[ 4469.360207][T21076] ------------[ cut here ]------------
[ 4469.360642][T21076] WARNING: CPU: 0 PID: 21076 at ./include/net/netdev_lock.h:52 __netdev_update_features+0x9c1/0xde0
[ 4469.361091][T21076] Modules linked in: netdevsim psample act_mirred cls_flower sch_ingress vxlan ip6t_rpfilter xfrm_user l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT ipt_REJECT nft_compat nf_tables
[ 4469.362158][T21076] CPU: 0 UID: 0 PID: 21076 Comm: busy_poll_test. Not tainted 6.14.0-rc5-virtme #1
[ 4469.362704][T21076] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4469.362968][T21076] RIP: 0010:__netdev_update_features+0x9c1/0xde0
[ 4469.363247][T21076] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
[ 4469.364146][T21076] RSP: 0018:ffffc90000667528 EFLAGS: 00010246
[ 4469.364433][T21076] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4469.364748][T21076] RDX: 0000000000000000 RSI: ffff888011d62cd0 RDI: ffff8880027350f8
[ 4469.365059][T21076] RBP: ffffffffa5a53580 R08: 0000000000000000 R09: fffffbfff4702504
[ 4469.365388][T21076] R10: ffffffffa3812827 R11: ffff8880027345c0 R12: 0000000000000000
[ 4469.365712][T21076] R13: ffff888011d62130 R14: ffff888011d62008 R15: ffff888011d62000
[ 4469.366029][T21076] FS: 00007fce03f78740(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[ 4469.366405][T21076] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4469.366675][T21076] CR2: 0000564205628f88 CR3: 0000000005448006 CR4: 0000000000772ef0
[ 4469.366986][T21076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4469.367309][T21076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4469.367619][T21076] PKRU: 55555554
[ 4469.367781][T21076] Call Trace:
[ 4469.367940][T21076]
[ 4469.368053][T21076] ? __netdev_update_features+0x9c1/0xde0
[ 4469.368283][T21076] ? __warn+0xd1/0x1c0
[ 4469.368445][T21076] ? __netdev_update_features+0x9c1/0xde0
[ 4469.368653][T21076] ? report_bug+0x28c/0x2d0
[ 4469.368873][T21076] ? handle_bug+0x54/0xa0
[ 4469.369031][T21076] ? exc_invalid_op+0x18/0x50
[ 4469.369248][T21076] ? asm_exc_invalid_op+0x1a/0x20
[ 4469.369481][T21076] ? __netdev_update_features+0x9c1/0xde0
[ 4469.369693][T21076] ? __netdev_update_features+0x9b8/0xde0
[ 4469.369905][T21076] ? __pfx___netdev_update_features+0x10/0x10
[ 4469.370179][T21076] ? _raw_spin_unlock_irq+0x28/0x50
[ 4469.370396][T21076] ? netdev_register_kobject+0x264/0x2f0
[ 4469.370615][T21076] register_netdevice+0xd46/0x1360
[ 4469.370838][T21076] ? __pfx_register_netdevice+0x10/0x10
[ 4469.371044][T21076] ? __debugfs_create_file+0x364/0x5b0
[ 4469.371285][T21076] nsim_create+0x5b7/0x740 [netdevsim]
[ 4469.371509][T21076] __nsim_dev_port_add+0x22f/0x6e0 [netdevsim]
[ 4469.371789][T21076] ? mark_lock+0x38/0x3e0
[ 4469.371956][T21076] ? __pfx___nsim_dev_port_add+0x10/0x10 [netdevsim]
[ 4469.372243][T21076] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 4469.372512][T21076] nsim_dev_port_add_all+0x39/0xf0 [netdevsim]
[ 4469.372787][T21076] nsim_drv_probe+0x61e/0x8b0 [netdevsim]
[ 4469.373009][T21076] ? __pfx_nsim_drv_probe+0x10/0x10 [netdevsim]
[ 4469.373281][T21076] ? kernfs_create_link+0x173/0x240
[ 4469.373490][T21076] ? kernfs_put+0x1c/0x40
