[ 15.527561][ T264] netdevsim netdevsim335 eni335np1: renamed from eth0
[ 15.591276][ T262] netdevsim netdevsim701 eni701np1: renamed from eth1
[ 21.488508][ T255] ==================================================================
[ 21.488875][ T255] BUG: KASAN: null-ptr-deref in try_to_grab_pending+0x81/0x6c0
[ 21.489194][ T255] Write of size 8 at addr 0000000000000000 by task busy_poll_test./255
[ 21.489502][ T255]
[ 21.489608][ T255] CPU: 1 UID: 0 PID: 255 Comm: busy_poll_test. Not tainted 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 21.489613][ T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.489615][ T255] Call Trace:
[ 21.489617][ T255]
[ 21.489619][ T255] dump_stack_lvl+0x82/0xc0
[ 21.489629][ T255] ? try_to_grab_pending+0x81/0x6c0
[ 21.489632][ T255] kasan_report+0xca/0x100
[ 21.489641][ T255] ? try_to_grab_pending+0x81/0x6c0
[ 21.489647][ T255] kasan_check_range+0x39/0x1b0
[ 21.489651][ T255] try_to_grab_pending+0x81/0x6c0
[ 21.489654][ T255] ? page_pool_release+0x13c/0x170
[ 21.489662][ T255] __cancel_work+0x7c/0x260
[ 21.489665][ T255] ? enable_delayed_work+0x10/0x10
[ 21.489669][ T255] ? page_pool_release+0x13c/0x170
[ 21.489672][ T255] ? page_pool_destroy+0xbf/0x420
[ 21.489678][ T255] __cancel_work_sync+0x18/0xc0
[ 21.489682][ T255] __dev_close_many+0x1cf/0x980
[ 21.489689][ T255] ? netdev_notify_peers+0x20/0x20
[ 21.489692][ T255] ? __mutex_lock+0x19f/0x1190
[ 21.489702][ T255] netif_close_many+0x201/0x650
[ 21.489705][ T255] ? ww_mutex_lock+0x160/0x160
[ 21.489709][ T255] ? __dev_close_many+0x980/0x980
[ 21.489712][ T255] ? validate_chain+0x15e/0x4d0
[ 21.489719][ T255] ? find_held_lock+0x2b/0x80
[ 21.489731][ T255] netif_close_many_and_unlock+0x21/0x2a0
[ 21.489736][ T255] unregister_netdevice_many_notify+0xeed/0x1c90
[ 21.489741][ T255] ? __mutex_handoff+0x2b0/0x2b0
[ 21.489745][ T255] ? rcu_is_watching+0x12/0xb0
[ 21.489753][ T255] ? dev_ingress_queue_create+0x190/0x190
[ 21.489757][ T255] ? __mutex_lock+0x19f/0x1190
[ 21.489760][ T255] ? __rtnl_unlock+0x69/0xf0
[ 21.489766][ T255] ? nsim_destroy+0xf1/0x700 [netdevsim]
[ 21.489781][ T255] ? ww_mutex_lock+0x160/0x160
[ 21.489786][ T255] unregister_netdevice_queue+0x29e/0x410
[ 21.489790][ T255] ? unregister_netdevice_many+0x20/0x20
[ 21.489797][ T255] nsim_destroy+0x16e/0x700 [netdevsim]
[ 21.489815][ T255] __nsim_dev_port_del+0x17e/0x250 [netdevsim]
[ 21.489831][ T255] nsim_dev_reload_destroy+0xdc/0x470 [netdevsim]
[ 21.489843][ T255] nsim_drv_remove+0x51/0x1d0 [netdevsim]
[ 21.489855][ T255] device_release_driver_internal+0x3bb/0x580
[ 21.489862][ T255] ? klist_put+0xb1/0x170
[ 21.489867][ T255] bus_remove_device+0x1ee/0x3f0
[ 21.489872][ T255] device_del+0x33b/0x8c0
[ 21.489876][ T255] ? __device_link_del+0x3c0/0x3c0
[ 21.489881][ T255] device_unregister+0x17/0xa0
[ 21.489884][ T255] del_device_store+0x2f2/0x4f0 [netdevsim]
[ 21.489897][ T255] ? nsim_bus_dev_numvfs_show+0x60/0x60 [netdevsim]
[ 21.489906][ T255] ? sysfs_file_kobj+0xb5/0x1f0
[ 21.489912][ T255] ? sysfs_file_kobj+0xbf/0x1f0
[ 21.489916][ T255] ? sysfs_file_ops+0x120/0x120
[ 21.489918][ T255] kernfs_fop_write_iter+0x2f2/0x490
[ 21.489922][ T255] vfs_write+0xaae/0x12c0
[ 21.489928][ T255] ? kernel_write+0x6b0/0x6b0
[ 21.489933][ T255] ? __lock_acquire+0x449/0x7e0
[ 21.489940][ T255] ksys_write+0xf7/0x1d0
[ 21.489943][ T255] ? __ia32_sys_read+0xb0/0xb0
[ 21.489949][ T255] do_syscall_64+0xc1/0xfd0
[ 21.489955][ T255] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 21.489959][ T255] RIP: 0033:0x7f7aa2322257
