Comment 25 for bug 1528684

Hardware:
Lenovo L450 [Processor: Intel® Core™ i5-5200U CPU @ 2.20GHz × 4; Graphics: Intel® HD Graphics 5500 (Broadwell GT2)]

### Factory delivery (as was) with Microsoft Windows 8 pre-installed on HDD.

### HDD removed and replaced for new SDD: Samsung SSD 850 EVO 250GB.
### Additional RAM slot filled.
### SDD && RAM integrity tested with SMART diagnostics && memtest_86x, respectively. No errors found.

### Ubuntu 15.10 installed on on SDD (formatted and encrypted according to wizard on Ubuntu Live-USB). First occurrence of of 'Error parsing PCC subspaces from PCCT'. Distribution upgraded to Ubuntu 16.04 LTS (is now).

### Error persists:
~ $dmesg | grep -i error
[ 0.161660] Error parsing PCC subspaces from PCCT
[ 72.911804] EXT4-fs (dm-1): re-mounted. Opts: errors=remount-ro

###### System Information:
### Kernel:
~$ uname -a
Linux louis-l450 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

### fstab content:
~$ cat /etc/fstab
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point> <type> <options> <dump> <pass>
#
# LVM2 Physical Volume (249 GB):
# partition /dev/sda3 encrypted on /dev/mapper/sda3_crypt
/dev/mapper/ubuntu--gnome--vg-root / ext4 errors=remount-ro 0 1
#
# Boot partition (256 MB):
# /boot was on /dev/sda2 during installation
UUID=bc9d6ff1-fab4-417e-a285-509618092443 /boot ext2 defaults 0 2
#
# UEFI EFI Bootloader (537 MB):
# /boot/efi was on /dev/sda1 during installation
UUID=969A-DA15 /boot/efi vfat umask=0077 0 1
#
# Encrypted Swapping Partition:
#/dev/mapper/ubuntu--gnome--vg-swap_1 none swap sw 0 0
/dev/mapper/cryptswap1 none swap sw 0 0

#

### Boot from EFI & info:
~$ mount | grep efivars
efivarfs on /sys/firmware/efi/efivars type efivarfs (rw,nosuid,nodev,noexec,relatime)

~$ sudo dmidecode -t 0 && sudo dmidecode -t 1 && sudo efibootmgr -v
# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0031, DMI type 0, 24 bytes
BIOS Information
 Vendor: LENOVO
 Version: JDET54WW (1.16 )
 Release Date: 08/19/2015
 Address: 0xE0000
 Runtime Size: 128 kB
 ROM Size: 16384 kB
 Characteristics:
  PCI is supported
  PNP is supported
  BIOS is upgradeable
  BIOS shadowing is allowed
  Boot from CD is supported
  Selectable boot is supported
  ACPI is supported
  USB legacy is supported
  BIOS boot specification is supported
  Targeted content distribution is supported
  UEFI is supported
 BIOS Revision: 1.16
 Firmware Revision: 1.16

# dmidecode 3.0
Getting SMBIOS data from sysfs.
SMBIOS 2.7 present.

Handle 0x0010, DMI type 1, 27 bytes
System Information
 Manufacturer: LENOVO
 Product Name: 20DTCTO1WW
 Version: ThinkPad L450
 Serial Number: PF0E0Y2S
 UUID: 7A299C81-542D-11CB-9157-B3EF24380744
 Wake-up Type: Power Switch
 SKU Number: LENOVO_MT_20DT_BU_Think_FM_ThinkPad L450
 Family: ThinkPad L450

BootCurrent: 0014
Timeout: 0 seconds
BootOrder: 0014,0007,0013,0008,0009,000A,000B,000C,000D,0012
Boot0000 Setup FvFile(721c8b66-426c-4e86-8e99-3457c46ab0b9)
Boot0001 Boot Menu FvFile(126a762d-5758-4fca-8531-201a7f57f850)
Boot0002 Diagnostic Splash Screen FvFile(a7d8d9a6-6ab0-4aeb-ad9d-163e59a7a380)
Boot0003 Lenovo Diagnostics FvFile(3f7e615b-0d45-4f80-88dc-26b234958560)
Boot0004 Startup Interrupt Menu FvFile(f46ee6f4-4785-43a3-923d-7f786c3c8479)
Boot0005 Rescue and Recovery FvFile(665d3f60-ad3e-4cad-8e26-db46eee9f1b5)
Boot0006 MEBx Hot Key FvFile(ac6fd56a-3d41-4efd-a1b9-870293811a28)
Boot0007* USB CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,86701296aa5a7848b66cd49dd3ba6a55)
Boot0008* USB FDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,6ff015a28830b543a8b8641009461e49)
Boot0009* ATA HDD0 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f600)
Boot000A* ATA HDD1 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f601)
Boot000B* ATA HDD2 VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f602)
Boot000C* USB HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,33e821aaaf33bc4789bd419f88c50803)
Boot000D* PCI LAN VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
Boot000E* IDER BOOT CDROM PciRoot(0x0)/Pci(0x16,0x2)/Ata(0,1,0)
Boot000F* IDER BOOT Floppy PciRoot(0x0)/Pci(0x16,0x2)/Ata(0,0,0)
Boot0010* ATA HDD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,91af625956449f41a7b91f4f892ab0f6)
Boot0011* ATAPI CD VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,aea2090adfde214e8b3a5e471856a354)
Boot0012* PCI LAN VenMsg(bc7838d2-0f82-4d60-8316-c068ee79d25b,78a84aaf2b2afc4ea79cf5cc8f3d3803)
Boot0013* Windows Boot Manager HD(2,GPT,172a6698-28e7-4dd8-969b-c6ca3bec6e0c,0x1f4800,0x82000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................
Boot0014* ubuntu HD(1,GPT,9a94ebc2-b0c3-444d-a283-1817e386e928,0x800,0x100000)/File(\EFI\ubuntu\shimx64.efi)

So... I do not have a dual boot on my machine, but I suppose the 'Error parsing PCC subspaces from PCCT', accompanies by quite frequent and random system freezes (I have to REISUB) is due to the the following lines:

~$ sudo efibootmgr -v | grep -i windows
Boot0013* Windows Boot Manager HD(2,GPT,172a6698-28e7-4dd8-969b-c6ca3bec6e0c,0x1f4800,0x82000)/File(\EFI\Microsoft\Boot\bootmgfw.efi)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}....................

I am quite new to Linux Ubuntu and have to admit being kind of startled by the Windows Boot Manager running on my system despite using a clean install of Ubuntu on a factory-new SSD...?

I will be glad to provide further information, if necessarry.
Thank You very much in advance.