[ 4467.235868][T20831] ------------[ cut here ]------------
[ 4467.236321][T20831] WARNING: CPU: 3 PID: 20831 at ./include/net/netdev_lock.h:52 __netdev_update_features+0x9c1/0xde0
[ 4467.236752][T20831] Modules linked in: netdevsim psample vxlan act_mirred cls_matchall ip6_gre gre sch_ingress nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT ipt_REJECT nft_compat nf_tables
[ 4467.237603][T20831] CPU: 3 UID: 0 PID: 20831 Comm: busy_poll_test. Not tainted 6.14.0-rc5-virtme #1
[ 4467.237984][T20831] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4467.238273][T20831] RIP: 0010:__netdev_update_features+0x9c1/0xde0
[ 4467.238565][T20831] 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
[ 4467.239315][T20831] RSP: 0018:ffffc90001817528 EFLAGS: 00010246
[ 4467.239586][T20831] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4467.239900][T20831] RDX: 0000000000000000 RSI: ffff8880108facd0 RDI: ffff88800ad98b78
[ 4467.240256][T20831] RBP: ffffffffa5653580 R08: 0000000000000000 R09: fffffbfff4682504
[ 4467.240575][T20831] R10: ffffffffa3412827 R11: ffff88800ad98040 R12: 0000000000000000
[ 4467.240888][T20831] R13: ffff8880108fa130 R14: ffff8880108fa008 R15: ffff8880108fa000
[ 4467.241219][T20831] FS: 00007fdbc19fe740(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[ 4467.241582][T20831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4467.241848][T20831] CR2: 000055b5d2c5ff88 CR3: 000000000d22c004 CR4: 0000000000772ef0
[ 4467.242181][T20831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4467.242493][T20831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4467.242806][T20831] PKRU: 55555554
[ 4467.243294][T20831] Call Trace:
[ 4467.243461][T20831]
[ 4467.243577][T20831] ? __netdev_update_features+0x9c1/0xde0
[ 4467.243798][T20831] ? __warn+0xd1/0x1c0
[ 4467.243960][T20831] ? __netdev_update_features+0x9c1/0xde0
[ 4467.244183][T20831] ? report_bug+0x28c/0x2d0
[ 4467.244398][T20831] ? handle_bug+0x54/0xa0
[ 4467.244560][T20831] ? exc_invalid_op+0x18/0x50
[ 4467.244767][T20831] ? asm_exc_invalid_op+0x1a/0x20
[ 4467.244990][T20831] ? __netdev_update_features+0x9c1/0xde0
[ 4467.245217][T20831] ? __netdev_update_features+0x9b8/0xde0
[ 4467.245433][T20831] ? __pfx___netdev_update_features+0x10/0x10
[ 4467.245698][T20831] ? _raw_spin_unlock_irq+0x28/0x50
[ 4467.245913][T20831] ? netdev_register_kobject+0x264/0x2f0
[ 4467.246141][T20831] register_netdevice+0xd46/0x1360
[ 4467.246362][T20831] ? __pfx_register_netdevice+0x10/0x10
[ 4467.246573][T20831] ? __debugfs_create_file+0x364/0x5b0
[ 4467.246802][T20831] nsim_create+0x5b7/0x740 [netdevsim]
[ 4467.247039][T20831] __nsim_dev_port_add+0x22f/0x6e0 [netdevsim]
[ 4467.247310][T20831] ? mark_lock+0x38/0x3e0
[ 4467.247476][T20831] ? __pfx___nsim_dev_port_add+0x10/0x10 [netdevsim]
[ 4467.247751][T20831] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 4467.248045][T20831] nsim_dev_port_add_all+0x39/0xf0 [netdevsim]
[ 4467.248322][T20831] nsim_drv_probe+0x61e/0x8b0 [netdevsim]
[ 4467.248543][T20831] ? __pfx_nsim_drv_probe+0x10/0x10 [netdevsim]
[ 4467.248808][T20831] ? kernfs_create_link+0x173/0x240
[ 4467.249033][T20831] ? kernfs_put+0x1c/0x40