[ 4469.373649][T21076] ? sysfs_do_create_link_sd+0x8c/0x100
[ 4469.373869][T21076] really_probe+0x1df/0x920
[ 4469.374084][T21076] __driver_probe_device+0x2e6/0x3e0
[ 4469.374307][T21076] driver_probe_device+0x49/0x140
[ 4469.374516][T21076] __device_attach_driver+0x192/0x2b0
[ 4469.374728][T21076] ? __pfx___device_attach_driver+0x10/0x10
[ 4469.374981][T21076] bus_for_each_drv+0x107/0x1a0
[ 4469.375199][T21076] ? __pfx_bus_for_each_drv+0x10/0x10
[ 4469.375407][T21076] ? bus_to_subsys+0xd5/0x110
[ 4469.375626][T21076] ? __pfx___lock_release+0x10/0x10
[ 4469.375841][T21076] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 4469.376054][T21076] __device_attach+0x1a3/0x3f0
[ 4469.376271][T21076] ? __pfx___device_attach+0x10/0x10
[ 4469.376476][T21076] ? bus_to_subsys+0xd5/0x110
[ 4469.376684][T21076] ? do_raw_spin_unlock+0x58/0x220
[ 4469.376898][T21076] bus_probe_device+0x133/0x180
[ 4469.377108][T21076] device_add+0x99d/0x1110
[ 4469.377332][T21076] ? __pfx_device_add+0x10/0x10
[ 4469.377537][T21076] ? __init_waitqueue_head+0xcf/0x150
[ 4469.377755][T21076] new_device_store+0x393/0x690 [netdevsim]
[ 4469.378020][T21076] ? __pfx_new_device_store+0x10/0x10 [netdevsim]
[ 4469.378301][T21076] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4469.378507][T21076] ? sysfs_file_ops+0x11e/0x170
[ 4469.378720][T21076] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4469.378932][T21076] kernfs_fop_write_iter+0x2ba/0x460
[ 4469.379146][T21076] vfs_write+0xa87/0x11e0
[ 4469.379323][T21076] ? __pfx_vfs_write+0x10/0x10
[ 4469.379539][T21076] ? __lock_release+0x103/0x460
[ 4469.379743][T21076] ? do_user_addr_fault+0x972/0xe30
[ 4469.379965][T21076] ? __pfx___up_read+0x10/0x10
[ 4469.380184][T21076] ksys_write+0xf8/0x1d0
[ 4469.380343][T21076] ? __pfx_ksys_write+0x10/0x10
[ 4469.380552][T21076] ? do_user_addr_fault+0x97c/0xe30
[ 4469.380771][T21076] do_syscall_64+0xc1/0x1d0
[ 4469.380981][T21076] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 4469.381246][T21076] RIP: 0033:0x7fce040b9b77
[ 4469.381465][T21076] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[ 4469.382195][T21076] RSP: 002b:00007fff34efefd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4469.382508][T21076] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fce040b9b77
[ 4469.382815][T21076] RDX: 0000000000000004 RSI: 0000564205627f80 RDI: 0000000000000001
[ 4469.383126][T21076] RBP: 0000564205627f80 R08: 0000000000000003 R09: 0000000000000000
[ 4469.383447][T21076] R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000004
[ 4469.383757][T21076] R13: 00007fce04175760 R14: 0000000000000004 R15: 00007fce041709c0
[ 4469.384085][T21076]
[ 4469.384257][T21076] irq event stamp: 70873
[ 4469.384419][T21076] hardirqs last enabled at (70883): [] __up_console_sem+0x6b/0x80
[ 4469.384785][T21076] hardirqs last disabled at (70892): [] __up_console_sem+0x50/0x80
[ 4469.385141][T21076] softirqs last enabled at (69950): [] handle_softirqs+0x32e/0x5c0
[ 4469.385518][T21076] softirqs last disabled at (69807): [] __irq_exit_rcu+0xc4/0x100
[ 4469.385877][T21076] ---[ end trace 0000000000000000 ]---
[ 4469.402801][T21076] ------------[ cut here ]------------