[ 21.489963][ T255] Code: 0f 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
[ 21.489965][ T255] RSP: 002b:00007ffcf9003138 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 21.489969][ T255] RAX: ffffffffffffffda RBX: 00007f7aa241e780 RCX: 00007f7aa2322257
[ 21.489971][ T255] RDX: 0000000000000004 RSI: 000055e1c8982bf0 RDI: 0000000000000001
[ 21.489973][ T255] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f7aa23d4d20
[ 21.489974][ T255] R10: 00007f7aa23d4c20 R11: 0000000000000246 R12: 0000000000000004
[ 21.489976][ T255] R13: 000055e1c8982bf0 R14: 0000000000000004 R15: 00007f7aa24199c0
[ 21.489982][ T255]
[ 21.489984][ T255] ==================================================================
[ 21.505108][ T255] Disabling lock debugging due to kernel taint
[ 21.505360][ T255] BUG: kernel NULL pointer dereference, address: 0000000000000000
[ 21.505649][ T255] #PF: supervisor write access in kernel mode
[ 21.505906][ T255] #PF: error_code(0x0002) - not-present page
[ 21.506144][ T255] PGD 0 P4D 0
[ 21.506297][ T255] Oops: Oops: 0002 [#1] SMP KASAN
[ 21.506499][ T255] CPU: 1 UID: 0 PID: 255 Comm: busy_poll_test. Tainted: G B 6.18.0-rc5-virtme #1 PREEMPT(full)
[ 21.506959][ T255] Tainted: [B]=BAD_PAGE
[ 21.507108][ T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.507351][ T255] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 21.507609][ T255] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 1f 93 82 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 21.508325][ T255] RSP: 0018:ffffc90000c17510 EFLAGS: 00010046
[ 21.508572][ T255] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84649b8a
[ 21.508884][ T255] RDX: fffffbfff126cacd RSI: 0000000000000008 RDI: ffffffff89365660
[ 21.509199][ T255] RBP: ffffc90000c17578 R08: 0000000000000001 R09: fffffbfff126cacc
[ 21.509494][ T255] R10: ffffffff89365667 R11: ffffc90000c17000 R12: 0000000000000000
[ 21.509787][ T255] R13: 0000000000000282 R14: ffff888005a82000 R15: dffffc0000000000
[ 21.510101][ T255] FS: 00007f7aa2222000(0000) GS:ffff8880e3d87000(0000) knlGS:0000000000000000
[ 21.510465][ T255] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.510708][ T255] CR2: 0000000000000000 CR3: 000000000a95b005 CR4: 0000000000772ef0
[ 21.511018][ T255] PKRU: 55555554
[ 21.511165][ T255] Call Trace:
[ 21.511311][ T255]
[ 21.511409][ T255] ? page_pool_release+0x13c/0x170
[ 21.511613][ T255] __cancel_work+0x7c/0x260
[ 21.511827][ T255] ? enable_delayed_work+0x10/0x10
[ 21.512023][ T255] ? page_pool_release+0x13c/0x170
[ 21.512216][ T255] ? page_pool_destroy+0xbf/0x420
[ 21.512412][ T255] __cancel_work_sync+0x18/0xc0
[ 21.512607][ T255] __dev_close_many+0x1cf/0x980
[ 21.512820][ T255] ? netdev_notify_peers+0x20/0x20
[ 21.513021][ T255] ? __mutex_lock+0x19f/0x1190
[ 21.513219][ T255] netif_close_many+0x201/0x650
[ 21.513411][ T255] ? ww_mutex_lock+0x160/0x160
[ 21.513604][ T255] ? __dev_close_many+0x980/0x980
[ 21.513806][ T255] ? validate_chain+0x15e/0x4d0
[ 21.514008][ T255] ? find_held_lock+0x2b/0x80
[ 21.514203][ T255] netif_close_many_and_unlock+0x21/0x2a0
[ 21.514397][ T255] unregister_netdevice_many_notify+0xeed/0x1c90
[ 21.514644][ T255] ? __mutex_handoff+0x2b0/0x2b0
[ 21.514860][ T255] ? rcu_is_watching+0x12/0xb0
[ 21.515056][ T255] ? dev_ingress_queue_create+0x190/0x190
[ 21.515251][ T255] ? __mutex_lock+0x19f/0x1190
[ 21.515443][ T255] ? __rtnl_unlock+0x69/0xf0
[ 21.515641][ T255] ? nsim_destroy+0xf1/0x700 [netdevsim]
[ 21.515867][ T255] ? ww_mutex_lock+0x160/0x160