[ 4467.249198][T20831] ? sysfs_do_create_link_sd+0x8c/0x100
[ 4467.249418][T20831] really_probe+0x1df/0x920
[ 4467.249633][T20831] __driver_probe_device+0x2e6/0x3e0
[ 4467.249849][T20831] driver_probe_device+0x49/0x140
[ 4467.250076][T20831] __device_attach_driver+0x192/0x2b0
[ 4467.250289][T20831] ? __pfx___device_attach_driver+0x10/0x10
[ 4467.250545][T20831] bus_for_each_drv+0x107/0x1a0
[ 4467.250760][T20831] ? __pfx_bus_for_each_drv+0x10/0x10
[ 4467.250966][T20831] ? bus_to_subsys+0xd5/0x110
[ 4467.251185][T20831] ? __pfx___lock_release+0x10/0x10
[ 4467.251399][T20831] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 4467.251616][T20831] __device_attach+0x1a3/0x3f0
[ 4467.251826][T20831] ? __pfx___device_attach+0x10/0x10
[ 4467.252045][T20831] ? bus_to_subsys+0xd5/0x110
[ 4467.252257][T20831] ? do_raw_spin_unlock+0x58/0x220
[ 4467.252473][T20831] bus_probe_device+0x133/0x180
[ 4467.252686][T20831] device_add+0x99d/0x1110
[ 4467.252904][T20831] ? __pfx_device_add+0x10/0x10
[ 4467.253132][T20831] ? __init_waitqueue_head+0xcf/0x150
[ 4467.253354][T20831] new_device_store+0x393/0x690 [netdevsim]
[ 4467.253626][T20831] ? __pfx_new_device_store+0x10/0x10 [netdevsim]
[ 4467.253900][T20831] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4467.254121][T20831] ? sysfs_file_ops+0x11e/0x170
[ 4467.254336][T20831] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4467.254547][T20831] kernfs_fop_write_iter+0x2ba/0x460
[ 4467.254770][T20831] vfs_write+0xa87/0x11e0
[ 4467.254936][T20831] ? __pfx_vfs_write+0x10/0x10
[ 4467.255162][T20831] ? __lock_release+0x103/0x460
[ 4467.255375][T20831] ? do_user_addr_fault+0x972/0xe30
[ 4467.255592][T20831] ? __pfx___up_read+0x10/0x10
[ 4467.255808][T20831] ksys_write+0xf8/0x1d0
[ 4467.255975][T20831] ? __pfx_ksys_write+0x10/0x10
[ 4467.256196][T20831] ? do_user_addr_fault+0x97c/0xe30
[ 4467.256418][T20831] do_syscall_64+0xc1/0x1d0
[ 4467.256629][T20831] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 4467.256885][T20831] RIP: 0033:0x7fdbc1b3fb77
[ 4467.257118][T20831] 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
[ 4467.257849][T20831] RSP: 002b:00007ffc398cc408 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4467.258195][T20831] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdbc1b3fb77
[ 4467.258511][T20831] RDX: 0000000000000004 RSI: 000055b5d2c5ef80 RDI: 0000000000000001
[ 4467.258831][T20831] RBP: 000055b5d2c5ef80 R08: 0000000000000003 R09: 0000000000000000
[ 4467.259159][T20831] R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000004
[ 4467.259483][T20831] R13: 00007fdbc1bfb760 R14: 0000000000000004 R15: 00007fdbc1bf69c0
[ 4467.259815][T20831]
[ 4467.259979][T20831] irq event stamp: 64583
[ 4467.260155][T20831] hardirqs last enabled at (64595): [] __up_console_sem+0x6b/0x80
[ 4467.260521][T20831] hardirqs last disabled at (64604): [] __up_console_sem+0x50/0x80
[ 4467.260880][T20831] softirqs last enabled at (63732): [] handle_softirqs+0x32e/0x5c0
[ 4467.261260][T20831] softirqs last disabled at (63707): [] __irq_exit_rcu+0xc4/0x100
[ 4467.261628][T20831] ---[ end trace 0000000000000000 ]---
