Still seeing guestOS panics during detach below:

https://53a68ba6d05d22d0f44d-c5982ef1d1780edfccf5471d12724c1b.ssl.cf5.rackcdn.com/812473/2/check/nova-grenade-multinode/31101fd/testr_results.html

2021-10-07 12:36:45,955 223284 INFO     [tempest.lib.common.rest_client] Request (LiveMigrationTest:_run_cleanups): 200 POST http://10.210.192.135/compute/v2.1/servers/503a61f0-8900-4f2b-b7c4-5bd6402f575b/action 0.051s
2021-10-07 12:36:45,956 223284 DEBUG    [tempest.lib.common.rest_client] Request - Headers: {'Content-Type': 'application/json', 'Accept': 'application/json', 'X-Auth-Token': '<omitted>'}
        Body: {"os-getConsoleOutput": {}}
   Response - Headers: {'date': 'Thu, 07 Oct 2021 12:36:45 GMT', 'server': 'Apache/2.4.41 (Ubuntu)', 'content-length': '9549', 'content-type': 'application/json', 'openstack-api-version': 'compute 2.1', 'x-openstack-nova-api-version': '2.1', 'vary': 'OpenStack-API-Version,X-OpenStack-Nova-API-Version', 'x-openstack-request-id': 'req-818114fc-1e1e-4e46-9748-de28184d4780', 'x-compute-request-id': 'req-818114fc-1e1e-4e46-9748-de28184d4780', 'connection': 'close', 'status': '200', 'content-location': 'http://10.210.192.135/compute/v2.1/servers/503a61f0-8900-4f2b-b7c4-5bd6402f575b/action'}
        Body: b'{"output": "[   16.588694] BUG: unable to handle page fault for address: 0000000000461c36\\n[   16.593560] #PF: supervisor read access in user mode\\n[   16.593868] #PF: error_code(0x6e7860) - not-present page\\n[   16.594289] IDT: 0xfffffe0000000000 (limit=0xfff) GDT: 0xfffffe0000001000 (limit=0x7f)\\n[   16.594773] LDTR: NULL\\n[   16.595779] TR: 0x40 -- base=0xfffffe0000003000 limit=0x206f\\n[   16.596191] PGD 2da7067 P4D 2da7067 PUD 2da6067 PMD 3ce6067 PTE 0\\n[   16.597308] Oops: 7860 [#1] SMP NOPTI\\n[   16.597949] CPU: 0 PID: 289 Comm: wait_iface Not tainted 5.3.0-26-generic #28~18.04.1-Ubuntu\\n[   16.598345] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.13.0-1ubuntu1.1 04/01/2014\\n[   16.599745] RIP: 0033:0x435117\\n[   16.600260] Code: ff ff 48 89 df e8 c9 23 fd ff 5b e9 da fb ff ff 48 8b 15 0c 7e 27 00 53 8b 42 38 ff c0 89 42 38 bf 10 00 00 00 e8 b0 3a fd ff <48> 89 c3 48 8b 05 bf 7c 27 00 48 89 1d b8 7c 27 00 48 89 03 e8 a7\\n[   16.601054] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246\\n[   16.601368] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010\\n[   16.601710] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007\\n[   16.602049] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a\\n[   16.602380] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0\\n[   16.602717] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000\\n[   16.603127] FS:  00007fce1b5506a0 GS:  0000000000000000\\n[   16.603445] Modules linked in: ahci libahci ip_tables x_tables nls_utf8 nls_iso8859_1 nls_ascii isofs hid_generic usbhid hid virtio_rng virtio_gpu drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm virtio_scsi virtio_net net_failover failover virtio_input virtio_blk qemu_fw_cfg 9pnet_virtio 9pnet pcnet32 8139cp mii ne2k_pci 8390 e1000\\n[   16.605249] CR2: 0000000000461c36\\n[   16.606644] ---[ end trace fafa623ec1329fa4 ]---\\n[   16.607001] RIP: 0033:0x435117\\n[   16.607209] Code: ff ff 48 89 df e8 c9 23 fd ff 5b e9 da fb ff ff 48 8b 15 0c 7e 27 00 53 8b 42 38 ff c0 89 42 38 bf 10 00 00 00 e8 b0 3a fd ff <48> 89 c3 48 8b 05 bf 7c 27 00 48 89 1d b8 7c 27 00 48 89 03 e8 a7\\n[   16.607943] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246\\n[   16.608192] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010\\n[   16.608503] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007\\n[   16.608811] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a\\n[   16.609118] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0\\n[   16.609428] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000\\n[   16.609828] FS:  00007fce1b5506a0(0000) GS:ffff8e5087600000(0000) knlGS:0000000000000000\\n[   16.610200] CS:  0033 DS: 0000 ES: 0000 CR0: 0000000080050033\\n[   16.610921] CR2: 0000000000461c36 CR3: 0000000003d26000 CR4: 00000000000006f0\\n[   16.639815] ------------[ cut here ]------------\\n[   16.640449] kernel BUG at /build/linux-hwe-3HpQOB/linux-hwe-5.3.0/include/linux/fs.h:2902!