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[Jürg Häfliger <1958952@xxxxxxxxxxxxxxxxxx>]

*** This bug is a duplicate of bug 1953058 ***
    https://bugs.launchpad.net/bugs/1953058

** Tags added: kernel-daily-bug

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https://bugs.launchpad.net/bugs/1958952

Title:
  ARM64 node appleton-kernel dmesg spammed with "mlx5_core 0005:01:00.0:
  mlx5_eq_comp_int:159:(pid 1180): Completion event for bogus CQ
  0x5a5aa9"

Status in ubuntu-kernel-tests:
  New
Status in linux package in Ubuntu:
  Confirmed

Bug description:
  While investigating the SRU deployment failure, I noticed the dmesg
  will be spammed with:

  Jan 25 07:48:36 appleton-kernel kernel: [   22.885627] mlx5_core 0005:01:00.0: mlx5_eq_comp_int:159:(pid 1180): Completion event for bogus CQ 0x5a5aa9
  Jan 25 07:48:36 appleton-kernel kernel: [   22.885628] mlx5_core 0005:01:00.0: mlx5_eq_comp_int:159:(pid 1218): Completion event for bogus CQ 0x5a5aa9
  Jan 25 07:48:36 appleton-kernel kernel: [   22.885629] mlx5_core 0005:01:00.0: mlx5_eq_comp_int:159:(pid 1180): Completion event for bogus CQ 0x5a5aa9
  Jan 25 07:48:36 appleton-kernel kernel: [   22.885631] mlx5_core 0005:01:00.0: mlx5_eq_comp_int:159:(pid 1180): Completion event for bogus CQ 0x5a5aa9

  Issue found with Focal 5.4.0-96-generic

  Please find attachment for the syslog.

  Not sure if this is cause of our deployment issue, but it seems odd to me.
  And here is our deployment issue:
    1. System successfully deployed with Focal
    2. Deployment process hangs with "Enabling PPA" stage
    3. I cannot connect to this system manually, ssh hangs (soft lockup maybe?) after:
          Warning: Permanently added '10.229.50.13' (ECDSA) to the list of known hosts.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: linux-image-5.4.0-96-generic 5.4.0-96.109
  ProcVersionSignature: Ubuntu 5.4.0-96.109-generic 5.4.157
  Uname: Linux 5.4.0-96-generic aarch64
  AlsaDevices:
   total 0
   crw-rw---- 1 root audio 116,  1 Jan 25 07:48 seq
   crw-rw---- 1 root audio 116, 33 Jan 25 07:48 timer
  AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
  ApportVersion: 2.20.11-0ubuntu27.21
  Architecture: arm64
  ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1:
  CasperMD5CheckResult: skip
  Date: Tue Jan 25 07:53:33 2022
  IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
  Lsusb:
   Bus 001 Device 004: ID 12d1:0003 Huawei Technologies Co., Ltd.
   Bus 001 Device 003: ID 0424:2514 Microchip Technology, Inc. (formerly SMSC) USB 2.0 Hub
   Bus 001 Device 002: ID 0424:2514 Microchip Technology, Inc. (formerly SMSC) USB 2.0 Hub
   Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  Lsusb-t:
   /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-platform/2p, 480M
       |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
       |__ Port 2: Dev 3, If 0, Class=Hub, Driver=hub/4p, 480M
           |__ Port 1: Dev 4, If 1, Class=Human Interface Device, Driver=usbhid, 12M
           |__ Port 1: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 12M
  MachineType: Hisilicon D05
  PciMultimedia:

  ProcFB: 0 hibmcdrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-96-generic root=UUID=3abb8e5a-2f46-4221-b664-cb02a273a249 ro sysrq_always_enabled
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-96-generic N/A
   linux-backports-modules-5.4.0-96-generic  N/A
   linux-firmware                            1.187.25
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 06/01/2018
  dmi.bios.vendor: Huawei
  dmi.bios.version: 1.50
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: BC11SPCD
  dmi.board.vendor: Huawei
  dmi.board.version: VER.A
  dmi.chassis.asset.tag: To be filled by O.E.M.
  dmi.chassis.type: 17
  dmi.chassis.vendor: Hisilicon
  dmi.chassis.version: To be filled by O.E.M.
  dmi.modalias: dmi:bvnHuawei:bvr1.50:bd06/01/2018:svnHisilicon:pnD05:pvrV100R001C00:rvnHuawei:rnBC11SPCD:rvrVER.A:cvnHisilicon:ct17:cvrTobefilledbyO.E.M.:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: D05
  dmi.product.sku: To be filled by O.E.M.
  dmi.product.version: V100R001C00
  dmi.sys.vendor: Hisilicon

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