[ 4469.403158][T21076] WARNING: CPU: 2 PID: 21076 at ./include/net/netdev_lock.h:52 __netdev_update_features+0x9c1/0xde0
[ 4469.403609][T21076] Modules linked in: netdevsim psample act_mirred cls_flower sch_ingress vxlan ip6t_rpfilter xfrm_user l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT ipt_REJECT nft_compat nf_tables
[ 4469.404756][T21076] CPU: 2 UID: 0 PID: 21076 Comm: busy_poll_test. Tainted: G W 6.14.0-rc5-virtme #1
[ 4469.405197][T21076] Tainted: [W]=WARN
[ 4469.405532][T21076] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4469.405811][T21076] RIP: 0010:__netdev_update_features+0x9c1/0xde0
[ 4469.406092][T21076] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
[ 4469.406839][T21076] RSP: 0018:ffffc90000667528 EFLAGS: 00010246
[ 4469.407122][T21076] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4469.407454][T21076] RDX: 0000000000000000 RSI: ffff8880130aacd0 RDI: ffff8880027350f8
[ 4469.407778][T21076] RBP: ffffffffa5a53580 R08: 0000000000000000 R09: fffffbfff4702504
[ 4469.408098][T21076] R10: ffffffffa3812827 R11: ffff8880027345c0 R12: 0000000000000000
[ 4469.408438][T21076] R13: ffff8880130aa130 R14: ffff8880130aa008 R15: ffff8880130aa000
[ 4469.408761][T21076] FS: 00007fce03f78740(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[ 4469.409136][T21076] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4469.409418][T21076] CR2: 000055741e930000 CR3: 0000000005448001 CR4: 0000000000772ef0
[ 4469.409743][T21076] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4469.410080][T21076] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4469.410412][T21076] PKRU: 55555554
[ 4469.410586][T21076] Call Trace:
[ 4469.410757][T21076]
[ 4469.410886][T21076] ? __netdev_update_features+0x9c1/0xde0
[ 4469.411114][T21076] ? __warn+0xd1/0x1c0
[ 4469.411306][T21076] ? __netdev_update_features+0x9c1/0xde0
[ 4469.411529][T21076] ? report_bug+0x28c/0x2d0
[ 4469.411755][T21076] ? handle_bug+0x54/0xa0
[ 4469.411930][T21076] ? exc_invalid_op+0x18/0x50
[ 4469.412154][T21076] ? asm_exc_invalid_op+0x1a/0x20
[ 4469.412400][T21076] ? __netdev_update_features+0x9c1/0xde0
[ 4469.412623][T21076] ? __netdev_update_features+0x9b8/0xde0
[ 4469.412853][T21076] ? __pfx___netdev_update_features+0x10/0x10
[ 4469.413134][T21076] ? _raw_spin_unlock_irq+0x28/0x50
[ 4469.413375][T21076] ? netdev_register_kobject+0x264/0x2f0
[ 4469.413608][T21076] register_netdevice+0xd46/0x1360
[ 4469.413834][T21076] ? __pfx_register_netdevice+0x10/0x10
[ 4469.414056][T21076] ? __debugfs_create_file+0x364/0x5b0
[ 4469.414308][T21076] nsim_create+0x5b7/0x740 [netdevsim]
[ 4469.414551][T21076] __nsim_dev_port_add+0x22f/0x6e0 [netdevsim]
[ 4469.414831][T21076] ? mark_lock+0x38/0x3e0
[ 4469.415010][T21076] ? __pfx___nsim_dev_port_add+0x10/0x10 [netdevsim]
[ 4469.415304][T21076] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 4469.415600][T21076] nsim_dev_port_add_all+0x39/0xf0 [netdevsim]
[ 4469.415886][T21076] nsim_drv_probe+0x61e/0x8b0 [netdevsim]
[ 4469.416123][T21076] ? __pfx_nsim_drv_probe+0x10/0x10 [netdevsim]
[ 4469.416409][T21076] ? kernfs_create_link+0x173/0x240
[ 4469.416634][T21076] ? kernfs_put+0x1c/0x40
