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[Radha Mohan Chintakuntla <rchintakuntla@xxxxxxxxxx>]

I think AMI UEFI has the aspeed vga driver but Cavium UEFI doesn't. so
this might be causing issues ?

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https://bugs.launchpad.net/bugs/1574814

Title:
  ThunderX: soft lockup in cursor_timer_handler() Edit

Status in linux package in Ubuntu:
  Confirmed

Bug description:
  I booted a Cavium ThunderX crb1s 2.0 system using the netboot mini iso via virtual media:
    http://ports.ubuntu.com/ubuntu-ports/dists/xenial/main/installer-arm64/20101020ubuntu451/images/netboot/mini.iso

  During boot I observed the following lockup on the serial console:

  [ 28.128327] usb 1-1.1: reset high-speed USB device number 3 using xhci_hcd
  [ 84.912299] NMI watchdog: BUG: soft lockup - CPU#14 stuck for 23s! [swapper/14:0]
  [ 84.922718] Modules linked in: hid_generic(E) usbhid(E) hid(E) usb_storage(E) mdio_thunder(E) nicvf(E) ast(E) i2c_algo_bit(E) drm_kms_helper(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) ttm(E) drm(E) nicpf(E) thunder_bgx(E) mdio_cavium(E)
  [ 84.922749]
  [ 84.922754] CPU: 14 PID: 0 Comm: swapper/14 Tainted: G E 4.4.0-21-generic #37-Ubuntu
  [ 84.922757] Hardware name: Cavium ThunderX CN88XX board (DT)
  [ 84.922761] task: ffff801f6c9d4100 ti: ffff801f6c9e8000 task.ti: ffff801f6c9e8000
  [ 84.922771] PC is at cursor_timer_handler+0x30/0x58
  [ 84.922775] LR is at cursor_timer_handler+0x30/0x58
  [ 84.922778] pc : [<ffff8000004ec4f0>] lr : [<ffff8000004ec4f0>] pstate: 00400145
  [ 84.922781] sp : ffff801f6c9ebc20
  [ 84.922784] x29: ffff801f6c9ebc20 x28: ffff8000f94398d8
  [ 84.922789] x27: ffff801f6c9ebd00 x26: ffff801f7b3bebb8
  [ 84.922793] x25: ffff801f6c9e8000 x24: ffff800000e5ec00
  [ 84.922798] x23: ffff801f667d9800 x22: ffff8000004ec4c0
  [ 84.922802] x21: 0000000000000100 x20: ffff8000f94398d8
  [ 84.922807] x19: ffff8000f9439800 x18: 0000ffffc76a5358
  [ 84.922811] x17: 0000ffff97bbd2a8 x16: ffff8000002a5040
  [ 84.922816] x15: 000000003e4cf1e0 x14: 0000000000000008
  [ 84.922820] x13: 0000000000000000 x12: 003d090000000000
  [ 84.922824] x11: 00000000003d0900 x10: ffff80000090f200
  [ 84.922829] x9 : 00003d0900000000 x8 : 000000000000000e
  [ 84.922833] x7 : ffff801f7b3c5008 x6 : 00000000ffffffff
  [ 84.922837] x5 : 0000000000000000 x4 : 0000000000000001
  [ 84.922842] x3 : 0000000000000000 x2 : ffff801f6c899e05
  [ 84.922846] x1 : ffff801f667d99e0 x0 : 0000000000000000
  [ 84.922850]
  [ 101.008387] usb 1-1.1: reset high-speed USB device number 3 using xhci_hcd
  [ 101.180375] usb 1-1.1: reset high-speed USB device number 3 using xhci_hcd
  [ 101.342677] random: nonblocking pool is initialized

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