[ 21.516069][ T255] unregister_netdevice_queue+0x29e/0x410
[ 21.516263][ T255] ? unregister_netdevice_many+0x20/0x20
[ 21.516467][ T255] nsim_destroy+0x16e/0x700 [netdevsim]
[ 21.516671][ T255] __nsim_dev_port_del+0x17e/0x250 [netdevsim]
[ 21.516933][ T255] nsim_dev_reload_destroy+0xdc/0x470 [netdevsim]
[ 21.517183][ T255] nsim_drv_remove+0x51/0x1d0 [netdevsim]
[ 21.517409][ T255] device_release_driver_internal+0x3bb/0x580
[ 21.517657][ T255] ? klist_put+0xb1/0x170
[ 21.517822][ T255] bus_remove_device+0x1ee/0x3f0
[ 21.518050][ T255] device_del+0x33b/0x8c0
[ 21.518198][ T255] ? __device_link_del+0x3c0/0x3c0
[ 21.518411][ T255] device_unregister+0x17/0xa0
[ 21.518605][ T255] del_device_store+0x2f2/0x4f0 [netdevsim]
[ 21.518907][ T255] ? nsim_bus_dev_numvfs_show+0x60/0x60 [netdevsim]
[ 21.519161][ T255] ? sysfs_file_kobj+0xb5/0x1f0
[ 21.519362][ T255] ? sysfs_file_kobj+0xbf/0x1f0
[ 21.519573][ T255] ? sysfs_file_ops+0x120/0x120
[ 21.519773][ T255] kernfs_fop_write_iter+0x2f2/0x490
[ 21.519967][ T255] vfs_write+0xaae/0x12c0
[ 21.520119][ T255] ? kernel_write+0x6b0/0x6b0
[ 21.520314][ T255] ? __lock_acquire+0x449/0x7e0
[ 21.520516][ T255] ksys_write+0xf7/0x1d0
[ 21.520661][ T255] ? __ia32_sys_read+0xb0/0xb0
[ 21.520864][ T255] do_syscall_64+0xc1/0xfd0
[ 21.521059][ T255] entry_SYSCALL_64_after_hwframe+0x4b/0x53
[ 21.521298][ T255] RIP: 0033:0x7f7aa2322257
[ 21.521501][ T255] Code: 0f 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
[ 21.522195][ T255] RSP: 002b:00007ffcf9003138 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 21.522488][ T255] RAX: ffffffffffffffda RBX: 00007f7aa241e780 RCX: 00007f7aa2322257
[ 21.522784][ T255] RDX: 0000000000000004 RSI: 000055e1c8982bf0 RDI: 0000000000000001
[ 21.523074][ T255] RBP: 0000000000000004 R08: 0000000000000000 R09: 00007f7aa23d4d20
[ 21.523370][ T255] R10: 00007f7aa23d4c20 R11: 0000000000000246 R12: 0000000000000004
[ 21.523661][ T255] R13: 000055e1c8982bf0 R14: 0000000000000004 R15: 00007f7aa24199c0
[ 21.523989][ T255]
[ 21.524135][ T255] Modules linked in: netdevsim psample
[ 21.524334][ T255] CR2: 0000000000000000
[ 21.524486][ T255] ---[ end trace 0000000000000000 ]---
[ 21.524682][ T255] RIP: 0010:try_to_grab_pending+0x81/0x6c0
[ 21.524933][ T255] Code: 00 41 89 c0 b8 01 00 00 00 45 85 c0 74 0f 48 83 c4 10 5b 5d 41 5c 41 5d 41 5e 41 5f c3 be 08 00 00 00 48 89 df e8 1f 93 82 00 48 0f ba 2b 00 72 11 48 83 c4 10 31 c0 5b 5d 41 5c 41 5d 41 5e
[ 21.525614][ T255] RSP: 0018:ffffc90000c17510 EFLAGS: 00010046
[ 21.525868][ T255] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff84649b8a
[ 21.526158][ T255] RDX: fffffbfff126cacd RSI: 0000000000000008 RDI: ffffffff89365660
[ 21.526450][ T255] RBP: ffffc90000c17578 R08: 0000000000000001 R09: fffffbfff126cacc
[ 21.526739][ T255] R10: ffffffff89365667 R11: ffffc90000c17000 R12: 0000000000000000
[ 21.527030][ T255] R13: 0000000000000282 R14: ffff888005a82000 R15: dffffc0000000000
[ 21.527318][ T255] FS: 00007f7aa2222000(0000) GS:ffff8880e3d87000(0000) knlGS:0000000000000000
[ 21.527654][ T255] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 21.527908][ T255] CR2: 0000000000000000 CR3: 000000000a95b005 CR4: 0000000000772ef0
[ 21.528224][ T255] PKRU: 55555554
[ 21.528375][ T255] Kernel panic - not syncing: Fatal exception
[ 21.528707][ T255] Kernel Offset: 0x3000000 from 0xffffffff81000000 (relocation range: 0xffffffff80000000-0xffffffffbfffffff)
[ 21.529156][ T255] ---[ end Kernel panic - not syncing: Fatal exception ]---
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