0x340 [ 4297.593840][T15590] genl_rcv+0x28/0x40 [ 4297.593973][T15590] netlink_unicast+0x44b/0x710 [ 4297.594147][T15590] ? __pfx_netlink_unicast+0x10/0x10 [ 4297.594341][T15590] ? __wake_up+0x44/0x60 [ 4297.594483][T15590] netlink_sendmsg+0x723/0xbe0 [ 4297.594661][T15590] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4297.594844][T15590] ? fdget+0x52/0x1e0 [ 4297.594990][T15590] __sys_sendto+0x377/0x400 [ 4297.595173][T15590] ? __pfx___sys_sendto+0x10/0x10 [ 4297.595358][T15590] ? do_user_addr_fault+0x972/0xe30 [ 4297.595534][T15590] ? __pfx___lock_release+0x10/0x10 [ 4297.595707][T15590] ? __up_read+0x1a7/0x780 [ 4297.595887][T15590] ? trace_lock_acquire+0x14d/0x1f0 [ 4297.596065][T15590] ? __pfx___up_read+0x10/0x10 [ 4297.596241][T15590] ? do_user_addr_fault+0x972/0xe30 [ 4297.596426][T15590] ? do_user_addr_fault+0x97c/0xe30 [ 4297.596609][T15590] __x64_sys_sendto+0xe0/0x1c0 [ 4297.596784][T15590] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4297.597006][T15590] do_syscall_64+0xc1/0x1d0 [ 4297.597188][T15590] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4297.597408][T15590] RIP: 0033:0x7f5528917700 [ 4297.597597][T15590] 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 [ 4297.598217][T15590] RSP: 002b:00007ffef56e25e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4297.598481][T15590] RAX: ffffffffffffffda RBX: 00007ffef56e2600 RCX: 00007f5528917700 [ 4297.598743][T15590] RDX: 0000000000000034 RSI: 00007f5528784270 RDI: 0000000000000005 [ 4297.599000][T15590] RBP: 00007f5528784010 R08: 0000000000000000 R09: 0000000000000000 [ 4297.599266][T15590] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000aade2f0 [ 4297.599527][T15590] R13: 00007f5528784010 R14: 000000000aade310 R15: 00007f5528a12000 [ 4297.599804][T15590]