[ 40.097934][ T1075] netdevsim netdevsim717 eni717np1: renamed from eth1 [ 40.199173][ T1077] netdevsim netdevsim404 eni404np1: renamed from eth0 [ 42.008131][ T1104] [ 42.008915][ T1104] ============================= [ 42.009103][ T1104] WARNING: suspicious RCU usage [ 42.009281][ T1104] 6.12.0-rc6-virtme #1 Not tainted [ 42.009473][ T1104] ----------------------------- [ 42.009650][ T1104] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 42.009903][ T1104] [ 42.009903][ T1104] other info that might help us debug this: [ 42.009903][ T1104] [ 42.010227][ T1104] [ 42.010227][ T1104] rcu_scheduler_active = 2, debug_locks = 1 [ 42.010490][ T1104] 2 locks held by busy_poller/1104: [ 42.010672][ T1104] #0: ffffffff964594b0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 42.010947][ T1104] #1: ffffffff96402388 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 42.011254][ T1104] [ 42.011254][ T1104] stack backtrace: [ 42.011618][ T1104] CPU: 2 UID: 0 PID: 1104 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 42.011902][ T1104] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 42.012105][ T1104] Call Trace: [ 42.012230][ T1104] [ 42.012320][ T1104] dump_stack_lvl+0xb0/0xd0 [ 42.012488][ T1104] lockdep_rcu_suspicious+0x1ea/0x280 [ 42.012652][ T1104] napi_by_id+0x134/0x170 [ 42.012778][ T1104] netdev_nl_napi_set_doit+0xeb/0x640 [ 42.012942][ T1104] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 42.013145][ T1104] ? __nla_parse+0x26/0x30 [ 42.013307][ T1104] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 42.013552][ T1104] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 42.013716][ T1104] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 42.013916][ T1104] ? __pfx___lock_release+0x10/0x10 [ 42.014078][ T1104] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 42.014248][ T1104] ? validate_chain+0x1fe/0xae0 [ 42.014418][ T1104] genl_family_rcv_msg+0x347/0x5b0 [ 42.014581][ T1104] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 42.014741][ T1104] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 42.014954][ T1104] genl_rcv_msg+0xa3/0x140 [ 42.015116][ T1104] netlink_rcv_skb+0x130/0x360 [ 42.015276][ T1104] ? __pfx_genl_rcv_msg+0x10/0x10 [ 42.015440][ T1104] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 42.015619][ T1104] ? genl_rcv+0x19/0x40 [ 42.015741][ T1104] ? __pfx_down_read+0x10/0x10 [ 42.015906][ T1104] ? netlink_deliver_tap+0x13e/0x340 [ 42.016074][ T1104] genl_rcv+0x28/0x40 [ 42.016197][ T1104] netlink_unicast+0x44b/0x710 [ 42.016363][ T1104] ? __pfx_netlink_unicast+0x10/0x10 [ 42.016530][ T1104] ? __wake_up+0x44/0x60 [ 42.016656][ T1104] netlink_sendmsg+0x723/0xbe0 [ 42.016821][ T1104] ? __pfx_netlink_sendmsg+0x10/0x10 [ 42.016987][ T1104] ? fdget+0x52/0x1e0 [ 42.017117][ T1104] __sys_sendto+0x377/0x400 [ 42.017280][ T1104] ? __pfx___sys_sendto+0x10/0x10 [ 42.017454][ T1104] ? do_user_addr_fault+0x972/0xe30 [ 42.017617][ T1104] ? __pfx___lock_release+0x10/0x10 [ 42.017778][ T1104] ? __up_read+0x1a7/0x780 [ 42.017939][ T1104] ? trace_lock_acquire+0x14d/0x1f0 [ 42.018103][ T1104] ? __pfx___up_read+0x10/0x10 [ 42.018267][ T1104] ? do_user_addr_fault+0x972/0xe30 [ 42.018437][ T1104] ? do_user_addr_fault+0x97c/0xe30 [ 42.018601][ T1104] __x64_sys_sendto+0xe0/0x1c0 [ 42.018763][ T1104] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 42.018966][ T1104] do_syscall_64+0xc1/0x1d0 [ 42.019128][ T1104] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 42.019327][ T1104] RIP: 0033:0x7f99b1635700 [ 42.019498][ T1104] 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 [ 42.020051][ T1104] RSP: 002b:00007ffd5c8eb7f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 42.020295][ T1104] RAX: ffffffffffffffda RBX: 00007ffd5c8eb810 RCX: 00007f99b1635700 [ 42.020532][ T1104] RDX: 0000000000000034 RSI: 00007f99b14a2270 RDI: 0000000000000005 [ 42.020782][ T1104] RBP: 00007f99b14a2010 R08: 0000000000000000 R09: 0000000000000000 [ 42.021013][ T1104] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000e37b2f0 [ 42.021246][ T1104] R13: 00007f99b14a2010 R14: 000000000e37b310 R15: 00007f99b1730000 [ 42.021494][ T1104]