\\n[   16.641191] invalid opcode: 0000 [#2] SMP NOPTI\\n[   16.641525] CPU: 0 PID: 289 Comm: wait_iface Tainted: G      D           5.3.0-26-generic #28~18.04.1-Ubuntu\\n[   16.642179] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.13.0-1ubuntu1.1 04/01/2014\\n[   16.643303] RIP: 0010:__fput+0x252/0x260\\n[   16.643613] Code: 0f 84 ab fe ff ff 41 f7 c4 00 40 00 00 0f 85 9e fe ff ff e8 60 38 00 00 e9 94 fe ff ff 4c 89 f7 e8 83 5a 02 00 e9 d2 fe ff ff <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 31 ff\\n[   16.644827] RSP: 0018:ffffb1b5c0273e40 EFLAGS: 00000246\\n[   16.645112] RAX: 0000000000000000 RBX: ffff8e5083d46200 RCX: 0000000000000001\\n[   16.645431] RDX: ffff8e5083d462d0 RSI: ffff8e5083d46200 RDI: 0000000000000000\\n[   16.645747] RBP: ffffb1b5c0273e80 R08: 0000000000000000 R09: 0000000000000000\\n[   16.646069] R10: 0000000000000010 R11: ffff8e508418f7c0 R12: 00000000080a801d\\n[   16.646385] R13: ffff8e508418f7c0 R14: ffff8e5082d813e0 R15: ffff8e5084056240\\n[   16
2021-10-07 12:36:45,957 223284 DEBUG    [tempest.common.waiters] Console output for 503a61f0-8900-4f2b-b7c4-5bd6402f575b
body=
[   16.588694] BUG: unable to handle page fault for address: 0000000000461c36
[   16.593560] #PF: supervisor read access in user mode
[   16.593868] #PF: error_code(0x6e7860) - not-present page
[   16.594289] IDT: 0xfffffe0000000000 (limit=0xfff) GDT: 0xfffffe0000001000 (limit=0x7f)
[   16.594773] LDTR: NULL
[   16.595779] TR: 0x40 -- base=0xfffffe0000003000 limit=0x206f
[   16.596191] PGD 2da7067 P4D 2da7067 PUD 2da6067 PMD 3ce6067 PTE 0
[   16.597308] Oops: 7860 [#1] SMP NOPTI
[   16.597949] CPU: 0 PID: 289 Comm: wait_iface Not tainted 5.3.0-26-generic #28~18.04.1-Ubuntu
[   16.598345] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.13.0-1ubuntu1.1 04/01/2014
[   16.599745] RIP: 0033:0x435117
[   16.600260] Code: ff ff 48 89 df e8 c9 23 fd ff 5b e9 da fb ff ff 48 8b 15 0c 7e 27 00 53 8b 42 38 ff c0 89 42 38 bf 10 00 00 00 e8 b0 3a fd ff <48> 89 c3 48 8b 05 bf 7c 27 00 48 89 1d b8 7c 27 00 48 89 03 e8 a7
[   16.601054] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246
[   16.601368] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010
[   16.601710] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007
[   16.602049] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a
[   16.602380] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0
[   16.602717] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000
[   16.603127] FS:  00007fce1b5506a0 GS:  0000000000000000
[   16.603445] Modules linked in: ahci libahci ip_tables x_tables nls_utf8 nls_iso8859_1 nls_ascii isofs hid_generic usbhid hid virtio_rng virtio_gpu drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm virtio_scsi virtio_net net_failover failover virtio_input virtio_blk qemu_fw_cfg 9pnet_virtio 9pnet pcnet32 8139cp mii ne2k_pci 8390 e1000
[   16.605249] CR2: 0000000000461c36
[   16.606644] ---[ end trace fafa623ec1329fa4 ]---
[   16.607001] RIP: 0033:0x435117
[   16.607209] Code: ff ff 48 89 df e8 c9 23 fd ff 5b e9 da fb ff ff 48 8b 15 0c 7e 27 00 53 8b 42 38 ff c0 89 42 38 bf 10 00 00 00 e8 b0 3a fd ff <48> 89 c3 48 8b 05 bf 7c 27 00 48 89 1d b8 7c 27 00 48 89 03 e8 a7
[   16.607943] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246
[   16.608192] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010
[   16.608503] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007
[   16.608811] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a
[   16.609118] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0
[   16.609428] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000
[   16.609828] FS:  00007fce1b5506a0(0000) GS:ffff8e5087600000(0000) knlGS:0000000000000000
[   16.610200] CS:  0033 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.610921] CR2: 0000000000461c36 CR3: 0000000003d26000 CR4: 00000000000006f0
[   16.639815] ------------[ cut here ]------------
[   16.640449] kernel BUG at /build/linux-hwe-3HpQOB/linux-hwe-5.3.0/include/linux/fs.h:2902!