[ 4467.277909][T20831] ------------[ cut here ]------------
[ 4467.278291][T20831] WARNING: CPU: 2 PID: 20831 at ./include/net/netdev_lock.h:52 __netdev_update_features+0x9c1/0xde0
[ 4467.278749][T20831] Modules linked in: netdevsim psample vxlan act_mirred cls_matchall ip6_gre gre sch_ingress nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT ipt_REJECT nft_compat nf_tables
[ 4467.279676][T20831] CPU: 2 UID: 0 PID: 20831 Comm: busy_poll_test. Tainted: G W 6.14.0-rc5-virtme #1
[ 4467.280166][T20831] Tainted: [W]=WARN
[ 4467.280370][T20831] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4467.280669][T20831] RIP: 0010:__netdev_update_features+0x9c1/0xde0
[ 4467.280968][T20831] 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
[ 4467.281899][T20831] RSP: 0018:ffffc90001817528 EFLAGS: 00010246
[ 4467.282223][T20831] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4467.282561][T20831] RDX: 0000000000000000 RSI: ffff88800ad8acd0 RDI: ffff88800ad98b78
[ 4467.282906][T20831] RBP: ffffffffa5653580 R08: 0000000000000000 R09: fffffbfff4682504
[ 4467.283389][T20831] R10: ffffffffa3412827 R11: ffff88800ad98040 R12: 0000000000000000
[ 4467.283760][T20831] R13: ffff88800ad8a130 R14: ffff88800ad8a008 R15: ffff88800ad8a000
[ 4467.284124][T20831] FS: 00007fdbc19fe740(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[ 4467.284520][T20831] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4467.284813][T20831] CR2: 00007fac34feb6f0 CR3: 000000000d22c006 CR4: 0000000000772ef0
[ 4467.285182][T20831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4467.285521][T20831] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4467.285851][T20831] PKRU: 55555554
[ 4467.286038][T20831] Call Trace:
[ 4467.286219][T20831]
[ 4467.286362][T20831] ? __netdev_update_features+0x9c1/0xde0
[ 4467.286600][T20831] ? __warn+0xd1/0x1c0
[ 4467.286788][T20831] ? __netdev_update_features+0x9c1/0xde0
[ 4467.287047][T20831] ? report_bug+0x28c/0x2d0
[ 4467.287287][T20831] ? handle_bug+0x54/0xa0
[ 4467.287485][T20831] ? exc_invalid_op+0x18/0x50
[ 4467.287714][T20831] ? asm_exc_invalid_op+0x1a/0x20
[ 4467.287991][T20831] ? __netdev_update_features+0x9c1/0xde0
[ 4467.288242][T20831] ? __netdev_update_features+0x9b8/0xde0
[ 4467.288483][T20831] ? __pfx___netdev_update_features+0x10/0x10
[ 4467.288791][T20831] ? _raw_spin_unlock_irq+0x28/0x50
[ 4467.289052][T20831] ? netdev_register_kobject+0x264/0x2f0
[ 4467.289307][T20831] register_netdevice+0xd46/0x1360
[ 4467.289547][T20831] ? __pfx_register_netdevice+0x10/0x10
[ 4467.289777][T20831] ? __debugfs_create_file+0x364/0x5b0
[ 4467.290028][T20831] nsim_create+0x5b7/0x740 [netdevsim]
[ 4467.290280][T20831] __nsim_dev_port_add+0x22f/0x6e0 [netdevsim]
[ 4467.290595][T20831] ? mark_lock+0x38/0x3e0
[ 4467.290784][T20831] ? __pfx___nsim_dev_port_add+0x10/0x10 [netdevsim]
[ 4467.291100][T20831] ? lockdep_hardirqs_on_prepare+0x275/0x410
[ 4467.291402][T20831] nsim_dev_port_add_all+0x39/0xf0 [netdevsim]
[ 4467.291718][T20831] nsim_drv_probe+0x61e/0x8b0 [netdevsim]
[ 4467.291993][T20831] ? __pfx_nsim_drv_probe+0x10/0x10 [netdevsim]
[ 4467.292316][T20831] ? kernfs_create_link+0x173/0x240
[ 4467.292565][T20831] ? kernfs_put+0x1c/0x40