[ 4469.416805][T21076] ? sysfs_do_create_link_sd+0x8c/0x100
[ 4469.417034][T21076] really_probe+0x1df/0x920
[ 4469.417272][T21076] __driver_probe_device+0x2e6/0x3e0
[ 4469.417505][T21076] driver_probe_device+0x49/0x140
[ 4469.417726][T21076] __device_attach_driver+0x192/0x2b0
[ 4469.417950][T21076] ? __pfx___device_attach_driver+0x10/0x10
[ 4469.418228][T21076] bus_for_each_drv+0x107/0x1a0
[ 4469.418453][T21076] ? __pfx_bus_for_each_drv+0x10/0x10
[ 4469.418669][T21076] ? bus_to_subsys+0xd5/0x110
[ 4469.418888][T21076] ? __pfx___lock_release+0x10/0x10
[ 4469.419112][T21076] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 4469.419348][T21076] __device_attach+0x1a3/0x3f0
[ 4469.419570][T21076] ? __pfx___device_attach+0x10/0x10
[ 4469.419791][T21076] ? bus_to_subsys+0xd5/0x110
[ 4469.420017][T21076] ? do_raw_spin_unlock+0x58/0x220
[ 4469.420256][T21076] bus_probe_device+0x133/0x180
[ 4469.420486][T21076] device_add+0x99d/0x1110
[ 4469.420718][T21076] ? __pfx_device_add+0x10/0x10
[ 4469.420945][T21076] ? __init_waitqueue_head+0xcf/0x150
[ 4469.421191][T21076] new_device_store+0x393/0x690 [netdevsim]
[ 4469.421478][T21076] ? __pfx_new_device_store+0x10/0x10 [netdevsim]
[ 4469.421764][T21076] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4469.422304][T21076] ? sysfs_file_ops+0x11e/0x170
[ 4469.422533][T21076] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4469.422759][T21076] kernfs_fop_write_iter+0x2ba/0x460
[ 4469.422987][T21076] vfs_write+0xa87/0x11e0
[ 4469.423180][T21076] ? __pfx_vfs_write+0x10/0x10
[ 4469.423418][T21076] ? find_held_lock+0x2c/0x110
[ 4469.423650][T21076] ? __pfx___lock_release+0x10/0x10
[ 4469.423881][T21076] ksys_write+0xf8/0x1d0
[ 4469.424057][T21076] ? __pfx_ksys_write+0x10/0x10
[ 4469.424437][T21076] do_syscall_64+0xc1/0x1d0
[ 4469.424664][T21076] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 4469.424934][T21076] RIP: 0033:0x7fce040b9b77
[ 4469.425315][T21076] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
[ 4469.426070][T21076] RSP: 002b:00007fff34efefd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4469.426546][T21076] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fce040b9b77
[ 4469.426870][T21076] RDX: 0000000000000004 RSI: 0000564205627f80 RDI: 0000000000000001
[ 4469.427205][T21076] RBP: 0000564205627f80 R08: 0000000000000000 R09: 00007fce0412c4e0
[ 4469.427530][T21076] R10: 00007fce0412c3e0 R11: 0000000000000246 R12: 0000000000000004
[ 4469.427845][T21076] R13: 00007fce04175760 R14: 0000000000000004 R15: 00007fce041709c0
[ 4469.428330][T21076]
[ 4469.428512][T21076] irq event stamp: 77037
[ 4469.428684][T21076] hardirqs last enabled at (77049): [] __up_console_sem+0x6b/0x80
[ 4469.429056][T21076] hardirqs last disabled at (77060): [] __up_console_sem+0x50/0x80
[ 4469.429431][T21076] softirqs last enabled at (75932): [] handle_softirqs+0x32e/0x5c0
[ 4469.429798][T21076] softirqs last disabled at (75863): [] __irq_exit_rcu+0xc4/0x100
[ 4469.430162][T21076] ---[ end trace 0000000000000000 ]---
[ 4469.498389][T21079] netdevsim netdevsim307 eni307np1: renamed from eth0
[ 4469.526459][T21080] netdevsim netdevsim605 eni605np1: renamed from eth1