[ 4374.574757][T10215] netdevsim netdevsim333 eni333np1: renamed from eth0 [ 4374.669782][T10217] netdevsim netdevsim533 eni533np1: renamed from eth1 [ 4376.809888][T10244] [ 4376.810013][T10244] ============================= [ 4376.810209][T10244] WARNING: suspicious RCU usage [ 4376.810386][T10244] 6.12.0-rc6-virtme #1 Not tainted [ 4376.810548][T10244] ----------------------------- [ 4376.810707][T10244] net/core/dev.c:6300 RCU-list traversed in non-reader section!! [ 4376.810939][T10244] [ 4376.810939][T10244] other info that might help us debug this: [ 4376.810939][T10244] [ 4376.811249][T10244] [ 4376.811249][T10244] rcu_scheduler_active = 2, debug_locks = 1 [ 4376.811496][T10244] 2 locks held by busy_poller/10244: [ 4376.811659][T10244] #0: ffffffff96c59f30 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 [ 4376.811920][T10244] #1: ffffffff96c026c8 (rtnl_mutex){+.+.}-{3:3}, at: netdev_nl_napi_set_doit+0xe4/0x640 [ 4376.812515][T10244] [ 4376.812515][T10244] stack backtrace: [ 4376.812744][T10244] CPU: 1 UID: 0 PID: 10244 Comm: busy_poller Not tainted 6.12.0-rc6-virtme #1 [ 4376.813025][T10244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 4376.813230][T10244] Call Trace: [ 4376.813363][T10244] [ 4376.813452][T10244] dump_stack_lvl+0xb0/0xd0 [ 4376.813620][T10244] lockdep_rcu_suspicious+0x1ea/0x280 [ 4376.813785][T10244] napi_by_id+0x134/0x170 [ 4376.813914][T10244] netdev_nl_napi_set_doit+0xeb/0x640 [ 4376.814077][T10244] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4376.814278][T10244] ? __nla_parse+0x26/0x30 [ 4376.814441][T10244] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x162/0x240 [ 4376.814686][T10244] genl_family_rcv_msg_doit+0x1d4/0x2b0 [ 4376.814847][T10244] ? __pfx_genl_family_rcv_msg_doit+0x10/0x10 [ 4376.815042][T10244] ? __pfx___lock_release+0x10/0x10 [ 4376.815204][T10244] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 4376.815371][T10244] ? validate_chain+0x1fe/0xae0 [ 4376.815540][T10244] genl_family_rcv_msg+0x347/0x5b0 [ 4376.815700][T10244] ? __pfx_genl_family_rcv_msg+0x10/0x10 [ 4376.815869][T10244] ? __pfx_netdev_nl_napi_set_doit+0x10/0x10 [ 4376.816075][T10244] genl_rcv_msg+0xa3/0x140 [ 4376.816235][T10244] netlink_rcv_skb+0x130/0x360 [ 4376.816394][T10244] ? __pfx_genl_rcv_msg+0x10/0x10 [ 4376.816592][T10244] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 4376.816768][T10244] ? genl_rcv+0x19/0x40 [ 4376.816894][T10244] ? __pfx_down_read+0x10/0x10 [ 4376.817060][T10244] ? netlink_deliver_tap+0x13e/0x340 [ 4376.817233][T10244] genl_rcv+0x28/0x40 [ 4376.817363][T10244] netlink_unicast+0x44b/0x710 [ 4376.817532][T10244] ? __pfx_netlink_unicast+0x10/0x10 [ 4376.817709][T10244] ? __wake_up+0x44/0x60 [ 4376.817836][T10244] netlink_sendmsg+0x723/0xbe0 [ 4376.818000][T10244] ? __pfx_netlink_sendmsg+0x10/0x10 [ 4376.818164][T10244] ? fdget+0x52/0x1e0 [ 4376.818293][T10244] __sys_sendto+0x377/0x400 [ 4376.818456][T10244] ? __pfx___sys_sendto+0x10/0x10 [ 4376.818617][T10244] ? find_held_lock+0x2c/0x110 [ 4376.818789][T10244] ? __might_fault+0xc3/0x170 [ 4376.818946][T10244] ? lock_acquire+0x32/0xc0 [ 4376.819104][T10244] ? trace_rseq_update+0xe2/0x140 [ 4376.819263][T10244] ? rseq_update_cpu_node_id+0xe6/0x140 [ 4376.819424][T10244] ? __rseq_handle_notify_resume+0x288/0x3e0 [ 4376.819617][T10244] ? do_user_addr_fault+0x374/0xe30 [ 4376.819777][T10244] ? __pfx___rseq_handle_notify_resume+0x10/0x10 [ 4376.819982][T10244] __x64_sys_sendto+0xe0/0x1c0 [ 4376.820141][T10244] ? lockdep_hardirqs_on_prepare+0x275/0x410 [ 4376.820336][T10244] do_syscall_64+0xc1/0x1d0 [ 4376.820506][T10244] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 4376.820703][T10244] RIP: 0033:0x7f4b4154f700 [ 4376.820870][T10244] 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 [ 4376.821420][T10244] RSP: 002b:00007ffc0b2ea3a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 4376.821660][T10244] RAX: ffffffffffffffda RBX: 00007ffc0b2ea3c0 RCX: 00007f4b4154f700 [ 4376.821898][T10244] RDX: 0000000000000034 RSI: 00007f4b413bc270 RDI: 0000000000000005 [ 4376.822138][T10244] RBP: 00007f4b413bc010 R08: 0000000000000000 R09: 0000000000000000 [ 4376.822373][T10244] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000031972f0 [ 4376.822611][T10244] R13: 00007f4b413bc010 R14: 0000000003197310 R15: 00007f4b4164a000 [ 4376.822861][T10244]