[ 4467.292751][T20831] ? sysfs_do_create_link_sd+0x8c/0x100
[ 4467.293000][T20831] really_probe+0x1df/0x920
[ 4467.293268][T20831] __driver_probe_device+0x2e6/0x3e0
[ 4467.293510][T20831] driver_probe_device+0x49/0x140
[ 4467.293756][T20831] __device_attach_driver+0x192/0x2b0
[ 4467.294002][T20831] ? __pfx___device_attach_driver+0x10/0x10
[ 4467.294309][T20831] bus_for_each_drv+0x107/0x1a0
[ 4467.294549][T20831] ? __pfx_bus_for_each_drv+0x10/0x10
[ 4467.294782][T20831] ? bus_to_subsys+0xd5/0x110
[ 4467.295038][T20831] ? __pfx___lock_release+0x10/0x10
[ 4467.295275][T20831] ? __pfx_lock_acquire.part.0+0x10/0x10
[ 4467.295518][T20831] __device_attach+0x1a3/0x3f0
[ 4467.295758][T20831] ? __pfx___device_attach+0x10/0x10
[ 4467.295991][T20831] ? bus_to_subsys+0xd5/0x110
[ 4467.296238][T20831] ? do_raw_spin_unlock+0x58/0x220
[ 4467.296484][T20831] bus_probe_device+0x133/0x180
[ 4467.296723][T20831] device_add+0x99d/0x1110
[ 4467.296958][T20831] ? __pfx_device_add+0x10/0x10
[ 4467.297201][T20831] ? __init_waitqueue_head+0xcf/0x150
[ 4467.297454][T20831] new_device_store+0x393/0x690 [netdevsim]
[ 4467.297755][T20831] ? __pfx_new_device_store+0x10/0x10 [netdevsim]
[ 4467.298098][T20831] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4467.298339][T20831] ? sysfs_file_ops+0x11e/0x170
[ 4467.298584][T20831] ? __pfx_sysfs_kf_write+0x10/0x10
[ 4467.298821][T20831] kernfs_fop_write_iter+0x2ba/0x460
[ 4467.299074][T20831] vfs_write+0xa87/0x11e0
[ 4467.299276][T20831] ? __pfx_vfs_write+0x10/0x10
[ 4467.299518][T20831] ? find_held_lock+0x2c/0x110
[ 4467.299763][T20831] ? __pfx___lock_release+0x10/0x10
[ 4467.300018][T20831] ksys_write+0xf8/0x1d0
[ 4467.300206][T20831] ? __pfx_ksys_write+0x10/0x10
[ 4467.300455][T20831] do_syscall_64+0xc1/0x1d0
[ 4467.300998][T20831] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 4467.301434][T20831] RIP: 0033:0x7fdbc1b3fb77
[ 4467.301667][T20831] 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
[ 4467.302435][T20831] RSP: 002b:00007ffc398cc408 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4467.302776][T20831] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdbc1b3fb77
[ 4467.303129][T20831] RDX: 0000000000000004 RSI: 000055b5d2c5ef80 RDI: 0000000000000001
[ 4467.303473][T20831] RBP: 000055b5d2c5ef80 R08: 0000000000000000 R09: 00007fdbc1bb24e0
[ 4467.303967][T20831] R10: 00007fdbc1bb23e0 R11: 0000000000000246 R12: 0000000000000004
[ 4467.304327][T20831] R13: 00007fdbc1bfb760 R14: 0000000000000004 R15: 00007fdbc1bf69c0
[ 4467.304703][T20831]
[ 4467.304891][T20831] irq event stamp: 70893
[ 4467.305085][T20831] hardirqs last enabled at (70907): [] __up_console_sem+0x6b/0x80
[ 4467.305488][T20831] hardirqs last disabled at (70918): [] __up_console_sem+0x50/0x80
[ 4467.306030][T20831] softirqs last enabled at (69928): [] handle_softirqs+0x32e/0x5c0
[ 4467.306427][T20831] softirqs last disabled at (69903): [] __irq_exit_rcu+0xc4/0x100
[ 4467.306824][T20831] ---[ end trace 0000000000000000 ]---
[ 4467.382999][T20835] netdevsim netdevsim407 eni407np1: renamed from eth0
[ 4467.426997][T20834] netdevsim netdevsim579 eni579np1: renamed from eth1