[   16.641191] invalid opcode: 0000 [#2] SMP NOPTI
[   16.641525] CPU: 0 PID: 289 Comm: wait_iface Tainted: G      D           5.3.0-26-generic #28~18.04.1-Ubuntu
[   16.642179] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.13.0-1ubuntu1.1 04/01/2014
[   16.643303] RIP: 0010:__fput+0x252/0x260
[   16.643613] Code: 0f 84 ab fe ff ff 41 f7 c4 00 40 00 00 0f 85 9e fe ff ff e8 60 38 00 00 e9 94 fe ff ff 4c 89 f7 e8 83 5a 02 00 e9 d2 fe ff ff <0f> 0b 66 90 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 31 ff
[   16.644827] RSP: 0018:ffffb1b5c0273e40 EFLAGS: 00000246
[   16.645112] RAX: 0000000000000000 RBX: ffff8e5083d46200 RCX: 0000000000000001
[   16.645431] RDX: ffff8e5083d462d0 RSI: ffff8e5083d46200 RDI: 0000000000000000
[   16.645747] RBP: ffffb1b5c0273e80 R08: 0000000000000000 R09: 0000000000000000
[   16.646069] R10: 0000000000000010 R11: ffff8e508418f7c0 R12: 00000000080a801d
[   16.646385] R13: ffff8e508418f7c0 R14: ffff8e5082d813e0 R15: ffff8e5084056240
[   16.646710] FS:  0000000000000000(0000) GS:ffff8e5087600000(0000) knlGS:0000000000000000
[   16.647126] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.647542] CR2: 00007fce1b550980 CR3: 0000000005a0a000 CR4: 00000000000006f0
[   16.648126] Call Trace:
[   16.649690]  ____fput+0xe/0x10
[   16.650219]  task_work_run+0x9d/0xc0
[   16.650439]  do_exit+0x2f4/0xba0
[   16.650648]  rewind_stack_do_exit+0x17/0x20
[   16.650994] RIP: 0033:0x435117
[   16.651604] Code: Bad RIP value.
[   16.651838] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246
[   16.652358] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010
[   16.652881] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007
[   16.653281] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a
[   16.653608] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0
[   16.653930] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000
[   16.654458] Modules linked in: ahci libahci ip_tables x_tables nls_utf8 nls_iso8859_1 nls_ascii isofs hid_generic usbhid hid virtio_rng virtio_gpu drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm virtio_scsi virtio_net net_failover failover virtio_input virtio_blk qemu_fw_cfg 9pnet_virtio 9pnet pcnet32 8139cp mii ne2k_pci 8390 e1000
[   16.656856] ---[ end trace fafa623ec1329fa5 ]---
[   16.657202] RIP: 0033:0x435117
[   16.657557] Code: Bad RIP value.
[   16.657980] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246
[   16.658321] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010
[   16.659023] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007
[   16.659439] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a
[   16.659801] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0
[   16.660299] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000
[   16.660828] FS:  0000000000000000(0000) GS:ffff8e5087600000(0000) knlGS:0000000000000000
[   16.661202] CS:  0033 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.661469] CR2: 00000000004350ed CR3: 0000000005a0a000 CR4: 00000000000006f0
[   16.661945] Fixing recursive fault but reboot is needed!
