[ 4260.746811][ T1263] netdevsim netdevsim279 eni279np1: renamed from eth0 [ 4260.770315][ T1262] netdevsim netdevsim686 eni686np1: renamed from eth1 [ 4262.813857][ T1290] [ 4262.814112][ T1290] ============================= [ 4262.814321][ T1290] WARNING: suspicious RCU usage [ 4262.814521][ T1290] 6.12.0-rc6-virtme #1 Not tainted [ 4262.814698][ T1290] ----------------------------- [ 4262.814876][ T1290] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4262.815135][ T1290] [ 4262.815135][ T1290] other info that might help us debug this: [ 4262.815135][ T1290] [ 4262.815462][ T1290] [ 4262.815462][ T1290] rcu_scheduler_active = 2, debug_locks = 1 [ 4262.816019][ T1290] 2 locks held by busy_poller/1290: [ 4262.816197][ T1290] #0: ffffffffa9859e30 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4262.816477][ T1290] #1: ffffffffa9802648 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4262.816792][ T1290] [ 4262.816792][ T1290] stack backtrace: [ 4262.817013][ T1290] CPU: 3 UID: 0 PID: 1290 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4262.817346][ T1290] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4262.817588][ T1290] Call Trace: [ 4262.817729][ T1290] [ 4262.817829][ T1290] dump_stack_lvl+0xb0/0xd0 [ 4262.818021][ T1290] lockdep_rcu_suspicious+0x1ea/0x280 [ 4262.818208][ T1290] napi_by_id+0x134/0x170 [ 4262.818359][ T1290] netdev_nl_napi_set_doit+0xeb/0x640 [ 4262.818533][ T1290] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4262.818752][ T1290] ? __nla_parse+0x26/0x30 [ 4262.818932][ T1290] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4262.819194][ T1290] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4262.819370][ T1290] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4262.819580][ T1290] ? __pfx___lock_release+0x10/0x10 [ 4262.819747][ T1290] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4262.819925][ T1290] ? validate_chain+0x1fe/0xae0 [ 4262.820102][ T1290] genl_family_rcv_msg+0x347/0x5b0 [ 4262.820282][ T1290] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4262.820450][ T1290] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4262.820676][ T1290] genl_rcv_msg+0xa3/0x140 [ 4262.820847][ T1290] netlink_rcv_skb+0x130/0x360 [ 4262.821014][ T1290] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4262.821187][ T1290] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4262.821370][ T1290] ? genl_rcv+0x19/0x40 [ 4262.821497][ T1290] ? __pfx_down_read+0x10/0x10 [ 4262.821680][ T1290] ? netlink_deliver_tap+0x13e/0x340 [ 4262.821862][ T1290] genl_rcv+0x28/0x40 [ 4262.821994][ T1290] netlink_unicast+0x44b/0x710 [ 4262.822168][ T1290] ? __pfx_netlink_unicast+0x10/0x10 [ 4262.822340][ T1290] ? __wake_up+0x44/0x60 [ 4262.822472][ T1290] netlink_sendmsg+0x723/0xbe0 [ 4262.822646][ T1290] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4262.822819][ T1290] ? fdget+0x52/0x1e0 [ 4262.822954][ T1290] __sys_sendto+0x377/0x400 [ 4262.823129][ T1290] ? __pfx___sys_sendto+0x10/0x10 [ 4262.823311][ T1290] ? do_user_addr_fault+0x972/0xe30 [ 4262.823484][ T1290] ? __pfx___lock_release+0x10/0x10 [ 4262.823654][ T1290] ? __up_read+0x1a7/0x780 [ 4262.823826][ T1290] ? trace_lock_acquire+0x14d/0x1f0 [ 4262.824000][ T1290] ? __pfx___up_read+0x10/0x10 [ 4262.824173][ T1290] ? do_user_addr_fault+0x972/0xe30 [ 4262.824346][ T1290] ? do_user_addr_fault+0x97c/0xe30 [ 4262.824522][ T1290] __x64_sys_sendto+0xe0/0x1c0 [ 4262.824691][ T1290] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4262.824899][ T1290] do_syscall_64+0xc1/0x1d0 [ 4262.825074][ T1290] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4262.825283][ T1290] RIP: 0033:0x7fbf5adc9700 [ 4262.825460][ T1290] 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 [ 4262.826044][ T1290] RSP: 002b:00007fffe2e20308 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4262.826298][ T1290] RAX: ffffffffffffffda RBX: 00007fffe2e20320 RCX: 00007fbf5adc9700 [ 4262.826551][ T1290] RDX: 0000000000000034 RSI: 00007fbf5ac36270 RDI: 0000000000000005 [ 4262.826800][ T1290] RBP: 00007fbf5ac36010 R08: 0000000000000000 R09: 0000000000000000 [ 4262.827091][ T1290] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000277012f0 [ 4262.827351][ T1290] R13: 00007fbf5ac36010 R14: 0000000027701310 R15: 00007fbf5aec4000 [ 4262.827624][ T1290]