System got rebooted while running Oracle dataguard process

Issue

• While transferring the asm dataguard from one server to other, the server got rebooted with following call traces:

  Request for unknown module key 'Oracle Linux RHCK Module Signing Key: dd995b155c19b3a7c3ef7707b969e25f9639666e' err -11
  ACFSK-0037: Module load succeeded. Build information:   (LOW DEBUG) USM_19.10.0.0.0ACFSRU_LINUX.X64_201219 2020/12/22 08:07:58
  Request for unknown module key 'Oracle Linux RHCK Module Signing Key: dd995b155c19b3a7c3ef7707b969e25f9639666e' err -11
  AFDK-00001: Module load succeeded. Build information:  (LOW DEBUG) - USM_19.10.0.0.0ACFSRU_LINUX.X64_201219 built on 2020/12/22 09:39:43.
  nr_pdflush_threads exported in /proc is scheduled for removal
  warning: `turbostat' uses 32-bit capabilities (legacy support in use)
  ------------[ cut here ]------------
  kernel BUG at drivers/scsi/virtio_scsi.c:521!
  invalid opcode: 0000 [#1] SMP 
  Modules linked in: oracleafd(POE) oracleacfs(POE) bmhook(OE) tmhook(OE) oracleadvm(POE) oracleoks(POE) dsa_filter(POE) dsa_filter_hook(OE) iosf_mbi crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd sg joydev pcspkr virtio_rng virtio_balloon i2c_piix4 cbsensor(OE) auth_rpcgss binfmt_misc sunrpc ip_tables xfs libcrc32c sr_mod cdrom sd_mod crc_t10dif crct10dif_generic ata_generic pata_acpi virtio_net net_failover virtio_console failover virtio_scsi qxl drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops ttm drm ata_piix libata crct10dif_pclmul crct10dif_common crc32c_intel virtio_pci virtio_ring serio_raw virtio drm_panel_orientation_quirks floppy dm_mirror dm_region_hash dm_log dm_mod
  CPU: 3 PID: 9817 Comm: oracle_9817_+as Kdump: loaded Tainted: P           OE  ------------   3.10.0-1160.36.2.el7.x86_64 #1
  Hardware name: Red Hat RHEL/RHEL-AV, BIOS 1.14.0-1.module+el8.4.0+8855+a9e237a9 04/01/2014
  task: ffff9e53f3c2d280 ti: ffff9e61a4a94000 task.ti: ffff9e61a4a94000
  RIP: 0010:[<ffffffffc02f6222>]  [<ffffffffc02f6222>] virtscsi_queuecommand+0x1f2/0x230 [virtio_scsi]
  RSP: 0018:ffff9e61a4a976f0  EFLAGS: 00010283
  RAX: 000000000000007e RBX: ffff9e61a494c540 RCX: ffff9e633bb8e760
  RDX: ffff9e61a494c540 RSI: ffff9e633b7da948 RDI: ffff9e633b7da740
  RBP: ffff9e61a4a97708 R08: 0000000000000020 R09: 0000000000000004
  R10: ffff9e5376599800 R11: ffff9e61a494c540 R12: ffff9e61a494c540
  R13: ffff9e633b7da000 R14: ffff9e63394e0848 R15: ffff9e61a494c540
  FS:  00007f9093bfd400(0000) GS:ffff9e633f2c0000(0000) knlGS:0000000000000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007f908cd5c000 CR3: 0000000e600fe000 CR4: 00000000001606e0
  Call Trace:
   [<ffffffffc02f6297>] virtscsi_queuecommand_single+0x37/0x40 [virtio_scsi]
   [<ffffffffb0ae4810>] scsi_dispatch_cmd+0xb0/0x240
   [<ffffffffb0aedf3c>] scsi_request_fn+0x4ac/0x680
   [<ffffffffb0978b9e>] ? deadline_add_request+0x6e/0x90
   [<ffffffffb0953ee9>] __blk_run_queue+0x39/0x50
   [<ffffffffb0957c93>] blk_queue_bio+0x3b3/0x400
   [<ffffffffc060efd1>] afd_mkrequest_fn+0x261/0x810 [oracleafd]
   [<ffffffffb0953d9f>] ? generic_make_request_checks+0x27f/0x390
   [<ffffffffb0955b77>] generic_make_request+0x147/0x380
   [<ffffffffb0955e20>] submit_bio+0x70/0x150
   [<ffffffffc0611ef9>] safd_bio_submit+0x109/0x190 [oracleafd]
   [<ffffffffc0607216>] afdq_batch_submit+0x1166/0x1450 [oracleafd]
   [<ffffffffb06d7402>] ? check_preempt_curr+0x92/0xa0
   [<ffffffffc05f40d4>] ? afduhLookup+0x84/0x120 [oracleafd]
   [<ffffffffc05f80f3>] afdc_io+0xb13/0xf70 [oracleafd]
   [<ffffffffb07e1038>] ? zone_statistics+0x88/0xa0
   [<ffffffffc05f86ab>] afdc_dispatch_ioctl+0x15b/0x18d0 [oracleafd]
   [<ffffffffc05fa18c>] afdc_execute_ioctl+0x36c/0x470 [oracleafd]
   [<ffffffffb07e9807>] ? anon_vma_interval_tree_insert+0x97/0xa0
   [<ffffffffb083ece2>] ? __mem_cgroup_commit_charge+0xe2/0x2f0
   [<ffffffffb07ce09e>] ? lru_cache_add+0xe/0x10
   [<ffffffffc060e9cc>] afd_ioctl+0x18c/0x350 [oracleafd]
   [<ffffffffb09685ea>] blkdev_ioctl+0x28a/0xa20
   [<ffffffffb088f131>] block_ioctl+0x41/0x50
   [<ffffffffb0863a80>] do_vfs_ioctl+0x3a0/0x5b0
   [<ffffffffb0863d31>] SyS_ioctl+0xa1/0xc0
   [<ffffffffb0d95f92>] system_call_fastpath+0x25/0x2a
  Code: 00 c6 00 00 48 8d 78 01 b2 bf e9 a3 fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 31 f6 48 83 c7 02 83 ea 02 66 89 77 fe e9 91 fe ff ff <0f> 0b 48 8b 82 d0 00 00 00 48 8b 0a 48 c7 c7 00 84 2f c0 44 0f 
   [ 1992.311757] RIP  [<ffffffffc02f6222>] virtscsi_queuecommand+0x1f2/0x230 [virtio_scsi]
   [ 1992.312912]  RSP <ffff9e61a4a976f0>