[ 4215.618929][ T1500] netdevsim netdevsim574 eni574np1: renamed from eth1 [ 4215.724642][ T1499] netdevsim netdevsim396 eni396np1: renamed from eth0 [ 4217.652216][ T1528] [ 4217.652512][ T1528] ============================= [ 4217.652722][ T1528] WARNING: suspicious RCU usage [ 4217.652923][ T1528] 6.12.0-rc6-virtme #1 Not tainted [ 4217.653152][ T1528] ----------------------------- [ 4217.653686][ T1528] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4217.654006][ T1528] [ 4217.654006][ T1528] other info that might help us debug this: [ 4217.654006][ T1528] [ 4217.654400][ T1528] [ 4217.654400][ T1528] rcu_scheduler_active = 2, debug_locks = 1 [ 4217.655429][ T1528] 2 locks held by busy_poller/1528: [ 4217.655656][ T1528] #0: ffffffff92c59770 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4217.655976][ T1528] #1: ffffffff92c02408 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4217.656331][ T1528] [ 4217.656331][ T1528] stack backtrace: [ 4217.656608][ T1528] CPU: 3 UID: 0 PID: 1528 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4217.656958][ T1528] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4217.657202][ T1528] Call Trace: [ 4217.657355][ T1528] [ 4217.657467][ T1528] dump_stack_lvl+0xb0/0xd0 [ 4217.657697][ T1528] lockdep_rcu_suspicious+0x1ea/0x280 [ 4217.657903][ T1528] napi_by_id+0x134/0x170 [ 4217.658060][ T1528] netdev_nl_napi_set_doit+0xeb/0x640 [ 4217.658264][ T1528] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4217.658532][ T1528] ? __nla_parse+0x26/0x30 [ 4217.658735][ T1528] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4217.659039][ T1528] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4217.659252][ T1528] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4217.659504][ T1528] ? __pfx___lock_release+0x10/0x10 [ 4217.659702][ T1528] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4217.659930][ T1528] ? validate_chain+0x1fe/0xae0 [ 4217.660150][ T1528] genl_family_rcv_msg+0x347/0x5b0 [ 4217.660353][ T1528] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4217.660554][ T1528] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4217.660823][ T1528] genl_rcv_msg+0xa3/0x140 [ 4217.661026][ T1528] netlink_rcv_skb+0x130/0x360 [ 4217.661226][ T1528] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4217.661428][ T1528] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4217.661642][ T1528] ? genl_rcv+0x19/0x40 [ 4217.661800][ T1528] ? __pfx_down_read+0x10/0x10 [ 4217.662001][ T1528] ? netlink_deliver_tap+0x13e/0x340 [ 4217.662206][ T1528] genl_rcv+0x28/0x40 [ 4217.662366][ T1528] netlink_unicast+0x44b/0x710 [ 4217.662581][ T1528] ? __pfx_netlink_unicast+0x10/0x10 [ 4217.662779][ T1528] ? __wake_up+0x44/0x60 [ 4217.662936][ T1528] netlink_sendmsg+0x723/0xbe0 [ 4217.663144][ T1528] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4217.663351][ T1528] ? fdget+0x52/0x1e0 [ 4217.663521][ T1528] __sys_sendto+0x377/0x400 [ 4217.663721][ T1528] ? __pfx___sys_sendto+0x10/0x10 [ 4217.663933][ T1528] ? do_user_addr_fault+0x972/0xe30 [ 4217.664138][ T1528] ? __pfx___lock_release+0x10/0x10 [ 4217.664337][ T1528] ? __up_read+0x1a7/0x780 [ 4217.664540][ T1528] ? trace_lock_acquire+0x14d/0x1f0 [ 4217.664751][ T1528] ? __pfx___up_read+0x10/0x10 [ 4217.664964][ T1528] ? do_user_addr_fault+0x972/0xe30 [ 4217.665162][ T1528] ? do_user_addr_fault+0x97c/0xe30 [ 4217.665363][ T1528] __x64_sys_sendto+0xe0/0x1c0 [ 4217.665557][ T1528] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4217.665799][ T1528] do_syscall_64+0xc1/0x1d0 [ 4217.665999][ T1528] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4217.666240][ T1528] RIP: 0033:0x7f147ba5f700 [ 4217.666447][ T1528] Code: Unable to access opcode bytes at 0x7f147ba5f6d6. [ 4217.666730][ T1528] RSP: 002b:00007ffcb256a188 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4217.667031][ T1528] RAX: ffffffffffffffda RBX: 00007ffcb256a1a0 RCX: 00007f147ba5f700 [ 4217.667333][ T1528] RDX: 0000000000000034 RSI: 00007f147b8cc270 RDI: 0000000000000005 [ 4217.667651][ T1528] RBP: 00007f147b8cc010 R08: 0000000000000000 R09: 0000000000000000 [ 4217.667952][ T1528] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000018f732f0 [ 4217.668256][ T1528] R13: 00007f147b8cc010 R14: 0000000018f73310 R15: 00007f147bb5a000 [ 4217.668572][ T1528]