[   22.072466] general protection fault: 0000 [#3] SMP NOPTI
[   22.072841] CPU: 0 PID: 13 Comm: kworker/0:1 Tainted: G      D           5.3.0-26-generic #28~18.04.1-Ubuntu
[   22.073289] Hardware name: OpenStack Foundation OpenStack Nova, BIOS 1.13.0-1ubuntu1.1 04/01/2014
[   22.073895] Workqueue: kacpid acpi_os_execute_deferred
[   22.074250] RIP: 0010:__kmalloc+0xa5/0x260
[   22.074662] Code: 65 49 8b 50 08 65 4c 03 05 b0 7a 37 71 4d 8b 38 4d 85 ff 0f 84 82 01 00 00 41 8b 59 20 49 8b 39 48 8d 4a 01 4c 89 f8 4c 01 fb <48> 33 1b 49 33 99 70 01 00 00 65 48 0f c7 0f 0f 94 c0 84 c0 74 bd
[   22.075479] RSP: 0018:ffffb1b5c0073d28 EFLAGS: 00000206
[   22.075728] RAX: 6ced839a910c620c RBX: 6ced839a910c620c RCX: 000000000000106a
[   22.076041] RDX: 0000000000001069 RSI: 0000000000000dc0 RDI: 000000000002f060
[   22.076358] RBP: ffffb1b5c0073d58 R08: ffff8e508762f060 R09: ffff8e5087001a80
[   22.076668] R10: ffff8e5082aa3d60 R11: fefefefefefefeff R12: 0000000000000dc0
[   22.076979] R13: 000000000000000b R14: ffff8e5087001a80 R15: 6ced839a910c620c
[   22.077301] FS:  0000000000000000(0000) GS:ffff8e5087600000(0000) knlGS:0000000000000000
[   22.077650] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.077910] CR2: 00000000004350ed CR3: 0000000005a0a000 CR4: 00000000000006f0
[   22.078228] Call Trace:
[   22.078434]  ? acpi_os_allocate_zeroed+0x2d/0x2f
[   22.078703]  acpi_os_allocate_zeroed+0x2d/0x2f
[   22.078951]  acpi_ns_get_normalized_pathname+0x7f/0x140
[   22.079241]  acpi_ex_start_trace_method+0x20/0xb9
[   22.079484]  acpi_ds_begin_method_execution+0x7c/0x387
[   22.079764]  acpi_ps_execute_method+0x7c/0x2d1
[   22.079998]  acpi_ns_evaluate+0x34b/0x4ed
[   22.080213]  acpi_ev_asynch_execute_gpe_method+0xbd/0x159
[   22.080480]  acpi_os_execute_deferred+0x1a/0x30
[   22.080715]  process_one_work+0x1fd/0x3f0
[   22.080933]  worker_thread+0x34/0x410
[   22.081137]  kthread+0x121/0x140
[   22.081325]  ? process_one_work+0x3f0/0x3f0
[   22.081541]  ? kthread_park+0xb0/0xb0
[   22.081747]  ret_from_fork+0x35/0x40
[   22.081990] Modules linked in: ahci libahci ip_tables x_tables nls_utf8 nls_iso8859_1 nls_ascii isofs hid_generic usbhid hid virtio_rng virtio_gpu drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm virtio_scsi virtio_net net_failover failover virtio_input virtio_blk qemu_fw_cfg 9pnet_virtio 9pnet pcnet32 8139cp mii ne2k_pci 8390 e1000
[   22.083510] ---[ end trace fafa623ec1329fa6 ]---
[   22.083760] RIP: 0033:0x435117
[   22.083974] Code: Bad RIP value.
[   22.084147] RSP: 002b:00007ffce3276f50 EFLAGS: 00000246
[   22.084397] RAX: 00000000004822a0 RBX: 00000000006e4010 RCX: 00000000006e4010
[   22.084710] RDX: 00007ffce3276eb0 RSI: 00000000006e77d0 RDI: 0000000000000007
[   22.085022] RBP: 0000000000000000 R08: fefefefefefefeff R09: fefefefefefeff5a
[   22.085328] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e44b0
[   22.085636] R13: 0000000000000000 R14: 00007ffce3276fa8 R15: 0000000000000000
[   22.085948] FS:  0000000000000000(0000) GS:ffff8e5087600000(0000) knlGS:0000000000000000
[   22.086295] CS:  0033 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.086704] CR2: 00000000004350ed CR3: 0000000005a0a000 CR4: 00000000000006f0