[ 4333.672287][T10922] netdevsim netdevsim614 eni614np1: renamed from eth1 [ 4333.767230][T10985] netdevsim netdevsim414 eni414np1: renamed from eth0 [ 4335.736504][T11012] [ 4335.736805][T11012] ============================= [ 4335.736982][T11012] WARNING: suspicious RCU usage [ 4335.737153][T11012] 6.12.0-rc6-virtme #1 Not tainted [ 4335.737337][T11012] ----------------------------- [ 4335.737907][T11012] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4335.738153][T11012] [ 4335.738153][T11012] other info that might help us debug this: [ 4335.738153][T11012] [ 4335.738511][T11012] [ 4335.738511][T11012] rcu_scheduler_active = 2, debug_locks = 1 [ 4335.738765][T11012] 2 locks held by busy_poller/11012: [ 4335.738934][T11012] #0: ffffffff96c59fb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4335.739230][T11012] #1: ffffffff96c02648 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4335.739534][T11012] [ 4335.739534][T11012] stack backtrace: [ 4335.739739][T11012] CPU: 0 UID: 0 PID: 11012 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4335.740028][T11012] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4335.740242][T11012] Call Trace: [ 4335.740371][T11012] [ 4335.740459][T11012] dump_stack_lvl+0xb0/0xd0 [ 4335.740640][T11012] lockdep_rcu_suspicious+0x1ea/0x280 [ 4335.740811][T11012] napi_by_id+0x134/0x170 [ 4335.740940][T11012] netdev_nl_napi_set_doit+0xeb/0x640 [ 4335.741103][T11012] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4335.741309][T11012] ? __nla_parse+0x26/0x30 [ 4335.741479][T11012] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4335.741723][T11012] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4335.741903][T11012] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4335.742116][T11012] ? __pfx___lock_release+0x10/0x10 [ 4335.742282][T11012] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4335.742452][T11012] ? validate_chain+0x1fe/0xae0 [ 4335.742627][T11012] genl_family_rcv_msg+0x347/0x5b0 [ 4335.742797][T11012] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4335.742965][T11012] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4335.743181][T11012] genl_rcv_msg+0xa3/0x140 [ 4335.743347][T11012] netlink_rcv_skb+0x130/0x360 [ 4335.743510][T11012] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4335.743678][T11012] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4335.743856][T11012] ? genl_rcv+0x19/0x40 [ 4335.743990][T11012] ? __pfx_down_read+0x10/0x10 [ 4335.744157][T11012] ? netlink_deliver_tap+0x13e/0x340 [ 4335.744345][T11012] genl_rcv+0x28/0x40 [ 4335.744470][T11012] netlink_unicast+0x44b/0x710 [ 4335.744638][T11012] ? __pfx_netlink_unicast+0x10/0x10 [ 4335.744806][T11012] ? __wake_up+0x44/0x60 [ 4335.744938][T11012] netlink_sendmsg+0x723/0xbe0 [ 4335.745109][T11012] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4335.745278][T11012] ? fdget+0x52/0x1e0 [ 4335.745418][T11012] __sys_sendto+0x377/0x400 [ 4335.745586][T11012] ? __pfx___sys_sendto+0x10/0x10 [ 4335.745764][T11012] ? do_user_addr_fault+0x972/0xe30 [ 4335.745931][T11012] ? __pfx___lock_release+0x10/0x10 [ 4335.746096][T11012] ? __up_read+0x1a7/0x780 [ 4335.746263][T11012] ? trace_lock_acquire+0x14d/0x1f0 [ 4335.746427][T11012] ? __pfx___up_read+0x10/0x10 [ 4335.746598][T11012] ? do_user_addr_fault+0x972/0xe30 [ 4335.746768][T11012] ? do_user_addr_fault+0x97c/0xe30 [ 4335.746934][T11012] __x64_sys_sendto+0xe0/0x1c0 [ 4335.747097][T11012] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4335.747303][T11012] do_syscall_64+0xc1/0x1d0 [ 4335.747472][T11012] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4335.747674][T11012] RIP: 0033:0x7fd8caea8700 [ 4335.747847][T11012] 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 [ 4335.748424][T11012] RSP: 002b:00007ffcca53b588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4335.748674][T11012] RAX: ffffffffffffffda RBX: 00007ffcca53b5a0 RCX: 00007fd8caea8700 [ 4335.748915][T11012] RDX: 0000000000000034 RSI: 00007fd8cad15270 RDI: 0000000000000005 [ 4335.749157][T11012] RBP: 00007fd8cad15010 R08: 0000000000000000 R09: 0000000000000000 [ 4335.749407][T11012] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000368602f0 [ 4335.749647][T11012] R13: 00007fd8cad15010 R14: 0000000036860310 R15: 00007fd8cafa3000 [ 4335.749908][T11012]