[ 4273.543583][T15828] netdevsim netdevsim377 eni377np1: renamed from eth0 [ 4273.646117][T15830] netdevsim netdevsim661 eni661np1: renamed from eth1 [ 4275.707166][T15857] [ 4275.707380][T15857] ============================= [ 4275.707672][T15857] WARNING: suspicious RCU usage [ 4275.708212][T15857] 6.12.0-rc6-virtme #1 Not tainted [ 4275.708456][T15857] ----------------------------- [ 4275.708650][T15857] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4275.709000][T15857] [ 4275.709000][T15857] other info that might help us debug this: [ 4275.709000][T15857] [ 4275.710164][T15857] [ 4275.710164][T15857] rcu_scheduler_active = 2, debug_locks = 1 [ 4275.710528][T15857] 2 locks held by busy_poller/15857: [ 4275.710726][T15857] #0: ffffffff8d459fb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4275.711028][T15857] #1: ffffffff8d402648 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4275.711362][T15857] [ 4275.711362][T15857] stack backtrace: [ 4275.711607][T15857] CPU: 2 UID: 0 PID: 15857 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4275.711914][T15857] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4275.712139][T15857] Call Trace: [ 4275.712275][T15857] [ 4275.712368][T15857] dump_stack_lvl+0xb0/0xd0 [ 4275.712597][T15857] lockdep_rcu_suspicious+0x1ea/0x280 [ 4275.712846][T15857] napi_by_id+0x134/0x170 [ 4275.713034][T15857] netdev_nl_napi_set_doit+0xeb/0x640 [ 4275.713276][T15857] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4275.713596][T15857] ? __nla_parse+0x26/0x30 [ 4275.713798][T15857] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4275.714069][T15857] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4275.714243][T15857] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4275.714458][T15857] ? __pfx___lock_release+0x10/0x10 [ 4275.714635][T15857] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4275.714818][T15857] ? validate_chain+0x1fe/0xae0 [ 4275.715001][T15857] genl_family_rcv_msg+0x347/0x5b0 [ 4275.715177][T15857] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4275.715395][T15857] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4275.715708][T15857] genl_rcv_msg+0xa3/0x140 [ 4275.715953][T15857] netlink_rcv_skb+0x130/0x360 [ 4275.716192][T15857] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4275.716415][T15857] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4275.716611][T15857] ? genl_rcv+0x19/0x40 [ 4275.716747][T15857] ? __pfx_down_read+0x10/0x10 [ 4275.716937][T15857] ? netlink_deliver_tap+0x13e/0x340 [ 4275.717125][T15857] genl_rcv+0x28/0x40 [ 4275.717259][T15857] netlink_unicast+0x44b/0x710 [ 4275.717438][T15857] ? __pfx_netlink_unicast+0x10/0x10 [ 4275.717613][T15857] ? __wake_up+0x44/0x60 [ 4275.717754][T15857] netlink_sendmsg+0x723/0xbe0 [ 4275.717948][T15857] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4275.718187][T15857] ? fdget+0x52/0x1e0 [ 4275.718376][T15857] __sys_sendto+0x377/0x400 [ 4275.718571][T15857] ? __pfx___sys_sendto+0x10/0x10 [ 4275.718761][T15857] ? do_user_addr_fault+0x972/0xe30 [ 4275.718935][T15857] ? __pfx___lock_release+0x10/0x10 [ 4275.719106][T15857] ? __up_read+0x1a7/0x780 [ 4275.719283][T15857] ? trace_lock_acquire+0x14d/0x1f0 [ 4275.719457][T15857] ? __pfx___up_read+0x10/0x10 [ 4275.719636][T15857] ? do_user_addr_fault+0x972/0xe30 [ 4275.719813][T15857] ? do_user_addr_fault+0x97c/0xe30 [ 4275.720055][T15857] __x64_sys_sendto+0xe0/0x1c0 [ 4275.720300][T15857] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4275.720540][T15857] do_syscall_64+0xc1/0x1d0 [ 4275.720718][T15857] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4275.720944][T15857] RIP: 0033:0x7ff288147700 [ 4275.721162][T15857] 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 [ 4275.721901][T15857] RSP: 002b:00007ffecef5a438 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4275.722166][T15857] RAX: ffffffffffffffda RBX: 00007ffecef5a450 RCX: 00007ff288147700 [ 4275.722426][T15857] RDX: 0000000000000034 RSI: 00007ff287fb4270 RDI: 0000000000000005 [ 4275.722783][T15857] RBP: 00007ff287fb4010 R08: 0000000000000000 R09: 0000000000000000 [ 4275.723138][T15857] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000ddc92f0 [ 4275.723461][T15857] R13: 00007ff287fb4010 R14: 000000000ddc9310 R15: 00007ff288242000 [ 4275.723741][T15857]